DW01A-JSM Lithium Battery Protection IC

DW01A-JSM Lithium Battery Protection IC – JSMSEMI

The DW01A is a single-cell lithium-ion/polymer battery protection IC designed to prevent damage and enhance the lifespan of rechargeable battery packs.

This IC is commonly used in applications such as power banks, drones, and portable electronics.

Key Features

• Overcharge Protection: Activates when battery voltage exceeds 4.3V (±50mV), with automatic release at 4.1V (±50mV).
• Overdischarge Protection: Triggers below 2.4V (±100mV), releasing at 3.0V (±100mV).
• Overcurrent Protection: Detects currents above 150mV (±30mV), with short-circuit detection at 1.35V.
• Ultra-Low Quiescent Current: Consumes just 3µA (typical) at VCC = 3.6V, extending battery shelf life.
• Integrated Delay Circuits: No external capacitors needed for delay timing.
• Charge from 0V Battery: Supports charging of deeply discharged cells.
• Operating Temperature: -40°C to +85°C.

Package & Pinout

• Package Type: SOT-23-6 (compact surface-mount).

• Pins:

  • OD: Discharge MOSFET gate control.
  • OC: Charge MOSFET gate control.
  • CS: Current sense and charger detection.
  • VCC: Power supply input.
  • GND: Ground.
  • NC: No connection (test pin).

Applications

• DIY lithium battery packs.
• Power banks and portable chargers.
• Drones and remote-controlled devices.
• Single-cell battery-powered electronics.