DC to DC Power Supplies (Converters)
Isolated DC/DC Converter works with isolated 2 W power supplies.
Press Release Summary:
Model TPS55010, 2 W, 6 V primary-side feedback transformer driver features Fly-Buck topology to provide isolated power and remove ground loops from analog circuitry and communication interfaces, from unregulated 3.3 or 5 V input. Output voltage is set by resistor divider and transformer turns ratio. Providing up to 85% efficiency, unit has switching frequency range of 100 kHz to 2 MHz, and operates over temperature range of -40 to +150°C. It comes in 3 x 3 x 1 mm monolithic QFN package.
Original Press Release:
TI Introduces Isolated DC/DC Converter for Low-Noise 2-W Power Supplies
2-W, 6-V isolated Fly-Buck(TM) converter supports noise-sensitive data acquisition and interface power applications
DALLAS - Texas Instruments Incorporated (TI) (NYSE: TXN) today introduced a high-efficiency, primary-side feedback transformer driver for isolated 2-W power supplies, which are used in programmable logic controllers, industrial automation and other noise-sensitive data acquisition designs. For product details, SPICE model, design tools and evaluation modules visit: www.ti.com/tps55010-pr.
The high-efficiency TPS55010 with integrated FETs features a simple and unique Fly-Buck topology to provide isolated power and remove ground loops from analog circuitry and communication interfaces, such as RS-485 and RS-232, from an unregulated 3.3-V or 5-V input. The 2-W converter does not need an optocoupler, and provides up to 85-percent power efficiency.
Power management for high-speed digital isolation
The isolated DC/DC converter can be used with high-speed digital isolators, such as the ISO721 and ISO722, and isolated transceivers like the ISO1176 isolated Profibus device, the ISO35 isolated 3.3-V RS-485 device and the ISO3086 isolated 5-V RS-485 transceiver. In addition to the TPS55010, TI's popular 1-W DCP010505 open-frame power module with integrated transformer provides simple isolated power conversion and ground-loop elimination.
Key features and benefits of the TPS55010:
- 2-W isolated power converter with integrated FETs supports variety of industrial designs. Output voltage is set by a resistor divider and the transformer turns ratio.
- Wide switching frequency range (100 kHz to 2 MHz) offers design flexibility to optimize efficiency and space. Frequency can be synchronized to a master clock to reduce noise in sensitive data acquisition circuitry.
- Supports -40 degrees C to +150 degrees C operating junction temperature and comes in a space-saving, thermally enhanced 3-mm x 3-mm x 1-mm monolithic QFN package.
Availability and pricing
The TPS55010 is available in volume now from TI and its authorized distributors in a 16-pin, 3-mm x 3-mm thermally enhanced QFN package. Suggested resale pricing is $1.65 in 1,000-unit quantities. The DCP010505 plug-in module comes in a 7-pin SIP package with a suggested resale price of $5.35 in 1,000-unit quantities.
Find out more about TI's power and interface products and design tools:
- Order the TPS55010 development kit (TPS55010EVM-009) for isolated power.
- Check out the TI E2E(TM) Community to correspond with TI power design engineers.
- Power Stage Designer(TM) software design tool:
www.ti.com/powerstagedesigner-pr.
- SWIFT(TM) DC/DC step-down converter portfolio: www.ti.com/swift-pr.
- Isolated interface solutions: www.ti.com/interface-pr.
About Texas Instruments
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Trademarks
Fly-Buck, Power Stage Designer, SWIFT and TI E2E are trademarks of Texas Instruments. All trademarks and registered trademarks are property of their respective owners.
SOURCE
Texas Instruments Incorporated
Web Site: www.ti.com
