English
Language : 

S-8243AACFT-TB-X Datasheet, PDF (13/35 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC
◁
Rev.3.1_00
BATTERY PROTECTION IC FOR 3-SERIAL OR 4-SERIAL CELL PACK
S-8243A/B Series
5. CTL1 pin current, overcharge detection delay time, overdischarge detection delay time, and
overcurrent detection delay time 1 (Test circuit 5)
Starting condition is V1 = V2 = V3 = V4 = 3.5 V and VMP = VDD.
Current that flows between the CTL1 pin and VSS is the CTL1 pin current ICTL1L.
The overcharge detection delay time tCU is a time needed for the COP pin voltage to change from “Low” to “High” just
after the V1 voltage is rapidly increased from 3.5 V to 4.5 V.
The overdischarge detection delay time tDL is a time needed for the DOP pin voltage to change from “Low” to “High” just
after the V1 voltage is rapidly decreased from 3.5 V to 1.5 V.
The overcurrent detection delay time 1 is a time needed for the DOP pin voltage to change from “Low” to “High” just after
the VMP pin voltage is decreased from VDD to VDD−0.35 V when V1 = 3.5 V.
6. Input voltages for CTL1 and CTL2 (Test circuit 6)
Starting condition is V1 = V2 = V3 = V4 = 3.5 V.
Pin voltages of the COP and the DOP should be “High” when VCTL1 = VCTL1H min. and CTL2 is OPEN.
Pin voltages of the COP and the DOP should be “Low” when VCTL1 = VCTL1L max. and CTL2 is OPEN.
Pin voltage of the COP is “High” and the pin voltage of the DOP is “Low” when VCTL1 = VCTL1L max. and VCTL2 = VCTL2H
min.
Pin voltage of the COP is “Low” and the pin voltage of the DOP is “High” when VCTL1 = VCTL1L max. and VCTL2 = VCTL2L
max.
7. 0 V battery charge starting charger voltage and 0 V battery charge inhibition battery voltage (Test
circuit 7)
One of the 0 V battery charge starting charger voltage and 0 V battery charge inhibition battery voltage is applied to each
product according to the 0 V battery charging function.
Starting condition is V1 = V2 = V3 = V4 = 0 V for a product in which 0 V battery charging is available.
The COP pin voltage should be lower than V0CHA max.−1 V when the VMP pin voltage VMP = V0CHA max.
Starting condition is V1 = V2 = V3 = V4 = V0INH for a product in which 0 V battery charging is inhibited.
The COP pin voltage should be higher than VMP−1 V when the VMP pin voltage VMP = 24 V.
13
 ▷