TS51224 Wireless Power Receiver and Battery Charger WIRELESS CHARGING Features Description 40V maximum input voltage TS51224 is a fully-integrated wireless power receiver and battery charger for low-power, wearable applications that Single-cell Li-Ion or Li-Polymer charger with require a low-cost and space-saving solution. The TS51224 programmable charging current and topoff voltage can operate by itself as a single-chip wireless power System rail available with deeply discharged battery receiver in proprietary applications. It can also operate in Integrated switches for narrow VDC power path conjunction with a wireless power controller or an management application microcontroller to support the Qi, PMA or Supports Qi, AirFuel Inductive and Resonant (PMA, A4WP wireless charging standards as well as proprietary A4WP) and proprietary charging standards standards up to 2W combined system/battery power. Up to 2W combined system/battery power Better than 87% AC-DC efficiency to the system Applications Better than 83% AC-DC efficiency to the battery Wearables Integrated switches for load modulation o Watches Integrated frequency detection to support o Bracelets bidirectional communication o Fitness Bands TX to RX CPU alert or reset signal o Smart Jewelry Integrated minimum load current sink o Smart Glasses Thermal shutdown at 1309C junction temperature Health Monitors and over-current protection Electric Toothbrushes Low external component count Tablets Junction operating temperature -409C to 1259C Wireless Keyboard and Mouse Product is lead-free, halogen-free, RoHS / WEEE Medical Applications compliant Wireless Headsets ID Tags Augmented Reality Typical Application Circuit TS51224 1 of 20 www.semtech.com Final Datasheet Rev. 1.0 Semtech June 19, 2017 Ball Configuration Figure 1: TS51224 Ball Configuration (Top view with ball 1 designator) TS51224 2 of 20 www.semtech.com Final Datasheet Rev. 1.0 Semtech June 19, 2017