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SWCS049I Fiches technique(PDF) 37 Page - Texas Instruments

No de pièce SWCS049I
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

SWCS049I Fiches technique(HTML) 37 Page - Texas Instruments

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SWCS049-004
PWRHOLD
VIO
LDO5
VDD2
VDD1
LDO4
LDO3
LDO8
LDO6
CLK32KOUT
NRESPWRON
t
pd2
t
dsON1
t
dsON2
t
dsON3
t
dsON4
t
dsON5
t
dsON6
t
dsON16
t
pd1
Switch-off sequence
t
: Switch-on sequence
ond
NRESPWRON2
t
dsON15
i
37
TPS65911
www.ti.com
SWCS049S – JUNE 2010 – REVISED AUGUST 2018
Submit Documentation Feedback
Product Folder Links: TPS65911
Specifications
Copyright © 2010–2018, Texas Instruments Incorporated
5.21.2 Switch-ON and Switch-OFF Sequences and Timing
This section describes an example boot sequence. Each TPS65911x device supports a dedicated
EEPROM boot sequence to match specific processor requirements. Fixed boot mode is the same in all
TPS65911x devices. Boot mode selection is described in Section 6.5.2.
NOTE: Figure 5-1 is for illustrative purposes only and does not describe any actual TPS65911x part number.
Figure 5-1. Boot Sequence Example With 2-ms Time Slot and Simultaneous Switch-Off of Resources
Table 5-3. Switching Characteristics for Boot Sequence Example
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
tdsON1
PWRHOLD rising edge to VIO
LDO5 enable delay
66 × tCK32k =
2060
µs
tdsON2
VIO to VDD2 enable delay
64 × tCK32k =
2000
µs
tdsON3
VDD2 to VDD1 enable delay
64 × tCK32k =
2000
µs
tdsON4
VDD1 to LDO4 enable delay
64 × tCK32k =
2000
µs
tdsON5
LDO4 to LDO3, LDO8 enable delay
64 × tCK32k =
2000
µs
tdsON6
LDO3 to LDO6 enable delay
64 × tCK32k =
2000
µs
tdsON7
LDO6 to CLK32KOUT rising-edge
delay
9 × 64 ×
tCK32k =
18000
µs
tdsON16
CLK32KOUT to NRESPWON
NRESPWON2 rising-edge delay
64 × tCK32k =
2000
µs
tdsONT
Total switch-on delay
32
ms
tpd1
PWRHOLD falling edge to
NRESPWON
NRESPWON2 falling-edge delay
2 × tCK32k =
62.5
µs



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