参数资料
型号: TC649BEUATR
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: 9/36页
文件大小: 704K
代理商: TC649BEUATR
2003 Microchip Technology Inc.
DS21755B-page 17
TC646B/TC648B/TC649B
FIGURE 4-10:
TC648B Behavioral Algorithm.
VAS = 0V
VIN < VAS?
Auto-
Shutdown
VOUT = 0
Yes
No
Yes
Power-Up
Power-on
Reset
OTF = 1
VIN >
(VAS+ VHAS)
Yes
No
Fire Start-up
Timer
(1 sec)
VIN > 1.20V
VOUT
Proportional
to VIN
VIN > VOTF?
Auto
Shutdown
VOUT = 0
No
Yes
Normal
Operation
VOUT = 0
No
Yes
Minimum
Speed Mode
Normal
Operation
OTF = 1
OTF = 0
VIN < VAS?
Minimum
Speed Mode
VIN = 0V
Power-Up
VIN > 1.20V
VOUT
Proportional
to VIN
VIN > VOTF?
No
Yes
OTF = 1
OTF = 0
VOUT = 0
Yes
No
Yes
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