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℃）
－ Overcharge release voltage 3.9V to 4.5V, 50mV steps Accuracy±30mV
－ Overdischarge detection voltage 2.0V to 3.0V, 50mV steps Accuracy±35mV
－ Overdischarge release voltage 2.0V to 3.5V, 50mV steps Accuracy±100mV
－ Discharging overcurrent detection voltage +50mV to +300mV, 5mV steps Accuracy±10mV
－ Charging overcurrent detection voltage -50mV to -300mV, 5mV steps Accuracy±20mV
－ Short detection voltage 0.5V fixed 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 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 VDD-28V to VDD+0.3V
－ DOUT pin VSS-0.3V to VDD+0.3V
－ Storage temperature -55 to +125℃
－ Operation temperature -40 to +85℃
6) Package type
－ SSON-6J 1.40 × 1.40 × 0.55（mm）
－ SON-6C 1.60 × 2.00 × 0.60（mm）