MAX4072ATA(2003) 查看數據表（PDF） - Maxim Integrated

零件编号

产品描述 (功能)

生产厂家

MAX4072ATA
(Rev.:2003)

Bidirectional, High-Side, Current-Sense Amplifiers with Reference

Maxim Integrated 

Bidirectional, High-Side, Current-Sense

Amplifiers with Reference

Pin Description

MAX4069

1

2

3

4

5

6

7

8

9

10

—

PIN

MAX4070/

MAX4071

1

2

3

—

4

—

5

6

7

8

—

NAME

MAX4072

FUNCTION

1

SHDN Shutdown Input. Drive SHDN low to select shutdown mode. Connect SHDN

to VCC for normal operation.

2

RS- Negative Connection to the External Sense Resistor

3

RS+ Positive Connection to the External Sense Resistor

—

N.C. No Connection. Not internally connected.

4

GND

Ground. For thin QFN packages, also make an external connection from

GND to the under-side exposed paddle.

—

ADJ

Adjustable Output Voltage Feedback Input. Connect a resistor-divider

between REFOUT, ADJ, and GND (MAX4069 only, see Functional Diagram).

—

REFOUT Reference Output Voltage (MAX4069/MAX4070/MAX4071)

Voltage Output. The difference voltage, VOUT - VREF, is proportional to

6

OUT the voltage difference between RS+ and RS- and indicates the correct

polarity.

7

VCC Supply Voltage Input. Bypass VCC to GND with a 0.1µF capacitor.

8

GSEL

Gain-Setting Input. Connect GSEL low to select gain = 50V/V, or connect

GSEL high to select gain = 100V/V.

5

REFIN Reference Input Voltage (MAX4072)

LOAD

FROM BATTERY

CHARGER

RSENSE

GAIN SELECT

SHUTDOWN

Functional Diagram

2.7V TO 24V

VCC

RS+

CSA

RS-

MAX4069

OUT TO ADC

GSEL

SHDN

VREF

1.23V

OA

REFOUT

R1

ADJ

GND

R2

_______________________________________________________________________________________ 9

Share Link: