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Lingyang Micro LY6397ET
| Manufacturer | Lingyang MicroAsian Brands |
| MPN | LY6397ET |
| LCSC Part # | C46613894 |
| Packaging | ESSOP-10 |
| Customer # | |
| Key Attributes | 30V withstand voltage TWS earphone charging case management chip |
| Datasheet | Lingyang Micro LY6397ET |
| Alternative Parts | 2 |
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Battery Management | |
| Manufacturer | Lingyang Micro | |
| Packaging | ESSOP-10 | |
| Operating Temperature | -25℃~+125℃ | |
| Interface | - | |
| Quiescent Current | 4.5uA | |
| 0V Battery Charge | Support | |
| Type of Battery | Lithium Battery | |
| Operating Voltage | 4.5V~5.9V | |
| The Chip Type | Charging IC;Protection IC | |
| Balance Current | - | |
| Charge Current - Max | 500mA |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Battery Management | |
| Manufacturer | Lingyang Micro | |
| Packaging | ESSOP-10 | |
| Operating Temperature | -25℃~+125℃ | |
| Interface | - | |
| Quiescent Current | 4.5uA |
| Type | Description | |
|---|---|---|
| 0V Battery Charge | Support | |
| Type of Battery | Lithium Battery | |
| Operating Voltage | 4.5V~5.9V | |
| The Chip Type | Charging IC;Protection IC | |
| Balance Current | - | |
| Charge Current - Max | 500mA |
Introduction
LY6397ET is a fully integrated power management IC designed specifically for Bluetooth earphone charging cases. The chip integrates a lithium battery charge management module, a synchronous boost converter, battery fuel gauging, and multiple protection features. It incorporates an input overvoltage protection circuit with an overvoltage protection threshold of 6.1V, and the VIN input withstand voltage is up to 30V. The chip features adapter adaptive functionality to prevent charging anomalies or adapter damage caused by adapter mismatch or excessive resistance in the charging cable. In addition, the LY6397ET supports direct driving of the enable pin via a Hall sensor, enabling automatic earphone connection upon lid opening, LED illumination for 4 seconds, and automatic boost output activation upon lid closing — without requiring external MOSFETs, transistors, or other control circuitry. The chip can also be controlled via a microcontroller to manage the output and enable one-way communication. The LY6397ET further integrates NTC temperature monitoring functionality, typically requiring only a single NTC resistor to monitor lithium battery temperature during both charging and discharging states.
Features
- Integrated overvoltage protection, VIN input withstand voltage up to 30V
- NTC temperature monitoring during charging and discharging
- Supports Hall sensor or MCU direct-drive control output
- With Hall sensor: open-lid light-on for 4s, close-lid auto-activates boost
- Adapter adaptive voltage: 4.6V
- Selectable modes: always-on or auto-off after 4s
- Light-load auto-shutdown current: 7mA
- Standby voltage configurable: 2V, battery voltage, or 0V
- Standby current: 4.5uA
- Independent detection for dual earbud insertion
- Configurable charging current range: 200mA~500mA
- Discharge current: 300mA
- Output overvoltage, short-circuit, and overcurrent protection
- Intelligent temperature control
- Supports 1/2/3/4 LED battery level indication
- Boost efficiency up to 93%
- Package: ESSOP10
Applications
- Bluetooth earphone charging case
- Portable lithium battery applications
| Qty | Unit Price | Total Amount |
|---|---|---|
| 5+ | $ 0.0802 | $ 0.40 |
| 50+ | $ 0.0704 | $ 3.52 |
| 150+ | $ 0.0654 | $ 9.81 |
| 500+ | $ 0.0618 | $ 30.90 |
| 2,500+ | $ 0.0588 | $ 147.00 |
| 4,000+ | $ 0.0573 | $ 229.20 |
Standard Packaging4000/Full Reel | ||
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Battery Management | |
| Manufacturer | Lingyang Micro | |
| Packaging | ESSOP-10 | |
| Operating Temperature | -25℃~+125℃ | |
| Interface | - | |
| Quiescent Current | 4.5uA | |
| 0V Battery Charge | Support | |
| Type of Battery | Lithium Battery | |
| Operating Voltage | 4.5V~5.9V | |
| The Chip Type | Charging IC;Protection IC | |
| Balance Current | - | |
| Charge Current - Max | 500mA |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Battery Management | |
| Manufacturer | Lingyang Micro | |
| Packaging | ESSOP-10 | |
| Operating Temperature | -25℃~+125℃ | |
| Interface | - | |
| Quiescent Current | 4.5uA |
| Type | Description | |
|---|---|---|
| 0V Battery Charge | Support | |
| Type of Battery | Lithium Battery | |
| Operating Voltage | 4.5V~5.9V | |
| The Chip Type | Charging IC;Protection IC | |
| Balance Current | - | |
| Charge Current - Max | 500mA |
Introduction
LY6397ET is a fully integrated power management IC designed specifically for Bluetooth earphone charging cases. The chip integrates a lithium battery charge management module, a synchronous boost converter, battery fuel gauging, and multiple protection features. It incorporates an input overvoltage protection circuit with an overvoltage protection threshold of 6.1V, and the VIN input withstand voltage is up to 30V. The chip features adapter adaptive functionality to prevent charging anomalies or adapter damage caused by adapter mismatch or excessive resistance in the charging cable. In addition, the LY6397ET supports direct driving of the enable pin via a Hall sensor, enabling automatic earphone connection upon lid opening, LED illumination for 4 seconds, and automatic boost output activation upon lid closing — without requiring external MOSFETs, transistors, or other control circuitry. The chip can also be controlled via a microcontroller to manage the output and enable one-way communication. The LY6397ET further integrates NTC temperature monitoring functionality, typically requiring only a single NTC resistor to monitor lithium battery temperature during both charging and discharging states.
Features
- Integrated overvoltage protection, VIN input withstand voltage up to 30V
- NTC temperature monitoring during charging and discharging
- Supports Hall sensor or MCU direct-drive control output
- With Hall sensor: open-lid light-on for 4s, close-lid auto-activates boost
- Adapter adaptive voltage: 4.6V
- Selectable modes: always-on or auto-off after 4s
- Light-load auto-shutdown current: 7mA
- Standby voltage configurable: 2V, battery voltage, or 0V
- Standby current: 4.5uA
- Independent detection for dual earbud insertion
- Configurable charging current range: 200mA~500mA
- Discharge current: 300mA
- Output overvoltage, short-circuit, and overcurrent protection
- Intelligent temperature control
- Supports 1/2/3/4 LED battery level indication
- Boost efficiency up to 93%
- Package: ESSOP10
Applications
- Bluetooth earphone charging case
- Portable lithium battery applications
C46613894 EasyEDA Library
Compliance & Export Codes
| Type | Details |
|---|---|
| ECCN | - |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
| Type | Details |
|---|---|
| ECCN | - |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Alternative Parts
| MPN | Manufacturer | Packaging | Availability | Unit Price | ||
|---|---|---|---|---|---|---|
| LY6394ET | Lingyang Micro | ESSOP-10 | 3,795 | $ 0.0727 | ||
| LY6806-BN420 | Lingyang Micro | ESSOP-10 | 3,945 | $ 0.202 |