Data Sheet
July 2000
LAW005-Series Power Modules; dc-dc Conver ters:
36 Vdc to 75 Vdc Input; 5 W
The LAW005-Series Power Modules use advanced, surface-
mount technology and deliver high-quality, compact, dc-dc
conversion at an economical price.
Applications
■
Communication equipment
■
Computer equipment
Features
■
Small footprint: 32 mm x 20 mm (1.25 in. x 0.8 in.)
■
Low profile: 10.7 mm (0.42 in.)
■
Wide input voltage range: 36 Vdc to 75 Vdc
■
Input-to-output isolation: 1500 Vdc
■
Operating ambient temperature range:
–25 °C to +71 °C with no derating
■
12.5 W per cubic inch
■
Metal case
■
Burn in 4 hours @ 50 °C, full load
■
Output overcurrent protection, unlimited duration
■
Output overvoltage protection
■
UL
*
1950 Recognized,
CSA
†
C22.2 No. 950-95
Certified,
VDE
‡
0805 (EN60950, IEC950) Licensed
■
CE mark meets 73/23/EEC and 93/68/EEC
directives
§
■
Within FCC Class A radiated limits
Options
■
Short pins: 2.8 mm ± 0.25 mm
(0.110 in. ± 0.010 in.)
Description
The LAW005-Series Power Modules are low-profile dc-dc converters that operate over an input voltage range
of 36 Vdc to 75 Vdc and provide precisely regulated single or dual outputs. The –25 °C to +71 °C operating
temperature range makes it ideal f or electronic data processing applications . The outputs are isolated from the
inputs, allowing versatile polarity configurations and grounding connections. The modules have a maximum
pow er rating of 5 W and a typical full-load efficiency of 80%. Built-in filtering for both input and output minimiz es
the need for external filtering.
*
UL
is a registered trademark of Underwriters Laboratories, Inc.
†
CSA
is a registered trademark of Canadian Standards Association.
‡
VDE
is a trademark of Verband Deutscher Elektrotechniker e.V.
§ This product is intended for integ ration into end-use equipment. All the required procedures for CE marking of end-use equipment should
be followed. (The CE mark is placed on selected products.)
2 Tyco Electronics Corp.
LAW005-Series Power Modules; dc-dc Converters: Data Sheet
36 Vdc to 75 Vdc Input; 5 W July 2000
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.
* At I
O
= I
O, max
, derate linearly to 0 W at 100 °C. Unit guaranteed to start at –40 °C. All parameters will be within specification at T
A
= –25 °C.
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage and resistive load from –25 °C to
+71 °C.
Fusing Considerations
CAUTION: This power module is not internally fused. An input line fuse must always be used.
This encapsulated 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 fus-
ing is not included; however, to achie ve maximum safety and system protection, always use an input line fuse. The
safety agencies require a normal-blow fuse with a maximum rating of 5 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 Symbol Min Max Unit
Input Voltage:
Continuous
Transient (100 ms) V
I
V
I, trans
0
080
100 Vdc
V
Operating Ambient Temperature*
(natural convection) T
A
–25 71 °C
Storage Temperature T
stg
–55 105 °C
I/O Isolation Voltage — — 1500 Vdc
Table 1. Input Specifications
Parameter Symbol Min Typ Max Unit
Operating Input Voltage V
I
36 48 75 Vdc
Input Current
(V
I
= 0 V to V
I, max
; I
O
= I
O, max
)I
I, max
— 250 — mA
Inrush Transient i
2
t — 0.008 — A
2
s
Input Reflected-ripple Current
(See Figure 1.) I
I
— 5 — mAp-p
Tyco Electronics Corp. 3
Data Sheet LAW005-Series Power Modules; dc-dc Converters:
July 2000 36 Vdc to 75 Vdc Input; 5 W
Electrical Specifications
(continued)
Table 2. Output Specifications
Parameter Device Symbol Min Typ Max Unit
Output Voltage Set Point
(V
I
= 48 V; I
O
= I
O, max
; T
A
= 25 °C) LAW005F
LAW005A
LAW005B
LAW005C
LAW005BK
LAW005CL
V
O, set
V
O, set
V
O, set
V
O, set
V
O1, set
V
O2, set
V
O1, set
V
O2, set
3.26
4.95
11.88
14.85
11.88
11.88
14.85
14.85
3.3
5.00
12.00
15.00
12.00
12.00
15.00
15.00
3.33
5.05
12.12
15.15
12.12
12.12
15.15
15.15
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Output Voltage
(Over all line, load, and temperature
conditions until end of life; see Figure 3.)
LAW005F
LAW005A
LAW005B
LAW005C
LAW005BK
LAW005CL
V
O
V
O
V
O
V
O
V
O1
V
O2
V
O1
V
O2
3.17
4.80
11.52
14.40
11.52
–11.52
14.40
–14.40
—
—
—
—
—
—
—
—
3.43
5.20
12.48
15.60
12.48
–12.48
15.60
–15.60
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Output Regulation:
Line (V
I
= 36 V to 75 V)
Load (I
O
= 25% I
O, max)
Load (I
O
= 50% I
O, max
to I
O, max
)
Temperature (T
A
= –25 °C to +71 °C)
All
LAW005F
LAW005A
LAW005B
LAW005C
LAW005BK
LAW005CL
All
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0.2
0.5
0.5
0.5
0.5
1.0
1.0
0.2
%V
O
%V
O
%V
O
%V
O
%V
O
%V
O
%V
O
%V
O
Output Ripple and Noise Voltage
(see Figure 2.):
RMS
Peak-to-peak (5 Hz to 20 MHz) All
All —
——
——
—10
75 mVrms
mVp-p
External Load Capacitance LAW005F
LAW005A
LAW005B
LAW005C
LAW005BK
LAW005CL
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1000
1000
220
150
47
47
µ
F
µ
F
µ
F
µ
F
µ
F
µ
F
Output Current
(At I
O
< I
O, min
, the modules may exceed
output ripple specifications.)
LAW005F
LAW005A
LAW005B
LAW005C
LAW005BK
LAW005CL
I
O
I
O
I
O
I
O
I
O1
I
O2
I
O1
I
O2
0.050
0.050
0.024
0.020
0.012
0.012
0.010
0.010
—
—
—
—
—
—
—
—
1.0
1.0
0.47
0.40
0.23
0.23
0.19
0.19
A
A
A
A
A
A
A
A
Output Current-limit Inception
(V
O
= 90% x V
O, set
)All I
O
— 165 — %I
O, max
Output Short-circuit Current
(duration typ. 8 ms before shutdown;
V
O
≤
60% V
O, nom
)
All I
O
— 300 — %I
O, max
4 Tyco Electronics Corp.
LAW005-Series Power Modules; dc-dc Converters: Data Sheet
36 Vdc to 75 Vdc Input; 5 W July 2000
Efficiency
(V
I, nom
; I
O
= I
O, max
; T
A
= 25 °C; see Figure 3.) LAW005F
LAW005A
LAW005B
LAW005C
LAW005BK
LAW005CL
η
η
η
η
η
η
71
74
77
78
77
78
73
78
80
82
80
80
—
—
—
—
—
—
%
%
%
%
%
%
Dynamic Response
(
∆
I
O
/
∆
t = 1 A/10 µs, V
I
= V
I, nom
, T
A
= 25 °C):
Load Change from I
O
= 50% to 75% of I
O , max
:
Peak Deviation
Settling Time (V
O
< 10% peak deviation)
Load Change from I
O
= 50% to 25% of I
O , max
:
Peak Deviation
Settling Time (V
O
< 10% peak deviation)
All
All
All
All
—
—
—
—
—
—
—
—
1
0.15
1
0.15
—
—
—
—
%V
O, set
ms
%V
O, set
ms
Table 3. Isolation Specifications
Parameter Min Typ Max Unit
Isolation Capacitance — 1000 — pF
Isolation Resistance 100 — — M
Ω
Table 4. General Specifications
Parameter Min Typ Max Unit
Weight — 18 (0.64) 20 (0.71) g (oz.)
Table 2. Output Specifications
(continued)
Parameter Device Symbol Min Typ Max Unit
Electrical Specifications
(continued)
Tyco Electronics Corp. 5
Data Sheet LAW005-Series Power Modules; dc-dc Converters:
July 2000 36 Vdc to 75 Vdc Input; 5 W
Test Configurations
8-489(C).a
Note: Input reflected-ripple current is measured with a simulated
source impedance of 12 µH. Capacitor Cs offsets possible
battery impedance. Current is measured at the input of the
module.
Figure 1. Input Reflected-Ripple Test Setup
8-513(C)
Note: Use a 0.1 µF ceramic capacitor. Scope measurement should
be made using a BNC socket. Position the load between
50.8 mm and 76.2 mm (2 in. and 3 in.) from the module.
Figure 2. Peak-to-Peak Output Noise
Measurement Test Setup
8-204(C)
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 3. Output Voltage and Efficiency
Measurement Test Setup
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
1950,
CSA
C22.2 No. 950-95, and
VDE
0805
(EN60950, IEC950).
If the input source is non-SELV (ELV or a hazardous
voltage greater than 60 Vdc and less than or equal to
75 Vdc), for the module's output to be considered
meeting the requirements of safety extra-low voltage
(SELV), all of the following must be true:
■
The input source is to be provided with reinforced
insulation from any other hazardous voltages, includ-
ing the ac mains.
■
One V
I
pin and one V
O
pin are to be grounded, or
both the input and output pins are to be kept floating.
■
The input pins of the module are not operator acces-
sible.
■
Another SELV reliability test is conducted on the
whole system, as required by the saf ety agencies, on
the combination of supply source and the subject
module to verify that under a single fault, hazardous
voltages do not appear at the module's output.
Note:
Do not ground either of the input pins of the
module without grounding one of the output
pins. This may allow a non-SELV voltage to
appear between the output pins and ground.
The pow er module has e xtr a-low voltage (ELV) outputs
when all inputs are ELV.
The input to these units is to be provided with a maxi-
mum 5 A normal-blow fuse in the ungrounded lead.
TO OSCILLOSCOPE
C
S
220 µF
IMPEDANCE < 0.1 Ω
@ 20 °C, 100 kHz
V
I
(+)
V
I
(–)
L
TEST
BATTERY
12 µH
V
O
(+)
V
O
(–)
RESISTIVE
LOAD
SCOPE
0.1 µF
COPPER STRIP
V
I
(+)
V
I
(–)
V
O
(+)
V
O
(–)
I
I
I
O
SUPPLY
CONTACT RESISTANCE
CONTACT AND
DISTRIBUTION LOSSES
LOAD
ηVO+()
–
V
O
(–)
[]
I
O
V
I
+
()
–
V
I
(–)
[]
I
I
-------------------------------------------------
x
100=%
6 Tyco Electronics Corp.
LAW005-Series Power Modules; dc-dc Converters: Data Sheet
36 Vdc to 75 Vdc Input; 5 W July 2000
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.)
8-1366(C).b
Note: Pinouts are numbered to fit in a standard 24-pin DIP footprint.
* Note insulation thickness when considering clearance from the PWB traces to the metal case.
†Lead trim option: 2.8 mm ± 0.25 mm (0.110 in. ± 0.010 in.).
T op View
Side View
Bottom View
4.6
(0.18)
0.25 (0.01)
MIN 3.0 (0.12)
MIN†0.5 x 0.3
(0.020 x 0.012)
SOLDER-PLATED BRASS,
10 PLACES
0.4
(0.016) TYP
PLASTIC
INSULATOR*METAL
CASE
10.2 (0.40)
MAX
10.7
(0.42)
2.54
(0.100)
STANDOFF DIAMETER
0.90 (0.036) TYP,
4 PLACES
20.3
(0.80)
31.8
(
1.25
)
WHITE DOT
+
–
IN
+–
OUT
IN: DC 36-75V 0.25A
OUT: DC 5V 1A
LAW005A
Lucent
23 91011
2322 161514
22.9 (0.900)
15.24
(0.600)
15.24
(0.600)
4.6
(0.18)
2.54
(0.100)
11.0 (0.43)
Pin Single Duals
2VI(–) VI(–)
3VI(–) VI(–)
9NC
†Common
10 NC†NC†
11 NC†VO(–)
14 VO(+) VO(+)
15 NC†NC†
16 VO(–) Common
22 VI(+) VI(+)
23 VI(+) VI(+)
† No connection.
Tyco Electronics Corp. 7
Data Sheet LAW005-Series Power Modules; dc-dc Converters:
July 2000 36 Vdc to 75 Vdc Input; 5 W
Recommended Hole Pattern
Component-side footprint.
Dimensions are in millimeters and (inches).
8-1366(C).b
Ordering Information
Table 5. Device Codes
Optional features may be ordered using the device code suffixes shown below. The feature suffixes are listed
numerically in descending order. Please contact your Tyco Electronics’ Account Manager or Field Application Engi-
neer for pricing and availability.
Table 6. Device Options
Input V oltage Output V oltage Output Power Device Code Comcode
48 Vdc 3.3 Vdc 3.3 W LA W005F 108070749
48 Vdc 5 Vdc 5 W LA W005A 108070715
48 Vdc 12 Vdc 5 W LA W005B 108070723
48 Vdc 15 Vdc 5 W LA W005C 108070731
48 Vdc ±12 Vdc 5 W LA W005BK 108070756
48 Vdc ±15 Vdc 5 W LA W005CL 108070764
Option Device Code Suffix
Short pins: 2.8 mm ± 0.25 mm (0.110 in. ± 0.010 in.) 8
23 91011
2322 161514
22.9 (0.900)
15.24
(0.600)
15.24
(0.600)
4.6
(0.18)
2.54
(0.100)
20.3
(0.80)
31.8 (1.25)
LAW005-Series Power Modules; dc-dc Converters: Data Sheet
36 Vdc to 75 Vdc Input; 5 W July 2000
Printed on
Recycled Paper
Tyco Electronics Power Systems, Inc.
3000 Skyline Drive, Mesquite, TX 75149, USA
+1-800-526-7819
FAX: +1-888-315-5182
(Outside U.S.A.:
+1-972-284-2626
, FAX: +1-972-284-2900
http://power.tycoeleectronics.com
Tyco Electronics Corportation 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.
© 2001 Tyco Electronics Corporation, Harrisburg, PA. All International Rights Reserved.
Printed in U.S.A.
July 2000
DS99-137EPS (Replaces DS95-176EPS)
