10 Application and Implementation

Note

Information in the following applications sections is not part of the TI component specification,

and TI does not warrant its accuracy or completeness. TI’s customers are responsible for

determining suitability of components for their purposes, as well as validating and testing their design

implementation to confirm system functionality.

10.1 Application Information

LSF performs voltage translation for open-drain or push-pull interface. Table 10-1 provides some consumer/

telecom interfaces as reference in regards to the different channel numbers that are supported by the LSF

family.

Table 10-1. Voltage Translator for Consumer/Telecom Interface

PART NAME

CH#

INTERFACE

LSF0101

1

GPIO

LSF0102

2

GPIO, MDIO, SMBus, PMBus, I2C

LSF0204

4

GPIO, SPI. MDIO, SMBus, PMBus, I2C, UART, SVID

LSF0108

8

GPIO, MDIO, SDIO, SVID, UART, SMBus, PMBus, I2C, SPI

10.2 Typical Applications

10.2.1 I2C PMBus, SMBus, GPIO, Application

EN

A1

A2

B1

B2

Vcc

Rpu

Rpu

SDA

SCL

Vcc

SDA

SCL

GND

Rpu

Rpu

A3

A4

B3

B4

ON

Off

1.8 V

enable signal

SW

SW

SW

SW

LSF0204

Vpu_2 = 1.8 V

Vrev_A = 1.8 V Vrev_B = 3.3 V

Vpu_1 = 3.3 V

Figure 10-1. Bidirectional Translation to Multiple Voltage Levels

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LSF0204, LSF0204D

SLVSCP5H – JULY 2014 – REVISED APRIL 2021

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