
TE
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“VREL1” in the T63H0002A. 
The output of Dout pin, the output of 
over-discharge detector/VD2, switches to low 
level after internally fixed delay time passed, 
when discharging voltage crosses the detector 
threshold from a high value lower than VDET2. 
After T63H0002A detect the over-discharge 
voltage, connect a charger to the battery pack, 
and when the battery supply voltage becomes 
higher than the over-discharge detector 
threshold, VD2 is released and the voltage of 
Dout becomes “H” level.  
An excess load current can be sensed and 
cut off after internally fixed delay time passed 
through the built in excess current detector, VD3 
                                                                    T63H0002A
TM Technology Inc. reserves the right
P. 2                                 
Publication Date: JUL. 2002 
to change products or specifications without notice.                                                                 Revision:A
with Dout being enabled to low level. Once after 
detecting excess current, the VD3 is released 
and Dout level switches to high by detaching a 
battery pack from a load system. 
Further, short circuit protector makes Dout 
level to low immediately with external short 
circuit current and re-moving external short 
circuit leads Dout level to high. After detecting 
over-discharge, supply current will be kept 
extremely low by halt some internal circuits 
operation. The output delay of over-charge 
detectors can be set by connecting external 
capacitors. Output type of Cout and Dout are 
CMOS. 6-pin, SOT23-6 is available. 
BLOCK DIAGRAM