VNI4140K datasheet(1/24 Pages) STMICROELECTRONICS

Part #	VNI4140K

Description	Quad high side smart power solid state relayS

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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July 2008

Rev 3

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24

VNI4140K

Quad high side smart power solid state relay

Features

■ Output current: 0.7 A per channel

■ Shorted load protections

■ Junction over-temperature protection

■ Case overtemperature protection for thermal

independence of the channels

■ Thermal case shut-down restart not

simultaneous for the various channels

■ Protection against loss of ground

■ Current limitation

■ Undervoltage shut-down

■ Open drain diagnostic outputs

■ 3.3 V CMOS/TTL compatible inputs

■ Fast demagnetization of inductive loads

■ Conforms to IEC 61131-2

Description

The VNI4140K is a monolithic device made using

STMicroelectronics VIPower technology, intended

for driving four independent resistive or inductive

loads with one side connected to ground. Active

current limitation avoids dropping the system

power supply in case of shorted load. Built-in

thermal shut-down protects the chip from

overtemperature and short circuit. In overload

condition, channel turns OFF and back ON

automatically so as to maintain junction

temperature between TTSD and TR. If this

condition makes case temperature reach TCSD,

overloaded channel is turned OFF and will restart

only when case temperature has decreased down

to TCR. In case of more than one channel in

overload, re-start of the overloaded channels will

not be simultaneous, in order to avoid high peak

current from the supply. Non overloaded channels

continue to operate normally. The open drain

diagnostics outputs indicates over-temperature

conditions.

Type

Vdemag

(1)

1.

Per channel

RDSon

(1)

Iout

(1)

VCC

VNI4140K

VCC-41 V

0.08

Ω

0.7 A

41 V

PowerSSO-24

Figure 1.

Block diagram

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Similar Part No. - VNI4140K

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STMicroelectronics	VNI4140K	527Kb / 23P	Quad high side smart power solid state relay
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	VNI4140K-32	525Kb / 26P	Quad high side smart power solid state relay
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