LB11961V

Ordering number : EN8794B LB11961V Monolithic Digital IC Single-Phase Full-Wave Fan Motor Driver http://onsemi.com Overview The LB11961V is a single-phase bipolar drive motor driver that easily implements direct PWM motor drive systems with excellent efficiency. The LB11961V is optimal for fan motor drive in personal computer power supply systems and CPU cooling fan systems. Features Single-phase full-wave drive (16V, 1.0A transistors are built in) Built-in variable speed function controlled by a thermistor input The LB11961V can implement quiet, low-vibration variable speed control using externally clocked high side transistor direct PWM drive. Built-in regenerative diode (Di); only requires a minimal number of external components. Built-in HB Minimum speed setting pin (allows full-speed mode operation at startup) Operates in full-speed mode when the thermistor is removed. Built-in lock protection and automatic recovery circuits FG (speed detection) and RD (lock detection) outputs Built-in thermal shutdown circuit Semiconductor Components Industries, LLC, 2013 May, 2013 92111 SY 20110915-S00002/31407 TI PC 20070206-S0006 No.8794-1/7 LB11961V Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Ratings Unit VCC maximum output voltage OUT pin maximum output current OUT pin output withstand voltage HB maximum output current VCC max IOUT max VOUT max IHB max 18 V 1.0 A 18 V 10 mA VTH input pin voltage VTH max 6V RD...