AM1806 datasheet(214/245 Pages) TI

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AM1806

SPRS658F – FEBRUARY 2010 – REVISED MARCH 2014

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6.25.2 Enhanced Pulse Width Modulator (eHRPWM) Timing

PWM refers to PWM outputs on eHRPWM1-6. Table 6-104 shows the PWM timing requirements and

Table 6-105, switching characteristics.

Table 6-104. Timing Requirements for eHRPWM

TEST

1.3V, 1.2V, 1.1V, 1.0V

UNIT

CONDITIONS

MIN

MAX

tw(SYNCIN)

Sync input pulse width

Asynchronous

2tc(SCO)

cycles

Synchronous

2tc(SCO)

cycles

Table 6-105. Switching Characteristics Over Recommended Operating Conditions for eHRPWM

PARAMETER

TEST

1.3V, 1.2V

1.1V

1.0V

UNIT

CONDITIONS

MIN

MAX

MIN

MAX

MIN

MAX

tw(PWM)

Pulse duration,

26.6

PWMx output high/low

tw(SYNCOUT)

Sync output

cycles

8tc(SCO)

pulse width

td(PWM)TZA

Delay time, trip input

no pin load; no

active to PWM forced high

additional

Delay time,

programmable

trip input active to PWM

delay

forced low

td(TZ-PWM)HZ

Delay time,

no additional

trip input active to PWM Hi-Z

programmable

delay

214

Peripheral Information and Electrical Specifications

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