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TDA5146T Datasheet(PDF) 5 Page - NXP Semiconductors

Part No. TDA5146T
Description  Brushless DC motor drive circuit
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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Philips Semiconductors
Product specification
TDA5146T
Brushless DC motor drive circuit
1994 May 18
5
FUNCTIONAL DESCRIPTION
The TDA5146T offers a sensorless three phase motor drive function. It is unique in its combination of sensorless motor drive and full–wave
drive.
The TDA5146T offers protected outputs capable of handling high currents and can be used with star or delta connected motors. It can easily be
adapted for different motors and applications. The TDA5146T offers the following features:
• Sensorless commutation by using the motor EMF
• Built–in start–up circuit
• Optimum commutation, independent of motor type or motor loading
• Built–in flyback diodes
• Three phase full–wave drive
• High output current (1.8 A)
• Outputs protected by current limiting and thermal protection of each output transistor
• Low current consumption by adaptive base–drive
• Soft switching pulse output for low radiation.
• Accurate frequency generator (FG) by using the motor BMF
• Direction of rotation controlled by one pin.
• FET driver stage to be used in a buck converter
LIMITING VALUES
In accordance with the Absolute Maximum System (IEC 134).
Symbol
Parameter
Min
Max
Unit
VP, Vsup
Supply voltage
–
18
V
VI
Input voltage; all pins except VMOT (VI <18 V)
–0.3
VP+0.5
V
VVMOT
VVMOT input voltage
–0.5
17
V
VO
Output voltage; PWM_OUT and PG/FG
GND
VP
V
VO
Output voltage MOT0, MOT1, MOT2 and MOT3
–1
VVMOT + VD
V
VI
Input voltage CAP–ST, CAP–TI, CAP–CD and CAP–DC
–
2.5
V
Tstg
Storage temperature range
–55
+150
°C
Tamb
Operating ambient temperature range
0
70
°C
Ptot
Total power dissipation
–
–
–
HANDLING
Every pin withstands the ESD test according to MIL–STD–883C cross 1. Method 3015 (HBM 1500
W, 100 pF 3 pulses + and 3 pulses – on each
pin referenced to ground.




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