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参数资料
| 型号： | THMC45DGN |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, PDSO8 |
| 封装： | PLASTIC, MSOP-8 |
| 文件页数： | 10/15页 |
| 文件大小： | 255K |
| 代理商： | THMC45DGN |
THMC45
5V AND 3.3V DC BRUSHLESS FAN MOTOR DRIVER
WITH SINGLE WIRE CONTROL
SLIS101A MAY 2001
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
dc electrical characteristics, VPWR = 5V, TA = 30°C to 80°C (unless otherwise noted)
supply current
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V
Supply voltage normal operation
4.5
5
5.5
VPWR
Supply voltage functional with derated
performance
2.4
4.5
V
VPOR
Power-on reset voltage threshold
Increase
VPWR until logic active
1.5
V
IVPWR VPWR supply current
IL = 0 A
0.5
1.5
mA
IVPWR VPWR supply current
Idle condition, in locked rotor detect
0.5
1.5
mA
IREV
Reverse leakage
VPWR = 5 V at TA = 25°C
5
mA
ISLEEP Sleep-state current
VPWM = 0 V for >2 ms
75
300
A
Hall sensor signal conditioning
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
IIB(HL)
Input bias current
See Note 5
1
A
VICR(HL)
ICR(HL) common mode input voltage range
1
3.5
V
VIO
Hall amplifier input offset voltage
20
0
20
mV
NOTE 5: Design target only. Not tested in production.
OUTA, OUTB phase winding driver outputs
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ILEAK
OUTA, OUTB output leakage current
VPWM = 0 V for >2 ms,
sleep state,
VOUTx = 5 V
1
A
RDSON(Low)
OUTA, OUTB low-side output ON
resistance
IOUTx = 200 mA,
TA = 25°C
1.6
2.5
RDSON(High)
OUTA, OUTB high-side output ON
resistance
IOUTx = 200 mA,
TA = 25°C
1.9
2.5
RDSON
OUTA, OUTB low-side output ON
resistance
IOUTx = 100 mA,
VPWR = 2.4 V
TA = 25°C,
3
6
RDSON
OUTA, OUTB high-side output ON
resistance
IOUTx = 100 mA,
VPWR = 2.4 V
TA = 25°C,
3.5
6
PWM input/TACH pulse output
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIH
PWM high-level input voltage
2
V
VIL
PWM low-level input voltage
0.8
V
IIH
PWM high-level input current
VPWM = 5 V
1
A
IIL
PWM low-level input current
VPWM = 0 V
75
200
A
VOL
PWM input tachometer pulse output low voltage
IPWM = 2 mA
0.4
V
TACH open-drain output
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
IIH
TACH output high leakage
VTACH = VPWR
1
A
VOL
TACH output low voltage
ITACH = 5 mA
400
mV
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