AP5056

The AP5056 is a compact, single-cell lithium-ion battery charging IC designed for portable devices. It features a linear charging circuit with constant current (CC) and constant voltage (CV) modes, supporting up to 1A charging current. Key specifications include:
- Input Voltage: 4.5V–6.5V (USB-compatible)
- Battery Voltage: 4.2V (adjustable for different cell types)
- Thermal Regulation: Prevents overheating
- Automatic Recharge: Initiates when battery voltage drops
- Low Quiescent Current: Minimizes power loss
The IC integrates protections like reverse polarity, overvoltage, and short-circuit prevention, ensuring safe operation. It requires minimal external components, making it cost-effective for space-constrained designs.
Common applications include wearables, Bluetooth devices, and small IoT gadgets. Its simplicity and reliability make it a popular choice for low-power, single-cell Li-ion/Li-Po battery charging.
For detailed usage, refer to the datasheet for pin configurations and application circuits.

The AP5056 is a lithium-ion battery charging IC. Equivalent alternatives include:
- TP4056 (common, widely available)
- MCP73831 (Microchip)
- BQ24075 (TI)
- LTC4054 (Analog Devices)
- CN3058 (Consonance)
These chips offer similar functionality (1A charging, linear control, and protection features). Check datasheets for exact specs and pin compatibility.

The AP5056 is a compact, efficient 500mA linear lithium-ion battery charger IC with the following key features:
- Input Voltage Range: 4.5V to 6.5V (supports USB power)
- Charging Current: Adjustable up to 500mA (default 500mA)
- Charge Termination: Auto-cutoff at 4.2V ±1% (for single-cell Li-ion)
- Low Power Consumption: 2.5µA leakage current when idle
- Protections: Overvoltage (OVP), reverse polarity, and thermal shutdown
- Precharge & Trickle Charge: Safely charges deeply discharged batteries
- Status Indication: LED output for charging/complete state
- Package: SOT23-5 (small footprint)
Ideal for portable devices, wearables, and low-power applications requiring simple, space-efficient charging.

The AP5056 typically comes in a SOP-8 (Small Outline Package with 8 pins) or ESOP-8 (Exposed Pad SOP-8) package. These compact surface-mount packages are suitable for battery charging ICs, offering efficient thermal dissipation (especially ESOP-8) and space-saving design. Exact package options may vary by manufacturer, so always check the datasheet for specifics.