®

October 2002

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UNDERVOLTAGE

OVERTEMPERATURE

GND

INPUT

OUTPUT

OVERVOLTAGE

CURRENT LIMITER

LOGIC

DRIVER

Power CLAMP

CLAMP

DETECTION

DETECTION

DETECTION

K

CURRENT

SENSE

VN920SP

SINGLE CHANNEL HIGH SIDE SOLID STATE RELAY

1

s

CMOS COMPATIBLE INPUT

s

PROPORTIONAL LOAD CURRENT SENSE

s

SHORTED LOAD PROTECTION

s

UNDERVOLTAGE AND OVERVOLTAGE

SHUTDOWN

s

OVERVOLTAGE CLAMP

s

THERMAL SHUTDOWN

s

CURRENT LIMITATION

s

PROTECTION AGAINST LOSS OF GROUND

s

VERY LOW STAND-BY POWER DISSIPATION

s

REVERSE BATTERY PROTECTION (*)

DESCRIPTION

The VN920SP is a monolithic device designed in

STMicroelectronics VIPower M0-3 Technology,

intended for driving any kind of load with one side

clamp protects the device against low energy

spikes

(see

ISO7637

transient

compatibility

table). Active current limitation combined with

thermal shutdown and automatic restart protect

the

device

against

overload.

The

device

integrates an analog current sense output which

delivers a current proportional to the load current.

Device automatically turns off in case of ground

pin disconnection.

TYPE

VN920SP

15m

Ω

30 A

36 V

PowerSO-10

™

1

10

ORDER CODES

PACKAGE

TUBE

T&R

PowerSO-10

BLOCK DIAGRAM

(*) See application schematic at page 8