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TDA5140A Datasheet(PDF) 2 Page - NXP Semiconductors

Part No. TDA5140A
Description  Brushless DC motor drive circuit
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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 2 page
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April 1994
2
Philips Semiconductors
Product specification
Brushless DC motor drive circuit
TDA5140A
FEATURES
• 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.
APPLICATIONS
• VCR
• Laser beam printer
• Fax machine
• Blower
• Automotive.
GENERAL DESCRIPTION
The TDA5140A 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.
QUICK REFERENCE DATA
Measured over full voltage and temperature range.
Notes
1. An unstabilized supply can be used.
2. VVMOT = VP; +AMP IN = −AMP IN = 0 V; all outputs IO = 0 mA.
ORDERING INFORMATION
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
VP
supply voltage
note 1
4
18
V
VVMOT
input voltage to the output
driver stages
note 2
1.7
16
V
VDO
drop-out output voltage
IO = 100 mA
0.93
1.05
V
ILIM
current limiting
VVMOT = 10 V; RO = 3.9 Ω
0.7
0.8
1
A
EXTENDED TYPE NUMBER
PACKAGE
PINS
PIN POSITION
MATERIAL
CODE
TDA5140A
18
DIL
plastic
SOT102
TDA5140AT
20
SOL
plastic
SOT163A




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