IC-output optocouplers with extra-long creepage distance of 14.5 mm
May 17, 2012 // Julien Happich
Renesas Electronics has launched two IC-output optocouplers with long-creepage-distance for applications such as industrial equipment employing the maximum commercial power supply voltage of 690 V or solar power generation systems employing high voltages of up to 1,000 V.
The PS9924 is a high-speed optocoupler supporting internal system communication speeds of 10 Mb/s and the PS9905 is an optically coupled 2.5 A IGBT driver featuring high speed switching performance and reduced output voltage drop due to MOSFET-MOSFET output form. The PS99XX Series devices are housed in a novel 8-pin Long-SDIP (LSDIP) package, which combines the small pin pitch (1.27 mm) with increased distance between the input and the output. Thus despite small space requirement outstanding isolation properties are achieved. In addition to a minimum external creepage distance of 14.5 mm, the device is specified for an isolation voltage of 7500 Vrms. The new devices comply with the international safety standards such as UL, CSA, and VDE (optional) making these well suited for deployment in harsh application environments like motor control, measuring instruments as well as factory automation.
The PS9924 is designed for 10 Mb/s bandwidth operations over an extended temperature range from -40 to +110°C. The detector IC of the “active low” type PS9924 features an open collector output and low operation voltages from 2.7 to 5.5V allowing a flexible circuit design. Thanks to specified maximum propagation delay time of 75ns and typical value of 40ns at 25°C, a communication bandwidth of 10Mb/s can be achieved. For safe operations in noisy industrial environment, the new Renesas optocoupler incorporates an internal shield providing common-mode transient rejection (CMR) of minimum 15 kV/µs and typical values of 20 kV/µs. The PS9924 delivers low power consumption characteristics that can be counted among the best in industry, making it ideal for applications requiring both high insulation voltage and low power consumption.
Equipped with a MOSFET-MOSFET output, the PS9905 allows an efficient and safe IGBT control. A galvanic isolated Gallium-Aluminum-Arsenic (GaAlAs) LED at input and a photo diode with signal processing circuitry and power amplifier at the output not only allow high switching speeds but also up to 2.5 A output current. The maximum propagation delay time (tPLH or tPHL) of 0.15µs is guaranteed over the complete operating temperature range from -40 to +110°C. The PS9905 optocoupler in 8-pin LSDIP (Long SDIP) package is characterized by very high common-mode transient rejection of 25 kV/µs (MIN.) allowing an error free transmission of the control signals through the isolation layer.
Visit Renesas Electronics Europe at www.renesas.euAll news
Forget iPhone: 4 megatrends in China’s smartphone market
August 28, 2014
Touch Taiwan, an international touch-panel and optical film exhibition that opened here Wednesday, is exposing some of Asia’s ...
Lantronix to fill digital classrooms' printing gap with PAL programme
Smart bicycle to feature eCall, GPS tracking and scheduled maintenance
Rohm opens MEMS foundry operation
Can rubber bounce back to power lithium-ion batteries?
Low noise rail-to-rail negative regulator with programmable current limit
August 28, 2014
The LTR3090 is a low noise single resistor programmable negative regulator based upon current reference architecture.
Study: Connected Car to spur competition between OEMs and IT players
BAE Systems develops 'smart skin' for aircraft
White-chip scale packages cut costs by 80 percent
- How to Protect & Monetize Android Apps
- Building Blocks for the Internet of Things
- New Linear Regulators Solve Old Problems
- Testing GPS with a Simulator
InterviewCEO interview: Tronics' Langlois makes moves in MEMS
Pascal Langlois has been CEO at Tronics for nine months. He discusses plans for the company and directions for the complex and diverse MEMS technology sector.
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Altium Ltd is offering EETimes Europe's readers the chance to win one TASKING VX-Toolset for ARM Cortex-M Premium Edition, normally licensed for 2.395 Euros, for ultra-rapid prototyping and code development around ARM Cortex-M based microcontrollers.
The VX-toolset for ARM is the first TASKING compiler suite to receive the Software Platform technology, which is seamlessly...Read more
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.