TDA5146T Philips Semiconductors, TDA5146T Datasheet - Page 5

• Manufacturer Part Number: TDA5146T
• Description: Brushless DC motor drive circuit
• Manufacturer: Philips Semiconductors

Philips Semiconductors
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:
LIMITING VALUES
In accordance with the Absolute Maximum System (IEC 134).
HANDLING
Every pin withstands the ESD test according to MIL–STD–883C cross 1. Method 3015 (HBM 1500 , 100 pF 3 pulses + and 3 pulses – on each
pin referenced to ground.
1994 May 18
V
V
V
V
V
V
T
T
P
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
stg
amb
P
I
VMOT
O
O
I
tot
Brushless DC motor drive circuit
, V
sup
Symbol
Supply voltage
Input voltage; all pins except VMOT (V
V
Output voltage; PWM_OUT and PG/FG
Output voltage MOT0, MOT1, MOT2 and MOT3
Input voltage CAP–ST, CAP–TI, CAP–CD and CAP–DC
Storage temperature range
Operating ambient temperature range
Total power dissipation
VMOT
input voltage
Parameter
I
<18 V)
5
–
–0.3
–0.5
GND
–1
–
–55
0
–
Min
18
V
17
V
V
2.5
+150
70
–
P
P
VMOT
+0.5
Max
+ V
D
TDA5146T
Product specification
V
V
V
V
V
V
–
C
C
Unit