IC manufacturers Texas Instruments

IC manufacturers (103)

Texas Instruments SN6501DBVR | Demoboard TIDA-00300 PSE2

Isolated power architecture reference design for communication and analog input/output modules

Overview

TopologyPush-Pull Converter symmetrical isolated
Input voltage5 V
Switching frequency250-620 kHz
Output 16 V
IC revisionE1

Description

This reference design provides a simple means through which to isolate I2C or SPI type communication lines. This is often required in Grid Infrastructure applications such as, protertion relays and circuit breakers, where high voltages are involved. This reference design provides the complete solution in which, both power isolation and signal isolation is handled

Features

  • Push-pull driver for small transformers
  • Single 3.3-V or 5-V supply
  • High primary-side current drive:
    • 5-V Supply: 350 mA (Max)
    • 3.3-V Supply: 150 mA (Max)
  • Low ripple on rectified output permits small outputcapacitors
  • Small 5-Pin SOT-23 Package

Typical applications

  • Isolated interface power supply for CAN, RS-485, RS-422, RS-232, SPI, I2C, Low-Power LAN
  • Industrial automation / Process control
  • Medical equipment

Products

Order Code
Data­sheet
Downloads
Status
Product series
VIN
VOut1(V (DC))
IOut1(A)
Type of Insulation
fswitch(kHz)
∫Udt(Vµs)
NPRI : NSEC
L(µH)
VT(V (RMS))
L(mm)
W(mm)
H(mm)
Mount
Samples
WE-PPTI Push-Pull Transformers, 5 V (DC), 5 V (DC)
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 5 V (DC)
Output Voltage 15 V (DC)
Output Current 10.65 A
Type of InsulationReinforced 
Switching Frequency 300 - 620
Voltage-µSecond10 Vµs
Turns Ratio1:1.3 
Inductance340 µH
Insulation Test Voltage5000 V (RMS)
Length9.14 mm
Width12.7 mm
Height7.62 mm
MountSMT