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JSMSEMI JSM4054R product image
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JSMSEMI JSM4054RRoHS

Manufacturer
JSMSEMIAsian Brands
MPN
JSM4054R
LCSC Part #
C2980735
Packaging
SOT-23-5L
Customer #
Key Attributes
Cradle charger management IC
Datasheetpdf iconJSMSEMI JSM4054R
In-Stock: 2,200
2,200 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
10+$ 0.0552$ 0.0276$ 0.28
100+$ 0.0438$ 0.0219$ 2.19
300+$ 0.0381$ 0.0191$ 5.73
3,000+$ 0.0331$ 0.0166$ 49.80
6,000+$ 0.0297$ 0.0149$ 89.40
9,000+$ 0.028$ 0.0140$ 126.00
Standard Packaging3000/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Battery Management
ManufacturerJSMSEMI
PackagingSOT-23-5L
FeaturesConstant current charging;Constant voltage charging;Trickle charging;Automatic recharge;Charge termination;Programmable charging current;Soft-start;Under-voltage lockout
Operating Temperature-65℃~+125℃
Quiescent Current70uA
0V Battery ChargeNot supported
Type of BatteryLithium Battery
Operating Voltage4.5V~5.5V
The Chip TypeCharging IC
Interface-
Balance Current-
Charge Current - Max535mA
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Additional Information

TypeDetails
Minimum10
Multiple10
Standard Packaging3000
Sales UnitPiece

Introduction

AI Translation

JSM4054R is a constant-current/constant-voltage cradle charger IC, primarily designed for single-cell lithium battery charging. No external sense resistor is required, and its internal MOSFET structure eliminates the need for an external reverse diode.

At high power levels and elevated ambient temperatures, the JSM4054R automatically adjusts the charging current to limit the die temperature. The charge voltage is fixed at 4.2V, and the charge current is programmable via a single external resistor. When the float voltage is reached and the charge current drops to 1/10 of the programmed value, the JSM4054R automatically terminates the charging process. When the input voltage is removed, the JSM4054R automatically enters a low-current mode, drawing less than 2µA from the battery. In standby mode, the supply current is less than 25µA.

The JSM4054R also monitors charge current, features voltage detection and automatic recharge, and provides a status pin indicating charge termination and input voltage status.

Features

AI Translation
  • Programmable charge current up to 500mA
  • No external MOSFET, sense resistor, or reverse diode required
  • Constant current/constant voltage operation with thermal protection
  • Li-ion battery charging via USB port
  • Preset charge voltage with 1% accuracy
  • 20uA standby current
  • 2.9V trickle charge voltage
  • Soft-start limits inrush current
  • SOT23-5 package

Applications

AI Translation
  • Mobile phones
  • PDAs
  • MP3 players
  • Bluetooth headsets