LY6399
Battery Charging IC Lithium Battery QFN-16-EP(3x3)
30V withstand voltage TWS earphone charging case management chip
- Manufacturer
- Lingyang Micro
- Manufacturer part #
- LY6399
- Store part #
- C46613883
- Package / case
- QFN-16-EP(3x3)
- Category
- Battery Management
- Packaging
- Tape & Reel (TR)
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement · policy
3,935 in stock
#C46613883
Stock & price checked 6 days ago
| Quantity | Unit price | Pack price |
|---|---|---|
| 5+ | ₹12.85 | ₹64.25 |
| 50+ | ₹11.27 | ₹563.50 |
| 150+ | ₹10.49 | ₹1,573.50 |
| 500+ | ₹9.91 | ₹4,955.00 |
| 2,500+ | ₹9.43 | ₹23,575.00 |
| 4,000+ | ₹9.19 | ₹36,760.00 |
5 × ₹12.85
₹64.25
excl. GST
₹75.82 incl. 18% GST
- Dispatch in 7–10 working days
- GST invoice with every order
- Standard pack: 4,000 per reel
LY6399
₹64.25 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
- Charge Current - Max
- 300mA
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
- 0.113 g
Overview
LY6399 is a fully integrated power management IC designed for Bluetooth earphone charging cases. It integrates a lithium battery charge management module, a synchronous boost converter, battery fuel gauge functionality, and multiple protection features. The chip incorporates an input overvoltage protection circuit with an input voltage rating up to 30V, along with adapter adaptive capability to prevent abnormal conditions caused by insufficient adapter capacity or excessive cable resistance. It supports direct drive control via Hall sensor or MCU, enabling automatic earphone connection and LED activation upon lid opening, as well as automatic boost output activation upon lid closing, simplifying peripheral circuit design. The chip supports automatic load detection and light-load auto-shutdown, delivering ultra-low standby current. Additionally, it integrates NTC temperature monitoring functionality, requiring only a single external resistor to implement temperature protection for the battery charge and discharge process.
Applications
- Bluetooth earphone charging case
- Portable lithium battery-powered devices
Key features
- Integrated input overvoltage protection, VIN input withstand voltage 30V
- NTC temperature monitoring for battery charge/discharge process
- Hall sensor or MCU direct-drive control output
- With Hall sensor: open-lid light-on for 8 seconds, close-lid auto-activates boost
- Adapter adaptive voltage: 4.6V
- Light-load auto-shutdown current: 7mA
- Standby output voltage selectable: 2V, battery voltage, 5V, or 0V
- Standby current after shutdown in voltage-drop mode: 4.5uA
- Standby current after shutdown in 5V constant output mode: 45uA
- Independent detection for dual earbuds placed in charging case
- Charge current: 200mA~300mA
- Discharge current: 0.5A
- Output overvoltage, short-circuit, and overcurrent protection
- Intelligent temperature control
- 1/2/3/4 LED battery level indication
- Single-click power-on, long-press power-off
- Boost conversion efficiency up to 93%
- Package: QFN16 (3mm×3mm)
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