Data Sheet

8

Rev. 1.1, 2008-09-19

TLE 4473 GV53

TLE 4473 GV52

Note: In the operating range the functions given in the circuit description are fulfilled.

Integrated protection functions are designed to prevent IC destruction under fault

conditions. Protection functions are not designed for repetitive operation.

Table 3

Operating Range

Parameter

Symbol

Limit Values

Unit

Remarks

Min.

Max.

Input voltage

V

I

5.6

42

V

Q1 & Q2

4.5

42

V

only Q1 regulating

Junction temperature

T

j

-40

150

°C–

Thermal Resistances PG-DSO-12

Junction pin

R

thj-pin

–3K/W

–

Junction ambient

R

thj-a

–

115

K/W

PCB Heat Sink

Area 0 mm

2 1)

Junction ambient

R

thj-a

–

100

K/W

PCB Heat Sink

Area 100 mm

2 1)

Junction ambient

R

thj-a

–

60

K/W

PCB Heat Sink

Area 300 mm

Junction ambient

R

thj-a

–

48

K/W

PCB Heat Sink

Area 600 mm

2 1)

1) Package mounted on PCB 80