UC1625-SP

www.ti.com UC1625-SP SLUSAG8A – SEPTEMBER 2011 – REVISED SEPTEMBER 2011 RAD-TOLERANT CLASS V, BRUSHLESS DC MOTOR CONTROLLER Check for Samples: UC1625-SP FEATURES 1 QML-V Qualified, SMD 5962-91689 Rad-Tolerant: 40 kRad (Si) TID (1) Drives Power MOSFETs or Power Darlingtons Directly 50-V Open Collector High-Side Drivers Latched Soft Start (1) Radiation tolerance is a typical value based upon initial device qualification with dose rate = 10 mrad/sec. Radiation Lot Acceptance Testing is available - contact factory for detials. 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 DESCRIPTION/ORDERING INFORMATION The UC1625 motor controller integrates most of the functions required for high-performance brushless dc motor control into one package. When coupled with external power MOSFETs or Darlingtons, this device performs 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 can control higher voltage power devices with external level-shifting components. The UC16...