TDA5145 NXP Semiconductors, TDA5145 Datasheet - Page 5

• Manufacturer Part Number: TDA5145
• Manufacturer: NXP Semiconductors

Specifications of TDA5145

• Operating Temperature Classification: Commercial
• Package Type: PDIP
• Operating Supply Voltage (min): 4V
• Operating Supply Voltage (max): 18V
• Lead Free Status / RoHS Status: Not Compliant

Philips Semiconductors
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
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
Fig.2 Pin configuration.
AMP OUT and FG
MOT0, MOT1, MOT2 and MOT3
PARAMETER
V
see Figs 3 and 4
see Chapter “Handling”
I
18 V
CONDITIONS
5
FUNCTIONAL DESCRIPTION
The TDA5145 offers a sensorless three phase motor drive
function. It is unique in its combination of sensorless motor
drive and full-wave drive. The TDA5145 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
TDA5145 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 (2.0 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.
Direction of rotation controlled by one pin.
Uncommitted operational transconductance amplifier
(OTA), with a high output current, for use as a control
amplifier.
Brake function.
GND
0
0.3
0.5
1
55
MIN.
18
V
17
V
V
2.5
+150
+70
2000
P
P
VMOT
+ 0.5
MAX.
Product specification
+ V
TDA5145
DHF
V
V
V
V
V
V
W
V
C
C
UNIT