Isolated power architecture reference design for communication and analog input/output modules
TIDA-00300
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Key Document

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

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TI Devices (46)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
DCH010515D  Miniature, 1W, 3kVDC Isolated DC/DC Converters  Offline & isolated DC/DC controllers & converters  Sample & Buy Not Available
DCH010515S  Miniature, 1W, 3kVDC Isolated DC/DC Converters  Offline & isolated DC/DC controllers & converters  Sample & Buy Not Available
DCP010505B  Miniature, 1W Isolated Unregulated DC/DC Converters  Offline & isolated DC/DC controllers & converters  Sample & Buy Not Available
DCR010505  Miniature, 1W Isolated Regulated DC/DC Converters  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
ISO1541  2.5-kVrms isolated unidirectional clock, bidirectional I2C isolator  Isolated interfaces  Sample & Buy View Design Kits & Evaluation Modules
ISO7141CC  4242-VPK Small-Footprint and Low-Power 3/1 Quad Channel Digital Isolator with Noise Filter  Isolation  Sample & Buy View Design Kits & Evaluation Modules
ISO7741  High-speed, low-power, robust EMC quad-channel digital isolator  Isolation  Sample & Buy View Design Kits & Evaluation Modules
ISOW7841  High-efficiency, low-emissions, reinforced digital isolator with integrated power  Isolation  Sample & Buy View Design Kits & Evaluation Modules
LM27762  Low-Noise Positive- and Negative-Output Charge Pump With Integrated LDO  DC/DC switching regulators  Sample & Buy View Design Kits & Evaluation Modules
LM4040  Precision micropower shunt voltage reference  Voltage references  Sample & Buy View Design Kits & Evaluation Modules
LM5017  7.5-100V Wide Vin, 600mA Constant On-Time Synchronous Buck Regulator  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
LM5160  LM5160 wide input 65V, 2A synchronous buck/Fly-Buck™ converter  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
LP2985-N  Micropower 150mA Low-Noise Ultra-Low-Dropout Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
OPA2376  Precision, Low Noise, Low Quiescent Current Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
REF3025  2.5V 50ppm/Degrees C, 50uA in SOT23-3 Series (Bandgap) Voltage Reference  Voltage references  Sample & Buy Not Available
REF3425  2.5-V low-drift low-power small-footprint series voltage reference  Voltage references  Sample & Buy View Design Kits & Evaluation Modules
SN6501  Low-noise, 350-mA, 410-kHz transformer driver for isolated power supplies  Isolation  Sample & Buy View Design Kits & Evaluation Modules
SN6505B  Low-noise 1-A, 420-kHz transformer driver for isolated power supplies  Isolation  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC1G14  Single Schmitt-Trigger Inverter  Buffer/driver  Sample & Buy View Design Kits & Evaluation Modules
TLV3012  Low-power Comparator with Voltage Reference  Amplifiers  Sample & Buy View Design Kits & Evaluation Modules
TLV704  24V Input Voltage, 150mA, Ultra-Low-Iq Low-Dropout (LDO) Regulators  Power management  Sample & Buy View Design Kits & Evaluation Modules
TLV713  150-mA low-dropout (LDO) regulator with foldback current limit for portable devices  Power management  Sample & Buy Not Available
TLV742P  200-mA small-size low-dropout (LDO) linear voltage regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
TLV760  100-mA, 30-V wide-VIN, fixed-output linear voltage regulator  Power management  Sample & Buy Not Available
TPS22917  Ultra-Low Leakage, 5.5-V, 2-A, 80-mΩ On-Resistance Load Switch  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS22944  5.5V, 0.2A, 500mΩ, 100mA Current Limit Load Switch  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS22960  5.5-V, 0.5-A, 435mΩ, 2-channel load switch with quick output discharge  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS3895  Single-Channel Ultra-Small Adjustable Supervisory Circuit With Active-High, Push-Pull Output  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS3897  Single-Channel Ultra-Small Adjustable Supervisory Circuit With Active-High Open-Drain Output  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS55010  2.95V To 6V Input, 2W, Isolated DC/DC Converter with Integrated FETS  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
TPS61220  Low Input Voltage, 0.7V Boost Converter with 5.5μA Quiescent Current  Step-up (boost)  Sample & Buy View Design Kits & Evaluation Modules
TPS62821  2.4V-5.5V input, 1A step-down converter With 1% Accuracy in 1.5x2mm QFN  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
TPS65130  Split-Rail Converter with Dual, Positive and Negative Outputs (300mA typ)  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS709  150-mA 30-V ultra-low-IQ wide-input low-dropout (LDO) regulator with reverse current protection  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS760  16-V, 50-mA, Low Iq, Low-Dropout Linear Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS763  Low-power low-IQ 150-mA low-dropout (LDO) linear regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS782  150-mA, ultra-low quiescent current (500 nA) low-dropout linear regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS7A16  60-V, 5-µA IQ, 100-mA low-dropout (LDO) voltage regulator with enable and power good  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS7A30  Vin -3V to -36V, -200mA, Ultra-Low-Noise, High-PSRR, Low-Dropout (LDO) Linear Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS7A3001-EP  Enhanced Product Negative Vin, -200mA, Ultra-Low-Noise, High-PSRR, Low-Dropout Linear Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS7A39  Dual, 150mA, Wide-Vin, Positive and Negative Low-Dropout (LDO) Voltage Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS7A47  36-V, 1-A, 4.17-μVRMS, RF low-dropout (LDO) voltage regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
TVS0500  5V flat-clamp surge protection device  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules
TVS1400  14V flat-clamp surge protection device  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules
TVS3300  33V Flat-Clamp Surge Protection Device  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules
UCC12050  500 mW, high-efficiency, 5 kVRMS isolated DC-DC converter  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
DCH010515D Download -
DCH010515S Download -
DCP010505B Download -
Download -
DCR010505 Download -
Download Download
ISO1541 Download Download
ISO7141CC Download Download
ISO7741 Download Download
Download Download
ISOW7841 Download Download
LM27762 Download Download
LM4040 Download
Download
Download
LM5017 Download Download
Download Download
LM5160 Download Download
Download -
LP2985-N Download Download
OPA2376 Download Download
Download Download
Download -
REF3025 Download Download
REF3425 Download Download
SN6501 Download Download
SN6505B Download Download
SN74LVC1G14 Download -
Download -
Download Download
Download Download
Download
Download Download
Download -
Download Download
Download Download
TLV3012 Download Download
Download Download
TLV704 Download Download
TLV713 Download Download
TLV742P Download Download
TLV760 Download Download
TPS22917 Download Download
TPS22944 Download Download
TPS22960 Download -
Download Download
TPS3895 Download Download
TPS3897 Download Download
TPS55010 Download Download
TPS61220 Download Download
TPS62821 Download Download
TPS65130 Download Download
TPS709 Download
Download
TPS760 Download Download
TPS763 Download
TPS782 Download
TPS7A16 Download Download
Download Download
TPS7A30 Download Download
Download
TPS7A3001-EP Download Download
TPS7A39 Download Download
TPS7A47 Download Download
TVS0500 Download Download
TVS1400 Download Download
TVS3300 Download

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Technical Documents

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guides (1)
Title Type Size (KB) Date
PDF 2575 17 Jun 2019
Design files (6)
Title Type Size (KB) Date
ZIP 9167 22 Sep 2019
ZIP 3201 22 Sep 2019
ZIP 876 22 Sep 2019
ZIP 477 22 Sep 2019
ZIP 1143 22 Sep 2019
ZIP 2051 22 Sep 2019
Related Tools & Software

Reference Designs  ( 3 )

Design Kits & Evaluation Modules  ( 11 )

Name Part Number Tool Type
High-Immunity, 5.7kVRMS Reinforced Quad-Channel 2/2 Digital Isolator Evaluation Module  ISO7842-EVM  Evaluation Modules & Boards 
ISO1042DW High Speed, High Performance, Robust EMC Isolated CAN Evaluation Module  ISO1042DWEVM  Evaluation Modules & Boards 
ISO1410DW high-performance, robust-EMC isolated RS-485 evaluation module  ISO1410DWEVM  Evaluation Modules & Boards 
ISO1412DW high-performance, robust-EMC isolated full-duplex RS-485 evaluation module  ISO1412DWEVM  Evaluation Modules & Boards 
ISO1500DBQ ultra-small package, isolated RS-485 evaluation module  ISO1500DBQEVM  Evaluation Modules & Boards 
ISO7741 high-speed, robust EMC quad-channel digital isolator evaluation module  ISO7741EVM  Evaluation Modules & Boards 
RS-485 full-duplex evaluation module  RS485-FL-DPLX-EVM  Evaluation Modules & Boards 
RS-485 half-duplex evaluation module  RS485-HF-DPLX-EVM  Evaluation Modules & Boards 
TCAN10xx controller area network (CAN) evaluation module  TCAN1042DEVM  Evaluation Modules & Boards 
TRS3122E: 1.8V RS-232 Transceiver Evaluation Module  TRS3122EEVM  Evaluation Modules & Boards 
TRS3122E: RS-232 transceiver BoosterPack™ Plug-in Module  BOOSTXL-RS232  Evaluation Modules & Boards 

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