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
Li-Fi communication module wirelessly transfers data at 1-Gbps
October 31, 2014
The Fraunhofer Institute for Photonic Microsystems IPMS in Dresden has developed communication modules that can wirelessly ...
Digital Lumens raises USD23m for intelligent LED lighting solution
Bosch brings electronic fuel system, connectivity to Asian motorbikes
NXP extends NFC ecosystem to the car
Japan's MegaChips to buy MEMS maker SiTime
Freescale CEO: 'IoT isn't just buzz'
October 30, 2014
Coming after the solid third quarter results that produced higher operating margins and improving cash flow, Freescale Semiconductor's ...
3D prints world's best inverter
Research project significantly improves electronics reliability
Netscout Acquires Communications Businesses From Danaher
- Wireless Power User Guide
- Secure is the New Smart
- 5 Best Practices for Designing Flexible Test Stations
- Intelligent PLCs Expand the Internet of Things
InterviewFreescale CEO: 'IoT isn't just buzz'
Coming after the solid third quarter results that produced higher operating margins and improving cash flow, Freescale Semiconductor's CEO Gregg Lowe had every reason to be chipper and lively when EE Times ...
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, Oscium is giving away three of its iMSO-204L dual analogue iOS oscilloscopes, worth USD400 each. Designed with native Lightning compatibility, the iMSO-204L transforms the iPad, iPhone, and iPod touch into an ultra-portable, two-channel oscilloscope.
Since Apple changed its connector, Oscium has been working to bring native compatibility to its customers. The third generation...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.