TDA5142T - NXP

TDA5142T Brushless DC motor drive circuit

APPLICATIONS • High-power applications e.g.: – high-end hard disk drives – automotive. TDA5142T The TDA5142T is a bipolar integrated circuit used to drive 3-phase brushless DC motors in full-wave mode. The device is sensorless (saving of 3 hall-sensors) using the back-EMF sensing technique to sense the rotor position. It includes a brake function and 6 pre.

Features

• Full-wave commutation without position sensors
• Built-in start-up circuitry
• Six outputs that can drive three external transistor pairs:
  – output current 0.2 A (typ.)
  – low saturation voltage
  – built-in current limiter
• Thermal protection
• Tacho output without extra sensor
• Transconductance amplifier for an external control transistor
• Motor brake facility. QUICK REFERENCE DATA Measured over full voltage and temperature range. SYMBOL VP VVMOT VO ILIM Note 1. An unstabilized supply can be used. ORDERING INFORMATION PACKAGE TYPE NUMBER PINS TDA5142T 24 PIN POSITION SOL MATERIAL plastic P.