NCP4306AADZZZAMNTWG

Power Supply Controllers, Monitors Overview

The NCP4306AADZZZAMNTWG is a secondary side synchronous rectification driver from onsemi, designed for high-efficiency SMPS topologies including Flyback, Forward, and Half Bridge. It operates with a switching frequency of 1 MHz and supports an output current of 7 A at 10 V. The device functions within a supply voltage range up to 35 V and draws 12 mA of operating current. It features a TSOP-6 package, operates between -40°C and +125°C, and exhibits rise/fall times of 60 ns/25 ns.

Power Supply Controllers, Monitors Feature Summary

• Provides precise turn-off comparator functionality to support low-current MOSFET operation.
• Features a strong MOSFET driver capable of handling low RDS(on) synchronous devices.
• Supports operation in both positive and negative branches without external synchronization.

Power Supply Controllers, Monitors Applications

• Secondary side synchronous rectification in flyback converters
• High-efficiency forward converter designs
• Half bridge power supply topologies

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix 'AAD' against official onsemi documentation to confirm pinout and electrical characteristics, as variations exist within the NCP4306 family. Ensure compatibility with the target SMPS topology and thermal requirements before integration. Cross-reference datasheet revisions to confirm RoHS compliance status.

Power Supply Controllers, Monitors Selection Notes

Select this component for applications requiring high efficiency and compact design due to minimal external components. Consider the 1 MHz switching frequency for size reduction. Verify that the TSOP-6 package fits the PCB layout constraints. Ensure the driver strength matches the gate charge requirements of the selected synchronous MOSFETs.

Power Supply Controllers, Monitors Part Context

Part of the NCP4306 series, which focuses on secondary side control for synchronous rectification. This series aims to replace traditional diodes to improve overall system efficiency. The NCP4306AAD variant specifically utilizes the TSOP-6 package format common in space-constrained power management designs.

Power Supply Controllers, Monitors Replacement Considerations

NCP4306DADZZDASNT1G

Power Supply Controllers, Monitors FAQ

Does the NCP4306 require external synchronization?

No, the NCP4306 can operate in CCM without external synchronization due to its very low propagation delay and strong driver capabilities.

What is the purpose of the turn-off comparator?

The precise 0 mV turn-off comparator supports very low current flowing through the MOSFET, even when very low RDS(on) synchronous MOSFETs are used.