S7AH-01FX200 - Bel Fuse Inc. - Datasheet.Directory

Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

NON-ISOLATED DC/DC CONVERTERS

3.0 Vdc - 5.5 Vdc Input 12 Vdc/0.8 A & 15 Vdc/0.6 A Output

• Non-Isolated • Trim Function (option)

• Fixed Frequency (550 kHz)

• High Efficiency

• Low Profile Package

• Allows Burst Mode Operation

at Low Load Currents

• UL60950-1 Recognized (UL/cUL)

Description

The Bel xRAH-01FXx0 is part of the low cost non-isolated dc/dc converter series. The modules use a surface

mount package or vertical package for ease of layout and space savings. The output is closely regulated and the

efficiency of 12 Vdc output module is typically 88% at full load. Typical features include burst mode operation at

light load and trim function (option).

Part Selection

Output

Voltage Input Voltage Max. Output

Current Max. Output

Power Typical

Efficiency Part Number

Surface Mount Part Number

Vertical Mount

12 Vdc 3.0 Vdc - 5.5 Vdc 0.8 A 9.6 W 88% SRAH-01FX20 VRAH-01FX20

15 Vdc 3.0 Vdc - 5.5 Vdc 0.6 A 9.0 W 88% SRAH-01FX50 VRAH-01FX50

Notes: 1. Add “0” suffix at the end of the model number to indicate “Tube Packaging”, and “R” for “Reel

Packaging”, and “G” for “Tray Packaging”.

2. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers.

Absolute Maximum Ratings

Parameter Min Typ Max Notes

Input Voltage (continuous) 2.8 V - 6 V

Ambient Temperature -40 °C - 85 °C

Storage Temperature -40 °C - 125 °C

Input Specifications

Parameter Min Typ Max Notes

Input Voltage 3 V - 5.5 V

Input Current (full load)

VO=12 V

VO=15 V

-

4.3 A

4.0 A

Input Reflected Ripple Current (pk-pk) - 100 mA 150 mA

Input Reflected Ripple Current (rms) - 30 mA 60 mA

With simulated source impedance

of 500 nH, 5 Hz to 20 MHz; Use

270 uF/16 V Oscon capacitor with

ESR = 0.018 ohm max. at 100 kHz

I2t Inrush Current Transient - 0.02 A2s 0.05 A2s

Turn-on Voltage Threshold - 2.8 V 2.9 V

Note: All specifications are typical at 25 °C unless otherwise stated.

xRAH-01FXx0 Series RoHS Com

p

liant Rev.A

Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

NON-ISOLATED DC/DC CONVERTERS

3.0 Vdc - 5.5 Vdc Input 12 Vdc/0.8 A & 15 Vdc/0.6 A Output

Output Specifications

Parameter Min Typ Max Notes

Output Voltage Set Point

VO=12 V

VO=15 V

11.580 V

14.475 V

12 V

15 V

12.420 V

15.525 V

Test condition:

Vin=5 V, lout=full load

Line Regulation

VO=12 V

VO=15 V

-

20 mV

40 mV

Load Regulation

VO=12 V

VO=15 V

-

60 mV

75 mV

120 mV

150 mV

Regulation Over Temperature

(-40 °C to +85 °C)

VO=12 V

VO=15 V

-

45 mV

60 mV

80 mV

100 mV

Output Current

VO=12 V

VO=15 V

0 A

-

0.8 A

0.6 A

Ripple and Noise (rms)

VO=12 V; IO=0 A

VO=15 V; IO=0 A

VO=12 V; IO=0.8 A

VO=15 V; IO=0.6 A

-

5 mV

20 mV

30 mV

10 mV

40 mV

50 mV

Ripple and Noise (pk-pk)

VO=12 V; IO=0 A

VO=15 V; IO=0 A

VO=12 V; IO=0.8 A

VO=15 V; IO=0.6 A

-

20 mV

60 mV

80 mV

40 mV

100 mV

120 mV

Test conditions:

BW = 0-20 MHz; 1uF

ceramic cap and 33 uF

Tantalum capacitor at the

output.

Rise Time - 5 mS -

Overshoot at Turn on - 0% 5%

Output Capacitance 33 uF - 330 uF

The min output

capacitance is 33 uF

Tantalum capacitor at the

output

Transient Response

Overshoot - 130 mV 200 mV

50% ~ 100%

Max Load Settling Time - 100 uS 200 uS

Overshoot - 130 mV 200 mV

100% ~ 50%

Max Load Settling Time

All

Outputs

- 100 uS 200 uS

di/dt = 0.1 A/uS; Vin = 5 V;

and with 33 uF Tantalum

capacitor at the output.

Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated.

Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

NON-ISOLATED DC/DC CONVERTERS

3.0 Vdc - 5.5 Vdc Input 12 Vdc/0.8 A & 15 Vdc/0.6 A Output

General Specifications

Parameter Min Typ Max Notes

Efficiency

VO=12 V

VO=15 V

84%

88%

-

Measured at Vin=5 V, full load

Switching Frequency 500 kHz 550 kHz 650 kHz

Output Trim Range 90% VO - 110% VO

MTBF 13,684,605 hours Calculated Per Bell Core SR-332 (Vin=

5 V; Vo=12 V; IO = 0.64 A; Ta = 25 °C)

Dimensions (surface mount)

Inches (L × W × H)

Millimeters

(

L × W × H

)

0.78 x 0.7 x 0.32

19.81 x 17.78 x 8.13

Dimensions (vertical)

Inches (L × W × H)

Millimeters

(

L × W × H

)

0.7 x 0.308 x 0.65

17.78 x 7.82 x 16.51

Weight - 5.2 g -

Note: All specifications are typical at 25 °C unless otherwise stated.

Output Trim Equations

Equations for calculating the trim resistor (in kΩ) given the desired adjusted voltage (Vadj) and the nominal output

voltage of the converter (Vnom) are shown below. The Trim Down resistor should be connected between the

Trim pin and Vout. The Trim Up resistor should be connected between the Trim pin and Ground. Only one of the

resistors should be used for any given application.

B

VV A

Radjnom

downtrim −

−

=

−

D

VV C

Rnomadj

uptrim −

−

=

−

Vnom A B C D

12 164.640 21.850 11.760 7.150

15.055 209.542 20.600 11.760 5.900

Vout

Trim

GND

Rtrim-dow

n

Module

Vout

Trim

GND

Rtrim-up

Module

Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

NON-ISOLATED DC/DC CONVERTERS

3.0 Vdc - 5.5 Vdc Input 12 Vdc/0.8 A & 15 Vdc/0.6 A Output

Efficiency Data

Efficiency Curve

78.0%

80.0%

82.0%

84.0%

86.0%

88.0%

90.0%

92.0%

0.08 0.20 0.40 0.60 0.80

Output Current (A)

Efficienc

y

3.0 V

5.0 V

5.5

V

Efficiency Curve

70.0%

75.0%

80.0%

85.0%

90.0%

95.0%

0.06 0.15 0.30 0.45 0.60

Output Current (A)

Efficienc

y

3.0 V

5.0 V

5.5

V

xRAH-01FX20 xRAH-01FX50

Thermal Derating Curves

xRAH-01FX20 xRAH-01FX50

Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

NON-ISOLATED DC/DC CONVERTERS

3.0 Vdc - 5.5 Vdc Input 12 Vdc/0.8 A & 15 Vdc/0.6 A Output

Ripple and Noise Waveforms

Ripple and noise at full load, Vin=5 V, Vo=12 V Ripple and noise at no load, Vin=5 V, Vo=12 V

Ripple and noise at full load, Vin=5 V, Vo=15 V Ripple and noise at no load, Vin=5 V, Vo=15 V

Note: Ripple and noise tested with 1 uF ceramic capacitor and 33 uF tantalum capacitor at the output,

Ta=25 deg C.

Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

NON-ISOLATED DC/DC CONVERTERS

3.0 Vdc - 5.5 Vdc Input 12 Vdc/0.8 A & 15 Vdc/0.6 A Output

Transient Response Waveforms

50% to 100% load transient at Vin=5 V, Vo=12 V 100% to 50% load transient at Vin=5 V , Vo=12 V

50% to 100% load transient at Vin=5 V, Vo=15 V 100% to 50% load transient at Vin=5 V , Vo=15 V

Note: Transient response tested at di/dt=0.1 A/uS, with an external 33 uF tantalum load capacitor at the output,

and Ta=25 deg C.

©

2007 Bel Fuse Inc. Specifications subject to change without notice. 011007

CORPORATE FAR EAST EUROPE

Bel Fuse Inc. Bel Fuse Ltd. Bel Fuse Europe Ltd.

206 Van Vorst Street 8F/ 8 Luk Hop Street Preston Technology Management Centre

Jersey City, NJ 07302 San Po Kong Marsh Lane, Suite G7, Preston

Tel 201-432-0463 Kowloon, Hong Kong Lancashire, PR1 8UD, U.K.

Fax 201-432-9542 Tel 852-2328-5515 Tel 44-1772-556601

www.belfuse.com Fax 852-2352-3706 Fax 44-1772-888366

www.belfuse.com www.belfuse.com

NON-ISOLATED DC/DC CONVERTERS

3.0 Vdc - 5.5 Vdc Input 12 Vdc/0.8 A & 15 Vdc/0.6 A Output

Mechanical Outline

SRAH-01FXx0

VRAH-01FXx0

RoHS Compliance

Complies with the European Directive 2002/95/EC, calling for the elimination of lead and

other hazardous substances from electronic products. These parts are not however

compatible with the higher temperatures associated with lead free solder processes and

must be soldered using a reflow profile with a peak temperature of no more than 240 °C.

bel

Pin Connections

Pin Function

1 N/A

2 Vin

3 Ground

4 Vout

5 Trim (option)

6 N/A

7 N/A

Pin Connections

Pin Function

1 N/A

2 Vin

3 Ground

4 Vout

5 Trim (option)

bel