In order to cope with the increasing computing power of servers, Weltrend provides 1-phase/3-phase and sensor/sensorless BLDC controllers for server cooling fans. The controllers include pre-driving, built-in MOSFET, and all-in-one (Hall sensor/MOSFET) solutions.
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BLDC motor drivers and controllers
Item
Description
Package
WT51FS16
5V BLDC controller
MSOP10 / QFN16
WT51FD16
12V sensor-less BLDC controller with built-in 12V to 5V LDO and BEMF detection circuit
QFN16
WT51FM24
12V sensor-less BLDC controller with built-in 12V to 5V LDO, BEMF detection circuit, and 26V NN structure gate driver
QFN24
WT51FH24
12V sensor-less BLDC controller with built-in 12V to 5V LDO, BEMF detection circuit, 30V NN structure gate driver with ISET, and 180° SVM control
QFN24
WT58F032
32-bit 5V Motor Controller
LQFP48 / QFN40