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
Parrot takes instant 3D mapping to the sky
March 03, 2015
On nVidia's booth at embedded world, a robot arm was swinging a stereo camera assembly, in a drone-like fashion, demonstrating ...
European chip market contracted in January
Finely patterned OLEDs prove key to organic lasers
Intel selects ST micromirrors for human-machine interface
Printed OLEDs make large advertising more communicative
IKEA and Samsung back Qi wireless charging advance
March 03, 2015
Global home furnishings retailer IKEA has breathed new life into the wireless charging market with the launch of Qi-powered ...
Motor drive analyser leverages 8-channel, high-definition oscilloscope
Tronics offers to license MEMS processes to foundries
OmniVision, eyeSight, push gesture towards the smartphone
- High Performance Portable DC Bench Power Supply: Save Money and Free Up Bench Real Estate by Building Your Own
- Software-Defined Radio Handbook
- A Four-Quadrant DC/DC Switching Regulator Smoothly Transitions from Positive to Negative Output Voltages for FPGA and Other Applications
- LED Driver with Integrated Spread Spectrum Reduces EMI without Adding Flicker
InterviewInfineon: CAN FD success goes at the expense of FlexRay
The faster version of the venerable CAN bus, CAN FD is currently taking off at several carmakers. Infineon's Thomas Böhm, Head of Body / Automotive, believes this could well go at the expense of FlexRay. ...
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
To ensure you have a good start in 2015, Freescale is giving away five of its QorIQ TWR-LS1021A Tower system modules, worth USD269 each, for EETimes Europe's readers to win.
The module is the most feature-rich and high-performance Tower system offered by Freescale, enabling compatibility and interoperability with the growing list of Tower expansion modules, offering an easily accessible...MORE INFO AND LAST MONTH' WINNERS...
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.