MAX17043 查看數據表（PDF） - Maxim Integrated

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MAX17043

1-Cell/2-Cell Fuel Gauge with ModelGauge and Low-Battery Alert

Maxim Integrated 

MAX17043/MAX17044

Pin Configurations

TOP VIEW

SDA SCL QSTRT ALRT

8765

MAX17043

MAX17044

+

1 234

CTG CELL VDD GND

TDFN

(2mm x 3mm)

1-Cell/2-Cell Fuel Gauge with

ModelGauge and Low-Battery Alert

TOP VIEW

(BUMPS ON BOTTOM)

MAX17043

MAX17044

1

2

3

+

A SDA

SCL

CTG

B QSTRT

N.C.

CELL

C ALRT

VDD

GND

UCSP

Pin Description

PIN

UCSP TDFN

NAME

A1

8

SDA

A2

7

SCL

A3

1

CTG

B1

6

QSTRT

B2

N.C.

B3

2

CELL

C1

5

ALRT

C2

3

C3

4

—

—

VDD

GND

EP

FUNCTION

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

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

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.

Connect to Ground. Connect to VSS during normal operation.

Quick-Start Input. Allows reset of the device through hardware. Connect to GND if not used.

No connect. Do not connect.

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

Alert Output. Active-low interrupt signaling low state of charge. Connect to interrupt input of the

system microprocessor.

Power-Supply Input. 2.5V to 4.5V input range. Connect to system power through a decoupling

network. Connect a 10nF typical decoupling capacitor close to pin.

Ground. Connect to the negative power rail of the system.

Exposed Pad (TDFN only). Connect to ground.

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