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參數(shù)資料
| 型號： | THMC45 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 0.25 A, PDSO8 |
| 封裝： | PLASTIC, HTSSOP-8 |
| 文件頁數(shù)： | 10/14頁 |
| 文件大小： | 157K |
| 代理商： | THMC45 |
PRODUCT PREVIEW documents contain information on new
products in the definition Phase. Characteristic data and other
data specifications are subject to change without notice. This
document is to be used for discussion only and should not be
used as the basis for any design.
thmc45.doc
Copyright
2000 Texas Instruments
!TI Strictly Private !
5
THMC45
SINGLE-PHASE 5VDC BRUSHLESS FAN DRIVER WITH SINGLE WIRE CONTROL INTERFACE
Product Preview
Supply Current DC Electrical Characteristics
(VPWR = 5V, Ta = -30 to +80°C Unless Otherwise Noted)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VPWR
Supply voltage
4.5
5
5.5
V
IVPWR
VPWR supply current
ILOAD = 200mA
5
mA
Idle condition,
In locked rotor detect
2mA
ISLEEP
Sleep-state current
PWM = 0V for >100s
10
A
Hall Sensor Signal Conditioning DC Characteristics
(VPWR = 5V, Ta = -30 to +80°C Unless Otherwise Noted)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
IIB(HL)
Input bias current
(design target only)
1A
VICR(HL)
ICR(HL) common mode input
voltage range
1.0
3.5
V
VIO
Hall comparator input offset
voltage
-7
0
+7
mV
HBIAS Output DC Characteristics
(VPWR = 5V, Ta = -30 to +80°C Unless Otherwise Noted)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
IIH
HBIAS Output High Leakage
VHBIAS = VPWR
-1
1
A
VOL
HBIAS Output Low Voltage
IHBIAS = TBDmA
1.0
3.5
V
PWM Input DC Characteristics
(VPWR = 5V, Ta = -30 to +80°C Unless Otherwise Noted)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VIH
PWM high level input voltage
2
V
VIL
PWM low level input voltage
0.8
V
IIH
PWM high level input current
PWM = 5V
-1
+1
A
IIL
PWM low-level input current
PWM = 0V
-1
+1
A
ITACH
Tachometer Pulse Sink
Current
1mA
OUTA, OUTB Phase Winding Driver Outputs DC Characteristics
(VPWR = 5V, TA = -30 to +80°C Unless Otherwise Noted)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
ILEAK
OUTA,OUTB output leakage
current
VPWM = 0V for >100s,
VOUTx = 5V
-1
1
A
RDSON
OUTA, OUTB Low-Side
Output “ON” resistance
IOUTx = 200mA
VPWM = 2.5V
TA = 25°C
TBD
RDSON
OUTA, OUTB High-Side
Output “ON” resistance
IOUTx = -200mA
VPWM = 2.5V
TA = 25°C
TBD
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