IC manufacturers Texas Instruments

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Texas Instruments SN6505BDBVR | Demoboard TIDA-00300

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

Overview

TopologyOther Topology
Input voltage24 V
Switching frequency138-517 kHz
Output 15 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

  • Module designed such that it can be adopted with designs requiring isolation for Communication channels (Transformer and Motor / Generator protection)
  • Designed to Operate with 24V Auxiliary DC input (typical in smart grid)
  • Optimized design for Multiple Isolated & Non-Isolated Supplies using single Converter
  • Device capable of providing signal isolation of 2500 Vrms for 1 minute per UL and 4242 Vpk per VDE

Typical applications

  • Isolated power supply for CAN, RS-485, RS-422, RS-232, SPI, I2C, low-power LAN / Low-noise isolated USB supplies
  • Medical instruments
  • Process control / Precision instruments
  • Distributed supplies
  • Telecom supplies / Radio supplies

Products

Order Code Data­sheet Downloads Status Product seriesVINVOut1
(V)
IOut1
(A)
Type of Insulationfswitch
(kHz)
∫Udt
(Vµs)
NPRI : NSECL
(µH)
VT
(V (AC))
L
(mm)
W
(mm)
H
(mm)
Mount Samples
750315371SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WE-PPTI Push-Pull Transformers 4.5 - 5.5 V (DC) 5 1 Functional 400 - 700 8.6 1:1.1 72 2500 8.3 12.6 4.1 SMT
Order Code Data­sheet
750315371SPEC
Samples
Order Code Data­sheet Downloads Status Product seriesVINVOut1
(V)
IOut1
(A)
Type of Insulationfswitch
(kHz)
∫Udt
(Vµs)
NPRI : NSECL
(µH)
VT
(V (AC))
L
(mm)
W
(mm)
H
(mm)
Mount Samples