Features: ` Full-wave commutation (using push/pull drivers at the output stages) without position sensors` Built-in start-up circuitry` Three push-pull outputs: output current 0.85 A (typ.) low saturation voltage built-in current limiter soft-switching outputs for low Electromagnetic Interfere...
TDA5143T: Features: ` Full-wave commutation (using push/pull drivers at the output stages) without position sensors` Built-in start-up circuitry` Three push-pull outputs: output current 0.85 A (typ.) low sa...
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` Full-wave commutation (using push/pull drivers at the output stages) without position sensors
` Built-in start-up circuitry
` Three push-pull outputs:
output current 0.85 A (typ.)
low saturation voltage
built-in current limiter
soft-switching outputs for low Electromagnetic Interference (EMI)
` Thermal protection
` Flyback diodes
` Tacho output without extra sensor
` Transconductance amplifier for an external control transistor.
SYMBOL | PARAMETER | CONDITIONS | MIN. | MAX. | UNIT |
VP |
supply voltage | - | 18 | V | |
VI | input voltage; all pins except VMOT |
VI < 18 V | -0.3 | VP + 0.5 | V |
VVMOT | VMOT input voltage | -0.5 | 17 | V | |
VO | output voltage AMP OUT and FG MOT0, MOT1, MOT2 and MOT3 |
GND -1 |
VP VVMOT + VDHF |
V V | |
VI | input voltage CAP-ST, CAP-TI, CAP-CD and CAP-DC |
- | 2.5 | V | |
Tstg | storage temperature | -55 | +150 | ||
Tamb |
operating ambient temperature | 0 | +70 | ||
Ptot | total power dissipation | see Fig.3 | - | - | W |
Ves | electrostatic handling | see Chapter "Handling" | - | 500 | V |
The TDA5143T 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.
A special circuit is built-in to reduce the EMI (soft switching output stages). TDA5143T is ideally suited as a drive circuit for hard disk drive spindle motor as well as other applications (e.g. laser beam printer).