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TP4055 Li-ion Battery Charger IC – SOT23-5 Package, Single Cell, High Efficiency

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Product SKU: INTEG344

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₹ 49 ~~₹ 79~~

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Specification

Description

TP4055 Li-ion Battery Charger IC – SOT23-5 Package, Single Cell, High Efficiency:

The TP4055 Li-ion Battery Charger IC is a high-efficiency linear charging solution designed for single-cell lithium-ion batteries. Housed in a compact SOT23-5 package, it offers a complete charging system with constant-current/constant-voltage operation and built-in thermal regulation.

Technical Details

Model: TP4055
Input Voltage: 4V to 8V (recommended for USB applications)
Charge Voltage: 4.2V ±1% preset
Charge Current: Up to 1000mA (programmable via external resistor)
Charging Method: Trickle → Constant Current (CC) → Constant Voltage (CV)
Termination Current: C/10
Recharge Threshold: 4.05V (typical)
Shutdown Supply Current: 45μA (typical)
Thermal Protection: Yes, with internal thermal regulation
Package Type: SOT23-5

Features

Maximizes charge rate without risk of overheating
Optimized for single-cell lithium-ion and lithium titanate batteries
Supports trickle, constant-current, and constant-voltage charging
Charges directly from USB port – no external MOSFET, sense resistor, or blocking diode required
Preset charge voltage with ±1% accuracy and automatic recharge
Charge status output with one dedicated status pin
C/10 charge termination for safe and reliable full charge
Low 45μA supply current in shutdown mode
Compact 5-lead SOT-23 package for space-constrained designs

Applications

USB Li-ion Battery Chargers: Enables 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.