Outline
MM3280 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, short, charging overcurrent (optional), and over voltage charger (optional) 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.
Product Series
For one-cell
Features
1. Range and accuracy of detection/release voltage
●Overcharge detection voltage 3.6V to 5.0V, 5mV steps Accuracy±20mV
●Overcharge release voltage 3.6V 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 -300mV to -50mV, 5mV steps Accuracy±20mV
●Short detection voltage Selection from 0.7V, 0.8V, 0.9V Accuracy±100mV
●Over voltage charger detection voltage VDD-8.0V fixed Accuracy±2.0V
●Over voltage charger release voltage VDD-7.3V fixed Accuracy±2.0V
2. Range of detection delay time
●Overcharge detection delay time Selection from 0.25s, 1.0s, 1.2s, 4.5s
●Overdischarge detection delay time Selection from 20ms, 24ms, 96ms, 125ms, 128ms, 144ms
●Discharging overcurrent detection delay time Selection from 8ms, 12ms, 16ms, 20ms, 24ms, 48ms, 96ms, 160ms
●Charging overcurrent detection delay time Selection from 4ms, 6ms, 8ms, 10ms, 12ms, 16ms, 96ms
●Short detection delay time Selection from 200µs, 300µs, 400µs fixed
3. 0V battery charge functionSelection from "Prohibition" or "Permission"
4. The overcharge detection delay timer reset time function(function for the pulse charge)is provided.
5. Low current consumption
●Normal mode Typ. 3.0µA, Max. 6.0µA
●Stand-by mode Max. 0.1µA (For "Charger connection release" the overdischarge release condition.)
Max. 0.5µA (For "Voltage release" the overdischarge release condition.)
Specifications
| Product name |
Package | Pin No. | 0V battery charge function |
Overcharge release function | Overdischarge release function | Discharging overcurrent release function | Overcharge detection voltage [V] |
Overcharge release voltage [V] |
Overdischarge detection voltage [V] |
Overdischarge release voltage [V] |
Discharging overcurrent detection voltage [V] |
Charging overcurrent detection voltage [V] |
Short detection voltage [V] |
Overcharge detection delay time [s] |
Overcharge release delay time [ms] |
Overdischarge detection delay time [ms] |
Overdischarge release delay time [ms] |
Discharging overcurrent detection delay time [ms] |
Discharging overcurrent release delay time [ms] |
Charging overcurrent detection delay time [ms] |
Charging overcurrent release delay time [ms] |
Short detection delay time [ms] |
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