LCSC Electronics logoLCSC Electronics svg logo
Sign In
USD
Cart
FM TC4056A. product image
  • TC4056A. thumbnail 1
  • TC4056A. thumbnail 2
  • TC4056A. thumbnail 3
  • Pinout
  • Footprint
Images for reference only

FM TC4056A.RoHS

Manufacturer
FMAsian Brands
MPN
TC4056A.
LCSC Part #
C7588528
Packaging
ESOP-8
Customer #
Key Attributes
Single-cell lithium-ion battery charging management chip
Datasheetpdf iconFM TC4056A.
In-Stock: 52,790
52,790 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
10+$ 0.0666$ 0.67
100+$ 0.0529$ 5.29
300+$ 0.0461$ 13.83
1,000+$ 0.041$ 41.00
4,000+$ 0.0369$ 147.60
8,000+$ 0.0349$ 279.20
Standard Packaging4000/Full Reel
Better price for more quantity?
$

Products Specifications

Show similar products (0) >
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Battery Management
ManufacturerFM
PackagingESOP-8
FeaturesConstant current charging;Constant voltage charging;Trickle charging;Automatic recharge;Charge termination;Programmable charging current;Under-voltage lockout;Soft-start
Operating Temperature-40℃~+85℃
Quiescent Current40uA
0V Battery ChargeSupport
Type of BatteryLithium Battery
Operating Voltage4.5V~5.5V
The Chip TypeCharging IC
Interface-
Balance Current-
Charge Current - Max1A
Report an ErrorShow similar products (0) >

Additional Information

TypeDetails
Minimum10
Multiple10
Standard Packaging4000
Sales UnitPiece

Introduction

AI Translation

TC4056A is a complete single-cell lithium-ion battery charge management IC with battery positive/negative polarity reversal protection, capable of withstanding positive and negative pulse surges. Charging is controlled by a constant current/constant voltage linear topology. Its ESOP8 package and minimal external component count make the TC4056A an ideal choice for portable applications. The TC4056A is suitable for operation with both USB power sources and adapter power supplies.

By adopting an internal PMOSFET architecture combined with an anti-backflow circuit, no external sense resistors or isolation diodes are required. Thermal feedback automatically adjusts the charge current to limit die temperature during high-power operation or elevated ambient temperature conditions. The full-charge voltage is fixed at 4.25V, while the charge current can be externally set via a single resistor. When the battery reaches 4.25V, the charge current drops to 1/10 of the programmed value and the TC4056A automatically terminates charging.

When the charger power source is disconnected, the TC4056A automatically enters a low-current state with battery leakage current below 2uA. Additional features of the TC4056A include a charge current monitor, under-voltage lockout, automatic recharge, and two status pins for indicating end-of-charge and input voltage connection.

Features

AI Translation
  • Lithium battery reverse polarity protection, resistant to positive and negative pulse surges
  • 0V battery charge activation
  • Programmable continuous charging current up to 1000mA
  • Dual LED status indication with battery polarity detection capability
  • No MOSFET, sense resistor, or isolation diode required
  • Single-cell lithium-ion battery charging
  • Constant current/constant voltage operation with thermal regulation for maximizing charge rate without risk of overheating
  • Direct single-cell Li-ion battery charging from USB port
  • ±1% accuracy preset charge voltage of 4.25V
  • Automatic recharge function
  • 2 open-drain charge status output pins
  • C/10 charge termination
  • 40uA supply current in standby mode
  • Soft-start to limit inrush current
  • ESOP8 package with excellent thermal dissipation

Applications

AI Translation
  • Single-cell Li-ion battery chargers
  • LED headlamp wired chargers
  • E-cigarette chargers
  • Handheld fans