NCP4306AAHZZZADR2G

Power Supply Controllers, Monitors Overview

The NCP4306AAHZZZADR2G is a secondary side synchronous rectification driver designed for high-efficiency switch-mode power supplies. It supports Flyback, Forward, and Half Bridge topologies with a single output. The device operates at a switching frequency of 1 MHz, delivering an output current of 7 A and a voltage of 10 V. It functions within a supply voltage range up to 35 V and consumes 12 mA of operating current. The component features rise and fall times of 60 ns and 25 ns respectively. It is housed in an SOIC-8 package and operates between -40°C and +125°C.

Power Supply Controllers, Monitors Feature Summary

• Features a precise 0 mV turn-off comparator to support low-current operation with low Rds(on) MOSFETs.
• Includes adjustable minimum on-time and off-time protection settings.
• Supports operation in both positive and negative branches of the circuit.

Power Supply Controllers, Monitors Applications

• High-efficiency SMPS topologies
• Flyback converter designs
• Forward converter implementations
• Half bridge power supplies

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix ZZZADR2G against official onsemi documentation to confirm tape-and-reel packaging specifications and RoHS compliance status. Ensure the SOIC-8 package variant matches the required thermal and mechanical constraints for the target application design.

Power Supply Controllers, Monitors Selection Notes

Select this component for applications requiring secondary side synchronization in Flyback or Forward converters. The 1 MHz frequency allows for smaller magnetic components. Verify that the 7 A drive capability meets the gate charge requirements of the selected synchronous MOSFETs within the specified temperature range.

Power Supply Controllers, Monitors Part Context

This part belongs to the NCP4306 series of synchronous rectification controllers from onsemi. It is categorized under PMIC - Power Management ICs. The series includes variants with different packages such as DFN-8 and TSOP-6, offering flexibility for various PCB layout constraints while maintaining similar electrical performance characteristics.

Power Supply Controllers, Monitors Replacement Considerations

NCP4306ABHZZZAMNTWG (DFN-8 package)

Power Supply Controllers, Monitors FAQ

Can the NCP4306 operate in the negative branch?

Yes, the device is capable of operating in both positive and negative branches of the circuit.

What is the purpose of the 0 mV turn-off comparator?

It supports very low current flowing through the MOSFET, enabling the use of very low Rds(on) synchronous MOSFETs for improved efficiency.