Description

The S-8211CAE-M5T1G is a protection IC designed for single-cell lithium-ion / lithium polymer rechargeable batteries. It features high-accuracy voltage detectors and delay circuits, making it suitable for protecting battery packs from overcharge, overdischarge, and overcurrent.

Specifications and features

- High-accuracy voltage detection circuit

- Overcharge detection voltage ranging from 3.9V to 4.4V (in 5mV steps) with an accuracy of ±25mV (+25°C) and ±30mV (-5 to +55°C)

- Overdischarge detection voltage ranging from 2.0V to 3.0V (in 10mV steps) with an accuracy of ±50mV

- Discharge overcurrent detection voltage ranging from 0.05V to 0.30V (in 10mV steps) with an accuracy of ±15mV

- Load short-circuiting detection voltage of 0.5V (fixed) with an accuracy of ±200mV

- Charge overcurrent detection voltage of -0.1V (fixed) with an accuracy of ±30mV

- Detection delay times are generated internally, eliminating the need for external capacitors (accuracy ±20%)

- Withstanding voltage device used for charger connection pins (VM pin and CO pin) with an absolute maximum rating of 28V

- Selectable 0V battery charge function

- Wide operating temperature range of -40 to +85°C

- Low current consumption: operation mode of 3.0µA typ., 5.5µA max. (+25°C) and power-down mode of 0.2µA max. (+25°C)

- Small package options: SOT-23-5 and SNT-6A

- Lead-free product

Application Scenarios

- Lithium-ion rechargeable battery packs

- Lithium polymer rechargeable battery packs

Comparison

The S-8211CAE-M5T1G offers the following advantages:

- High accuracy in voltage detection

- Internal circuit for detection delay times, eliminating the need for external capacitors

- Wide operating temperature range of -40 to +85°C

- Low current consumption

- Small package options for space-saving

However, there are also some disadvantages to consider:

- Limited to single-cell lithium-ion / lithium polymer rechargeable batteries

- Specific voltage detection ranges and accuracies may not suit all applications