2

Lineage Power

Data Sheet

April 2008

36 Vdc to 75 Vdc Input; Dual Outputs; 25 W

DW025 Dual Output-Series Power Modules: dc-dc Converters;

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.

Parameter

Symbol

Min

Max

Unit

Input Voltage

Continuous

Transient (<10 ms)

—

—

80

100

V

V

I/O Isolation Voltage

dc

Transient (1 minute)

—

—

—

—

500

850

V

V

Operating Case Temperature

–40

100

°C

Storage Temperature

–55

125

°C

Electrical Specifications

Note: Two pinouts are available for the DW025-Series Power Modules. The DW025AJ-M, AB-M, BK-M, and

CL-M Power Modules, which have both positive and negative outputs, have a common output ground pin

(pinout A). The DW025AA-M, AB-M, AF-M, BB-M, and CC-M Power Modules, which have dual positive out-

puts, have separate output ground pins (pinout B). See Outline Diagrams section.

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

temperature conditions.

Table 1. Input Specifications

Parameter

Symbol

Min

Typ

Max

Unit

Operating Input Voltage

36

48

75

Vdc

Maximum Input Current

—

—

2.0

A

Inrush Transient

—

—

0.8

Input Reflected-ripple Current, Peak-to-Peak

(5 Hz to 20 MHz, 12 µH source impedance;

Considerations section.)

—

—

25

—

mAp-p

Input Ripple Rejection (120 Hz)

—

—

60

—

dB

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 achieve maximum safety and system protection, always use an input line fuse. The

safety agencies require a normal-blow, dc 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.