Outline
The MM3734 series are voltage monitor ICs for rechargeable lithium-ion or lithium-polymer batteries secondary protection, using a high voltage CMOS process. 1-cell lithium-ion or lithium-polymer battery can be detected overcharge state. Internal circuit is composed of voltage detectors, reference voltage sources, an oscillator, a counter circuit and logical circuits.
Product Series
For 1 cell secondary protection
Features
1) High-accuracy detection voltage
●Detection voltage 4.0V to 4.5V, 5mV steps Accuracy±20mV,
●Hysteresis voltage 0V to 1.0V, 50mV steps
However, "Detection voltage-Hysteresis voltage<4.0V" is disabled.
2) Range of Detection delay time
●Detection delay time Selectable from 0.25s, 1.02s, 2.048s, 4.096s
3) Low current consumption
●Normal mode Typ. 1.5µA, Max. 3.0µA
●Stand-by mode Max. 0.8µA
Specifications
| Product name |
Package | Overcharge detection voltage [V] |
Overcharge release voltage [V] |
Overcharge detection delay time [s] |
Overcharge release delay time [ms] |
|---|
