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EG Micro EG4321RoHS

Manufacturer
EG MicroAsian Brands
MPN
EG4321
LCSC Part #
C481163
Packaging
SOP-8
Customer #
Key Attributes
Lithium battery charging management chip
Datasheetpdf iconEG Micro EG4321
In-Stock: 980
980 In stock, ships now
Minimum: 5Multiple: 5Sales Unit: Piece
Add to BOM List
QtyUnit PriceTotal Amount
5+$ 0.152$ 0.76
50+$ 0.1214$ 6.07
150+$ 0.1061$ 15.92
500+$ 0.0947$ 47.35
2,500+$ 0.0798$ 199.50
4,000+$ 0.0752$ 300.80
Standard Packaging4000/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Battery Management
ManufacturerEG Micro
PackagingSOP-8
Operating Temperature-45℃~+85℃
Interface-
Quiescent Current1.6mA
0V Battery ChargeNot supported
Type of BatteryLithium Battery
Operating Voltage3.5V~18V
FeaturesConstant current charging;Constant voltage charging;Programmable charging current
The Chip TypeCharging IC
Balance Current-
Charge Current - Max-
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Introduction

AI Translation

EG4321 is a lithium battery charge management IC designed for AC/DC power supplies. It features constant voltage, constant current, and automatic state switching functions, with an integrated dual-LED charge indicator switching circuit and driver circuit, greatly reducing the external component count, improving system stability, and lowering production costs.

The EG4321 integrates a 2.5V reference voltage source, a 140mV reference voltage source, and a 20mV reference voltage source, along with two op-amps, a current comparator, and an LED control driver circuit. The 2.5V reference voltage source and one internal op-amp form a precision voltage control loop — users can adjust the output voltage for the lithium battery constant voltage phase by setting the values of two external voltage-sampling resistors. The 140mV reference voltage source and the other internal op-amp form a precision current control loop — users can adjust the output current for the lithium battery constant current phase by setting the value of the external current-sampling resistor. The 20mV reference voltage source and the internal current comparator form a precision dual-LED control circuit.

Features

AI Translation
  • Dedicated to lithium battery charge control, integrating constant voltage, constant current, and charge-status indicator switching control modules
  • Internal precision triple voltage reference sources dedicated to constant voltage, constant current, and charge-status indicator module circuits
  • Internal dual-LED charge indicator switching and driver circuits
  • Minimal external components
  • Easy compensation
  • Low quiescent current: 1.6mA

Applications

AI Translation
  • Various lithium battery chargers
  • Balance scooter chargers
  • Inverter chargers
  • Electric vehicle chargers