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TECH PUBLIC TP4054S5-2 product image
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TECH PUBLIC TP4054S5-2RoHS

Manufacturer
TECH PUBLICAsian Brands
MPN
TP4054S5-2
LCSC Part #
C5342388
Packaging
SOT-23-5
Customer #
Key Attributes
Micro linear battery management chip
Datasheetpdf iconTECH PUBLIC TP4054S5-2
In-Stock: 210
210 In stock, ships now
Minimum: 10Multiple: 10Sales Unit: Piece
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QtyUnit PriceTotal Amount
10+$ 0.0307$ 0.31
100+$ 0.03$ 3.00
300+$ 0.0295$ 8.85
1,000+$ 0.0291$ 29.10
Standard Packaging3000/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Battery Management
ManufacturerTECH PUBLIC
PackagingSOT-23-5
Operating Temperature-20℃~+85℃
Interface-
Quiescent Current40uA
0V Battery ChargeNot supported
Type of BatteryLithium Battery
Operating Voltage4.2V~7.5V
FeaturesConstant current charging;Constant voltage charging;Trickle charging;Automatic recharge;Charge termination;Programmable charging current;Reverse current blocking;Soft-start;Under-voltage lockout
The Chip TypeCharging IC
Balance Current-
Charge Current - Max500mA
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Introduction

AI Translation

The TP4054 is a complete linear Li-ion battery charge management IC featuring a full three-stage charging mode: trickle charge / constant current / constant voltage. Housed in a compact SOT23-5L package with an integrated MOSFET power output, the device requires no external resistors or isolation diodes, minimizing the external component count for easy design integration in portable products. The input/output ports support a maximum voltage of 11V, making it suitable for USB power supplies and adapter power environments. During high-voltage, high-power operation or elevated ambient temperatures, an advanced thermal regulation circuit automatically reduces the charge current to lower the die temperature and improve operational reliability.

The TP4054 charge current is set by a single external resistor. An advanced charge current monitoring system automatically terminates charging when the float voltage is reached and the charge current drops to 1/10 of the programmed value. The charge termination voltage is set at 4.2V. When the charge source is removed, the device automatically enters a low-current state of 1.0μA, minimizing the impact of leakage current on battery capacity.

The TP4054 features a built-in reverse-polarity protection function. When the Li-ion battery is connected in reverse, the IC automatically enters a protection state, preventing breakdown or damage and reducing the risk of accidents caused by battery self-discharge. The TP4054 also provides input undervoltage lockout and automatic recharge functionality, with a dedicated pin for connecting an LED to indicate charging status.

Features

AI Translation
  • 500mA programmable charge current
  • Reverse battery protection
  • Maximum voltage up to 11V
  • 4.2V preset charge voltage (±1% accuracy)
  • Constant current/constant voltage operation with thermal protection
  • Advanced charge current output monitoring
  • Standby BAT pin current below 1.0μA
  • Supply current 40μA when not operating
  • Complete charge status indication
  • 2.9V trickle charge threshold voltage
  • No external MOSFET, sense resistor, or blocking diode required
  • Soft-start to limit inrush current
  • SOT23-5L package

Applications

AI Translation
  • Lithium battery charger
  • Mobile phones, PDAs, MP3 players
  • Bluetooth applications