DS2745 Maxim Integrated Products, DS2745 Datasheet - Page 5

• Manufacturer Part Number: DS2745
• Description: Low-Cost I2C Battery Monitor
• Manufacturer: Maxim Integrated Products

PIN DESCRIPTION
Figure 2. BLOCK DIAGRAM
PIN
1
2
3
4
5
6
7
8
SYMBOL
CTG
SDA
SNS
SCL
PIO
V
V
VIN
DD
SS
Serial Clock Input. 2-Wire clock line. Input only. Connect this pin to the CLOCK
terminal of the battery pack. Pin has an internal pulldown (I
disconnection.
Serial Data Input/Output. 2-Wire data line. Open-drain output driver. Connect this pin
to the DATA terminal of the battery pack. Pin has an internal pulldown (I
disconnection.
General Purpose Input/Output. Open-drain output driver with input sense. Connect
to a pull up resistor for bidirectional operation.
Sense Resistor Connection. Connect to the negative terminal of the battery pack.
Connect the sense resistor between V
Device Ground. Connect to the negative terminal of the Li+ cell outside the cell
protection FETs. Connect the sense resistor between V
Connect to Ground. Connect to the negative terminal of the Li+ cell outside the cell
protection FETs.
Voltage Sense Input. The voltage of the Li+ cell is monitored through this input pin.
Power-Supply Input. Connect to the positive terminal of the Li+ cell through a
decoupling network.
5 of 15
FUNCTION
SS
and SNS.
DS2745 Low-Cost I
SS
and SNS.
PD
) for sensing
www.DataSheet4U.com
2
C Battery Monitor
PD
) for sensing