Analog Devices Inc./Maxim Integrated MAX5057BASA+

Overview

MAX5057BASA+ from Maxim Integrated is a dual-channel, TTL-input MOSFET driver optimized for high-frequency power conversion. It delivers 4A peak source/sink current per channel, achieves 20ns typical propagation delay and 20ns rise/fall times into 5000pF, and operates from 4V to 15V supply across –40°C to +125°C. It serves as a gate driver in synchronous rectified DC-DC converters and half-bridge motor control stages.

For engineers reviewing the MAX5057BASA+ datasheet, MAX5057BASA+ pinout, MAX5057BASA+ application, or MAX5057BASA+ equivalent, key selection criteria include TTL logic compatibility, matched inter-channel propagation delay (≤2ns), SO package thermal performance (θJA = 132°C/W), and shoot-through prevention during output transitions.

Technical Context

The MAX5057BASA+ implements dual independent drivers with one inverting (INB–/OUTB) and one noninverting (INA+/OUTA) input per channel - enabling push-pull or complementary switching topologies without external logic. Its break-before-make internal control prevents cross-conduction between output p- and n-channel devices.

It features TTL-compatible inputs (VIH = 2.1V min, VIL = 0.8V max), 0.3V hysteresis, ±18V input overvoltage tolerance regardless of VDD, and 2.5pF typical input capacitance. Propagation delay matching between channels (∆tA-B ≤ 2ns at VDD = 4.5V) and between inverting/noninverting paths (∆tON-OFF ≤ 4ns) ensures precise timing in phase-critical applications like synchronous buck controllers.

Key Specifications

Pinout & Package

MAX5057BASA+ uses an 8-pin SO (Small Outline) package without exposed pad (EP), with θJA = 132°C/W and θJC = 40°C/W. Pin 3 is GND; pins 1 and 8 are no-connect (N.C.) per MAX5057 functional configuration.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX5057BASA+, MAX5057AASA+ offers superior thermal dissipation via its exposed pad but demands additional PCB land pattern; TC4429 provides lower-cost dual drive but sacrifices peak current, timing precision, and ruggedness required for automotive-grade power conversion.

Availability

MAX5057BASA+ is available at Aetrix Electronics and suitable for synchronous buck converters, half-bridge motor drives, and isolated flyback power supplies requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX5057BASA+ 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 and mixed-signal ICs for power, sensing, and connectivity applications.

The MAX5054–MAX5057 family was engineered specifically for high-speed, high-current gate driving in automotive and industrial power conversion - emphasizing timing accuracy, shoot-through immunity, and robust input protection.

FAQ

What logic levels does MAX5057BASA+ accept?

MAX5057BASA+ accepts TTL-compatible logic inputs: VIH ≥ 2.1V and VIL ≤ 0.8V, with 0.3V hysteresis. It does not support CMOS thresholds. Input pins tolerate up to +18V regardless of VDD, making it compatible with 3.3V, 5V, or 12V logic sources without level shifters - a key feature confirmed in the Electrical Characteristics table and Detailed Description section.

Does MAX5057BASA+ have an exposed thermal pad?

No, MAX5057BASA+ uses an 8-pin SO package without exposed pad (EP). The "BASA" suffix denotes standard SO, whereas "BASA+" indicates RoHS compliance - not thermal enhancement. For EP variants, select MAX5057AASA+, which uses SO-EP with θJA = 41°C/W. This distinction is explicitly stated in the Ordering Information and Package Information tables.

How is the pin configuration of MAX5057BASA+ different from MAX5054?

MAX5057BASA+ has pins 1 and 8 designated as N.C. (no connect), while MAX5054 uses all eight pins functionally (INA+, INA−, INB+, INB−, OUTB, OUTA, VDD, GND). MAX5057's simplified input structure - one inverting (INA−) and one noninverting (INA+) input per channel - reduces external logic but eliminates dual-input flexibility. This is documented in the Pin Configurations and Selector Guide sections.

What is the maximum capacitive load MAX5057BASA+ can drive while maintaining 20ns timing?

MAX5057BASA+ achieves 20ns typical rise/fall times and propagation delay when driving a 5000pF load at VDD = 15V, as specified in the General Description and Switching Characteristics tables. At 10,000pF, rise/fall times increase to 32ns/26ns and propagation delay to 20ns (typ), confirming usable performance up to 10nF - sufficient for most discrete MOSFET gates and paralleled devices.

Can MAX5057BASA+ be used in place of MAX5055BASA+?

MAX5057BASA+ is not a drop-in replacement for MAX5055BASA+. While both are TTL-input dual drivers in SO packages, MAX5055BASA+ provides dual inverting inputs (INB−/INA−), whereas MAX5057BASA+ provides one inverting (INA−) and one noninverting (INA+) input. Swapping them requires circuit redesign to match input logic polarity - a difference clearly shown in Tables 1 and 2 and the Functional Diagrams.