UC3625 Texas instruments

UC3625

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UC3625

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Описание

The UC3625 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)

Drives Power MOSFETs or Power Darlingtons Directly
50-V Open Collector High-Side Drivers
Latched Soft Start
High-Speed Current-Sense Amplifier with Ideal Diode
Pulse-by-Pulse and Average Current Sensing
Over-Voltage and Under-Voltage Protection
Direction Latch for Safe Direction Reversal
Tachometer
Trimmed Reference Sources 30 mA
Programmable Cross-Conduction Protection
Two-Quadrant and Four-Quadrant Operation

Rating	Catalog
Vs (min) (V)	10
Features	Brushless DC Motor Control, Current-Limited, Diff Curr Sense Amp, Switching Control, Tachometer
Operating temperature range (°C)	0 to 70