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
German company wins bid to crash cars in China
September 02, 2014
Numerous developments in the area of vehicle safety are significantly influenced as a result of current NCAP or NHTSA regulations ...
European semiconductors sales up 14.9% this year
EE Times' annual salary & opinion survey report
Toshiba announces image sensor strategy
DelfMEMS promotes CFO to CEO
Sensata to pay $1-bn for tire pressure sensor leader
September 01, 2014
Sensata Technologies Holding NV (Almelo, Netherlands) has announced it has reached an agreement to acquire the Schrader group ...
ADCs for high dynamic range – successive-approximation or sigma-delta?
Microchip in Pursuit of CSR
Samsung Funds III-V FinFETs in US Lab
- Power Modules: The New Super Power
- Flexible Performance for Network Security Appliances
- Digital Power Management Reduces Energy Costs While Improving System Performance
- Using RF Recording Techniques to Resolve Interference Problems
InterviewA question of Europe
Sir Peter Bonfield sits on the board and has advisory roles in many international companies and universities. With more than 45 years of experience in electronics, computers and communications, here he ...
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, Trinamic Motion Control is offering you to win one of four TMCM-1043 development kits for its highly integrated, NEMA 17-compatible TMCM-1043 stepDancer stepper motor module.
Offering designers an easy-to-use PC-based GUI that allows one-click modification of motor drive current, micro-stepping and other key parameters, the intuitive kits are custom designed and developed for...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.