Data Sheet

September 23, 2011

QBVW033A0B Series Power Modules; DC-DC Converters

2

Absolute Maximum Ratings

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

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

Device

Symbol

Min

Max

Unit

Input Voltage*

Continuous

-0.3

75

Operating transient ≤ 100mS

100

Non- operating continuous

80

100

Operating Ambient Temperature

All

-40

85

°C

(See Thermal Considerations section)

Storage Temperature

All

-55

125

°C

I/O Isolation Voltage (100% factory Hi-Pot tested)

All





2250

* Input over voltage protection will shutdown the output voltage when the input voltage exceeds threshold level.

Electrical Specifications

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

conditions.

Parameter

Device

Symbol

Min

Typ

Max

Unit

Operating Input Voltage

36

48

75

Maximum Input Current

-

-

12

Input No Load Current

All

80

mA

Input Stand-by Current

All

22

mA

External Input Capacitance

All

100

-

-

μF

Inrush Transient

All

I

-

-

1

A

Input Reflected Ripple Current, peak-to-peak

All

-

40

-

Input Ripple Rejection (120Hz)

All

-

25

-

dB

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 standalone operation to an

integrated part of 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

fast-acting fuse with a maximum rating of 30 A in the ungrounded input lead of the power supply (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 Sheet for further

information.