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LP3910 Datasheet(PDF) 44 Page - Texas Instruments

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Part # LP3910
Description  Power Management IC for Hard-Drive-Based Portable Media Players
PDF  72 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LP3910 Datasheet(HTML) 44 Page - Texas Instruments

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No Battery
POWER OFF
STANDBY
ACTIVE
POWERACK PIN AND BIT = 0
NO WA / USB
CHG
STANDBY
BATTERY INSERT VBATT < VBLA
WA AND USB REMOVED
WA OR USB
WA OR USB
POWERACK PIN AND BIT
FAILED TO GO HIGH DURING
POWERUP SEQUENCE
USB INSERT
AND VBATT > VBLA
(CHARGING IF NEEDED)
POWERACK PIN OR BIT = 1
VBATT < VBLA AND NO WA
ONOFF
BATTERY INSERT VBATT> VBLA
ONOFF AND
VBATT > VBLA
WA INSERT
LP3910
SNVS481M – NOVEMBER 2006 – REVISED DECEMBER 2015
www.ti.com
Device Functional Modes (continued)
Figure 64. Operating Mode State Diagram
8.4.1 State Machine Definitions
VBLA
Battery low alarm threshold
VBATT
Battery voltage
WA
Wall Adapter
USB
Universal Serial Bus Adapter
ONOFF
On off pin event
POWERACK Acknowledgment from the Host Processor
44
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Product Folder Links: LP3910



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