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| 型號： | TPS65820RSHT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 8-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC56 |
| 封裝： | 7 X 7 MM, GREEN, PLASTIC, QFN-56 |
| 文件頁數(shù)： | 26/98頁 |
| 文件大?。?/td> | 2290K |
| 代理商： | TPS65820RSHT |
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INTERRUPT CONTROLLER AND SYSTEM SEQUENCING
Overview
INTERRUPT
CONTROLLER
INT
SDAT
SCLK
SEQUENCING
ANDOPERATING
MODESETTING
HOT_ RST
RESPWRON
TRSTPWON
SYS _IN
HOST INTERFACE ANDSEQUENCING
I 2CENGINE
I2CREGISTERS
NON-VOLATILE
MEMORY
CONTROL
LOGIC
1V
AC/USB/BAT
(HIGHERVOLTAGE)
VSYS
OUT
HOST
TPS65820
R 1
R 6
A1
C 16
R
5
R
3
R
2
R
4
CTRSTPWON
2.5V
A1
AND
SLVS663B – MAY 2006 – REVISED APRIL 2008 .............................................................................................................................................................. www.ti.com
The TPS65820 has two dedicated internal controllers that execute the host interface and system sequencing
tasks: a sequencing controller and an interrupt controller.
The sequencing controller monitors internal and system parameters and defines the sequencing of the internal
power supplies during power up and power down / power fault events, and executes specific internal power
supply reset operations under external hardware control or host software commands.
The following parameters are monitored by the sequencing controller :
System power bus voltage (at SYS_IN pin), input supply voltage, battery pack voltage
TPS65820 thermal fault status
Integrated supply status
The interrupt controller monitors multiple system status parameters and signals to the host when one of the
monitored parameters toggled, as a result of a system status change. The interrupt controller inputs include all
the parameters monitored by the sequencing controller plus:
Charger status
Battery pack status
ADC status
Internal I2C registers enable masking of all the monitored parameters. Using those registers the host can select
which parameters trigger an interrupt or a power good fault. Power good faults trigger a change in the TPS65820
operating mode, as detailed in the next sections.
A simplified block diagram for the TPS65820 sections that interface to the external host is shown in Figure 27.
Figure 27. Simplified Block Diagram
32
Copyright 2006–2008, Texas Instruments Incorporated
Product Folder Link(s): TPS65820
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TPS65820RSH | 8-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC56 |
| TRU050-GACHA-47M4570000 | PHASE LOCKED LOOP, CDSO16 |
| TRU050-GACNA-12M6240000 | PHASE LOCKED LOOP, CDSO16 |
| TRU050-GALNA-20M0000000 | PHASE LOCKED LOOP, CDSO16 |
| TRU050-GALNB-51M8400000 | PHASE LOCKED LOOP, CDSO16 |
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