The S-8243A/B series is an IC designed to protect lithium-ion rechargeable batteries. The series includes a high-precision battery protection circuit, battery monitor amplifier, and voltage regulator. It can protect lithium-ion battery packs with 3 or 4 series-connected cells from overcharging, overdischarging, and overcurrent. It also features high-precision voltage detection, short circuit protection, and the ability to control charging and discharging through control terminals.
This document describes the S-8243A/B series battery‑protection ICs designed for 3‑cell (A series) and 4‑cell (B series) lithium‑ion or lithium‑polymer battery packs. It explains how the IC prevents over‑charge, over‑discharge, and over‑current conditions and includes a built‑in voltage regulator for interfacing with micro‑controllers or battery‑management ICs.
The manual provides electrical characteristics, absolute maximum ratings, pin‑out diagrams, package information (16‑Pin TSSOP), and recommended delay‑time settings. Detailed tables list detection and release voltages, current limits, temperature ranges, and power consumption for both series variants. This manual is written in Chinese.
| Over‑charge detection voltage | 3.9 V ~ 4.4 V |
|---|---|
| Over‑charge release voltage | -0.10 V ~ -0.40 V |
| Over‑discharge detection voltage | 2.0 V ~ 3.0 V |
| Over‑discharge release voltage | 0.15 V ~ 0.70 V |
| Over‑current detection voltage 1 | 0.05 V ~ 0.30 V |
| Voltage regulator output | 3.3 V |
| Operating voltage range | 6 V ~ 18 V |
| Operating temperature range | -40 °C ~ +185 °C |
| Package type | 16‑Pin TSSOP |
It detects over‑charge between 3.9 V and 4.4 V.
They are supplied in a 16‑Pin TSSOP package.
The device operates from –40 °C up to +185 °C.