LB11660RV Datasheet, PDF (1/9 Pages) Sanyo Semicon Device – Single-Phase Full-Wave Driver

Ordering number : ENA0082
LB11660RV
Monolithic Digital IC
Single-Phase Full-Wave Driver
For Fan Motor
Overview
The LB11660RV is a single-phase bipolar half pre-driver that can achieve high-efficient direct PWM drive with ease. It
is ideal for driving small-sized cooling fans used in servers. The LB11660RV is provided with the RD (lock detection)
output pin and the LB11660FV the FG (rotational speed detection) output pin, respectively.
Features
• Single-phase full-wave drive (15V-1.5A output transistor built in) upper output Tr incorporated half pre-driver.
• Variable speed control by an external signal.
→Separately-excited upper TR direct PWM control method, enabling silent, low-vibration variable speed control.
• Lowest speed setting possible.
• Current limiter circuit (the circuit actuated at IO = 1A when Rf = 0.5Ω, Rf determines the limiter value.).
• Kickback absorption circuit built in.
• Soft switching circuit achieves low power consumption, low loss, and low noise driving at a time of phase change.
• HB built in.
• Lock protection and automatic reset functions incorporated (including a circuit that changes the ON/OFF ratio according
to the power supply voltage).
• RD (lock detection) output.
• Thermal protection circuit incorporated (design guaranteed).
Any and all SANYO Semiconductor products described or contained herein do not have specifications
that can handle applications that require extremely high levels of reliability, such as life-support systems,
aircraft's control systems, or other applications whose failure can be reasonably expected to result in
serious physical and/or material damage. Consult with your SANYO Semiconductor representative
nearest you before using any SANYO Semiconductor products described or contained herein in such
applications.
SANYO Semiconductor assumes no responsibility for equipment failures that result from using products
at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor
products described or contained herein.
D2706 TI IM B8-9145 No.A0082-1/9