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PDF T63H0001A Data sheet ( Hoja de datos )
| Número de pieza | T63H0001A | |
| Descripción | Li-Ion Battery Protector | |
| Fabricantes | Taiwan Memory Technology | |
| Logotipo |  |
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tm TE
CH
T63H0001A
T63H0001A
Li-Ion Battery Protector
Features
Low supply current
Supply current
TYP. 5.0uA
www.DataSheet4U.com
High withstand voltage
Standby current (after detecting over-discharge) TYP. 0.3uA
Absolute maximum ratings
20V(VDD-VM)
High accuracy detector
Over-charge detector
+/- 25mV
Threshold
Over-discharge detector
+/- 2.5%
Variety of detector threshold Over-charge detector threshold
4.0V to 4.4V
Over-discharge detector threshold
2.4V to 3.0V
Built in protection circuit
Output delay of over charge
Excess current trip/Short circuit protector
Time delay at C3=0.01uF & VDD=4.3V
170Msnote1
note1: The result was measured from T63H0001A-AX.
Part Number Examples
Part No.
Over charge detection
voltage
Over charge release
voltage
marking
T63H0001A-AX
4.25V
4.05V
001A
T63H0001A-BX
4.35V
4.15V
001B
T63H0001A-CX
4.30V
4.10V
001C
…*note1
….
….
note1: New model version and specific characteristics may be order by customer.
Pack type
SOT-23-6
SOT-23-6
SOT-23-6
….
General Description
The T63H0001A series are protection ICs for
over-charge/discharge of rechargeable one-cell
Lithium-ion (Li+) batteries by CMOS process.
The T63H0001A series can detect
over-charge/discharge of Li+ one-cell and
excess load current, further include a short
circuit protector for preventing large external
short circuit current.
Each of these ICs is composed of three voltage
detectors, a reference unit, a hysteresis circuit,
and a short circuit protector. When charging
voltage crosses the detector threshold from a
low value to a value higher than Vdet1, the
output of Cout pin, the output of over-charge
detector/VD1, switches to low level. …
charger’s negative pin level. After detecting
over-charge the VD1 can be reset and the output
of Cout pin becomes “H” when the VDD
voltage is coming down to a level lower than
“Vdet1-Vhys1”, or when a charger is
disconnected from the battery pack while the
TM Technology Inc. reserves the right
P. 1
to change products or specifications without notice.
Publication Date: MAR. 2004
Revision:A
1 page  
tm TE
CH
T63H0001A
which enables charge control Nch-MOS-FET
“OFF” of charge control Nch-MOS-FET.
for turning to “OFF”. Though the VDD voltage A level shifter incorporated in a buffer driver for
would be going up to a higher level than Vdet1 if the Cout pin makes the “L” of Cout pin to the
it is within a time period of the output delay time, VM pin voltage and the “H” of Cout pin is set to
VD1 would not be output a signal for turning
VDD voltage with CMOS buffer.
Reset conditions from overcharging
There can be two cases to reset the VD1 making
www.DataSheett4hUe.cComout pin level to “H” again after detecting
the VDD level is within hysteresis width
(Vdet1-Vhys1<=VDD<Vdet1)
overcharge. Resetting the VD1 makes the
After detecting over-charge with the VDD
charging system ready for resumption of
voltage of higher than Vdet1, connecting system
charging process.
load to the battery pack makes load current
The first case is in such condition that a time
allowable through parasitic diode of external
when the VDD voltage is coming down to a
charge control Nch-MOS-FET. The Cout level
level lower than “Vdet1-Vhys1”. While in the
would be “H” when the VDD level is coming
second case, disconnecting a charger from the
down to a level below the Vdet1 by continuous
battery pack can make the VD1 resetting when drawing of load current.
VD2/Over-Discharge Detector
The VD2 monitors a VDD pin voltage. When
pack. When the VDD voltage stays under
the VDD voltage crosses the over-discharge
over-discharge detector threshold Vdet2 charge
detector threshold Vdet2 from a high value to a current can flow through parasitic diode of
value lower than the Vdet2, the VD2 can sense external control Nch-MOS-FET, then after the
an over-discharging and the external discharge VDD voltages comes up to a value larger than
control Nch-MOS-FET turns to “OFF” with
Vdet2 discharging process would be advanced
Dout pin being at “L”.
through “ON” state discharge control
Resetting the VD2 with the Dout pin level being Nch-MOS-FET. Connecting a charger to the
“H” again after detecting over-discharge is only battery pack makes the Dout level being “H”
possible by connecting a charger to the battery instantaneously when the
VDD voltage is higher than Vdet2.
Nch-MOS-FET.
An output delay time for the over-discharge
After detection of an over-discharge by VD2,
detection is fixed internally. Through the VDD supply current would be reduced to 0.3uA TYP.
voltage would be going down to a lower level
At VDD=2V and into standby, only the charger
than Vdet2 if it is within a time period of the
detector is operating.
output delay time, VD2 would not output a
The output type of Dout pin is CMOS having
signal for turning “OFF” of discharge control
“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
TM Technology Inc. reserves the right
P. 5
to change products or specifications without notice.
Publication Date:MAR. 2004
Revision:A
5 Page | ||
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| PDF Descargar | [ Datasheet T63H0001A.PDF ] | |
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