IP2342 Lithium Battery Charger Management IC by Injoinic, 5V Input, Asynchronous Boost, Built-in Power MOSFET.

Ingenic IP2342 is an asynchronous boost charging management IC that supports 2-3 series lithium batteries/lithium iron phosphate batteries. It features built-in power MOSFETs, high efficiency, high integration, and comprehensive protection functions, making it suitable for applications such as smart home devices, power tools, and portable equipment.

Product Features
1. Support for Multiple Battery Series
Supports 2-3 series lithium batteries (4.2V/cell) or lithium iron phosphate batteries (3.65V/cell), suitable for 7.4V (2S), 11.1V (3S) lithium battery packs or 7.3V (2S), 10.95V (3S) lithium iron phosphate battery packs.
2. High-Efficiency Asynchronous Boost Architecture
The boost switching charger converter operates at 500kHz, with an input voltage of 5V/2A and an output voltage of 8V, achieving a conversion efficiency of up to 84%.
3. Flexible Charging Configuration
Supports setting the constant voltage charging voltage via an external resistor on the VSET pin.
Supports setting the input constant current charging current via an external resistor on the ISET pin.
Supports NTC temperature detection, automatically stopping charging at low or high temperatures.
4. Multiple Protection Functions
Input undervoltage protection, input overvoltage protection, IC overtemperature protection, and ESD 4kV protection.
5. Charging Status Indication
Supports LED charging status indication, enabling single-pin dual-light functionality.
6. Low Standby Power Consumption
Supports 0V battery trickle charging to prevent damage from over-discharge.
7. Packaging and Compatibility
Utilizes ESOP8 packaging, compact in size for easy integration.
Compatible with various adapters and supports adaptive adapter load capability.

Application Areas
Smart home devices: such as smart locks, robotic vacuum cleaners, smart cameras, etc.
Power tools: such as electric drills, angle grinders, chainsaws, etc.
Portable devices: such as portable speakers, power banks, Bluetooth devices, etc.
Other fields: such as medical equipment, industrial control, security devices, etc.

Advantages
High Integration: Built-in power MOSFETs reduce external components and lower BOM costs.
High Efficiency: 84% conversion efficiency minimizes energy loss.
Safety: Multiple protection functions ensure battery and device safety.
Flexibility: Supports various battery types and charging configurations to meet diverse application needs.
Ease of Use: LED charging status indication allows users to easily monitor charging progress.

Precautions
Input Voltage Range: Ensure the input voltage is around 5V to avoid overvoltage or undervoltage.
Battery Matching: Set appropriate charging parameters based on the battery type (lithium battery or lithium iron phosphate battery).
Thermal Design: Pay attention to heat dissipation during high-power charging to prevent chip overheating.
ESD Protection: The chip is sensitive to static electricity; ensure proper ESD protection during production and use.

Summary
Ingenic IP2342 is a high-performance, multifunctional asynchronous boost charging management IC suitable for charging management of 2-3 series lithium batteries/lithium iron phosphate batteries. Its high efficiency, high integration, and comprehensive protection functions make it an ideal choice for applications such as smart home devices and power tools.