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TDA5145

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 2.0 A (typ.) built-in current limiter soft-switching outputs for low Electromagnetic Interference (EMI)` Thermal protec...

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SeekIC No. : 004516426 Detail

TDA5145: 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 2.0 A (typ.) built-i...

TDA5145 Data Sheet

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Part Number:
TDA5145
Supply Ability:
5000

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  • 1~5000
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  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



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 2.0 A (typ.)
          built-in current limiter
          soft-switching outputs for low Electromagnetic Interference (EMI)
` Thermal protection
` Flyback diodes
` Tacho output without extra sensor
` Motor brake facility
` Direction control input
` Reset function
` Transconductance amplifier for an external control transistor.


Application

` General purpose spindle driver e.g.:
        Hard disk drive
        Tape drive
        Optical disk drive.


Pinout

Connection Diagram


Specifications

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 Figs 3 and 4 - - W
Ves electrostatic handling see Chapter "Handling" - 2000 V



Description

The TDA5145 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.

TDA5145 includes bidirectional control, brake function and has a special circuit built-in to reduce the EMI (soft switching output stages).




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