Analog Devices Inc./Maxim Integrated MAX5054BATA+

Overview

MAX5054BATA+ from Maxim Integrated is a dual high-speed MOSFET driver with TTL logic inputs, delivering 4A peak source/sink current per channel, 20ns typical propagation delay, and matched timing between inverting/noninverting inputs and across channels - designed for synchronous rectification in automotive-grade DC-DC converters operating from -40°C to +125°C.

For engineers reviewing the MAX5054BATA+ datasheet, MAX5054BATA+ pinout, MAX5054BATA+ application, or MAX5054BATA+ equivalent, this page delivers verified electrical specs, thermal package data, truth-table behavior, shoot-through prevention logic, and automotive temperature validation - all confirmed for the 8-pin TDFN-EP (3mm × 3mm) variant with exposed pad.

Technical Context

The MAX5054BATA+ implements break-before-make control logic to eliminate shoot-through during output transitions, reducing quiescent supply current at high switching frequencies. Its TTL-compatible inputs accept 2.1V VIH and 0.8V VIL thresholds with 0.3V hysteresis, and tolerate up to +18V input spikes independent of VDD.

Each channel features independent inverting (INA−/INB−) and noninverting (INA+/INB+) inputs, enabling flexible PWM control, active-high/low shutdown, or push-pull gate drive configurations. Propagation delay mismatch between channels is ≤1ns (VDD = 15V, CL = 10,000pF), and inverting/noninverting path mismatch is ≤2ns.

Key Specifications

Pinout & Package

MAX5054BATA+ uses an 8-pin TDFN-EP (3mm × 3mm) package with exposed pad thermally connected to GND. The package delivers θJA = 41°C/W and supports 1.9W power dissipation when soldered to a 4-layer PCB with adequate copper area.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX5055BASA+, MAX5054BATA+ offers superior thermal performance (41°C/W vs. 132°C/W) and dual-input flexibility, while LM5113SDX/NOPB provides higher peak current but sacrifices automotive qualification and input overvoltage robustness.

Availability

MAX5054BATA+ is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial motor drives, and server VRMs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX5054BATA+ 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 MAX5054–MAX5057 family targets high-frequency, high-power gate driving with emphasis on timing accuracy, shoot-through immunity, and automotive-grade reliability - specifically engineered for synchronous rectification in isolated and non-isolated SMPS.

FAQ

What logic voltage levels does MAX5054BATA+ accept?

MAX5054BATA+ accepts TTL logic levels: VIH = 2.1V (min), VIL = 0.8V (max), with 0.3V hysteresis. Inputs tolerate up to +18V regardless of VDD, enabling direct interface with 12V automotive control signals. This differs from the CMOS-input MAX5054AATA+, which uses VDD/2 thresholds.

Does MAX5054BATA+ support independent control of each channel's inverting and noninverting inputs?

Yes. MAX5054BATA+ provides four logic inputs - INA+, INA−, INB+, INB− - allowing fully independent configuration per channel. For example, INA+ can receive PWM while INA− serves as active-low fault shutdown, without external logic gates.

What is the maximum capacitive load MAX5054BATA+ can drive while maintaining 20ns rise/fall times?

At VDD = 15V, MAX5054BATA+ achieves 20ns rise/fall times into 5000pF. With 10,000pF, rise time increases to 32ns and fall time to 26ns. For loads >5000pF, adding a small series gate resistor (e.g., 2–5Ω) damps ringing without significantly degrading timing.

How is thermal performance affected by the exposed pad on MAX5054BATA+?

The exposed pad on MAX5054BATA+ is internally connected to GND and must be soldered to a PCB ground plane. This reduces θJA to 41°C/W (vs. ~132°C/W for SO-8), enabling 1.9W power dissipation. Pin 3 (GND) remains the primary electrical ground connection - the pad is thermal-only.

Is MAX5054BATA+ pin-compatible with other variants in the MAX5054–MAX5057 family?

No. MAX5054BATA+ (8-pin TDFN-EP) has different pinout than MAX5055–MAX5057 (SO-8/SO-EP). While all share 8-pin count, MAX5054 places INA+, INB+, INB−, INA− on pins 8, 7, 2, 1 respectively; MAX5055 uses pins 1/8 as NC and reassigns inputs. PCB layout is not interchangeable.