LB11961V Datasheet, PDF (1/7 Pages) Sanyo Semicon Device – Single-Phase Full-Wave Fan Motor Driver

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