TDF5140 Philips Semiconductors, TDF5140 Datasheet - Page 2
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TDF5140
Manufacturer Part Number
TDF5140
Description
Brushless DC motor drive circuit
Manufacturer
Philips Semiconductors
Datasheet
1.TDF5140.pdf
(19 pages)
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