Product category:
Power Supply ICs and Controllers
News Release from: Texas Instruments (April 2001-March 2006) | Subject: DRV590/1/2
Edited by the Electronicstalk Editorial
Team on 07 December 2001
Cooler drive for thermoelectric coolers
Texas Instruments has released two high-efficiency PWM power drivers and an H-bridge that eliminate the need for large heatsinks required by most linear solutions for driving TEC elements.
Providing the industry's smallest and most efficient solution for driving thermoelectric cooler elements and biasing laser diodes in optical networking applications, Texas Instruments has released two high-efficiency PWM power drivers and an H-bridge that eliminate the need for large heatsinks required by most linear solutions The DRV59x family allows designers to shrink their solutions more than 80 percent compared to some discrete implementations
This article was originally published on Electronicstalk on 8 Nov 2004 at 8.00am (UK)
Related stories
Data buffer has dual multiplexer
Texas Instruments has introduced the industry's first 0- to 4-Gbps data buffer/signal conditioner with a dual multiplexer.
Reference design for wireless optical comms
A new technology from Texas Instruments dramatically cuts the cost and complexity of bringing the high-speed datarates of optical networking to end users.
In addition to eliminating large mosfets and heat sinks, these high-efficiency devices only take up a small 9mm by 9mm footprint in the quad flatpack package.
"To save even more area, the new devices will soon be available in extremely small 4mm by 4mm and 5mm by 5mm MicroStar Jr BGA packages," said Dave Skinner, applications and product developer, TI TEC Driver Products.
"The need to enable more channels per rack is driving down the size of optical transponders and our solution satisfies that need".
The DRV590 and DRV591 (+/-1.2 and +/-3A, respectively) high-efficiency PWM power drivers possess a 2.8 to 5.5V voltage supply range.
The DRV592, a +/-3A high-efficiency H-bridge, may be driven from any external PWM generator with TTL logic outputs, such as a DSP, a microcontroller or an FPGA.
All devices are internally protected against overheating and current overloads Logic-level fault indicators signal when the device junction temperature has reached approximately 130C, allowing for system-level shutdown before the power driver's internal thermal shutdown circuitry activates.
The fault indicators also signal when an overcurrent event has occurred.
If the overcurrent circuitry is tripped, in either device, it will automatically reset when the device returns to its normal operating range.
The DRV590 has four internal gain settings that are controlled by two input terminals, GAIN1 and GAIN0, while the DRV591 is optimally fixed at 2.34V/V.
The DRV590, DRV591 and DRV592 are available now from TI and its authorised distributors in a standard PowerPAD surface-mount 20-pin small outline package (SOIC).
The DRV591 and DRV592 are available in a PowerPAD surface mount 32-pin plastic quad flatpack (PQFP).
Suggested resale pricing in quantities of 1000 is $6.87 for the DRV590, $12.34 for the DRV591 and $11.89 for the DRV592.
• Texas Instruments (April 2001-March 2006): contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Search the Pro-Talk network of sites
