DS2746 Просмотр технического описания (PDF) - Maxim Integrated

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DS2746

Low-Cost 2-Wire Battery Monitor with Ratiometric A/D Inputs

Maxim Integrated 

DS2746 Low-Cost 2-Wire Battery Monitor

PIN DESCRIPTION

PIN

NAME

FUNCTION

1

AIN1

Aux Voltage Input Number 1.

2

AIN0

Aux Voltage Input Number 0.

3

SCL

Serial Clock Input. Input only 2-wire clock line. Connect this pin to the CLOCK signal of

the 2-wire interface. This pin has a 0.2µA typical pulldown to sense disconnection.

Serial Data Input / Output. Open drain 2-wire data line. Connect this pin to the DATA

4

SDA

signal of the 2-wire interface. This pin has a 0.2µA typical pulldown to sense

disconnection.

5

SNS

Current-Sense Input. Connect to the handset side of the sense resistor.

6

7

8

9

10

PAD

VSS

CTG

VOUT

VIN

VDD

PAD

Device Ground. Connect to the battery side of the sense resistor.

Connect to Ground. Connect to the battery side of the sense resistor.

Voltage Out. Supply for Aux input voltage Measurement dividers. Connect to high side of

resistor divider circuits.

Battery Voltage Input. The voltage of the cell pack is measured through this pin.

Power-Supply Input. 2.5V to 5.5V input range. Connect to system power through a

decoupling network.

Exposed Pad. Connect to VSS.

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