參數(shù)資料
型號: TMDXCNCD28069ISO
廠商: Texas Instruments
文件頁數(shù): 38/174頁
文件大小: 0K
描述: EVAL PICCOLO CONTROLCARD
標(biāo)準(zhǔn)包裝: 1
系列: TMS320F2806x, Piccolo™, C2000™
主要目的: 接口,RS232,GPIO
嵌入式: 是,MCU,32 位
已用 IC / 零件: TMS320F2806x
已供物品:
PWM
(B)
TZ
(A)
SYSCLK
t
w(TZ)
t
d(TZ-PWM)HZ
SPRS698D – NOVEMBER 2010 – REVISED DECEMBER 2012
5.17.1 Enhanced Pulse Width Modulator (ePWM) Electrical Data/Timing
PWM refers to PWM outputs on ePWM1–8. Table 5-52 shows the PWM timing requirements and Table 5-
53, switching characteristics.
Table 5-52. ePWM Timing Requirements(1)
MIN
MAX
UNIT
tw(SYCIN)
Sync input pulse width
Asynchronous
2tc(SCO)
cycles
Synchronous
2tc(SCO)
cycles
With input qualifier
1tc(SCO) + tw(IQSW)
cycles
(1)
For an explanation of the input qualifier parameters, see Table 5-69.
Table 5-53. ePWM Switching Characteristics
over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
tw(PWM)
Pulse duration, PWMx output high/low
33.33
ns
tw(SYNCOUT)
Sync output pulse width
8tc(SCO)
cycles
td(PWM)tza
Delay time, trip input active to PWM forced high
no pin load
25
ns
Delay time, trip input active to PWM forced low
td(TZ-PWM)HZ
Delay time, trip input active to PWM Hi-Z
20
ns
5.17.2 Trip-Zone Input Timing
Table 5-54. Trip-Zone Input Timing Requirements(1)
MIN
MAX
UNIT
tw(TZ)
Pulse duration, TZx input low
Asynchronous
2tc(TBCLK)
cycles
Synchronous
2tc(TBCLK)
cycles
With input qualifier
2tc(TBCLK) + tw(IQSW)
cycles
(1)
For an explanation of the input qualifier parameters, see Table 5-69.
A.
TZ - TZ1, TZ2, TZ3, TZ4, TZ5, TZ6
B.
PWM refers to all the PWM pins in the device. The state of the PWM pins after TZ is taken high depends on the PWM
recovery software.
Figure 5-44. PWM Hi-Z Characteristics
132
Peripheral and Electrical Specifications
Copyright 2010–2012, Texas Instruments Incorporated
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