JTDDW03

The DW03 integrates a high-precision voltage detection circuit and delay circuit, providing a highly integrated protection solution for single-cell lithium-ion/lithium-polymer rechargeable battery packs. The DW03 incorporates on-chip advanced low-impedance power MOSFETs, a high-precision voltage detection circuit, and a delay circuit. The DW03 features all necessary battery protection functions, including overcharge voltage, over-discharge voltage, charge overcurrent, discharge overcurrent, and short-circuit protection, while operating at very low power consumption. The DW03 monitors battery voltage and current, protecting single-cell rechargeable lithium batteries from damage caused by overcharge voltage, over-discharge voltage, charge overcurrent, discharge overcurrent, and short-circuit conditions by disconnecting the charger or load. The peripheral circuit is simple. The MOSFET is built-in with a typical equivalent resistance of 48mΩ.

Applications

• Single-cell Li-ion rechargeable battery
• Single-cell LiPo rechargeable battery

Key features

• Charger reverse polarity protection, battery reverse polarity protection
• Chip over-temperature protection
• Battery over-temperature protection
• Charger detection
• Over-charge current protection
• Over-discharge latch-off function
• Three-level overcurrent detection: 1. Discharge overcurrent 1 2. Discharge overcurrent 2 3. Load short-circuit protection
• Internal integrated equivalent 48mΩ advanced power MOSFET
• Low quiescent current: Normal operation: 1.5μA, Typical latch-off mode: 0.3μA
• 0V battery charging capability
• ESD: HBM = 4kV
• Package: SOT23-5