参数资料
型号: TC649BEPA
元件分类: 运动控制电子
英文描述: BRUSHLESS DC MOTOR CONTROLLER, PDIP8
封装: 0.300 INCH, PLASTIC, DIP-8
文件页数: 8/36页
文件大小: 704K
代理商: TC649BEPA
TC646B/TC648B/TC649B
DS21755B-page 16
2003 Microchip Technology Inc.
FIGURE 4-9:
TC646B/TC649B Behavioral Algorithm.
Fire Start-up
Timer
(1 sec)
Fan Pulse
Detected?
Fan Pulse
Detected?
VIN < VSHDN?
VIN < VAS?
Shutdown
VOUT = 0
Auto-
Shutdown
VOUT = 0
Yes
No
Yes
Power-Up
Normal
Operation
Fan Fault
Power-on
Reset
FAULT = 1
VIN > VREL?
No
VIN>
(VAS+ VHAS)
Yes
No
Hot Start
Fire Start-up
Timer
(1 sec)
Fire Start-up
Timer
(1 sec)
VIN > VREL?
Yes
Fan Fault
Clear Missing
Pulse Detector
VOUT
Proportional
to VIN
VIN < VSHDN?
VIN < VAS?
VIN > VOTF?
M.P.D.
Expired?
Fan Pulse
Detected?
Shutdown
VOUT = 0
Auto
Shutdown
VOUT = 0
No
Yes
Normal
Operation
Power-Up
VIN >
(VAS + VHAS)
No
Yes
Hot Start
Yes
No
FAULT = 0
Yes
Fire
Diagnostic
Timer
(100 msec)
Fan Pulse
Detected?
Fan Pulse
Detected?
Yes
No
FAULT = Low,
VOUT = High
16 Pulses
Detected?
No
Yes
Power-Up
VIN< VSHDN?
VIN > VREL?
Fan Fault
Yes
Normal
Operation
Shutdown
VOUT = 0
Yes
No
TC646B Only
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