TB6860WBG,EL Toshiba

TB6860WBG TOSHIBA Bi-CMOS Integrated Circuit Silicon Monolithic TB6860WBG Qi compliant wireless power receiver and charger IC 1. Outline The TB6860WBG is Qi compliant wireless power receiver (Rx) IC. The TB6860WBG includes a bridge rectifier circuit, a modulation circuit, and a step-down DCDC converter. The wireless power system is constructed easily by combining with the TB6865FG which is a wireless power transmitter (Tx) IC. Charge mode and feed mode can be selected because the step-down DCDC converter has two operating modes. It expands usage flexibility. S-WFBGA39-0305-0.40A01 2. Applications Mobile devices (Smartphone, tablet), Battery pack, Mobile accessory etc. 3. Features Input voltage : PVDD2 = 3.4V to 12V Maximum output current : Step-down DCDC converter ... 1.2A 3.3V-LDO output (VDD33) ...... 60mA Synchronous rectification step-down DCDC converter : Selectable modes (feed mode or charge mode) Switching frequency 3MHz 2 I C communication (Slave/Fast mode) WPC v1.0.3 compliant modulation Under voltage lockout (UVLO) Over voltage lockout(OVLO) Over current limit protection (OCL) Thermal shutdown protection (TSD) Package : WCSP (4.25mm2.65mm) This product has a MOS structure and is sensitive to electrostatic discharge. When handling this product, ensure that the environment is protected against electrostatic discharge by using an earth strap, a conductive mat and an ionizer. Ensure also that the ambient temperature and relative humidity are maintained at reasonable levels. 1 2013-06-11 TB6860WBG PVDD1 VR NGD PVDD2 4. Block diagram C9 C10 A6 A3 A1 A2 NGD VC1 A8 LDO OVLO A9 AC1 A10 UVLO Bridge E1 rectifier Step-down SWIN D9 driving circuit E2 DCDC AC2 NGD D10 Controller VDD45 NGD F1 PGND2 VDD45 F2 VC2 A7 F3 CSIN B9 PGND1 VDD15 F4 CSOUT B10 eFUSE B1 AUXPWR TEST3 A5 VREF DAC E10 ISET POR TSD OSC POR B6 LDO A4 VDD33 SDA D2 2 I C Logic SEL SW LDO LDO SCL D1 VDD45 VDD15 VSS F6 D6 E6 F7 F8 E9 F5 B2 C2 C1 F9 F10 TEST2 TEST1 SW R SW C STAT ZCD VBAT VBAT SENS ISENS VDD45 VDD15 Figure 4.1 Block diagram 2 2013-06-11