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AM9468 Datasheet(PDF) 6 Page - Diodes Incorporated

Part # AM9468
Description  SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER
PDF  16 Pages
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Manufacturer  DIODES [Diodes Incorporated]
Direct Link  http://www.diodes.com
Logo DIODES - Diodes Incorporated

AM9468 Datasheet(HTML) 6 Page - Diodes Incorporated

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AM9468
Document number: DS38663 Rev. 1 - 2
6 of 16
www.diodes.com
May 2016
© Diodes Incorporated
AM9468
Operating Characteristics
Standby and Start-up Timing
When PWM pin input signal is logic
“L” level continuously for time longer than tSLP, the device enters standby mode as shown below. When PWM
pin signal is “H” level, the device turns active and operates normally. The PWM pin is also used to control the motor speed with external PWM
signal into this pin. The lowest frequency PWM signal is defined by tSLP, i.e. the PWM duty low time has to be smaller tSLP for motor speed control.
tSLP = 400µs typical
PWM
HB
OUT1/OUT2
VDD
Active
Stand-by
Active
Stand-by
Active
tSLP
tSLP
In Normal Operation/Rotation
PWM
OUT1
OUT2
FG
HIN+-HIN-
RD
HYS
HYS
Truth Table for Various Modes with PWM pin
HIN+
HIN-
PWM
OUT1
OUT2
FG
MODE
H
L
H
H
L
L
Drive
L
L
L
Regenerate
L
H
H
L
H
OFF
Drive
L
L
L
Regenerate



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