TP4065 Li-ion Battery Charging IC – SOT23-5, Ideal for Portable Devices, Single Cell
18650 and Single-Cell Battery Packs: Ideal for charging standard 3.7V Li-ion cells like 18650, commonly used in flashlights, vapes, and battery banks.
Wearable Electronics: Compact SOT23-5 package makes it suitable for space-constrained wearable designs such as fitness trackers and smart bands.
Portable Gadgets and Tools: Used in handheld devices like electric screwdrivers, remote controls, or toys requiring safe and efficient charging circuits.
TP4065 Li-ion Battery Charging IC – SOT23-5, Ideal for Portable Devices, Single Cell
Available:Out of Stock
- Product SKU: INTEG346
₹ 6
₹ 9

Specification
Description
TP4065 Li-ion Battery Charging IC – SOT23-5, Ideal for Portable Devices, Single Cell:
The TP4065 Li-ion Battery Charging IC is a compact and high-efficiency solution designed for charging single-cell 3.7V Li-ion or Li-Po batteries. Packaged in a space-saving SOT23-5, it supports USB-powered charging, making it ideal for portable electronics and space-constrained designs.Technical Details
- Model: TP4065
- Package: SOT23-5
- Battery Support: Single-cell 3.7V Li-ion/Li-Po
- Input Voltage: 4V to 8V (USB-compatible)
- Charge Voltage: 4.2V ±1%
- Charge Current: Up to 1000mA (adjustable via resistor)
- Shutdown Current: < 10μA
- Recharge Threshold: ~4.05V
- Charge Termination: C/10
- Thermal Protection: Built-in thermal regulation
Features
- Supports single-cell 3.7V Li-ion/Li-Po batteries
- Up to 1A programmable charge current
- Constant-current/constant-voltage (CC/CV) charging mode
- Automatic recharge function
- Built-in thermal regulation prevents overheating
- Trickle charging for deeply discharged batteries
- C/10 charge termination for safety
- Charge status indication via output pin
- Reverse battery protection
- Compact 5-pin SOT23-5 package
Applications
USB Li-ion Battery Chargers: Enable direct charging of single-cell batteries from USB ports without the need for external protection circuitry.18650 and Single-Cell Battery Packs: Ideal for charging standard 3.7V Li-ion cells like 18650, commonly used in flashlights, vapes, and battery banks.
Wearable Electronics: Compact SOT23-5 package makes it suitable for space-constrained wearable designs such as fitness trackers and smart bands.
Portable Gadgets and Tools: Used in handheld devices like electric screwdrivers, remote controls, or toys requiring safe and efficient charging circuits.
Physical Attributes
- Dimensions: ~2.0mm × 2.1mm × 1.0mm(L x W x H)
- Weight: ~0.05g
Package Includes
- 1 x TP4065 Li-ion Battery Charging IC – SOT23-5, Ideal for Portable Devices, Single Cell