Data Sheet

8

Rev. 1.2, 2008-03-20

TLE 4470

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

Table 4

Operating Range

Parameter

Symbol

Limit Values

Unit

Remarks

Min.

Max.

Stand-by regulator

input voltage

V

I1

5.6

45

V

–

Main regulator

input voltage

V

I2

V

Q2,nom

+ 0.6 V

45

V

–

Stand-by regulator

output current

I

Q1

0180

mA

–

Main regulator

output current

I

Q2

0350

mA

–

Disable input voltage

V

DIS

-0.3

45

V

–

Sense input voltage

V

SI

-0.3

17

V

–

Junction temperature

T

j

-40

150

°C–

Thermal Resistances PG-DSO-14

Junction pin

R

thj-pin

–

32

K/W

Measured to pin 4

Junction ambient

R

thj-a

–112

K/W

1)

Thermal Resistances PG-DSO-20

Junction pin

R

thj-pin

–

23

K/W

Measured to pin 4

Junction ambient

R

thj-a

–100

K/W

1)

1) Package mounted on PCB 80