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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)： | 13/14頁 |
| 文件大?。?/td> | 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 !
8
THMC45
SINGLE-PHASE 5VDC BRUSHLESS FAN DRIVER WITH SINGLE WIRE CONTROL INTERFACE
Product Preview
Figure 1: Hall Sensor Signal Conditioning Waveforms
Shown in truth table format, Table 1 demonstrates OUTA and OUTB commutation and PWM:
H+
H-
OUTA
OUTB
HL
HPWM
LH
PWM
H
Table 1: OUTA & OUTB Low-Side Drive Commutation
De-glitched Hall
Comparator
Output (Internal)
OUTA
OUTB
M1, M3
(Internal)
M2, M4
(Internal)
Delayed Hall
Comparator Output
(Internal)
t
de-glitch
t
de-glitch
Differential Hall
Signal (H+ - H-)
t
dead
t
dead
t
de-glitch
t
dead
t
ignore
t
ignore
t
ignore
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