NGD4300DJ

Overview

The NGD4300DJ is a half-bridge gate driver manufactured by Nexperia, designed for driving high-side and low-side N-channel MOSFETs in synchronous buck or half-bridge configurations. It features a single driver with one output, housed in an SO-8 surface-mount package. The device supports a supply voltage range of 8 V to 17 V and delivers a peak output current of 4 A. It accepts non-inverting CMOS and TTL logic inputs. Key timing parameters include a maximum propagation delay of 30 ns, rise time of 4 ns, fall time of 3.5 ns, and maximum on/off delays of 7 ns each. The component operates within a temperature range of -40°C to +125°C.

Feature Summary

• Provides robust gate drive capability for high-side and low-side N-channel MOSFETs in half-bridge and synchronous buck applications
• Accepts input control signals compatible with 2.5 V, 3.3 V, and 5 V TTL and CMOS logic levels
• Integrates independent undervoltage lockout (UVLO) circuits for both high-side and low-side outputs to disable drivers during insufficient power conditions

Applications

• Synchronous buck converters
• Half-bridge configurations
• Current feedback push-pull converters
• Dual switch forward power converters
• Class D audio amplifiers

Procurement Notes

Verify the specific suffix 'DJ' against the manufacturer's official datasheet to confirm the exact packaging configuration, such as reel or cut tape specifications. Ensure that the SO-8 package variant matches the design requirements. Confirm RoHS compliance status and check for any recent product change notices regarding assembly sites or material changes before finalizing procurement orders.

Selection Notes

Select this component when a single-channel half-bridge driver with 4 A peak current is required for N-channel MOSFETs. It is suitable for designs needing compatibility with standard 2.5 V to 5 V logic interfaces without external level shifting. Consider the SO-8 package for space-constrained PCB layouts where thermal performance and lead length are manageable. Verify that the 30 ns maximum propagation delay meets the switching frequency requirements of the target application.

Part Context

The NGD4300DJ belongs to the NGD4300 series of dual MOSFET gate drivers from Nexperia. This family is engineered for high-performance power conversion systems, offering integrated bootstrap diodes for high-side drive generation up to 120 V rail voltages. The series emphasizes low power consumption and precise signal path matching between high-side and low-side outputs to minimize shoot-through risks in bridge configurations.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.