TDF5140 Philips Semiconductors, TDF5140 Datasheet - Page 2

• Manufacturer Part Number: TDF5140
• Description: Brushless DC motor drive circuit
• Manufacturer: Philips Semiconductors

QUICK REFERENCE DATA
Measured over full voltage and temperature range.
Notes
1. An unstabilized supply can be used.
2. V
ORDERING INFORMATION
Philips Semiconductors
FEATURES
1999 March 15
V
V
V
I
TDF5140A
LIM
EXTENDED TYPE NUMBER
P
VMOT
DO
Full-wave commutation (using push/pull drivers at the
output stages) without position sensors
Built-in start-up circuitry
Three push-pull outputs:
– 0.8 A output current (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.
SYMBOL
Brushless DC motor drive circuit
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
note 1
note 2
I
V
O
VMOT
= 100 mA
PIN POSITION
CONDITIONS
= 10 V; R
O
= 0 mA.
2
DIL
APPLICATIONS
GENERAL DESCRIPTION
The TDF5140A 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.
VCR
Laser beam printer
Fax machine
Blower
Automotive.
O
= 3.9
PACKAGE
4
1.7
0.7
MIN.
MATERIAL
plastic
0.93
0.8
TYP.
Product specification
18
20
1.05
1
TDF5140A
MAX.
SOT102
CODE
V
V
V
A
UNIT