Data Sheet Rev. 2.3

5

2002-02-20

TLE 4476

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

Operating Range

Parameter

Symbol

Limit Values

Unit

Remarks

min.

max.

Output 1 input voltage

V

I1

4.5

42

V

1)

Output 2 input voltage

V

I1

5.7

42

V

2)

3.3 V regulator

output current

I

O1

0350

mA

–

5 V regulator

output current

I

O2

0430

mA

–

Junction temperature

T

j

– 40

170

°C

3)

Thermal Resistances

Junction case

R

th,j-case

–

3K/W

–

Junction ambient

R

th,j-a

–

80

K/W

4)

1)

Input voltage

V

2)

Input voltage

V

3)

The overtemperature protection is set to > 170

°C. The voltage regulator may not be operated continuously at

170

°C as device reliability will be reduced to 500 h statistic lifetime.

4)

Worst case regarding peak temperature, zero airflow; mounted on a PCB 80

Sn, heat sink area 300 mm