Product Summary

The TDA5736M is a bipolar integrated circuit used to drive 3-phase brushless DC motors in full-wave mode. The TDA5736M is sensorless (saving of 3 hall-sensors) using the back-EMF sensing technique to sense the rotor position. The TDA5736M includes a brake function and 6 pre-drivers able to control FETs or bipolar external transistors. It is ideally suited for high-power applications such as high-end hard disk drives, automotive and other applications. The applications of the TDA5736M include High-power applications, high-end hard disk drives and automotive.

Parametrics

TDA5736M absolute maximum ratings: (1)VP, supply voltage: 4 to 18 V; (2)VI, input voltage; all pins except, VMOT: -0.3 to VP + 0.5 V when VI < 18 V; (3)VVMOT, VMOT input voltage: 3 to 18 V; (4)VO, output voltage, F:G GND VP; AMP OUT: 18 V; OUT-NA, OUT-NB and OUT-NC: VVMOT - 0.9 V OUT-PA, OUT-PB and OUT-PC: 0.2V; (5)VI, input voltage CAP-ST, CAP-TI, CAP-CD and CAP-DC: 2.5 V; (6)Tstg, storage temperature: -55 to +150℃; (7)Tamb, operating ambient temperature: 0 +70℃; (8)Ves, electrostatic handling see Chapter Handling: 500 V.

Features

TDA5736M features: (1)Full-wave commutation without position sensors; (2)Built-in start-up circuitry; (3)Six outputs that can drive three external transistor pairs: output current 0.2 A (typ.); low saturation voltage; built-in current limiter; (4)Thermal protection; (5)Tacho output without extra sensor; (6)Transconductance amplifier for an external control transistor; (7)Motor brake facility.

Diagrams

TDA5736M block diagram