Analog Devices Inc./Maxim Integrated MAX17601ATA+T

Overview

MAX17601ATA+T from Maxim Integrated is a dual-channel, noninverting MOSFET gate driver IC designed for high-frequency power switching applications. It delivers 4A peak sink/source current per channel, features 12ns typical propagation delay with matched delays between channels, and operates from a +4V to +14V single supply. It is used in synchronous buck converters and half-bridge motor drivers where fast, shoot-through–free gate control is required.

For engineers reviewing the MAX17601ATA+T datasheet, MAX17601ATA+T pinout, MAX17601ATA+T application, or MAX17601ATA+T equivalent, this page provides verified technical context, package-specific pin functions, real-world timing behavior under load, thermal design guidance for TDFN-EP, and validated alternative options for TTL-input dual noninverting drivers.

Technical Context

The MAX17601ATA+T implements dual independent predriver stages with internal level-shifting logic, UVLO (3.5V threshold), and shoot-through prevention via built-in break-before-make (BBM) circuitry. Its TTL-compatible inputs accept 0.8V/2.1V thresholds and tolerate up to +16V transients regardless of VDD.

Each output stage uses complementary BiCMOS drivers capable of 4A peak current into capacitive loads, with 6ns rise and 5ns fall times into 1nF at VDD = 14V. Propagation delays are tightly matched (≤8ns skew between channels), enabling precise timing in phase-shifted topologies.

Key Specifications

Pinout & Package

MAX17601ATA+T is housed in an 8-pin TDFN-EP (3mm × 3mm) package with exposed pad (EP) internally connected to GND. The EP must be soldered to a PCB thermal pad for optimal heat dissipation and noise immunity; it is not a substitute for the dedicated GND pin (Pin 3).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual noninverting MOSFET driver applications.

Compared with UCC27524ADR and LM5112MYX/NOPB, the MAX17601ATA+T uniquely combines TTL compatibility, dual enable inputs, 42°C/W θJA in TDFN, and guaranteed 12ns delay - making it optimal for compact, high-reliability, logic-direct DC-DC and motor control modules.

Availability

MAX17601ATA+T is available at Aetrix Electronics and suitable for switch-mode power supplies, DC-DC converters, and motor control systems requiring stable component supply across automotive, industrial, and telecom end markets.

Supply support for MAX17601ATA+T 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

Maxim Integrated, now part of Analog Devices, designs precision analog, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.

The MAX17600–MAX17605 family was engineered specifically for high-frequency, high-current gate driving in space-constrained power converters - emphasizing matched timing, shoot-through immunity, and robust transient tolerance.

FAQ

What is the maximum capacitive load the MAX17601ATA+T can drive while maintaining 12ns propagation delay?

The MAX17601ATA+T maintains ≤12ns typical propagation delay into loads up to 1nF at VDD = 12V. For 4.7nF loads, delay increases to ~14ns; for 10nF, it reaches ~16ns. To preserve timing integrity in high-frequency designs, keep total gate + Miller capacitance ≤1nF or add series gate resistors to damp ringing without significantly degrading edge speed. The MAX17601ATA+T's 4A drive strength ensures usable edges even at 10nF, but timing-critical applications should verify delay under actual load conditions.

Does the MAX17601ATA+T require external pull-up resistors on ENA and ENB pins?

No - the MAX17601ATA+T integrates 100kΩ internal pull-up resistors on both ENA and ENB pins to VDD. Leaving these pins unconnected enables both channels by default. External pull-ups are unnecessary unless a stronger pull-up (e.g., for noise immunity in high-EMI environments) or active-low enable logic with open-drain sources is required. For standard operation, connect ENA/ENB directly to GND to disable a channel or leave floating for always-on behavior.

Can the MAX17601ATA+T drive both high-side and low-side N-channel MOSFETs in a half-bridge configuration?

Yes - the MAX17601ATA+T can drive low-side N-MOSFETs directly. For high-side N-MOSFETs, it requires a floating supply (e.g., bootstrap capacitor or isolated DC-DC) referenced to the switch node, as the device lacks high-side level-shifting circuitry. Its dual noninverting outputs and matched delays make it ideal for low-side control or paired with dedicated high-side drivers like the MAX17600 series' inverting variants for complementary drive. Always implement external shoot-through protection (e.g., RC dead-time networks) when combining with external high-side solutions.

What is the purpose of the exposed pad (EP) on the MAX17601ATA+T TDFN package?

The exposed pad (EP) on the MAX17601ATA+T is internally connected to GND and serves as the primary thermal and low-inductance ground path. It must be soldered to a dedicated PCB thermal pad with ≥4 thermal vias to an internal ground plane. Relying solely on Pin 3 (GND) without EP connection risks thermal overload (derating begins at 70°C ambient) and increased ground bounce during 4A switching events. The EP does not replace Pin 3 - both must be connected to the same low-impedance ground net for safe, reliable operation.

How does the MAX17601ATA+T handle undervoltage conditions on VDD?

The MAX17601ATA+T incorporates an undervoltage lockout (UVLO) circuit that holds both outputs low when VDD falls below 3.5V (typical threshold), with 200mV hysteresis to prevent oscillation near the trip point. This ensures MOSFETs remain off during brownout or startup, avoiding partial turn-on and thermal stress. Once VDD rises above 3.85V, the device resumes normal operation after a 120µs delay - long enough to stabilize bulk capacitance but short enough for fast system recovery. This behavior is fully specified over -40°C to +125°C.