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| AM1808_16 Datasheet, PDF (234/265 Pages) Texas Instruments – AM1808 ARM® Microprocessor | |||
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AM1808
SPRS653E â FEBRUARY 2010 â REVISED MARCH 2014
www.ti.com
6.29.2 Enhanced Pulse Width Modulator (eHRPWM) Timing
PWM refers to PWM outputs on eHRPWM1-6. Table 6-126 shows the PWM timing requirements and
Table 6-127, switching characteristics.
tw(SYNCIN) Sync input pulse width
Table 6-126. Timing Requirements for eHRPWM
TEST
CONDITIONS
Asynchronous
Synchronous
1.3V, 1.2V, 1.1V, 1.0V
MIN
MAX
2tc(SCO)
2tc(SCO)
UNIT
cycles
cycles
Table 6-127. Switching Characteristics Over Recommended Operating Conditions for eHRPWM
tw(PWM)
tw(SYNCOUT)
td(PWM)TZA
td(TZ-PWM)HZ
PARAMETER
TEST
CONDITIONS
Pulse duration,
PWMx output high/low
Sync output
pulse width
Delay time, trip input
active to PWM forced high
Delay time,
trip input active to PWM
forced low
Delay time,
trip input active to PWM Hi-Z
no pin load; no
additional
programmable
delay
no additional
programmable
delay
1.3V, 1.2V
MIN
MAX
20
8tc(SCO)
25
20
1.1V
MIN
MAX
20
8tc(SCO)
25
20
1.0V
MIN
MAX
26.6
8tc(SCO)
25
20
UNIT
ns
cycles
ns
ns
234 Peripheral Information and Electrical Specifications
Copyright © 2010â2014, Texas Instruments Incorporated
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