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TS51111 Datasheet(PDF) 1 Page - Semtech Corporation |
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TS51111 Datasheet(HTML) 1 Page - Semtech Corporation |
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1 / 22 page  TS51111 Final Datasheet Rev 2.2 April 17, 2015 www.semtech.com 1 of 22 Semtech Proprietary & Confidential TS51111 TRIUNE PRODUCTS High Efficiency Synchronous Rectifier and Charging IC for Wireless Power Applications Features • High efficiency synchronous rectification of AC input • Supports both Direct and Indirect Charging applications • Supports WPC Qi® compliant and non-compliant systems • Low Rds-on rectifier switches • High voltage input for higher power systems • Up to 20W+ Output • >98% efficiency at high currents • Integrated switches for load modulation • Integrated switch for battery disconnect • Integrated precharge current source • 50mA output low Iq LDO • Analog mux for ADC sensing • Supply Under Voltage Lockout • Low external component count • Ultra-low standby quiescent current • Junction operating temperature -40C to 125C Applications • Cell Phones and Smart Phones • Tablet Computers • eReaders • Laptop Computers • Small Digital Cameras • Portable Video Recorders • Wireless charging for portable devices Description The TS51111 is a fully-integrated synchronous rectifier for wireless charging applications with additional integrated components to minimize system BOM. The TS51111 includes a high efficiency synchronous rectifier to convert the input AC power signal to a DC output level for battery charging. The device supports both direct battery charging and indirect power applications. Low Rds-on switches minimize power dissipation. High voltage input capability allows for simple and robust secondary side charger implementation. An integrated switch provides the battery charging path and combined with the rectifier provides back feed protection to the AC inputs. A precharge current source is also included for low battery voltage precharge operation. Communication capability is achieved using integrated high voltage switches. The TS51111 includes several additional modules to allow simple integration into wireless power systems. Integrated resistor dividers with zero-current off-mode allow external ADC measurement of PDC, PACKP, USB and thermistor voltages. High voltage switches are included for communication modulation. Power to an external controller is provided through an integrated LDO. The ultra-low quiescent current regulator can supply high output currents at low dropout with minimal current draw from the battery. Available in a 45 pin WCSP and 36 pin 6x6 QFN package. |
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