news digest ♦ Telecoms
Renesas has revealed a new device which can be used a number of applications. The PS9905 can employed as an IGBT, power MOSFET gate driver and also as a Industrial and solar inverter.
Equipped with a MOSFET-MOSFET output, the PS9905 allows efficient and safe IGBT control. A galvanic isolated AlGaAs 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 °C to +110 °C.
RFSW6131
The device has a symmetric topology and RFMD boasts that it offers excellent linearity and power handling capability. The module is 3V and 5V positive logic compatible and features LF to 6000MHz operation. At 2GHz , it has a low loss of 0.5dB at and an isolation of 27dB .
The RFSW6131 has a high IP3 of 56dBm P0.1dB: 31dBm (at 5V, and 2.2GHz). and comes in a 1.5mm x 1.5mm package.
The device is suited to cellular, 3G, LTE infrastructure applications and WiBro, WiMAX, LTE. It can also be used in wireless backhaul and in GMSK, QPSK, DQPSK and QAM modulation.
The RFSW6131 is currently available in production quantities. Pricing begins at $0.60 each for 1000 pieces.
Renesas markets hardy optocoupler
The device features an aluminium gallium arsenide LED and is suited to harsh application environments like motor control, measuring instruments as well as factory automation
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www.compoundsemiconductor.net June 2012
PS9905
The new IC-output optocoupler has an extra-long creepage distance of 14.5 mm and can be used in 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 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, very good isolation properties are achieved. The device is specified for an isolation voltage of 7500 Vrms.
The module complies with the international safety standards such as UL, CSA, and VDE (optional) making it ideally suited for deployment in harsh application environments like motor control, measuring instruments as well as factory automation.
The PS9905 optocoupler has a high common- mode transient rejection of 25 kV/µs (MIN.) allowing an error free transmission of the control signals
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