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Texas Instruments TPS60402 | Demoboard TIDA- 010018
Isolated power and data interface for low-power applications reference design
Overview
| Topology | Buck Converter |
| Input voltage | 4.4-5.25 V |
| Output 1 | 3.3 V / 0.01 A |
| IC revision | 2 |
Description
This reference design provides power and data isolation for low and ultra-low power applications. Generating isolated and non-isolated power rails with a high efficiency and containing a power efficient isolated data interface for three forward- plus one reverse-direction channels. Targeted applications are isolated loop powered 4- to 20-mA transmitters. This design can be adapted to other applications requiring highly-efficient power conversion and isolated data transmission while being powered from sources with a limited current capability.
Features
- Power input 5 VDC, source needs to be current limited to < 30 mA
- Ultra-low power, isolated data interface
- 5, 16, 130 μA per channel at 10, 100, 1000 kbps
- 3 forward-channels, 1 reverse-channel
- Isolated 10-mA DC/DC Converter Efficiency up to 86.5%
- 3.3-V, 10-mA buck converter on non-isolated side Efficiency up to 93%, VOUT ripple < 15 mVpp
- 3.3-V, 10-mA buck converter on isolated side Efficiency up to 92%, VOUT ripple < 20 mVpp
- 3.0-V, 10-mA LDOs IQ = 16 μA @ Iout = 1 mAPSRR > 36 dB at ≤ 200 kHz
Typical applications
- Temperature transmitter / Flow transmitter / Pressure transmitter
More information
Products
Order Code | Datasheet | Downloads | Status | Product series | Pins | Type | Mount | L(mm) | H(mm) | IR(A) | Working Voltage(V (AC)) | Operating Temperature | Color | Gender | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WR-PHD Jumper, 1, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Jumper | Pins1 | – | – | Length2.44 mm | – | Rated Current3 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +125 °C | ColorRed | GenderJumper | PackagingBag | |||
 | WR-PHD Pin Header - Single, 2, Straight | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | Pins2 | TypeStraight | MountTHT | Length5.08 mm | – | Rated Current3 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | – | GenderPin Header | PackagingBag | |||
 | WR-PHD Pin Header - Single, 3, Straight | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | Pins3 | TypeStraight | MountTHT | Length7.62 mm | – | Rated Current3 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | – | GenderPin Header | PackagingBag | |||
 | WR-PHD Pin Header - Single, 4, Straight | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | Pins4 | TypeStraight | MountTHT | Length10.16 mm | – | Rated Current3 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | – | GenderPin Header | PackagingBag | |||
 | WR-PHD Socket Header - Dual, 20, Straight Type 2 | Downloads7 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Socket Header - Dual | Pins20 | TypeStraight Type 2 | MountSMT | Length25.9 mm | – | Rated Current3 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | – | GenderSocket Header | PackagingTape and Reel with Cap | ||
 | 750314839 | Transformer, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Transformer | – | – | MountSMT | Length9.78 mm | Height10.54 mm | – | – | Operating Temperature -40 °C up to +100 °C | – | – | PackagingTape and Reel |