DS2741N(2008) 查看數據表（PDF） - Maxim Integrated
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DS2741N Datasheet PDF : 9 Pages
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PIN
1–4
5
6
7
8
9
10
11–14
—
Current Monitor and Accumulator with
Integrated Sense Resistor
NAME
RS+
SDA
SCL
VCC
DNC
GND
SLP
RS-
EP
Pin Description
FUNCTION
Sense Resistor High Side. Connection to high side of internal 38m sense resistor. All RS+ pins
must be connected together.
Serial Data Input/Output. SDA is the input/output pin for the I2C serial interface. The SDA pin is an
open-drain output and requires an external pullup resistor.
Serial Clock Input. SCL is used to synchronize data movement on the I2C serial interface.
Supply Voltage. Power-supply input.
Do Not Connect
Ground
Sleep Input (Active Low). When taken low, the DS2741 is placed in a low-power sleep state where
all internal circuitry including the I2C bus is disabled. Toggling the SLP pin low and then back high
resets the device and the I2C bus logic.
Sense Resistor Low Side. Connection to low side of internal 38m sense resistor. All RS- pins
must be connected together.
Exposed Pad. Can be left floating.
SDA
I2C
SCL
INTERFACE
CURRENT REGISTER
CURRENT ACCUMULATOR
REGISTER
TEMPERATURE
REGISTER
GND
VCC
VOLTAGE
REFERENCE
10-BIT PLUS SIGN
A/D CONVERTER
38mΩ
Block Diagram
SLP
POWER
CONTOL
DS2741
RS+
RS-
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