UC3625
无刷 DC 电机控制器
The family of motorcontroller devices integrate most of the functions required for high-performance brushless dc-motor control into one package. When coupled with external power MOSFETs or Darlingtons, these devices perform fixed-frequency PWM motor control in either voltage or current mode while implementing closed-loop speed control and braking with smart noise rejection, safe direction reversal, and cross–conduction protection.
Although specified for operation from power supplies between 10 V and 18 V, the UC1625 controls higher voltage power devices with external level-shifting components. The UC1625 contains fast, high-current push-pull drivers for low-side power devices and 50-V open-collector outputs for high-side power devices or level-shifting circuitry.
The UC1625 is characterized for operation over the military temperature range of –55°C to +125°C, while the UC2625 is characterized from –40°C to +105°C and the UC3625 is characterized from 0°C to +70°C.- .
- *Note:** ESD Protection to 2 kV
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- Drives Power MOSFETs or Power Darlingtons Directly
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- 50-V Open Collector High-Side Drivers
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- Latched Soft Start
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- High-Speed Current-Sense Amplifier with Ideal Diode
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- Pulse-by-Pulse and Average Current Sensing
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- Over-Voltage and Under-Voltage Protection
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- Direction Latch for Safe Direction Reversal
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- Tachometer
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- Trimmed Reference Sources 30 mA
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- Programmable Cross-Conduction Protection
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- Two-Quadrant and Four-Quadrant Operation