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
Accuracy±20mV
Accuracy±25mV (Topr=-5 to +60℃)
Accuracy±30mV
・ Overcharge release voltage
・ Overdischarge detection voltage
・ Overdischarge release voltage
3.9V to 4.5V, 50mV steps
2.0V to 3.0V, 50mV steps
2.0V to 3.5V, 50mV steps
Accuracy±35mV
Accuracy±100mV
Accuracy±10mV
・ Discharging overcurrent detection voltage +50mV to +300mV, 5mV steps
・ Charging overcurrent detection voltage
・ Short detection voltage
-50mV to -300mV, 5mV steps
0.5V fixed
Accuracy±20mV
Accuracy±100mV
2) Range of detection delay time
・ Overcharge detection delay time
・ Overdischarge detection delay time
Selection from 143ms, 573ms, 1.2s
Selection from 38ms, 150ms, 300ms
・ Discharging overcurrent detection delay time Selection from 4.5ms, 9ms, 18ms
・ Charging overcurrent detection delay time
・ Short detection delay time
Selection from 4.5ms, 9ms, 18ms
Selection from 300us, 400us
3) 0V battery charge function
4) Low current consumption
Selection from "Prohibition" or "Permission"
・ Normal mode
Typ. 3.0uA, Max. 5.5uA
・ Stand-by mode
Max. 0.1uA
5) Absolute maximum ratings
・ VDD pin
VSS-0.3V to 12V
・ COUT pin and V- pin
・ DOUT pin
VDD-28V to VDD+0.3V
VSS-0.3V to VDD+0.3V
-55 to +125℃
・ Storage temperature
・ Operation temperature
-40 to +85℃
6) Package type
・ SSON-6J
1.40 × 1.40 × 0.55(mm)
1.60 × 2.00 × 0.60(mm)
・ SON-6C
E-CMOS Corp. (www.ecmos.com.tw)
Page 1 of 7
4C12N-Rev.P001