TCS9921
One Cell Li-ion and Li-poly Battery Protection IC
产品描述
The TCS9921 is a high integration solution for lithium-ion/polymer battery protection. TCS9921 contains internal power MOSFET, high-accuracy voltage detection circuits and delay circuits. TCS9921has all the protection functions required in the battery application including overcharging, over discharging, overcurrent and load short circuiting protection etc. The accurate overcharging detection voltage ensures safe and full utilization charging. The low standby current drains little current from the cell while in storage. The device is not only targeted for digital cellular phones, but also for any other Li-Ion and Li-Poly battery-powered information appliances requiring long
-term battery life.
The TCS9921 requires a minimal number of readily available, external components and is available in a space saving
SOT23-5 package.
主要特点
- Protection of Charger Reverse Connection
- Protection of Battery Cell Reverse Connection
- Over-temperature Protection
- Overcharge Current Protection
- Two-step Overcurrent Detection:
- Over Discharge Current
- Load Short Circuiting
- Charger Detection Function
- 0V Battery Charging Function
- RoHS Compliant and Lead (Pb) Free
- 40mΩ Low RSS(ON) Internal Power MOSFET
- Delay Times are generated inside
- High-accuracy Voltage Detection
- Low Current Consumption
- Operation Mode: 2.5μA typ.
- Power-down Mode: 1.5μA typ.
- Only One External Capacitor Required
- Available in SOT23-5 Package
- -40°C to +85°C Temperature Range
典型应用图
订购资讯
| Part Number | Model | Description | Package | T/R Qty |
|---|---|---|---|---|
| 70702030 | TCS9921-E | TCs9921 0ne Cell Li-ion and Li-polyBattery Protection IC.3A.SOT23-5 | SOT23-5 | 3000 PCS |
