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OUT1at

150mA

OUT2at150mA

OUT3at150mA

OUT4at150mA

OUT5at150mA

OUT6at150mA

OUT7at150mA

OUT8at150mA

GateDrive

andControl

Voltage

Supervisor

Comp

Bandgap

Ref

V

ref

–

+

V

ref

1.2V

Comp

GateControl

forOutputs

1Through8

EN1

NCS

SCLK

MOSI

7–18V

V

IN

R

DELAY

5V

5k

RST

R

DELAY

BO_OUTZ

OUT8

OUT8

OUT7

OUT7

OUT6

OUT6

OUT5

OUT5

OUT4

OUT4

OUT3

OUT3

OUT2

OUT2

OUT1

OUT1

EN1

NCS

SCLK

MOSI

V

IN

BO

Serial

Register

Parallel

Register

Enables

OUT1

GND

GND

10V

20

(2W)

Ω

I

const

PMOS

Optional,dependent

onheat-management

implementation

(seeNote A)

5V

OUT

RST

100kΩ

100kΩ

100kΩ

50kΩ

Recommended

6V

BO_OUTZ

TPL9202

8-CHANNEL RELAY DRIVER

WITH INTEGRATED 5-V LDO AND BROWN-OUT DETECTION

SLIS124B – JUNE 2006 – REVISED NOVEMBER 2006

FUNCTIONAL BLOCK DIAGRAM

A.

The resistor and Zener diode are required if there is insufficient thermal management allocation.

3

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