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SWCS049F Fiches technique(PDF) 38 Page - Texas Instruments

No de pièce SWCS049F
Description  TPS65911 Integrated Power Management Unit Top Specification
PDF  144 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

SWCS049F Fiches technique(HTML) 38 Page - Texas Instruments

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PWRON
VIO
INT1
NRESPWRON
PWRHOLD
PWRON_LP_IT=1
PWRON_IT=1
Switch-off
sequence
tdPWRONLPTO
tdPWRONLP
tdbPWRONF
SWCS049-006
PWRON_IT=1
PWRON
VIO
INT1
1.8 V
NRESPWRON
Interrupt acknowledge
PWRHOLD
PWRON_IT=1
CLK32KOUT
Interrupt acknowledge
Switch-off
sequence
t
tdbPWRONF
tdSONT
tdbPWRONF
tdONPWHOLD
Switch On sequence
SWCS049-005
PWRON_IT=1
dbPWRHOLDF
Internal pulse tdOINT1
38
TPS65911
SWCS049S – JUNE 2010 – REVISED AUGUST 2018
www.ti.com
Submit Documentation Feedback
Product Folder Links: TPS65911
Specifications
Copyright © 2010–2018, Texas Instruments Incorporated
Table 5-3. Switching Characteristics for Boot Sequence Example (continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
tpd1b
NRESPWON falling edge to
CLK32KOUT low delay
3 × tCK32k =
92
µs
tpd2
PWRHOLD falling edge to supplies
and reference disable delay
5 × tCK32k =
154
µs
5.21.3 Power Control Timing
5.21.3.1 Device State Control Through PWRON Signal
Figure 5-2 shows the device state control through PWRON signal.
A. The DEV_ON or AUTODEV_ON control bits can be used instead of the PWRHOLD signal to maintain supplies
on after a switch-on sequence.
B. The internal POWER ON enable condition pulse, tdOINT1, keeps device active until a PWRHOLD acknowledge.
C. Switch-off from PWRHOLD removal.
Figure 5-2. Device State Control Through PWRON Signal
Figure 5-3. PWRON Long-Press Turnoff



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