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參數資料
型號: TPS65920BZCHR
廠商: TEXAS INSTRUMENTS INC
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PBGA139
封裝: 10 X 10 MM, 0.65 MM PITCH, GREEN, PLASTIC, NFBGA-139
文件頁數: 65/115頁
文件大?。?/td> 1232K
代理商: TPS65920BZCHR
VBAT
DEVOFF(register)
NRESPWRON
REGEN
32K
OUT
CLK
DCDCs
LDOs
SYSEN
HFCLKOUT
CLKEN
NEXT_Startup_event
18 s
m
1.2ms
18 s
m
18 s
m
18 s
m
3.42msbeforedetectionofstartingevent
126 s
m
037-055
SWCS037G
– MAY 2008 – REVISED APRIL 2011
4.5.4
Power-Off Sequence
This section describes the signal behavior required to power down the system.
4.5.4.1
Power-Off Sequence
Figure 4-11 shows the timing and control that occur during the power-off sequence in master modes.
NOTE: All of these timings are typical values with the default setup (depending on the resynchronization between power
domains, state machinery priority, etc.).
Figure 4-11. Power-Off Sequence in Master Modes
Because of the internal frequency used by Power STM switching from 3 to 1.5 MHz when the HF clock
value is 19.2 MHz, if the HF clock value is not 19.2 MHz (with HFCLK_FREQ bit field values set
accordingly
in
the
CFG_BOOT
register),
the
delay
between
DEVOFF
and
NRESPWRON/CLK32KOUT/SYSEN/HFCLKOUT is divided by two (approximately 9
μs).
The DEVOFF event is PWRON falling edge in slave mode and DEVOFF internal register write in master
mode.
Copyright
2008–2011, Texas Instruments Incorporated
Power Module
53
focus.ti.com: TPS65930/TPS65920
相關PDF資料
PDF描述
TPS65920BZCH SPECIALTY CONSUMER CIRCUIT, PBGA139
TPS65930A2ZCHR SPECIALTY CONSUMER CIRCUIT, PBGA139
TPS65930A2ZCH SPECIALTY CONSUMER CIRCUIT, PBGA139
TPS65930BZCHR SPECIALTY CONSUMER CIRCUIT, PBGA139
TPS65930BZCH SPECIALTY CONSUMER CIRCUIT, PBGA139
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