Datasheet > TPT29548A

TPT29548A

更新时间： 2024-04-09 18:59:42

品牌	Logo	应用领域
思瑞浦 - 3PEAK		/
页数	文件大小	规格书
18页	1157K
描述
8-channel I2C Switch with Reset

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中文翻译

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数据手册

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TPT29548A 数据手册

TPT29548A

8-channel I²C Switch with Reset

Features

Description

 Bidirectional Translator of 1:8 I²C Switch

The TPT29548A is a 1:8 bidirectional translating I²C

switch. The SCL/SDA upstream pair fans out to eight

downstream channels. Any single SCn/SDn channel

or combination of channels can be selected,

determined by the programmable control register.

 Active-Low Reset Input

 Three address terminals, allowing up to 8 devices

on the I²C Bus

 Operating Power-Supply Voltage Range of 2.3 V

If one of the downstream I²C buses is stuck in a low

to 5.5 V

̅̅̅̅̅̅̅̅̅̅

state, then an active-low reset (RESET) input helps

 Allows Voltage-Level Translation Between 2.5 V,

3.3 V, and 5 V Buses

 Support Standard Mode and Fast Mode I²C

Devices，0 to 400-kHz Clock Frequency

 Low RON Switches

̅̅̅̅̅̅̅̅̅̅

the TPT29548A to recover. Pulling RESET low resets

the I²C state machine and causes all the channels to

be deselected, as does the internal power-on reset

function.

The pass gates of the switches are constructed such

that the VCC terminal can be used to limit the

maximum high voltage, which will be passed by the

TPT29548A. This allows the use of different bus

voltages on each pair, so that 2.5 V, or 3.3 V parts

can communicate with 5 V parts, without any

additional protection. External pull-up resistors pull

the bus up to the desired voltage level for each

channel. All I/O terminals are 5.5 V tolerant.

 Latch-Up performance exceeds 200 mA per JESD

 ESD Protection Exceeds JESD 22

− 3.5 kV Human-Body Model

− 1.5 kV Charged-Device Model

Applications

TPT29548A is available in TSSOP24 and QFN24L

package, and is characterized from −40°C to +85°C.

 Servers/Storages

 Routers (Telecom Switching Equipment)

 Factory Automation

 Products With I²C Slave Address Conflicts (e.g.,

Multiple, Identical Temp Sensors)

Function Block Diagram

www.3peak.com

Rev.B1

1 / 18

12 3 4 5 6 7...18

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