Power chip

The NCP1236 is a new fixed-frequency current-mode controller with dynamic self-supply (DSS) capability. This device is pin compatible with the previous NCP12xx family. The DSS feature activates an internal startup current source to power the controller during transients, greatly simplifying the design of auxiliary power supplies and VCC capacitors. Due to frequency foldback, the controller has excellent energy efficiency at light load conditions while achieving very low standby power consumption. With internal frequency jittering, slope compensation, and a versatile latch input, this controller is ideal for converters where component cost is a key limiting factor. Additionally, the controller includes a novel high-voltage circuit that combines a start-up current source and an undervoltage detector capable of sensing input voltage from a rectified AC line or DC filtered bulk voltage. This high voltage sensing circuit is also used for over power protection purposes. Overpower protection, overload protection, and other protection features increase the safety and reliability of the end application.

4-A power module with 5.5-V max input voltage for military and rugged applications 7-TO-PMOD -55 to 125

The FAN3216 and FAN3217 dual 2-A gate drivers deliver high peak current pulses with short switching intervals for driving N-channel enhancement mode MOSFETs in low-side switching applications. They both provide TTL input thresholds. Internal circuitry holds the output low until the supply voltage is within operating range, providing undervoltage lockout. In addition, these drivers feature matched internal propagation delays between the A and B channels, making them suitable for applications requiring tightly clocked dual gate drivers, such as synchronous rectifiers. This also enables the parallel connection of the two drivers, effectively doubling the current capability to drive one MOSFET. The FAN3216/17 drivers incorporate the MillerDriveH structure for the final output stage. This bipolar MOSFET combination provides high current during the Miller plateau phase of the MOSFET turn-on/turn-off process to minimize switching losses while providing rail-to-rail voltage swing and reverse current capability. The FAN3216 provides two back drivers and the FAN3217 provides two non-back drivers. Both feature standard 8-pin SOIC encapsulation.

Quad MOSFET Driver 16-SOIC 0 to 70