EC9526 Datasheet, PDF (1/7 Pages) E-CMOS Corporation – One-cell Li-ion/Li-polymer battery protection IC

One-cell Li-ion/Li-polymer
battery protection IC
EC9526
General Description
The EC9526 series are protection IC using high voltage CMOS process for overcharge, overdischarge and overcurrent
protection of the rechargeable Lithium-ion or Lithium-polymer battery. The overcharge, overdischarge , discharging
overcurrent , charging overcurrent , and short protection of the rechargeable one-cell Lithium-ion or Lithium-polymer battery
can be detected. Each of these IC composed of four voltage detectors, short detection circuit, reference voltage sources,
oscillator, counter circuit and logical circuits.
Features （Unless otherwise specified, Topr=+25℃）
1) Range and accuracy of detection/release voltage
・ Overcharge detection voltage
4.0V to 4.5V, 5mV steps
・ Overcharge release voltage
3.9V to 4.5V, 50mV steps
・ Overdischarge detection voltage
2.0V to 3.0V, 50mV steps
・ Overdischarge release voltage
2.0V to 3.5V, 50mV steps
・ Discharging overcurrent detection voltage +50mV to +300mV, 5mV steps
・ Charging overcurrent detection voltage -50mV to -300mV, 5mV steps
・ Short detection voltage
0.5V fixed
Accuracy±20mV
Accuracy±25mV （Topr=-5 to +60℃）
Accuracy±30mV
Accuracy±35mV
Accuracy±100mV
Accuracy±10mV
Accuracy±20mV
Accuracy±100mV
2) Range of detection delay time
・ Overcharge detection delay time
Selection from 143ms, 573ms, 1.2s
・ Overdischarge detection delay time
Selection from 38ms, 150ms, 300ms
・ Discharging overcurrent detection delay time Selection from 4.5ms, 9ms, 18ms
・ Charging overcurrent detection delay time Selection from 4.5ms, 9ms, 18ms
・ Short detection delay time
Selection from 300us, 400us
3) 0V battery charge function
Selection from "Prohibition" or "Permission"
4) Low current consumption
・ Normal mode
・ Stand-by mode
Typ. 3.0uA, Max. 5.5uA
Max. 0.1uA
5) Absolute maximum ratings
・ VDD pin
・ COUT pin and V- pin
・ DOUT pin
・ Storage temperature
・ Operation temperature
VSS-0.3V to 12V
VDD-28V to VDD+0.3V
VSS-0.3V to VDD+0.3V
-55 to +125℃
-40 to +85℃
6) Package type
・ SSON-6J
・ SON-6C
1.40 × 1.40 × 0.55（mm）
1.60 × 2.00 × 0.60（mm）
E-CMOS Corp. (www.ecmos.com.tw)
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4C12N-Rev.P001