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GC1267F替代LB11867单线圈无刷直流电机驱动外置MOS

The GC1267 is a single-phase bipolar driving motor pre-driver with the variable speed function compatible with external PWM signal.

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Chip description
The GC1267F is a single-phase bipolardriving motor pre-driver with the variable speedfunction compatible with external PWM signal.With a few external parts, a highly-efficient andhighly-silent variable drive fan motor with lowpower consumption can be achieved. Thisproduct is best suited for driving of the serverrequiring large air flow and large currentand the fan motor of consumer appliances.

Chip features
 Single-phase full-wave driving pre-driver
 Variable speed control possible with
external PWM input
 Current limiting circuit incorporated
 Reactive current cut circuit incorporated
 Minimum speed setting pin
 Soft start setting pin
 Lock protection and automatic reset circuits
incorporated
 FG (rotation speed detection) output
 Thermal shutdown circuit incorporated

Chip application
 CPU Cooler/VGA Fan
 Computing & Peripherals
 Industrial
 Server
 Vending Machine

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