Products
Wireless Charging
Semtech TS51224
Wireless Power Receiver and Battery Charger
TS51224 is a fully-integrated wireless power receiver and battery charger for low-power, wearable applications that require a low-cost and space-saving solution. The TS51224 can operate by itself as a single-chip wireless power receiver in proprietary applications. It can also operate in conjunction with a wireless power controller or an application microcontroller to support the Qi or A4WP wireless charging standards as well as proprietary standards up to 2W combined system/battery power.
Overview
Features
- 40V maximum input voltage
- Single-cell Li-Ion or Li-Polymer charger with programmable charging current and topoff voltage
- System rail available with deeply discharged battery
- Integrated switches for narrow VDC power path management
- Supports Qi, Resonant (A4WP) and proprietary charging standards
- Up to 2W combined system/battery power
- Better than 87% AC-DC efficiency to the system
- Better than 83% AC-DC efficiency to the battery
- Integrated switches for load modulation
- Integrated frequency detection to support bidirectional communication
- TX to RX CPU alert or reset signal
- Integrated minimum load current sink
- Thermal shutdown at 130°C junction temperature and over-current protection
- Low external component count
- Junction operating temperature -40°C to 125°C
- Product is lead-free, halogen-free, RoHS / WEEE compliant
Applications
- Wearables
- Watches
- Bracelets
- Fitness Bands
- Smart Jewelry
- Smart Glasses
- Health Monitors
- Electric Toothbrushes
- Tablets
- Wireless Keyboard and Mouse
- Medical Applications
- Wireless Headsets
- ID Tags
- Augmented Reality
Order Codes
- TS51224-M000WCSR
Datasheets and Resources
Restricted