1-Wire Two-way level converter unit (from 1.8V to 5V) Reference design


Posted on Feb 4, 2014

The designer requires 1 Wire host computer IO framework of adopting the drain and opening a way, work in 1. 8V. Majority 1 Wire is unable to work in 1. 8V from the device. Note of this application has recommended realizing 1. 8V 1 Wire host computer and 5V 1 Wire reference design RD from level switch between the devices. This is cons


1-Wire Two-way level converter unit (from 1.8V to 5V) Reference design
Click here to download the full size of the above Circuit.

ulted and is designed to drive typical 1 Wire from the device, make use of MAX3394E level converter unit to realize level switch. FPGA, microprocessor, DS2482-100 and DS2480B are 1 common Wire host computer device. 1-Wire/iButton Produced from the device by Maxim, the typical working voltage of this serial devices is from 2. 8V to 5. 25V. In the past, 1 traditional Wire host computer and from the logic of adopting 5V drain to open a way of the device. Now, the designer needs 1 Wire host computer IO to offer the logic of opening a way of drain of 1. 8V. And the majority 1 Wire can work from the device in 5V Safety Ground, the overwhelming majority in them is unable to work in 1. 8V. Need a two-way level converter unit to overcome this kind of restriction. This reference design RD Adopt Maxim MAX3394E two-way level converter unit, use for solve the problem that in this kind of application. MAX3394E two-way level converter unit adopts 8 pins, 3mm x 3mm TDFN to capsulate. Rely on its reinforced circuit of internal pendulum rate, but is used in great condensive load to drive ideally. 1 Wire is usually greater than 500pF from the condensive load of the device. VCC I/O pin of MAX3394E has 15kV HBM Human Body Model Electrostatic protection, offer protection for 1 Wire host computer. 1 Wire bus line is usually used for connecting the external world, it is a basic demand that HBM protects. Recommend pulling upward the resistance R3,...




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Hall effect sensor as Toilet Tank Refiller
3-30 V/2.5 A Stabilized variable power supply
autopilot with rev 2.2 board
Back emf motor speed control
Precision Light Alarm With Hysteresis Circuit
Voice Identifier Circuit
Arduino Knock
USB Powered Stereo PC Multimedia Speaker
LM12 - High Power Amplifier circuit Schematic Diagram
switching power supply stability cipher scheme
strobe light controller
100w audio amplifier
Electromagnetic field detectors
USB Interface Board Tutorial Using PIC18F4550



Top