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參數(shù)資料
| 型號(hào)： | THMC45DGNR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, PDSO8 |
| 封裝： | PLASTIC, MSOP-8 |
| 文件頁數(shù)： | 9/15頁 |
| 文件大?。?/td> | 255K |
| 代理商： | THMC45DGNR |
THMC45
5V AND 3.3V DC BRUSHLESS FAN MOTOR DRIVER
WITH SINGLE WIRE CONTROL
SLIS101A MAY 2001
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME
NO.
I/O
DESCRIPTION
GND
4
I
Ground
H+
6
I
Hall sensor positive input
H
7
I
Hall sensor negative input
OUTA
2
O
Motor winding drive output A
OUTB
3
O
Motor winding drive output B
PWM
8
I/O
PWM duty cycle control input and tachometer/locked rotor detect current sink output
TACH
5
O
Open drain tachometer output signal
VPWR
1
I
5-V Supply voltage input
absolute maximum ratings over operating case temperature range (unless otherwise noted)
Supply voltage input, VPWR (see Note 1)
6 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Open-drain tachometer output voltage, VTACH (see Note 1)
6 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-bridge output voltage, VOUTA, VOUTB (see Note 1)
6 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hall sensor amplifier input voltage, VH+, VH (see Note 1)
6 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speed control voltage input and tachometer/locked rotor feedback, VPWM (see Note 1)
6 V
. . . . . . . . . . . . . .
Continuous H-bridge output current source/sink, IOUTA, IOUTB (see Note 2)
350 mA
. . . . . . . . . . . . . . . . . . . .
Continuous H-bridge output current source/sink, IOUTA, IOUTB (see Note 3)
260 mA
. . . . . . . . . . . . . . . . . . . .
Continuous power dissipation, PD (see Note 4)
2.1 W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating case temperature range, TC
30
°C to 80°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
55
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum junction temperature, TJ
150
°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature (soldering, 10 sec), TLEAD
300
°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES:
1. All voltage values are with respect to GND.
2. Assumed package plus PCB system thermal impedance = 170
°C/W, TA = 25°C.
3. Assumed package plus PCB system thermal impedance = 170
°C/W, TA = 80°C.
4. In free air at TA = 25°C, assumed 58.4°C/W and TJ = 150°C.
recommended operating conditions
MIN
MAX
UNIT
Supply voltage, VPWR
2.5
5
V
PWM high-level input voltage, VIH
2
V
PWM low-level input voltage, VIL
0.8
V
PWM input frequency, fPWM
18
50
kHz
Operating case temperature, TC
30
80
°C
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