TP3201 データシートの表示（PDF） - Topro

部品番号

コンポーネント説明

メーカー

TP3201

1cell Li-ion battery Protector IC

Topro 

TP3201

1cell Li-ion battery

Protector IC

• An output delay time for the over-discharge detection is fixed internally. Though the VDD voltage would be going down to a lower level than

VDET2 if it is within a time period of the output delay time, VD2 would not output a signal for turning “OFF” of discharge control

Nch-MOS-FET.

• After detection of an over-discharge by VD2, supply current would be reduced to 0.3 µATYP. at VDD=2.0V and into standby, only the charger

detector is operating.

• The output type of DOUT pin is CMOS having “H” level of VDD and “L” level of Vss.

● 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, 8ms TYP. at Vote=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 TP3201 does not enter a standby mode, while VDD

voltage is lower than VDET2 the TP3201 enters a standby mode.

After detecting short circuit the TP3201 will not enter a standby mode.

Page 8 of 12

TOPRO CONFIDNETIAL

2003/7/8 Print

Share Link: