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TDA5141A Datasheet(PDF) 2 Page - NXP Semiconductors

Part No. TDA5141A
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
TDA5141
FEATURES
• 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.
APPLICATIONS
• VCR
• Laser beam printer
• Fax machine.
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).
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
0.9
1.05
V
ILIM
current limiting
VVMOT = 10 V; RO = 1.2 Ω
1.6
1.9
2.3
A
EXTENDED TYPE NUMBER
PACKAGE
PINS
PIN POSITION
MATERIAL
CODE
TDA5141
18
DIL
plastic
SOT102
TDA5141T
28
SOL
plastic
SOT136A
TDA5141AT
20
SOL
plastic
SOT163A




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