TDA5143 Philips Semiconductors, TDA5143 Datasheet - Page 5

• Manufacturer Part Number: TDA5143
• Description: Brushless DC motor drive circuit
• Manufacturer: Philips Semiconductors

Philips Semiconductors
FUNCTIONAL DESCRIPTION
The TDA5143T offers a sensorless three phase motor
drive function. It is unique in its combination of sensorless
motor drive and full-wave drive. The TDA5143T 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 TDA5143T offers the following features:
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
June 1994
V
V
V
V
V
T
T
P
V
SYMBOL
stg
amb
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.
P
I
VMOT
O
I
tot
es
Brushless DC motor drive circuit
supply voltage
input voltage; all pins except
VMOT
VMOT input voltage
output voltage
input voltage CAP-ST, CAP-TI,
CAP-CD and CAP-DC
storage temperature
operating ambient temperature
total power dissipation
electrostatic handling
AMP OUT and FG
MOT0, MOT1, MOT2 and MOT3
PARAMETER
V
see Fig.3
see Chapter “Handling”
I
18 V
CONDITIONS
5
Three phase full-wave drive.
High output current (0.85 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
EMF.
Uncommitted operational transconductance amplifier
(OTA), with a high output current, for use as a control
amplifier.
GND
0
0.3
0.5
1
55
MIN.
18
V
17
V
V
2.5
+150
+70
500
P
P
VMOT
+ 0.5
MAX.
Product specification
TDA5143T
+ V
DHF
V
V
V
V
V
V
W
V
C
C
UNIT