TP3102 View Datasheet(PDF) - Topro

Part Name

Description

Manufacturer

TP3102

1Cell Li-ion Battery Protector IC

Topro 

TP3102

1Cell Li-ion Battery

Protector IC

● VD3/Excess Current Detector, Short Circuit Protector

• Both of the excess current detector and short circuit protector can work when both control

Nch-MOS-FETs are in “ON” state.

When the V- pin voltage is going up to a value between the short protection voltage Vshort and

excess current threshold VDET3, the excess current detector operates and further soaring of V- pin

voltage higher than Vshort makes the short circuit protector enabled. As a result the external

discharge control Nch-MOS-FET turns to “OFF” with the DOUT pin being at “L”.

• An output delay time for the excess current detector is internally fixed, 13ms TYP. at VDD=3.0V. A

quick recovery of V- pin level from a value between Vshort and VDET3 within the delay time keeps

the discharge control FET staying “ON” state.

When the short circuit protector is enabled, the DOUT would be "L" and its delay time would be 5µs

TYP.

• The V- pin has a built-in pull down resistor, TYP.100 kΩ, connected to the Vss pin.

After an excess current or short circuit protection is detected, removing a cause of excess current or

external short circuit makes an external discharge control Nch-MOS-FET to an "ON" state

automatically with the V- pin level being down to the Vss level through the built-in pull down

resistor.

• When VDD voltage is higher than VDET2 at a time when the excess current is detected the TP3102

does not enter a standby mode, while VDD voltage is lower than VDET2 the TP3102 enters a

standby mode.

After detecting short circuit the TP3102 will not enter a standby mode.

Print Page 8 of 13

表單編號 QW730101-05A

TOPRO CONFIDNETIAL

2003/7/28 Print

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