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EG Micro EG4318ARoHS

Manufacturer
EG MicroAsian Brands
MPN
EG4318A
LCSC Part #
C81695
Packaging
DIP-8
Customer #
Key Attributes
Three-stage charging management chip for lead-acid batteries
Datasheetpdf iconEG Micro EG4318A
In-Stock: 225
225 In stock, ships now
Not recommended for new designs
Once stock is depleted, this item will be marked as "Out of Stock."
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Minimum: 5Multiple: 5Sales Unit: Piece
QtyUnit PriceTotal Amount
5+$ 0.1822$ 0.91
50+$ 0.1437$ 7.19
150+$ 0.1272$ 19.08
500+$ 0.1065$ 53.25
2,000+$ 0.0974$ 194.80
4,000+$ 0.0919$ 367.60
Standard Packaging50/Full Tube

Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Battery Management
ManufacturerEG Micro
PackagingDIP-8
Operating Temperature-45℃~+85℃
Interface-
Quiescent Current1.6mA
0V Battery ChargeNot supported
Type of BatteryLead-Acid Battery
Operating Voltage3.5V~18V
FeaturesConstant current charging;Constant voltage charging
The Chip TypeCharging IC
Balance Current-
Charge Current - Max2.5A
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Introduction

AI Translation

EG4318/EG4319/EG4320 is a dedicated lead-acid battery charge management IC for AC/DC power supplies, featuring automatic three-stage state switching among constant voltage (CV), constant current (CC), and float charging modes. It integrates a dual-LED charge indicator switching circuit and driver circuit, significantly reducing external component count, improving system stability, and lowering production costs.

EG4318/EG4319 integrate a 2.5V reference voltage, a 250mV reference voltage, and a 50mV reference voltage. EG4320 integrates a 2.5V reference voltage, a 140mV reference voltage, and a 20mV reference voltage. EG4318/EG4319/EG4320 incorporate two op-amps, one current comparator, a float charge control circuit, and an LED control driver circuit. The 2.5V reference together with one internal op-amp forms a precision voltage control loop; users can set the output voltage required for the CV stage by adjusting the two external voltage-sensing resistors and the resistor on pin 6 (Vf). The 250mV reference together with the other internal op-amp forms a precision current control loop; users can set the output current required for the CC stage by adjusting the external current-sensing resistor. The 50mV or 20mV reference together with the internal current comparator forms a precision float voltage control loop and dual-LED control circuit; users can set the output voltage required for the float charging stage by adjusting the two external voltage-sensing resistors. Precise three-stage lead-acid battery charging control extends battery service life.

Features

AI Translation
  • Dedicated to lead-acid battery charge control, integrating constant voltage, constant current, and float charge three-stage control modules
  • Internally integrated precision triple voltage reference sources, dedicated as reference sources for constant voltage, constant current, and float charge module circuits
  • Internally integrated dual-LED charge indication switching circuit and driver circuit
  • Selectable float charge transition current, with customer-customizable float transition current available
  • Minimal external components
  • Easy to compensate
  • Low quiescent current: 1.6mA