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T63H0001A Schematic ( PDF Datasheet ) - Taiwan Memory Technology

Teilenummer T63H0001A
Beschreibung Li-Ion Battery Protector
Hersteller Taiwan Memory Technology
Logo Taiwan Memory Technology Logo 




Gesamt 7 Seiten
T63H0001A Datasheet, Funktion
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






T63H0001A Datasheet, Funktion
tm TE
CH
T63H0001A
Nch-MOS-FET are in “ON” state.
When VM 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
VM pin voltage higher than Vshort makes the
short circuit protector enabled. As a result the
www.DataSheete4xUt.ceormnal discharge control Nch-MOS-FET turns
to “OFF” with Dout pin being at “L”.
An output delay time for the excess current
detector is internally fixed, about 13ms TYP. At
VDD=3V. A quick recovery of VM 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 5us TYP.
The VM pin has a built-in pull down resistor,
TYP. 100K Ohm, connected to the VSS pin.
After an excess current or a 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 VM 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
T63H0001A does not enter a standby mode,
while VDD voltage is lower than Vdet2 the
T63H0001A enters a standby mode. After
detecting short circuit the T63H0001A will not
enter a standby mode.
Application Circuits
C2
0.1uF
R1=100Ohm
5 VDD
C3
0.01uf
2 Ct T63H0001A
3 VSS
4
Dout
1
Cout
6 VM
C2 0.1uF
R2
1K
TM Technology Inc. reserves the right
P. 6
to change products or specifications without notice.
Publication Date:MAR. 2004
Revision:A

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