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UB264AG-AC-P08-R датащи(PDF) 7 Page - Unisonic Technologies

номер детали UB264AG-AC-P08-R
подробное описание детали  LION BATTERY PROTECTION IC FOR 2-SERIAL, 3-SERIAL
PDF  11 Pages
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производитель  UTC [Unisonic Technologies]
домашняя страница  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

UB264AG-AC-P08-R датащи(HTML) 7 Page - Unisonic Technologies

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UB264A
Preliminary
CMOS IC
UNISONICTECHNOLOGIESCO.,LTD
7 of 11
www.unisonic.com.tw
QW-R502-832.b
OPERATING(Cont.)
4. Test Mode
In the UTC UB264A Series, the overcharge detection delay time (tCU) can be shortened by entering the test mode.
The test mode can be set by retaining the VDD pin voltage 8.5 V or more higher than the SENSE pin voltage for at
least 80ms (V1=V2=V3=V4=3.5V, Ta=25°C). The status is retained by the internal latch and the test mode is
retained even if the VDD pin voltage is decreased to the same voltage as that of the SENSE pin. When CO becomes
“H” when the delay time has elapsed after overcharge detection, the latch for retaining the test mode is reset and the
UTC UB264A Series exits from the test mode.
tCU/64
CO Pin
Test mode
Battery voltage
(n=1 to 4)
VCUn
VHCn
Pin voltage
>8.5V
tTST
tCL
SENSE pin voltage
VDD pin voltage
Notes:
1.
When the VDD pin voltage is decreased to lower than the UVLO voltage of 2 V (Typ.), the UTC
UB264A Series returns to the normal mode.
2.
Set the test mode when no batteries are overcharged.
3.
The overcharge release delay time (tCL) is not shortened in the test mode.
4.
The overcharge timer reset delay time (tTR) is not shortened in the test mode.



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