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Lingyang Micro LY6397EB product image
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Lingyang Micro LY6397EBRoHS

Manufacturer
Lingyang MicroAsian Brands
MPN
LY6397EB
LCSC Part #
C46613889
Packaging
ESOP-8
Customer #
Key Attributes
30V withstand voltage, Hall direct-drive TWS earphone charging case management chip
Datasheetpdf iconLingyang Micro LY6397EB
In-Stock: 4,000
4,000 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
5+$ 0.0959$ 0.48
50+$ 0.0842$ 4.21
150+$ 0.0784$ 11.76
500+$ 0.074$ 37.00
2,500+$ 0.0705$ 176.25
4,000+$ 0.0688$ 275.20
Standard Packaging4000/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Battery Management
ManufacturerLingyang Micro
PackagingESOP-8
Operating Temperature-25℃~+125℃
Quiescent Current4.5uA
0V Battery ChargeSupport
Type of BatteryLithium Battery
Operating Voltage4.5V~5.9V
The Chip TypeCharging IC;Protection IC
Interface-
Balance Current-
Charge Current - Max300mA
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Additional Information

TypeDetails
Minimum5
Multiple5
Standard Packaging4000
Sales UnitPiece

Introduction

AI Translation

LY6397E is a fully integrated power management IC designed for Bluetooth charging cases. It integrates lithium battery charge management, a synchronous boost converter, battery fuel gauge, and protection function modules. The chip incorporates an input overvoltage protection circuit with an OVP threshold of 6.1V and a VIN input voltage rating of up to 30V. It also features adapter adaptive functionality to prevent charging failures or adapter damage caused by insufficient adapter output capability or excessive charging cable resistance. The chip supports direct Hall sensor drive control of the EN pin, enabling automatic headphone reconnection upon case opening, 8-second LED illumination on case opening, and automatic boost activation on case closure — all without requiring external MOSFETs, transistors, or other output circuit control components. Alternatively, an MCU can be used to control the EN pin for fast switching of the OUT output, enabling one-way communication between the charging case and headphones, likewise without requiring external control MOSFETs or current discharge MOSFETs.

Features

AI Translation
  • Integrated overvoltage protection, VIN input withstand voltage 30V
  • Supports Hall sensor or direct MCU drive control
  • With Hall sensor: lid-open activates light for 8s, lid-close auto-activates boost
  • Standby voltage selectable: 2V, battery voltage, or 0V
  • Adapter adaptive voltage: 4.6V
  • Light-load auto-shutdown current: 7mA
  • Standby current: 4.5uA
  • Selectable charge current: 200mA, 300mA, 500mA
  • Maximum discharge current: 500mA
  • Output overvoltage, short-circuit, and overcurrent protection
  • Intelligent temperature control
  • Supports 1/2/3/4-LED battery level indication
  • Boost efficiency up to 93%
  • ESOP8 package

Applications

AI Translation
  • Bluetooth earphone charging case
  • Portable lithium battery applications