ISL78840ASRH

The ISL78840ASRH is a high performance, radiation hardened drop-in replacement for the popular 28C4x and 18C4x PWM controllers suitable for a wide range of power conversion applications including boost, flyback, and isolated output configurations. Its fast signal propagation and output switching characteristics make this an ideal product for existing and new designs.

The features of ISL78840ASRH are as follows: (1)Electrically Screened to DSCC SMD # 5962-07249; (2)QML Qualified Per MIL-PRF-38535 Requirements; (3)1A MOSFET Gate Driver; (4)90A Typ Start-up Current, 125A Max; (5)35ns Propagation Delay Current Sense to Output.

The electrical characteristics of the ISL78840ASRH are: (1)START Threshold: 7.0V; (2)STOP Threshold: 6.6 V; (3)Hysteresis: 0.4 V; (4)Start-up Current, IDD: 90 A at VDD < START Threshold, 300  A at VDD < START Threshold, 100krad; (5)Operating Current, IDD: 2.9 mA; (6)Operating Supply Current, ID: 4.75 mA at Includes 1nF GATE loading; (7)Overall Accuracy: 5.000 V at Over line (VDD = 9V to 13.2V),; (8)load 1mA and 10mA, temperature.