TC78B002FTG

TOSHIBA CMOS Integrated Circuit Silicon Monolithic TC78B002FTG Single Phase Full-wave Driver for Fan Motor TC78B002FTG TC78B002FTG is a single phase full-wave driver for fan motor. It has a DMOS device in an output transistor. A highly effective drive is possible by adopting a DMOS output driver with low ON resistance and a PWM drive system. Features Single-phase full-wave drive Motor power supply voltage: VM =16V (maximum operating range) Output current: Iout = 1.5A (max.) PWM control Built-in oscillation circuit (External resistor) Soft switching drive Lock protection, Automatic recovery Quick start Built in hall bias Rotation Speed Detection (FG) and Lock Detection (RDO) Output Current limit function Built in over current protection Built in thermal shut down circuit TC78B002FTG Weight: 0.02g (typ) P-WQFN16-0303-0.50-002 1 2013-10-22 Block Diagram (Application circuit) 00..11uμFF VREG HP Hall Ele. HM 5V Regulator ISD VSOFT VOFF LA 7bit A/D VMI VSP OSCR OSC Control Logic Pre Driver TSD 24kΩ Lock Protection GND TC78B002FTG VM OUT1 M OUT2 FG RDO RS 2 2013-10-22 Pin Assignment VMI VSOFT VREG HP 16 15 14 13 HM 1 12 LA OSCR 2 11 VOFF RDO 3 10 VSP OUT1 4 9 FG 5678 TC78B002FTG OUT2 VM RS GND 3 2013-10-22 Pin Description Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin name HM OSCR RDO OUT1 GND RS VM OUT2 FG VSP VOFF LA VMI VSOFT VREG HP TC78B002FTG Description Hall signal input pin－ Connection pin for resistor ...