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參數(shù)資料
| 型號： | TDA5140AT-T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 運(yùn)動控制電子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 1 A, PDSO20 |
| 封裝： | PLASTIC, SOT-163A, SOL-20 |
| 文件頁數(shù)： | 12/24頁 |
| 文件大小： | 174K |
| 代理商： | TDA5140AT-T |
April 1994
2
Philips Semiconductors
Product specication
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
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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