The SGM41012 family are battery protection ICs for Li-Ion/polymer rechargeable batteries, including the high-accuracy voltage detection circuits and the delay circuits. The device is designed to protect 1-cell Li-Ion/ polymer rechargeable battery pack against over- charge, over-discharge and over-current.
The SGM41012 uses an external over-current detection resistor to achieve high-accuracy over- current protection with less effect from temperature change.
The SGM41012 is available in Green XTDFN- 1.4×1.4-6L and UTDFN-1.4×1.8-6L packages. It can operate in the -40℃ to +85℃ ambient temperature range.
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特性
- High-Accuracy Voltage Detection Circuit
- Over-Charge Detection Voltage: 4.1V to 5.0V (5mV Step), Accuracy: ±15mV
- Over-Charge Hysteresis Voltage: 150mV or 200mV, Accuracy: ±40mV
- Over-Discharge Detection Voltage: 2.35V to 2.8V (50mV Step), Accuracy: ±35mV
- Over-Discharge Hysteresis Voltage: 250mV or 300mV, Accuracy: ±35mV
- Discharge Over-Current Detection Voltage 1: 3mV to 55mV (0.25mV Step), Accuracy: ±0.75mV
- Discharge Over-Current Detection Voltage 2: 6mV to 55mV (0.5mV Step), Accuracy: ±2mV
- Load Short-Circuiting Detection Voltage: 20mV to 100mV (1mV Step), Accuracy: ±4mV
- Charge Over-Current Detection Voltage: -55mV to -3mV (0.25mV Step), Accuracy: ±0.75mV
- Detection Delay Times are Generated Only by an Internal Circuit (No External Capacitors Required)
- Discharge Over-Current Control Function
- Low Voltage Battery Charge Permission Voltage: 0V, 0.9V, 1.2V, 1.5V
- Output Available during Power-On
- High-Withstand Voltage
- VM and CO Pins: Absolute Maximum Rating -28V
- Operating Temperature Range: -40℃ to +85℃
- Low Current Consumption
- During Operation: 2.1μA (TYP) (TJ = +25℃)
- After Over-Discharge: 0.35μA (TYP) (TJ = +25℃)
- Available in Green XTDFN-1.4×1.4-6L and UTDFN-1.4×1.8-6L Packages
アプリケーション
Li-Ion Rechargeable Battery Pack
Lithium Polymer Rechargeable Battery Pack
