NH050S1R8-L - GE - Datasheet.Directory

Data Sheet

April 2008

NH033x-L and NH050x-L Series Power Modules:

5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A

The NH033x-L and NH050x-L Series Power Modules use

advanced, surface-mount technology and deliver high-qual-

ity, compact, dc-dc conversion at an economical price.

Applications

nDistributed power architectures

nServers

nWorkstations

nDesktop computers

Features

nSmall size: 69.9 mm x 25.4 mm x 8.6 mm

(2.75 in. x 1.00 in. x 0.34 in.)

nNon-isolated output

nConstant frequency

nHigh efficiency: 91% typical

nOvercurrent protection

nRemote on/off

nOutput voltage adjustment:

90% to 110% of VO, nom: VO Š 2.5 V

100% to 120% of VO, nom: VO < 2.5 V

nOvertemperature protection

nRemote sense

nUL* 60950 Recognized, CSA† C22.2 No. 60950-

00 Certified, VDE 0805 (IEC60950) Licensed

nMeets FCC Class A radiated limits

Options

nTight tolerance output

nShort pins: 2.79 mm ± 0.25 mm

(0.110 in. ± 0.010 in.)

Description

The NH033x-L and NH050x-L Series Power Modules are non-isolated dc-dc converters that operate over an

input voltage range of 4.5 Vdc to 5.5 Vdc and provide a regulated output between 1.2 V and 3.3 V. The open

frame power modules have a maximum output current rating of 10 A and 15 A, respectively, at typical full-load

efficiencies of 91%.

* UL is a registered trademark of Underwriters Laboratories, Inc.

† CSA is a registered trademark of Canadian Standards Association.

NH033x-L and NH050x-L Series Power Modules: Data Sheet

5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A April 2008

2Lineage Power

Absolute Maximum Ratings

Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-

lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess

of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended

periods can adversely affect device reliability.

* Forced convection—200 lfpm minimum. Higher ambient temperatures possible with increased airflow and/or decreased power output. See the

Thermal Considerations section for more details.

Electrical Specifications

Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature

conditions.

Table 1. Input Specifications

Fusing Considerations

CAUTION: This power module is not internally fused. An input line fuse must always be used.

This power module can be used in a wide variety of applications, ranging from simple stand-alone operation to an

integrated part of a sophisticated power architecture. To preserve maximum flexibility, internal fusing is not

included; however, to achieve maximum safety and system protection, always use an input line fuse. The safety

agencies require a normal-blow fuse with a maximum rating of 20 A (see Safety Considerations section). Based on

the information provided in this data sheet on inrush energy and maximum dc input current, the same type of fuse

with a lower rating can be used. Refer to the fuse manufacturer’s data for further information.

Parameter Device Symbol Min Max Unit

Input Voltage (continuous) All VI—7.0Vdc

On/Off Terminal Voltage All Von/off —6.0Vdc

Operating Ambient Temperature*:

NH033x-L

NH050x-L

All

°C

Storage Temperature All Tstg –55 125 °C

Parameter Symbol Min Typ Max Unit

Operating Input Voltage:

Start-up

Continuous Operation

4.75

4.5

—

5.0

—

5.5

Vdc

Maximum Input Current

(VI = 0 V to 5.5 V; IO = IO, max; see Figures 1—8.):

NH033x-L

NH050x-L

II, max

—

Input Reflected-ripple Current, Peak-to-peak

(5 Hz to 20 MHz, 500 nH source impedance;

see Figure 33.)

II—300—mAp-p

Input Ripple Rejection (120 Hz) — — 60 — dB

Data Sheet NH033x-L and NH050x-L Series Power Modules:

April 2008 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A

Lineage Power 3

Electrical Specifications (continued)

Table 2. Output Specifications

Parameter Device Symbol Min Typ Max Unit

Output Voltage Set Point

(VI = 5.0 V; IO = IO, max; TA = 25 °C)

NH0xxM-L

NH0xxS1R8-L

NH0xxG-L

NH0xxF-L

VO, set

1.45

1.74

2.42

3.18

1.5

1.8

2.5

3.3

1.55

1.86

2.58

3.39

Vdc

Output Voltage

(Over all operating input voltage,

resistive load, and temperature

conditions until end of life; see

Figure 35.)

NH0xxM-L

NH0xxS1R8-L

NH0xxG-L

NH0xxF-L

1.43

1.71

2.40

3.16

—

1.58

1.89

2.60

3.44

Vdc

Output Regulation:

Line (VI = 4.5 V to 5.5 V)

Load (IO = 0 to IO, max)

Temperature (TA = 0 °C to 50 °C)

All

—

0.1

—

0.3

%VO

Output Ripple and Noise Voltage

(See Figure 34.):

RMS

Peak-to-peak (5 Hz to 20 MHz) All

All

—

100

mVrms

mVp-p

External Load Capacitance

(See Design Considerations section.)

All — 0 — 15,000 µF

Output Current

(See Derating Curves Figures 50 and

51.)

NH033x-L

NH050x-L

—

10.0

15.0

Output Current-limit Inception

(VO = 90% of VO, set; TQ32 = 80 °C;

see Feature Descriptions section.)

All IO103 — 200 %IO, max

Output Short-circuit Current All IO—170—%IO, max

Efficiency

(VI = 5.0 V; IO = IO, max; TA = 25 °C;

see Figure 35.)

NH033M-L

NH033S1R8-L

NH033G-L

NH033F-L

NH050M-L

NH050S1R8-L

NH050G-L

NH050F-L

90.5

—

Switching Frequency All — — 265 — kHz

Dynamic Response

(ΔIO/Δt = 1 A/10 µs, VI = 5.0 V,

TA = 25 °C):

Load Change from IO = 0% to 100% of

IO, max:

Peak Deviation

Settling Time (VO < 10% peak

deviation)

Load Change from IO = 100% to 0% of

IO, max:

Peak Deviation

Settling Time (VO < 10% peak

deviation)

All

—

200

—

µs

NH033x-L and NH050x-L Series Power Modules: Data Sheet

5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A April 2008

4Lineage Power

General Specifications

Cleanliness Requirements

The open frame (no case or potting) power modules meet specification J-STD-001B. These requirements state

that any solder balls must be attached and their size should not compromise the minimum electrical spacing of the

power module.

The cleanliness designator of the open frame power module is C00 (per J specification).

Feature Specifications

Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature

conditions. See Feature Descriptions and Design Considerations sections for further information.

* Total adjustment of trim and remote sense combined should not exceed 10% for VO ≥ 2.5 V or 20% for VO < 2.5 V.

Parameter Min Typ Max Unit

Calculated MTBF (IO = 80% of IO, max; TA = 40 °C) 1,300,000 hours

Weight — — 14 (0.5) g (oz.)

Parameter Symbol Min Typ Max Unit

Remote On/Off Signal Interface

(VI = 4.5 V to 5.5 V; open collector pnp transistor or

equivalent; signal referenced to GND pin; see Figure 38

and Feature Descriptions section.):

Logic Low (ON/OFF pin open)—Module On:

Ion/off = 0.0 µA

Von/off = 0.3 V

Logic High (Von/off > 2.8 V)—Module Off:

Ion/off = 10 mA

Von/off = 5.5 V

Turn-on Time (IO = IO, max; VO within ±1% of steady

state; see Figures 25—32.)

Von/off

Ion/off

Von/off

Ion/off

—

–0.7

—

3.0

0.3

6.0

—

µA

Output Voltage Adjustment*

(See Feature Descriptions section.):

Output Voltage Remote-sense Range:

For VO ≥ 2.5 V

For VO < 2.5 V

Output Voltage Set-point Adjustment Range (Trim):

For VO ≥ 2.5 V

For VO < 2.5 V

—

VTRIM

—

100

—

110

120

% VO, nom

Overtemperature Protection (shutdown)

(See Feature Descriptions section.)

TQ32 115 120 — °C

Lineage Power 5

Data Sheet NH033x-L and NH050x-L Series Power Modules:

April 2008 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A

Characteristics Curves

8-2415

Figure 1. NH033M-L Input Characteristics,

TA = 25 °C

8-2419

Figure 2. NH050M-L Input Characteristics,

TA = 25 °C

8-2416

Figure 3. NH033S1R8-L Input Characteristics,

TA = 25 °C

8-2420

Figure 4. NH050S1R8-L Input Characteristics,

TA = 25 °C

8-2414

Figure 5. NH033G-L Input Characteristics,

TA = 25 °C

8-2418

Figure 6. NH050G-L Input Characteristics,

TA = 25 °C

0.5 1.5 2.5 3.0 3.5 4.0

INPUT VOLTAGE, V I (V)

5.50.0

4.5 5.0

1.0 2.0

INPUT CURRENT, II (A)

IO = 10 A

1.0 2.0 3.0 4.0

3.5 4.5

INPUT VOLTAGE, VI (V)

5.0

5.50.0

1.5 2.5

IO = 15 A

0.5

INPUT CURRENT, II (A)

0.5 1.0 3.0 3.5 4.0 4.5

INPUT VOLTAGE, V I (V)

5.00.0

2.0 2.51.5

IO = 10 A

5.5

INPUT CURRENT, II (A)

0.5 1.5 2.5 3.0 3.5 4.0

INPUT VOLTAGE, V I (V)

5.50.0

4.5 5.0

1.0 2.0

INPUT CURRENT, II (A)

IO = 15 A

1.51.0 3.5 4.0 4.5 5.0

INPUT VOLTAGE, V I (V)

5.50.0 2.5 3.02.0

INPUT CURRENT, II (A)

IO = 10 A

0.5

0.5 1.0 3.0 3.5 4.0 4.5

INPUT VOLTAGE, V

(V)

5.00.0

2.0 2.51.5 5.

INPUT CURRENT, I

(A)

= 15 A

6Lineage Power

NH033x-L and NH050x-L Series Power Modules: Data Sheet

5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A April 2008

Characteristics Curves (continued)

8-2413(C)

Figure 7. NH033F-L Input Characteristics, T

= 25 °C

8-2417(C)

Figure 8. NH050F-L Input Characteristics, T

= 25 °C

8-2423(C)

Figure 9. NH033M-L Current Limit, TA = 25 °C

8-2427(C)

Figure 10. NH050M-L Current Limit, TA = 25 °C

8-2424(C)

Figure 11. NH033S1R8-L Current Limit, TA = 25 °C

8-2428(C)

Figure 12. NH050S1R8-L Current Limit, TA = 25 °C

2 3 5

IO = 10 A

INPUT VOLTAGE, VI (V)

INPUT CURRENT, II (A)

0.5 1.0 3.0 3.5 4.0 4.5

INPUT VOLTAGE, V

I (V)

5.00.0

2.0 2.51.5

IO = 15 A

INPUT CURRENT, II

(A)

0.4

OUTPUT VOLTAGE, VO (V)

2 4 12 14 16

0.0

OUTPUT CURRENT, I

O (A)

0.6

1.2

0.2

1.6

810613 5 7911131517

1.0

1.4

18 19

VI = 5.0 V

0.8

1.2

0.2

0.0

OUTPUT CURRENT, I

O (A)

0.6

1.0

0.4

0.8

1.6

8 1012 14 16 2426

OUTPUT VOLTAGE, VO (V)

4 20 22

VI = 5.0 (V)

1.4

0.4

OUTPUT VOLTAGE, VO (V)

24 12

14 16

0.0

OUTPUT CURRENT, I

O (A)

0.6

1.0

0.2

1.8

0810613 57911 13 15 17 20

1.4

0.8

1.2

1.6

1819

VI = 5.0 V

OUTPUT VOLTAGE, VO (V)

1.2

0.2

0.0

OUTPUT CURRENT, I

O (A)

0.6

1.0

0.4

0.8

1.8

8 1012 14 16 2426

2 4 20 22

= 5.0 (V)

1.4

1.6

Lineage Power 7

Data Sheet NH033x-L and NH050x-L Series Power Modules:

April 2008 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A

Characteristics Curves (continued)

8-2422(C)

Figure 13. NH033G-L Current Limit, TA = 25 °C

8-2426(C)

Figure 14. NH050G-L Current Limit, TA = 25 °C

8-2421(C)

Figure 15. NH033F-L Current Limit, TA = 25 °C

8-2425(C)

Figure 16. NH050F-L Current Limit, TA = 25 °C

8-2431(C)

Figure 17. NH033M-L Efficiency, TA = 25 °C

8-2435(C)

Figure 18. NH050M-L Efficiency, TA = 25 °C

OUTPUT VOLTAGE, VO (V)

2 4 12 14 16

0.0

OUTPUT CURRENT, I

(A)

1.5

0.5

2.5

810613 5 7911131517

1.0

2.0

18 19

VI = 5.0 V

0.5

0.0

OUTPUT CURRENT, I

O (A)

1.5

2.5

1.0

2.0

22 24

OUTPUT VOLTAGE, VO (V)

64 8101214161820

VI = 5.0 V

026 28

1.0

OUTPUT VOLTAGE, VO (V)

2 4 12 14 16

0.0

OUTPUT CURRENT, I

O (A)

1.5

2.5

0.5

3.5

81061 3 5 7 9 11131517

2.0

3.0

1819

VI = 5 V

0.5

0.0

OUTPUT CURRENT, I

O (A)

1.5

2.5

1.0

3.0

2.0

3.5

22 24

OUTPUT VOLTAGE, VO (V)

64 8 1012 141618 20

VI = 5.0 V

EFFICIENCY, η (%)

85.5

84.5

83.0

12 6789

82.0

OUTPUT CURRENT, IO

(A)

83.5

84.0

82.5

86.0

100 4 53

85.0

VI = 4.5 V

VI = 5.0 V

VI = 5.5 V

1 3 11 13

OUTPUT CURRENT, IO (A)

0 7 95 152 4 6 8 10 12 14

EFFICIENCY, η (%)

VI = 4.5 V

VI = 5.0V

VI = 5.5 V

8Lineage Power

NH033x-L and NH050x-L Series Power Modules: Data Sheet

5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A April 2008

Characteristics Curves (continued)

8-2432(C)

Figure 19. NH033S1R8-L Efficiency, TA = 25 °C

8-2436(C)

Figure 20. NH050S1R8-L Efficiency, TA = 25 °C

8-2430(C)

Figure 21. NH033G-L Efficiency, TA = 25 °C

8-2434(C)

Figure 22. NH050G-L Efficiency, TA = 25 °C

8-2429(C)

Figure 23. NH033F-L Efficiency, TA = 25 °C

8-2433(C)

Figure 24. NH050F-L Efficiency, TA = 25 °C

EFFICIENCY, η (%)

12 6789

84.0

86.5

OUTPUT CURRENT, IO

(A)

85.5

85.0

86.0

87.5

100

87.0

84.5

4 53

VI = 4.5 V

VI = 5.0 V

VI = 5.5 V

83.5

84.5

86.5

85.5

1 3 11 13

82.0

OUTPUT CURRENT, IO (A)

82.5

87.0

0 7 95 152 4 6 8 10 12 14

EFFICIENCY, η (%)

VI = 4.5 V

VI = 5.0 V

VI = 5.5 V

83.0

84.0

86.0

85.0

EFFICIENCY, η (%)

12 6789

87.0

89.5

OUTPUT CURRENT, IO

(A)

88.5

88.0

89.0

90.5

90.0

87.5

4 53 10

VI = 4.5 V

VI = 5.0 V

VI = 5.5 V

1 3 11 13

OUTPUT CURRENT, IO (A)

0 7 95 152 4 6 8 10 12 14

EFFICIENCY, η (%)

VI = 4.5 V

VI = 5.0 V

VI = 5.5 V

12 6789

90.5

92.5

OUTPUT CURRENT, IO (A)

91.5

91.0

92.0

100

93.0

90.5

4 53

VI = 4.5 V

VI = 5.0 V

VI = 5.5 V

EFFICIENCY, η (%)

89.5

90.5

92.5

91.5

1 3 11 13

88.0

OUTPUT CURRENT, IO (A)

88.5

93.0

0 7 95 152 4 6 8 10 12 14

EFFICIENCY, η (%)

89.0

90.0

92.0

91.0

VI = 4.5 V

VI = 5.5 V

VI = 5.0 V

Lineage Power 9

Data Sheet NH033x-L and NH050x-L Series Power Modules:

April 2008 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A

Characteristics Curves (continued)

8-2439(C)

Figure 25. NH033M-L Typical Start-Up from Remote

On/Off, VI = 5 V, IO = 10 A

8-2442(C)

Figure 26. NH050M-L Typical Start-Up from Remote

On/Off, VI = 5 V, IO = 15 A

8-2440(C)

Figure 27. NH033S1R8-L Typical Start-Up from

Remote On/Off, VI = 5 V, IO = 10 A

8-2452(C)

Figure 28. NH050S1R8-L Typical Start-Up from

Remote On/Off, VI = 5 V, IO = 15 A

TIME, t (500 µs/div)TIME, t (500 µs/div)

OUTPUT VOLTAGE, VO (V)

(1 V/div.)

REMOTE ON/OFF,

VON/OFF (V)

TIME, t (500 µs/div)TIME, t (500 µs/div)

REMOTE ON/OFF,

ON/OFF

(V)

OUTPUT VOLTAGE, V

(V)

(500 mV/div.)

TIME, t (500 µs/div)TIME, t (500 µs/div)

REMOTE ON/OFF,

VON/OFF (V)

OUTPUT VOLTAGE, VO (V)

(1 V/div.)

TIME, t (500 µs/div)TIME, t (500 µs/div)

OUTPUT VOLTAGE, V

(V)

(1 V/div.)

REMOTE ON/OFF,

ON/OFF

(V)

NH033x-L and NH050x-L Series Power Modules: Data Sheet

5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A April 2008

1010 Lineage Power

Characteristics Curves (continued)

8-2438(C)

Figure 29. NH033G-L Typical Start-Up from Remote

On/Off, VI = 5 V, IO = 10 A

8-2443(C)

Figure 30. NH050G-L Typical Start-Up from Remote

On/Off, VI = 5 V, IO = 15 A

8-2437(C)

Figure 31. NH033F-L Typical Start-Up from Remote

On/Off, VI = 5 V, IO = 10 A

8-2441(C)

Figure 32. NH050F-L Typical Start-Up from Remote

On/Off, VI = 5 V, IO = 15 A

TIME, t (500 µs/div)TIME, t (500 µs/div)

OUTPUT VOLTAGE, VO (V)

(1 V/div.)

REMOTE ON/OFF,

VON/OFF ( V)

TIME, t (500 µs/div)TIME, t (500 µs/div)

REMOTE ON/OFF,

VON/OFF (V)

OUTPUT VOLTAGE, VO (V)

(1 V/div.)

TIME, t (500 µs/div)

REMOTE ON/OFF,

VON/OFF (V)

OUTPUT VOLTAGE, VO (V)

(1 V/div.)

TIME, t (500 µs/div)TIME, t (500 µs/div)

OUTPUT VOLTAGE, VO (V)

(1 V/div.)

REMOTE ON/OFF,

VON/OFF ( V)

Data Sheet NH033x-L and NH050x-L Series Power Modules:

April 2008 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A

Lineage Power 11

Test Configurations

8-203(C).h

Note: Input reflected-ripple current is measured with a simulated

source impedance of 500 nH. Capacitor CS offsets possible

battery impedance. Current is measured at the input of the

module.

Figure 33. Input Reflected-Ripple Test Setup

8-513(C).r

Note: Use a 0.1 µF ceramic capacitor and a 1,000 µF aluminum or

tantalum capacitor (ESR = 0.05 ¾ @ 100 kHz). Scope mea-

surement should be made using a BNC socket. Position the

load between 50 mm and 80 mm (2 in. and 3 in.) from the

module.

Figure 34. Peak-to-Peak Output Noise

Measurement Test Setup

8-1173(C).a

Note: All measurements are taken at the module terminals. When

socketing, place Kelvin connections at module terminals to

avoid measurement errors due to socket contact resistance.

Figure 35. Output Voltage and Efficiency

Measurement Test Setup

Design Considerations

Input Source Impedance

The power module should be connected to a low ac-

impedance input source. Highly inductive source

impedances can affect the stability of the NH033x-L

and NH050x-L Series Power Modules. Adding external

capacitance close to the input pins of the module can

reduce the ac impedance and ensure system stability.

The minimum recommended input capacitance (C1) is

a 470 µF electrolytic capacitor with an ESR ð 0.02 Ω @

100 kHz. Verify the quality and layout of these capaci-

tors by ensuring that the ripple across the module input

pins is less than 1 Vp-p at IO = IO, max. (See Figures 33,

36, and 37.)

The 470 µF electrolytic capacitor (C1) should be added

across the input of the NH033x-L or NH050x-L to

ensure stability of the unit. The electrolytic capacitor

should be selected for ESR and RMS current ratings to

ensure safe operation in the case of a fault condition.

The input capacitor for the NH033x-L and NH050x-L

series should be rated to handle 10 Arms.

When using a tantalum input capacitor, take care not to

exceed the tantalum capacitor power rating because of

the capacitor’s failure mechanism (for example, a short

circuit).

8-1215(C).a

Figure 36. Setup with External Capacitor to Reduce

Input Ripple Voltage

To reduce the amount of ripple current fed back to the

input supply (input reflected-ripple current), an external

input filter can be added. Up to 10 µF of ceramic

capacitance (C2) may be externally connected to the

input of the NH033x-L or NH050x-L, provided the

source inductance (LSOURCE) is less than 1 µH (see

Figure 36).

TO OSCILLOSCOPE

500 µH

220 µF

ESR < 0.1 Ω

@ 20 ˚C, 100 kHz

(+)

BATTERY CI 470 µF

CURRENT

PROBE

TEST

ESR < 0.2 Ω

@ 100 kHz

GND

1.0 µF RESISTIVE

LOAD

SCOPE

COPPER STRIP

1000 µF

GND

VIVO

IIIO

SUPPLY

CONTACT RESISTANCE

CONTACT AND

DISTRIBUTION LOSSES

LOAD

GND

SENSE(+)

SENSE(-)

ηVO IO×

VI II×

------------------------x100=%

TO OSCILLOSCOPE

1 µH (MAX)

GND

SUPPLY

CURRENT

PROBE

SOURCE

10 µF (MAX)

470 µF

NH033x-L and NH050x-L Series Power Modules: Data Sheet

5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A April 2008

1212 Lineage Power

Design Considerations (continued)

Input Source Impedance (continued)

To further reduce the input reflected ripple current, a

filter inductor (LFILTER) can be connected between the

supply and the external input capacitors (see Figure

37). The filter inductor should be rated to handle the

maximum power module input current of 10 Adc for the

NH033x-L and 16 Adc for the NH050x-L.

If the amount of input reflected-ripple current is unac-

ceptable with an external L-C filter, more capacitance

may be added across the input supply to form a C-L-C

filter. For best results, the filter components should be

mounted close to the power module.

8-1216(C).a

Figure 37. Setup with External Input Filter to

Reduce Input Reflected-Ripple Current

and Ensure Stability

Output Capacitance

The NH033x-L and NH050x-L Series Power Modules

can be operated with large values of output capaci-

tance. In order to maintain stability, choose a capacitor

bank so that the product of their capacitance and ESR

is greater than 50 x 10–6 (e.g., 1,000 µF x 0.05 Ω =

50 x 10–6). For complex or very low ESR filters, consult

the Technical Support for stability analysis.

Safety Considerations

For safety-agency approval of the system in which the

power module is used, the power module must be

installed in compliance with the spacing and separation

requirements of the end-use safety agency standard,

i.e., UL 60950, CSA C22.2 No. 60950-00, and VDE

0805 (IEC60950).

For the converter output to be considered meeting the

requirements of safety extra-low voltage (SELV), the

input must meet SELV requirements.

The power module has extra-low voltage (ELV) outputs

when all inputs are ELV.

The input to these units is to be provided with a maxi-

mum 20 A normal-blow fuse in the ungrounded lead.

Feature Descriptions

Overcurrent Protection

To provide protection in a fault condition, the unit is

equipped with internal overcurrent protection. The unit

operates normally once the fault condition is removed.

Under some extreme overcurrent conditions, the unit

may latch off. Once the fault is removed, the unit can

be reset by toggling the remote on/off signal for one

second or by cycling the input power.

Remote On/Off

To turn the power module on and off, the user must

supply a switch to control the voltage at the ON/OFF

pin (Von/off). The switch should be an open collector pnp

transistor connected between the ON/OFF pin and the

VI pin or its equivalent (see Figure 38).

During a logic low when the ON/OFF pin is open, the

power module is on and the maximum Von/off generated

by the power module is 0.3 V. The maximum allowable

leakage current of the switch when Von/off = 0.3 V and

VI= 5.5 V (Vswitch = 5.2 V) is 50 µA.

During a logic high, when Von/off = 2.8 V to 5.5 V, the

power module is off and the maximum Ion/off is 10 mA.

The switch should maintain a logic high while sourcing

10 mA.

Leave the remote ON/OFF pin open if not using that

feature.

The module has internal capacitance to reduce noise

at the ON/OFF pin. Additional capacitance is not gen-

erally needed and may degrade the start-up character-

istics of the module.

TO OSCILLOSCOPE

GND

SUPPLY

CURRENT

PROBE

SOURCE

470 µF

FILTER

Data Sheet NH033x-L and NH050x-L Series Power Modules:

April 2008 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A

Lineage Power 13

Feature Descriptions (continued)

Remote On/Off (continued)

CAUTION: Never ground the ON/OFF pin. Ground-

ing the ON/OFF pin disables an impor-

tant safety feature and may damage the

module or the customer system.

8-1175(C).a

Figure 38. Remote On/Off Implementation

Remote Sense

Remote sense minimizes the effects of distribution

losses by regulating the voltage at the remote-sense

connections. The voltage between the remote-sense

pins and the output pins must not exceed the output

voltage sense range given in the Feature Specifications

table.

The voltage between the VO and GND pins must not

exceed 110% of VO, nom for VO ≥ 2.5 V or 120% of

VO, nom for VO < 2.5 V. This limit includes any increase

in voltage due to remote-sense compensation and out-

put voltage set-point adjustment (trim), see Figure 39.

If not using the remote-sense feature to regulate the out-

put at the point of load, connect SENSE(+) to VO and

SENSE(–) to GND at the module.

8-651(C).i

Figure 39. Effective Circuit Configuration for

Single-Module Remote-Sense Operation

Output Voltage Set-Point Adjustment

(Trim)

Output voltage set-point adjustment allows the output

voltage set point to be increased or decreased by con-

necting an external resistor between the TRIM pin and

either the SENSE(+) pin (decrease output voltage) or

SENSE(–) pin (increase output voltage). The trim

range for modules that produce 2.5 VO or greater is

±10% of VO, nom. The trim range for modules that pro-

duce less than 2.5 VO is +20%, –0%.

Connecting an external resistor (Rtrim-down) between the

TRIM and SENSE(+) pin decreases the output voltage

set point as defined in the following equation.

For the F (3.3 VO) module:

For the G (2.5 VO) module:

Note: Output voltages below 2.5 V cannot be trimmed

down.

Connecting an external resistor (Rtrim-up) between the

TRIM and SENSE(–) pins increases the output voltage

set point to VO, adj as defined in the following equation.

For the G (2.5 VO) module:

For all other modules:

Leave the TRIM pin open if not using that feature.

Overvoltage Protection

Overvoltage protection is not provided in the power

module. External circuitry is required to provide over-

voltage protection.

on/off

ON/OFF

GND

on/off

switch

SENSE(+)

SENSE(-)

CONTACT AND

DISTRIBUTION LOSSES

CONTACT

RESISTANCE

GND

SUPPLY LOAD

Rtrim-down 18.23

VOVO adj,–

------------------------------47.2–

⎝⎠

⎛⎞

kΩ=

Rtrim-down 6.98

VOVO adj,–

------------------------------24–

⎝⎠

⎛⎞

kΩ=

Rtrim-up 28

VO adj,VO–

------------------------------10–

⎝⎠

⎛⎞

kΩ=

Rtrim-up 28

VO adj,VO–

------------------------------33.2–

⎝⎠

⎛⎞

kΩ=

NH033x-L and NH050x-L Series Power Modules: Data Sheet

5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A April 2008

1414 Lineage Power

Feature Descriptions (continued)

Overtemperature Protection

To provide additional protection in a fault condition, the

unit is equipped with a nonlatched thermal shutdown

circuit. The shutdown circuit engages when Q32

exceeds approximately 120 °C. The unit attempts to

restart when Q32 cools down. The unit cycles on and

off if the fault condition continues to exist. Recovery

from shutdown is accomplished when the cause of the

overheating condition is removed.

Thermal Considerations

The power modules operate in a variety of thermal

environments; however, sufficient cooling should be

provided to help ensure reliable operation of the unit.

Heat is removed by conduction, convection, and radia-

tion to the surrounding environment.

The thermal data presented is based on measure-

ments taken in a wind tunnel. The test setup shown in

Figure 40 was used to collect data for Figures 50 and

51. Note that the airflow is parallel to the long axis of

the module. The derating data applies to airflow along

either direction of the module’s long axis.

The module runs cooler when it is rotated 90° from the

direction shown in Figure 40. This thermally preferred

orientation increases the maximum ambient tempera-

tures 4 °C to 5 °C from the maximum values shown in

Figures 50 and 51.

8-1199(C).a

Note: Dimensions are in millimeters and (inches).

Figure 40. Thermal Test Setup

Proper cooling can be verified by measuring the power

module’s temperature at lead 7 of Q32 as shown in

Figure 41.

8-1149(C).b

Figure 41. Temperature Measurement Location

The temperature at this location should not exceed

115 °C at full power. The output power of the module

should not exceed the rated power.

Convection Requirements for Cooling

To predict the approximate cooling needed for the mod-

ule, determine the power dissipated as heat by the unit

for the particular application. Figures 42 through 49

show typical power dissipation for the module over a

range of output currents.

8-2446(C)

Figure 42. NH033M-L Typical Power Dissipation vs.

Output Current, TA = 25 °C

AIRFLOW

203.2 (8.0)

76.2 (3.0)

AIR VELOCITY

AND AMBIENT

TEMPERATURE

MEASURED HERE

POWER MODULE

25.4 (1.0)

LEAD #7

Q32

12 6789

0.5

3.0

OUTPUT CURRENT, I

O (A)

2.0

1.5

2.5

100

3.5

1.0

4 53

VI = 5.5 V

VI = 5.0 V

VI = 4.5 V

POWER DISSIPATION, PD (W)

Data Sheet NH033x-L and NH050x-L Series Power Modules:

April 2008 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A

Lineage Power 15

Thermal Considerations (continued)

Convection Requirements for Cooling

(continued)

8-2450(C)

Figure 43. NH050M-L Typical Power Dissipation vs.

Output Current, TA = 25 °C

8-2447(C)

Figure 44. NH033S1R8-L Typical Power Dissipation

vs. Output Current, TA = 25 °C

8-2451(C)

Figure 45. NH050S1R8-L Typical Power Dissipation

vs. Output Current, TA = 25 °C

8-2445(C)

Figure 46. NH033G-L Typical Power Dissipation vs.

Output Current, TA = 25 °C

2.0

3.0

5.0

4.0

1 3 11 13

0.5

OUTPUT CURRENT, I

O (A)

1.0

0 7 95 152 4 6 8 10 12 14

1.5

2.5

4.5

3.5

6.0

5.5

VI = 5.5 V

VI = 5.0 V

VI = 4.5 V

POWER DISSIPATION, PD (W)

12 6789

0.5

3.0

OUTPUT CURRENT, I

O (A)

2.0

1.5

2.5

100

3.5

1.0

4 53

VI = 5.5 V

VI = 5.0 V

VI = 4.5 V

POWER DISSIPATION, PD

(W)

2.0

3.0

5.0

4.0

1 3 11 13

0.5

OUTPUT CURRENT, I

(A)

1.0

0 7 95 152 4 6 8 10 12 14

1.5

2.5

4.5

3.5

6.0

5.5

= 5.5 V

= 5.0 V

= 4.5 V

POWER DISSIPATION, P

(W)

12 6789

0.5

3.0

OUTPUT CURRENT, I

O (A)

2.0

1.5

2.5

100

3.5

1.0

4 53

VI = 5.5 V

VI = 5.0 V

VI = 4.5 V

POWER DISSIPATION, PD

(W)

NH033x-L and NH050x-L Series Power Modules: Data Sheet

5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A April 2008

1616 Lineage Power

Thermal Considerations (continued)

Convection Requirements for Cooling

(continued)

8-2449(C)

Figure 47. NH050G-L Typical Power Dissipation vs.

Output Current, TA = 25 °C

8-2444(C)

Figure 48. NH033F-L Typical Power Dissipation vs.

Output Current, TA = 25 °C

8-2448(C)

Figure 49. NH050F-L Typical Power Dissipation vs.

Output Current, TA = 25 °C

With the known power dissipation and a given local

ambient temperature, the minimum airflow can be cho-

sen from the derating curves in Figures 50 and 51.

8-1425(C).c

Figure 50. NH033x-L Power Derating vs. Local

Ambient Temperature and Air Velocity

2.0

3.0

5.0

4.0

1 3 11 13

0.5

OUTPUT CURRENT, I

(A)

1.0

0 7 95 152 4 6 8 10 12 14

1.5

2.5

4.5

3.5

6.0

5.5

= 5.5 V

= 5.0 V

= 4.5 V

POWER DISSIPATION, P

(W)

12 6789

0.5

3.0

OUTPUT CURRENT, I

O (A)

2.0

1.5

2.5

100

3.5

1.0

4 53

VI = 5.5 V

VI = 5.0 V

VI = 4.5 V

POWER DISSIPATION, PD (W)

2.0

3.0

5.0

4.0

1 3 11 13

0.5

OUTPUT CURRENT, I

(A)

1.0

0 7 95 152 4 6 8 10 12 14

1.5

2.5

4.5

3.5

6.0

5.5

= 5.5 V

= 4.5 V

= 5.0 V

POWER DISSIPATION, P

(W)

0 25 45 55 125

AMBIENT TEMPERATURE, T A (˚C)

POWER DISSIPATION, PD (W)

35 65

75 85 95 105 115

11.5 m/s (300 ft./min.)

1.0 m/s (200 ft./min.)

0.5 m/s (100 ft./min.)

NATURAL

CONVECTION

2.0 m/s (400 ft./min.)

3.0 m/s (600 ft./min.)

TYPICAL 5.5 VI,

10 A

OUT DISSIPATION

TYPICAL 5.0 VI,

10 A

OUT DISSIPATION

Data Sheet NH033x-L and NH050x-L Series Power Modules:

April 2008 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A

Lineage Power 17

Thermal Considerations (continued)

Convection Requirements for Cooling

(continued)

8-1426(C).b

Figure 51. NH050x-L Power Derating vs. Local

Ambient Temperature and Air Velocity

For example, if the NH050F-L dissipates 4 W of heat,

the minimum airflow in a 65 °C environment is 1 m/s

(200 ft./min.).

Keep in mind that these derating curves are approxi-

mations of the ambient temperatures and airflows

required to keep the power module temperature below

its maximum rating. Once the module is assembled in

the actual system, the module’s temperature should be

checked as shown in Figure 41 to ensure it does not

exceed 115 °C.

POWER DISSIPATION, PD (W)

5 15 35 45 115

AMBIENT TEMPERATURE, T A (˚C)

25 55

65 75 85 95 105

1.5 m/s (300 ft./min.)

1.0 m/s (200 ft./min.)

0.5 m/s (100 ft./min.)

NATURAL

CONVECTION

2.0 m/s (400 ft./min.)

3.0 m/s (600 ft./min.)

TYPICAL 5.5 VI,

15 AOUT DISSIPATION

TYPICAL 5.0 VI,

15 AOUT

DISSIPATION

NH033x-L and NH050x-L Series Power Modules: Data Sheet

5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A April 2008

18 Lineage Power

Outline Diagram

Dimensions are in millimeters and (inches).

Tolerances: x.x mm ± 0.5 mm (x.xx in. ± 0.02 in.), x.xx mm ± 0.25 mm (x.xxx in. ± 0.010 in.).

8-1176(C).b

* Label includes product designation and date code.

5.84

(0.230)

25.4

(1.00)

8.6

(0.34)

MAX

SQUARE PIN

0.64 x 0.64

(0.025 x 0.025)

45.7 (1.80)

48.3 (1.90)

43.2 (1.70)

40.6 (1.60)

2.54 (0.100)

1.8

(0.07)

7.62

(0.300)

5.08

(0.200)

20.3

(0.8

2.54

(0.100)

17.3

(0.68)

17.8

(0.70)

69.9 (2.75)

25.4

(1.00)

LABEL*

Bottom View

Side View

Top View

Data Sheet NH033x-L and NH050x-L Series Power Modules:

April 2008 5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A

Lineage Power 19

Recommended Hole Pattern

Dimensions are in millimeters and (inches).

Tolerances: x.xx mm ± 0.13 mm (x.xxx in. ± 0.005 in.).

8-1176(C).b

PinFunctionPinFunction

J1 - 1 Remote On/Off J2 - 1 SENSE (–)

J1 - 2 No Connection J2 - 2 SENSE (+)

J1 - 3 TRIM J2 - 3 VO

J1 - 4 GND J2 - 4 VO

J1 - 5 GND J2 - 5 VO

J1 - 6 VIJ2 - 6 VO

J1 - 7 VIJ2 - 7 GND

J1 - 8 VIJ2 - 8 GND

45.72 (1.800)

70.4 (2.77) MAX

58 54

48.26 (1.900)

43.18 (1.700)

40.64 (1.600)

2.54 (0.100)

17.53

(0.690)

7.62

(0.300)

5.08

(0.200)

20.3

(0.80

17.78

(0.700)

2.54

(0.100)

2.03

(0.080)

25.9

(1.02)

MAX

PLATED HOLE SIZE

1.32 (0.052)

NH033x-L and NH050x-L Series Power Modules: Data Sheet

5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A April 2008

April 2008

FDS01-070EPS (Replaces FDS01-069EPS)

World Wide Headquarters

Lineage Power Corporation

3000 Skyline Drive, Mesquite, TX 75149, USA

+1-800-526-7819

(Outside U.S.A.: +1-972-284-2626 )

www.lineagepower.com

e-mail: techsupport1@lineagepower.com

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Tel: +65 6416 4283

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Tel: +49 89 6089 286

India He adquarters

Tel: +91 80 28411633

Lineage Power reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or

application. No rights under any patent accompany the sale of any such product(s) or information.

Ordering Information

Please contact your Lineage Power Account Manager or Field Application Engineer for pricing and availability.

Table 3. Device Codes

Table 4. Device Options

Input Voltage Output Voltage Output Power Device Code Comcode

5 V 1.5 V 15 W NH033M-L 107993685

5 V 1.8 V 18 W NH033S1R8-L 107940306

5 V 2.5 V 25 W NH033G-L 107917122

5 V 3.3 V 33 W NH033F-L 107859928

5 V 1.5 V 22.5 W NH050M-L 107993693

5 V 1.8 V 27 W NH050S1R8-L 107940314

5 V 2.5 V 37.5 W NH050G-L 107917130

5 V 3.3 V 50 W NH050F-L 107917148

Option Suffix

Tight tolerance output 2

Short pins: 2.79 mm ± 0.25 mm

(0.110 in. ± 0.010 in.)