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OUT1at

150mA

OUT2at150mA

OUT3at150mA

OUT4at150mA

OUT5at150mA

OUT6at150mA

OUT7at150mA

OUT8at150mA

GateDrive

andControl

Voltage

Supervisor

Comp

Bandgap

Ref

V

ref

–

+

V

ref

GateControl

forOutputs

1Through8

500k

100k

25k

S

R

Q

20- sFilter

EN1

NCS

SCLK

MOSI

7–18V

SYN

R

DELAY

ZVS

5V

OUT

5V

5k

RST

R

DELAY

ZVS

OUT8

OUT8

OUT7

OUT7

OUT6

OUT6

OUT5

OUT5

OUT4

OUT4

OUT3

OUT3

OUT2

OUT2

OUT1

OUT1

Enable

NCS

SCLK

MOSI

V

IN

SYN

10k

Serial

Register

Parallel

Register

Enables

OUT1

GND

GND

10V

I

const

PMOS

Optional,dependent

onheat-management

implementation

(seeNote A)

RST

20

(2W)

W

100kW

100kW

100kW

100kW

6V

6V

TPIC9201

MICROCONTROLLER POWER SUPPLY

AND MULTIPLE LOW-SIDE DRIVER

SLIS115B – APRIL 2005 – REVISED JUNE 2006

FUNCTIONAL BLOCK DIAGRAM

A.

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

3

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