STLC5445 datasheet(5/23 Pages) STMICROELECTRONICS

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STLC5445

* Internal pull down to ground

*EREL3A

Logic input pin: relay 3A output driver’s ON/OFF (high = ON)

*ERL3B

Logic input pin: relay 3B output driver’s ON/OFF (high = ON)

REL3B

Output of the 3B relay driver

NACK2 (D2) Logic pin: with PSC = 0, Line 2 status information output

with PSC = 1, Line 2 I/O tristate data bus

NACK3 (D3) Logic pin: with PSC = 0 line 3 status information output

with PSC = 1 line 3 I/O tristate data bus

*RESETN

Logic input pin: reset (active low)

WA3

Output feeder’s switch side of line 3; negative respect toWB3

ILIM

Current limit programming input

WBP3

Internal protection diodes for line 3

WB3

Output feeder’s resistive side of line 3; positive respect to WA3

WB0

Output feeder’s resistive side of line 0; positive respect to WA0

WBP0

Internal protection diodes for line 0

WA0

Output feeder’s switch side of line 0; negative respect to WB0

VBAT

Negative battery supply voltage. It is referred to BGND

BGND

Battery ground

RGND

Relay ground

N°

Pin Name

Description

PIN FUNCTION (continued)

STLC5445 데이터시트(PDF) 5 Page - STMicroelectronics