DS2760 Dallas Semiconducotr, DS2760 Datasheet - Page 4

• Manufacturer Part Number: DS2760
• Description: High Precision Li-Ion Battery Monitor
• Manufacturer: Dallas Semiconducotr

DETAILED PIN DESCRIPTION – Table 1
SYMBOL
VDD
VSS
SNS
PLS
VIN
PIO
DQ
IS1
IS2
CC
DC
PS
DESCRIPTION
Charge Protection Control Output. Controls an external p-channel high-side charge
protection FET.
Discharge Protection Control Output. Controls an external p-channel high-side
discharge protection FET.
Data Input/Out. 1-Wire data line. Open-drain output driver. Connect this pin to the
DATA terminal of the battery pack. Pin has an internal 1 A pull-down for sensing
disconnection.
Programmable I/O Pin. Used to control and monitor user-defined external circuitry.
Open drain to VSS.
Battery Pack Positive Terminal Input. The device monitors the state of the battery
pack’s positive terminal through this pin in order to detect events such as the attachment
of a charger or the removal of a short circuit.
Power Switch Sense Input. The device wakes up from Sleep Mode when it senses the
closure of a switch to VSS on this pin. Pin has an internal 1 A pull-up.
Voltage Sense Input. The voltage of the Li-Ion cell is monitored via this input pin.
Power Supply Input. Connect to the positive terminal of the Li-Ion cell through a
decoupling network.
Device Ground. Connect directly to the negative terminal of the Li-Ion cell. For the
external sense resistor configuration, connect the sense resistor between VSS and SNS.
Sense Resistor Connection. Connect to the negative terminal of the battery pack. In the
internal sense resistor configuration, the sense resistor is connected between VSS and
SNS.
Current Sense Input. This pin is internally connected to VSS through a 4.7 k resistor.
Connect a 0.1 F capacitor between IS1 and IS2 to complete a low-pass input filter.
Current Sense Input. This pin is internally connected to SNS through a 4.7 k resistor.
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DS2760