TS51231-QFNR Semtech

TS51231 High Efficiency Transmitter Driver for Wireless Power Systems Power Management Features Description Supports portable wireless charging applications The TS51231 is a transmitter driver and output stage for wireless charging applications. The TS51231 can support Wireless power systems up to 5W output systems up to 5W output and proprietary applications. Integrated gate driver and output stage Single pin control for switching the output stage Switching of the TS51231 is controlled by the wireless power Low external component count transmitter controller (TS80002 or similar). Applications Specification Low-power wireless chargers for: 16 pin 3x3 QFN Smart Watches Wearables Toys Portable Lighting Medical Devices Typical Application Circuit TS80002 DC + TS51223 Supply TS51231 Load Application Processor Transmitter Receiver TS51231 1 of 10 www.semtech.com Final Datasheet Rev 2.0 Semtech August 29, 2018 Proprietary and ConfidentialPGND GND PGND VDD VIN HSON VIN NC Pin-out (Top view) EN SW SDA SW SCL BOOT nFLT NC Pin-out Configuration Pin Pin Symbol Function Description 1 EN Enable Enable 2 SDA I2C Serial Data I2C Serial Data 3 SCL I2C Serial Clock I2C Serial Clock 4 nFLT Status Fault Status 5 NC Reserved Reserved 6 HSON Driver Driver high-side control 7 VDD Supply Device Supply 8 GND GND Device GND 9 NC Reserved Reserved 10 BOOT Bootstrap Pin Connected through 22nF capacitor to SW pin 11 SW Switching Node Connected to transmitter coil 12 SW Switching Node Connected to transmitter coil 13 PGND Power GND Power GND 14 PGND Power GND Power GND 15 VIN Power Supply Power Supply 16 VIN Power Supply Power Supply 17 PAD Power PAD Power GND TS51231 2 of 10 www.semtech.com Rev 2.0 Final Datasheet Semtech August 29, 2018 Proprietary and Confidential