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产品信息
三相无刷传感器风扇驱动ICA5947KLPTR-T ALLEGRO 5-20W重点推广型号
FEATURES AND BENEFITS
AEC-Q100 qualified
Speed curve configuration via EEPROM
PC serial port
Sinmusoidal moduation for reduced audible noise and
low vibration
Sensorless(no Hall sensoSs required)
Low RpsOs power MOSFETSs
3.3V/20 mA linear regulator
PWM or analog spee imput
FG speed output
Slew rate control
Lock detection
Sof start
Low power standby mode
Overcurent protection
Overvoltage protection
DESCRIPTION
The A5947-B three phase motor driver IC incorporates
sensorlessimusoidal drive to minimize vibration fo a wide
variety of fan applications. Sensorless controleliminates the
requirement for Hall sensors.
A flexible closed-loop speed control system s integrated into
the IC. EEPROMis used to tailor the common fumnctions of the
fan speed curve to a specific application. This eliminates the
requirement for a microprocessOr-based system and minimizes
programming requirements.
The A5947-B is available in a 28-contact 5 mmx5mm QFN
with exposed thermal pad (sufix ET) and a 20-lead TSSOP
with exposed thermal pad (sufix LP).