TDA5141A Philips Semiconductors, TDA5141A Datasheet - Page 2

• Manufacturer Part Number: TDA5141A
• Description: Brushless DC motor drive circuit
• Manufacturer: Philips Semiconductors

Philips Semiconductors
FEATURES
QUICK REFERENCE DATA
Measured over full voltage and temperature range.
Notes
1. An unstabilized supply can be used.
2. V
ORDERING INFORMATION
April 1994
V
V
V
I
TDA5141
TDA5141T
TDA5141AT
LIM
EXTENDED TYPE NUMBER
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 1.9 A (typ.)
– low saturation voltage
– built-in current limiter
Thermal protection
Flyback diodes
Tacho output without extra sensor
Position pulse stage for phase-locked-loop control
Transconductance amplifier for an external control
transistor.
P
VMOT
DO
Brushless DC motor drive circuit
SYMBOL
VMOT
= V
P
; +AMP IN = AMP IN = 0 V; all outputs I
supply voltage
input voltage to the output
driver stages
drop-out output voltage
current limiting
PARAMETER
PINS
18
28
20
note 1
note 2
I
V
O
VMOT
= 100 mA
= 10 V; R
PIN POSITION
O
CONDITIONS
= 0 mA.
2
APPLICATIONS
GENERAL DESCRIPTION
The TDA5141 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. It
is ideally suited for applications requiring powerful output
stages (minimum current limit of 1.9 A).
SOL
SOL
DIL
VCR
Laser beam printer
Fax machine.
O
= 1.2
PACKAGE
4
1.7
1.6
MIN.
MATERIAL
plastic
plastic
plastic
0.9
1.9
TYP.
Product specification
18
16
1.05
2.3
MAX.
TDA5141
SOT136A
SOT163A
SOT102
CODE
V
V
V
A
UNIT