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Legend-Si LGS4056HDA product image
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Legend-Si LGS4056HDARoHS

Manufacturer
Legend-SiAsian Brands
MPN
LGS4056HDA
LCSC Part #
C5124109
Packaging
DFN-8(2x2)
Customer #
Key Attributes
Input high-voltage 1A linear lithium battery charging management chip
Datasheetpdf iconLegend-Si LGS4056HDA
In-Stock: 31,635
31,635 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
5+$ 0.1562$ 0.78
50+$ 0.1283$ 6.42
150+$ 0.1143$ 17.15
500+$ 0.1038$ 51.90
3,000+$ 0.0741$ 222.30
6,000+$ 0.0699$ 419.40
Standard Packaging3000/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Battery Management
ManufacturerLegend-Si
PackagingDFN-8(2x2)
FeaturesConstant current charging;Constant voltage charging;Trickle charging;Automatic recharge;Charge termination;Programmable charging current;Overvoltage protection;Under-voltage lockout;Reverse current blocking;Soft-start
Operating Temperature-40℃~+85℃
Quiescent Current40uA
0V Battery ChargeSupport
Operating Voltage4V~6V
Type of BatteryLithium Battery
The Chip TypeCharging IC
Interface-
Balance Current-
Charge Current - Max1A
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Additional Information

TypeDetails
Minimum5
Multiple5
Standard Packaging3000
Sales UnitPiece

Introduction

AI Translation

LGS4056H is a linear lithium battery charge management IC integrating battery charging management and charge status indication functions, providing a complete power solution for single-cell lithium batteries. The IC features four charging stages: short-circuit current, trickle current, constant current, and constant voltage. Short-circuit charging enables charging of 0V batteries; trickle charging pre-charges fully discharged batteries; constant current charging rapidly charges the battery; and constant voltage charging ensures safe battery charging. The LGS4056H has a default charge termination voltage of 4.2V, with programmable charge current via an external resistor and a maximum charge current of 1A. When the charge current drops to one-tenth of the set termination voltage, the IC automatically terminates the charging process and continuously monitors the battery voltage, automatically restarting charging when the voltage drops below a defined threshold. When the input voltage is removed, the IC automatically enters low-power mode, with battery leakage current below 1μA.

Features

AI Translation
  • Built-in high input voltage linear charger with adjustable charge current
  • Input voltage range: 4V~24V (surge voltage up to 28V)
  • Maximum charge current up to 1A in CC mode, supports real-time charge current configuration via external resistor
  • Compatible with 5V USB power and AC adapters, with hot-plug protection
  • Supports 4.2V/4.35V Li-ion battery types (default no-suffix version is 4.2V)
  • Intelligent charge current adjustment based on battery temperature and input voltage
  • Battery reverse-current blocking, battery leakage current less than 1μA
  • Comprehensive charge status indication and fault indication (e.g., battery not connected)
  • Protection features: UVLO, over-temperature protection, OVP, charge current thermal regulation, CC charge soft-start
  • Junction temperature range: -40℃ to +85℃
  • All pins feature ±2000V HBM ESD protection

Applications

AI Translation
  • Mobile multimedia devices
  • Portable lithium battery-powered devices with USB input