LB11660RV
Monolithic Digital IC
Half-pre Motor Driver
Single-Phase Full-Wave Drive,
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 = 0.5, 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).
www.onsemi.com
SSOP16 (225mil)
ORDERING INFORMATION
See detailed ordering and shipping information on page 9 of this data sheet.
© Semiconductor Components Industries, LLC, 2015
1
August 2015 - Rev. 1
Publication Order Number :
LB11660RV/D