Rainbow-electronics DS2784 Manual de usuario descargar pdf (Pagina 5)

DS2784: 1-Cell Stand-Alone Fuel Gauge IC with Li+ Protector and SHA-1 Authentication

TYPICAL OPERATING CIRCUIT

PIN DESCRIPTION

PIN NAME FUNCTION

1 V

Power-Supply Input. Chip supply input. Bypass with 0.1µF to V

2 CTG Connect to Ground

3 V

Device Ground. Chip ground and battery-side sense resistor input.

4 V

Battery Voltage-Sense Input. Connect to positive cell terminal through decoupling

network.

5, 9, 10 N.C. No Connection

6 PLS

Pack Plus Terminal-Sense Input. Used to detect the removal of short-circuit, discharge

overcurrent, and charge overcurrent conditions.

7 CC Charge Control. Charge FET control output.

8 DC Discharge Control. Discharge FET control output.

11 DQ

Data Input/Output. Serial data I/O, includes weak pulldown to detect battery disconnect

and can be configured as wake input.

12 SNS

Sense Resistor Connection. Pack minus terminal and pack-side sense resistor sense

input.

13 CP Charge Pump Output. Bypass with 0.1µF to V

14 PIO Programmable I/O Pin. Can be configured as wake input.

PAD PAD Exposed Pad. Connect to V

or float.

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1 2 3 4 5 6 7 8 9 10 ... 37 38

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Rainbow-electronics DS2784 Manual de usuario Pagina 5