전자부품 데이터시트 검색엔진
  Korean  ▼

Delete All
ON OFF
ALLDATASHEET.CO.KR

X  

Preview PDF Download HTML

APW8855 데이터시트(PDF) 32 Page - Anpec Electronics Coropration

부품명 APW8855
부품 상세설명  High Current, High Frequency 7 Outputs Voltage Regulator and Power Management IC for High Performance Tablet and Ultra Notebook Applications
Download  43 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  ANPEC [Anpec Electronics Coropration]
홈페이지  http://www.anpec.com.tw
Logo ANPEC - Anpec Electronics Coropration

APW8855 데이터시트(HTML) 32 Page - Anpec Electronics Coropration

Back Button APW8855 Datasheet HTML 28Page - Anpec Electronics Coropration APW8855 Datasheet HTML 29Page - Anpec Electronics Coropration APW8855 Datasheet HTML 30Page - Anpec Electronics Coropration APW8855 Datasheet HTML 31Page - Anpec Electronics Coropration APW8855 Datasheet HTML 32Page - Anpec Electronics Coropration APW8855 Datasheet HTML 33Page - Anpec Electronics Coropration APW8855 Datasheet HTML 34Page - Anpec Electronics Coropration APW8855 Datasheet HTML 35Page - Anpec Electronics Coropration APW8855 Datasheet HTML 36Page - Anpec Electronics Coropration Next Button
Zoom Inzoom in Zoom Outzoom out
 32 / 43 page
background image
Copyright
© ANPEC Electronics Corp.
Rev. A.1 - Dec., 2015
APW8855
www.anpec.com.tw
32
Table 5. I2C Slave Addresses
APW8855 is a slave-only device that is mastered by the SoC. It resides off the SoC
’s I2C. The slave device imple-
mented on APW8855 side is an asynchronous implementation and will support the high speed mode (3.4MHz).
Some of the main features for the I2C slave are:
Slave Address
APW8855 is accessed using a 7-bit addressing scheme.
I2C slave is not allowed to stretch the clock, and must be capable of being multi-mastered in a debug
environment.
The interface draws as minimum power when not actively reading/writing registers.
The slave adapts to the incoming frequency without any communication as the protocol for fast mode and
high speed mode is the same.
Interface implementation is asynchronous.
The POK circuitry monitors the VR1-VR5 via the FB pins of each regulator to make sure that the output of each
regulator has reached its desired set point during the start up. When all these voltages have reached 90% of their set
point, then POK will switch from a low state to high after a 1 ms delay time. The POK pin is an open drain output that
will switch high via an external pull up resistor. It can be pulled up to a maximum voltage of up to 5.5V.
The POK also monitors the FB voltage for any over voltage that may happen during the operation. This threshold is
typically set at 130% of the desired set point. If any of the voltages exceeds this threshold and satisfied the blanking
time the POK switches low and after a short delay of about 2usec or so, the outputs latch off and system returns to G3
state.
During the power down or at any point either of these VR1-VR5, output voltages drop below 90% typical set point and
continue over blanking time, the POK pin switches to low state again.
15.1 VR Function Description
(Cont.)
POK Output
15.2 I2C Function Description
I2C Overview
APW8855 supports the standard I2C read and write functions. The configuration register space is divided to 59-byte
partitions. APW8855 supports five 7-bit device addresses to access each of the 59 byte partitions.
Slave Address
11 0111 0
The slave addresses need to be locked in order to avoid that software can overwrite them and disable the
communication.


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39  40  41  42  43 


데이터시트 다운로드

Go To PDF Page


링크 URL




개인정보취급방침
ALLDATASHEET.CO.KR
ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크교환   |   제조사별 검색
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn