DW01A lithium battery protection SOT23-6

Description

DW01A lithium battery protection SOT23-6

The DW01A is a lithium-ion (Li-ion) battery protection IC, designed to protect single-cell Li-ion batteries from overcharge, over-discharge, and overcurrent conditions. It’s typically used in conjunction with an external MOSFET for current control.

Key Specifications for DW01A:

1. Overcharge Protection:
   • Overcharge Detection Voltage (V_DET1):
     • 4.3V ± 0.025V (typical)
   • Overcharge Release Voltage (V_REL1):
     • 4.1V ± 0.05V (typical)
   • Overcharge Delay Time:
     • 100ms to 400ms
2. Over-discharge Protection:
   • Over-discharge Detection Voltage (V_DET2):
     • 2.4V ± 0.1V (typical)
   • Over-discharge Release Voltage (V_REL2):
     • 3.0V ± 0.1V
   • Over-discharge Delay Time:
     • 100ms to 400ms
3. Overcurrent Protection:
   • Overcurrent Detection Voltage (V_IOCP):
     • 0.15V ± 0.02V
   • Overcurrent Delay Time:
     • 8ms to 20ms
   • Short Circuit Detection:
     • Triggered by the external MOSFET’s sense voltage.
4. Operating Voltage Range:
   • 1.5V to 8V
5. Quiescent Current:
   • 3µA (typical)
6. Standby Current:
   • 0.1µA (typical) in power-down mode.
7. Package:
   • SOT-23-6

Features:

• Overcharge protection: Prevents the battery from being charged beyond a safe voltage.
• Over-discharge protection: Prevents the battery from being discharged below a safe voltage.
• Overcurrent and short circuit protection: Limits the current to prevent damage to the battery and circuit.
• Low quiescent current: Ensures minimal power draw when idle, extending battery life.

The DW01A is widely used in battery management systems (BMS) for rechargeable Li-ion batteries, such as in power banks, smartphone batteries, and other portable electronics.