VN7140AS datasheet(16/45 Pages) STMICROELECTRONICS

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SEn SEL1 SEL0

MUX channel

MultiSense output

Normal mode

Overload

OFF-state diag. (1)

Negative output

N.A.

Hi-Z

N.A.

Channel diagnostic ISENSE = 1/K * IOUT VSENSE = VSENSEH VSENSE = VSENSEH

Hi-Z

PowerSSO-16

Channel diagnostic ISENSE = 1/K * IOUT VSENSE = VSENSEH VSENSE = VSENSEH

Hi-Z

Channel diagnostic ISENSE = 1/K * IOUT VSENSE = VSENSEH VSENSE = VSENSEH

Hi-Z

TCHIP Sense

VSENSE = VSENSE_TC

VCC Sense

VSENSE = VSENSE_VCC

1. In case the output channel corresponding to the selected MUX channel is latched off while the relevant input is low,

Multisense pin delivers feedback according to OFF-State diagnostic. Example 1: FR = 1; IN = 0; OUT = L (latched); MUX

channel = channel 0 diagnostic; Mutisense = 0. Example 2: FR = 1; IN = 0; OUT = latched, VOUT > VOL; MUX channel =

channel 0 diagnostic; Mutisense = VSENSEH

2.4

Waveforms

Figure 10. Latch functionality - behavior in hard short-circuit condition (TAMB << TTSD)

Logic

high

Input

t > tlatchRST

Fault Reset

Multisense

voltage

Output

Voltage

Output

current

Sense

enable

Logic

high

Logic

high

Junction temperature << TTDS

60°

Logic

high

Hard

short

circuit

Internal

Δ Tj

fault

detection

VsenseH

IlimH

Vout<5V

GADG1703171451PS

VN7140AJ, VN7140AS

Waveforms

DS10830 - Rev 4

page 16/45

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