TLE 4473 GV53

TLE 4473 GV52

Data Sheet

5

Rev. 1.1, 2008-09-19

Figure 3

Pin Configuration TLE 4473 GV53, TLE 4473 GV52 (top view)

Table 1

Pin Definitions and Functions (TLE 4473 GV53, TLE 4473 GV52)

Pin No.

Symbol Function

1WI

Watchdog input; input for watchdog pulses, positive edge

triggered

2RO2

Reset output for Q2; open collector output

3RO1

Reset and watchdog output for Q1; open collector output

4Q2

Output voltage 2 (5 V); block to GND with a capacitor

C

ESR < 5

5Q1

Output voltage 1 (3.3 V/2.6 V); block to GND with a capacitor

C

6N.C.

Not connected; connect to GND

7I

Input voltage; block to GND directly at the IC with a ceramic

capacitor.

8INH1

Inhibit input 1; low level at INH2 and INH1 disables Q2 and Q1

9INH2

Inhibit input 2; low level disables Q2

10

D2

Reset Delay 2; connect a capacitor to set reset delay for Q2

11

D1

Reset Delay 1; connect a capacitor to GND to set reset delay and

watchdog timing for Q1

12

GND

Ground

Heatsink

N. C.

Not connected; connect to GND

Pin 6 and heat slug should be connected to GND

P-DSO-12-6

AEP03318_4473gv53.VSD

1

WI

2

RO2

3

RO1

12

11

10

D1

D2

4

Q2

5

Q1

6

N.C.

9

8

7

INH2

INH1

I

GND