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Lingyang Micro LY4176ST product image
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Lingyang Micro LY4176STRoHS

Manufacturer
Lingyang MicroAsian Brands
MPN
LY4176ST
LCSC Part #
C46613951
Packaging
SOT-23-6
Customer #
Key Attributes
Lithium-ion battery linear charging chip
Datasheetpdf iconLingyang Micro LY4176ST
In-Stock: 780
780 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
10+$ 0.0672$ 0.67
100+$ 0.0531$ 5.31
300+$ 0.0461$ 13.83
3,000+$ 0.0408$ 122.40
6,000+$ 0.0366$ 219.60
9,000+$ 0.0345$ 310.50
Standard Packaging3000/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Battery Management
ManufacturerLingyang Micro
PackagingSOT-23-6
FeaturesConstant current charging;Trickle charging;Automatic recharge;Charge termination;Programmable charging current;Overvoltage protection
Operating Temperature-25℃~+125℃
Quiescent Current1uA
0V Battery Charge-
Type of BatteryLithium Battery
Operating Voltage4.2V~5.8V
The Chip TypeCharging IC
Interface-
Balance Current-
Charge Current - Max800mA
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Additional Information

TypeDetails
Minimum10
Multiple10
Standard Packaging3000
Sales UnitPiece

Introduction

AI Translation

The LY4176ST is a single-cell Li-ion battery linear charger IC with integrated input overvoltage protection. It features an input voltage rating up to 30V, an overvoltage protection threshold of 6.1V, and a configurable maximum charge current of 800mA. The IC incorporates a complete charging sequence — trickle charge, constant current (CC), and constant voltage (CV) — along with an integrated reverse-blocking circuit that eliminates the need for an external isolation diode. An internal intelligent thermal regulation function automatically reduces the charge current under high-temperature conditions to limit the die temperature. Additionally, the NTC function monitors battery temperature and suspends charging when the battery temperature exceeds the configured safe operating range, extending Li-ion battery service life and ensuring safe operation.

Features

AI Translation
  • VIN input withstand voltage up to 30V
  • 6.1V input overvoltage protection
  • Maximum 800mA charge current
  • Pre-charge with 4.2V full-charge voltage
  • Ultra-low self-consumption on BAT pin: < 1μA
  • Intelligent temperature regulation
  • Intelligent recharge function
  • C/10 charge termination
  • Charge and end-of-charge indicator control signals
  • Package: SOT23-6

Applications

AI Translation
  • Portable devices such as small speakers
  • Small fans
  • Bluetooth earphones
  • Power banks
  • Wearable electronics