Analog Devices Inc. ADP3417JR-REEL

Overview

ADP3417JR-REEL from Analog Devices is a dual bootstrapped N-channel MOSFET driver optimized for synchronous buck converters, featuring 1.75–3.0 Ω high-side sourcing resistance, 20–30 ns low-side fall time into 3 nF load, and integrated overlap protection to prevent shoot-through. It drives upper and lower MOSFETs in CPU core power supplies with single PWM input control.

For engineers reviewing the ADP3417JR-REEL datasheet, ADP3417JR-REEL pinout, ADP3417JR-REEL application, or ADP3417JR-REEL equivalent, this page delivers verified timing parameters, bootstrap circuit requirements, nonoverlap delay behavior, thermal limits, and SOIC-8 package implementation guidance for high-efficiency DC/DC design.

Technical Context

The ADP3417JR-REEL integrates two independent gate drivers: DRVH uses BST–SW floating supply for high-side N-MOS operation up to 25 V SW node voltage, while DRVL references VCC–PGND for low-side drive. Propagation delays are asymmetric-tpdlDRVH = 15–35 ns, tpdhDRVL = 30–60 ns-to enforce controlled turn-off sequencing.

Its overlap protection circuit monitors SW node voltage (enabling DRVL only after SW falls to ~1 V) and enforces a fixed 50 ns delay before DRVH activation post-DRVL turn-off. This dual-mechanism prevents simultaneous conduction under varying temperature, load, and gate charge conditions.

Key Specifications

Pinout & Package

ADP3417JR-REEL is housed in an 8-lead narrow-body SOIC package (JEDEC MS-012AA, R-8), with exposed pad omitted and NC pin (Pin 3) unconnected. Thermal performance relies on PGND pin soldering and PCB copper pour under the package body.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual N-channel MOSFET driver applications.

Compared with IR2110PbF and LM5113MMX/NOPB, ADP3417JR-REEL uniquely integrates SW-sensed overlap protection and single-PWM control in an SOIC-8 package-making it optimal for cost-sensitive, high-efficiency, low-voltage synchronous buck designs where shoot-through prevention must be hardware-guaranteed.

Availability

ADP3417JR-REEL is available at Aetrix Electronics and suitable for multiphase CPU power supplies, single-rail synchronous buck converters, and VRM-compliant core voltage regulators requiring stable component supply and long-term production continuity.

Supply support for ADP3417JR-REEL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, communications, and power management markets since 1965.

The ADP3417JR-REEL belongs to Analog Devices' power management driver portfolio, engineered specifically for high-frequency synchronous buck conversion in computing and embedded power applications where reliability, timing accuracy, and integration reduce system-level design risk.

FAQ

What is the maximum allowable voltage difference between BST and SW pins on the ADP3417JR-REEL?

The ADP3417JR-REEL specifies a BST-to-SW absolute maximum rating of –0.3 V to +15 V. Exceeding +15 V risks permanent damage to the high-side driver stage. In practice, BST voltage is typically V_IN + V_C(BST), so selecting a 25 V-rated bootstrap capacitor and 15 V diode ensures margin against transients. This limit is critical during startup and light-load conditions where SW ringing may occur.

Does the ADP3417JR-REEL require external dead-time control circuitry?

No, the ADP3417JR-REEL implements hardware-based overlap protection without external components. It monitors the SW pin voltage to delay DRVL activation until SW falls below ~1 V, and inserts a fixed 50 ns delay before DRVH activation after DRVL turn-off. This eliminates need for external RC networks or controller-level dead-time programming-reducing design complexity and improving robustness across temperature and load variations.

Can the ADP3417JR-REEL drive both high-side and low-side MOSFETs with a single PWM input?

Yes, the ADP3417JR-REEL accepts one CMOS-compatible PWM input (IN) and generates complementary gate drive signals: DRVH follows IN in phase, while DRVL is inverted 180° out-of-phase. This architecture simplifies controller interface and eliminates timing skew between high/low-side edges-critical for minimizing shoot-through in synchronous buck topologies.

What is the recommended bootstrap capacitor value for the ADP3417JR-REEL in a 250 kHz, 65 A CPU VRM?

For a 250 kHz, 65 A VRM using an IRF7811 high-side MOSFET (Q_GATE ≈ 20 nC) and allowing 200 mV droop, the ADP3417JR-REEL requires C_BST = Q_GATE/ΔV_BST = 100 nF. A 100–220 nF X7R ceramic capacitor rated ≥25 V is recommended-placed close to BST and SW pins with short traces to minimize ESR-induced voltage sag during high-frequency switching.

Is the NC pin (Pin 3) on the ADP3417JR-REEL internally connected or should it be left floating?

Pin 3 of the ADP3417JR-REEL is designated NC (No Connect) in the official pin function table and has no internal bond wire or circuit connection. It must remain unconnected on the PCB-neither tied to ground, VCC, nor any other net. Leaving it floating avoids unintended coupling or parasitic paths that could affect noise immunity or thermal performance in high-density layouts.