EUP9261
(9) Measurement Condition 9, Measurement Circuit 5
<Overcharge detection delay time, Overdischarge
detection delay time.>
Set V1=3.5V and V2=0V. Increase V2 from 0V to 1.6V
momentarily (within 10µs). The time needed for VDO to go
“L” is the load short-circuiting detection delay time
(tSHORT).
The overcharge detection delay time (tCU) is the time
needed for VCO to change from “H” to “L” just after the V1
rapid increase within 10 µs from the overcharge detection
voltage (VCU) - 0.2V to the overcharge detection voltage
(VCU) + 0.2V in the condition V2=0V. The overdischarge
detection delay time (tDL) is the time needed for VDO to
change from “H” to “L” just after the V1 rapid decrease
within 10µs from the overdischarge detection voltage
(VDL)+0.2V to the overdischarge detection voltage (VDL) .
0.2V in the condition V2=0V.
Set V1=3.5V and V2=0V. Decrease V2 from 0V to 1.1V
momentarily (within 10µs). The time needed for VCO to go
“L” is the abnormal charge current detection delay time.
The abnormal charge current detection delay time has
the same value as the overcharge detection delay time.
(11) Measurement Condition 11, Measurement Circuit 2
(Product with 0V battery charge function)
<0V battery charge starting charge voltage>
Set V1=V2=0V and decrease V2 gradually. The voltage
between VDD and VM when VCO goes ”H” (VVM+0.1V or
higher) is the 0V battery charge starting charger voltage
(V0CHA).
(10) Measurement Condition 10, Measurement Circuit 5
<Overcurrent 1 detection delay time, Overcurrent 2
detection delay time , Load short – circuiting detection
delay time , Abnormal charge current detection delay
time. >
(12) Measurement Condition 12, Measurement Circuit 2
(Product with 0V battery charge inhibition function)
<0V battery charge inhibition battery voltage>
Set V1=3.5V and V2=0V. Increase V2 from 0V to 0.35 V
momentarily (within 10µs). The time needed for VDO to go
“L” is overcurrent 1 detection delay time (tIOV1).Set
V1=3.5V and V2=0V. Increase V2 from 0V to 0.7V
momentarily (within 10µs). The time needed for VDO to go
“L” is overcurrent 2 detection delay time (tIOV2).
Set V1=0V and V2=4V. Increase V1 gradually. The voltage
between VDD and VM when VCO goes ”H” (VVM+0.1V or
higher) is the 0V battery charge inhibition battery voltage
(V0INH).
DS9261 Ver2.4 Jan. 2007
12
EUTECH [ EUTECH MICROELECTRONICS INC ]
