JBW050F1 参数 Datasheet PDF下载

JBW050F Power Modules: dc-dc Converter;

36 to 75 Vdc Input, 3.3 Vdc Output; 33 W

Data Sheet

September 20, 2004

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

Input Voltage:

Continuous:

Transient (100 ms)

I/O Isolation Voltage

Operating Case Temperature

(See Thermal Considerations section.)

Storage Temperature

Symbol

V

I

V

I, trans

—

T

C

T

stg

Min

—

—

—

–40

–55

Max

75

100

1500

100

125

Unit

Vdc

V

Vdc

°C

°C

Electrical Specifications

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

conditions.

Table 1. Input Specifications

Parameter

Operating Input Voltage

Maximum Input Current

(V

I

= 0 V to 75 V; I

O

= I

O, max

):

JBW050F (See Figure 1.)

Inrush Transient

Input Reflected-ripple Current, Peak-to-peak

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

see Figure 8.)

Input Ripple Rejection (120 Hz)

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 fast-acting fuse with a maximum rating of 10 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.

Symbol

V

I

Min

36

Typ

48

Max

75

Unit

Vdc

I

I, max

i

2

t

I

I

—

—

—

—

—

5

1.2

1.0

—

A

A

2

s

mAp-p

—

—

60

—

dB

2

Tyco Electronics Power Systems