LY6397ET
Battery Charging IC Battery Protection IC Lithium Battery ESSOP-10
30V withstand voltage TWS earphone charging case management chip
- Manufacturer
- Lingyang Micro
- Manufacturer part #
- LY6397ET
- Store part #
- C46613894
- Package / case
- ESSOP-10
- Category
- Battery Management
- Packaging
- Tape & Reel (TR)
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement · policy
3,950 in stock
#C46613894
Stock & price checked 6 days ago
| Quantity | Unit price | Pack price |
|---|---|---|
| 5+ | ₹10.70 | ₹53.50 |
| 50+ | ₹9.39 | ₹469.50 |
| 150+ | ₹8.75 | ₹1,312.50 |
| 500+ | ₹8.26 | ₹4,130.00 |
| 2,500+ | ₹7.86 | ₹19,650.00 |
| 4,000+ | ₹7.66 | ₹30,640.00 |
5 × ₹10.70
₹53.50
excl. GST
₹63.13 incl. 18% GST
- Dispatch in 7–10 working days
- GST invoice with every order
- Standard pack: 4,000 per reel
LY6397ET
₹53.50 for 5 + GST
Specifications
- Operating Temperature
- -25℃~+125℃
- 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
- Charge Current - Max
- 500mA
Packaging & compliance
- RoHS
- RoHS
- Lifecycle
- Active
- Packaging
- Tape & Reel (TR)
- Standard pack
- 4,000 / Reel
- Sold per
- Piece
- Minimum order
- 5 (multiples of 5)
- Unit weight
- 0.151 g
Overview
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.
Applications
- Bluetooth earphone charging case
- Portable lithium battery applications
Key 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
Alternatives
Similar parts — check the datasheet before substituting.
| Part | Manufacturer | Package | Stock | Price from (excl. GST) | Action | |
|---|---|---|---|---|---|---|
 | LY6394ET#C46613902Lingyang Micro · ESSOP-10 | Lingyang Micro | ESSOP-10 | 3,695 | ₹9.64 · 3,695 in stock | View |
 | LY6806-BN420#C50331614Lingyang Micro · ESSOP-10 | Lingyang Micro | ESSOP-10 | 3,675 | ₹26.75 · 3,675 in stock | View |
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