Analog Devices Inc./Maxim Integrated MAX6896AAZT/V+T

Overview

MAX6896AAZT/V+T from Maxim Integrated is an automotive-grade, active-low enable / active-low push-pull voltage supervisor with capacitor-adjustable delay, 0.5V input threshold, and operation from 1.5V to 5.5V supply. It provides precise power-supply sequencing and reset control in space-constrained automotive ECUs and industrial controllers.

For engineers reviewing the MAX6896AAZT/V+T datasheet, MAX6896AAZT/V+T pinout, MAX6896AAZT/V+T application, or MAX6896AAZT/V+T equivalent, key selection criteria include its AEC-Q100 qualification, -40°C to +125°C operation, 1.8% threshold accuracy over temperature, 10µA typical supply current, and µDFN/SOT23 package compatibility for high-density PCB layouts.

Technical Context

The MAX6896AAZT/V+T implements a fixed 0.5V internal reference with 5mV hysteresis, enabling accurate monitoring of external voltages via resistive dividers. Its ENABLE pin is active-low, requiring logic-high to deassert output and logic-low to initiate sequencing after delay.

Delay timing is set by an external capacitor on CDELAY pin, generating tDELAY = (CCDELAY × 4.0 × 10⁶) + 40µs from VIN rise above threshold to OUT assertion. Output is push-pull with VOH ≥ 0.8×VCC and VOL ≤ 0.3V at ISINK = 0.5mA, supporting direct interface to microcontroller reset inputs.

Key Specifications

Pinout & Package

MAX6896AAZT/V+T is packaged in a 6-pin thin SOT23 (1.60mm × 2.90mm), RoHS-compliant, lead-free package with thermal resistance θJA = 110°C/W. Pin 1 is ENABLE, Pin 2 is GND, Pin 3 is IN, Pin 4 is OUT, Pin 5 is CDELAY, and Pin 6 is VCC.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar voltage supervision and sequencing applications.

Compared with MAX6896PALT+T, the MAX6896AAZT/V+T offers field-tunable delay and AEC-Q100 qualification in SOT23; versus TLV803EB26DBZR, it delivers full sequencing control, adjustable threshold via divider, and automotive-grade reliability-making it uniquely suitable for complex, safety-aware power management.

Availability

MAX6896AAZT/V+T is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC development, and medical device power management requiring stable component supply and long-term lifecycle support.

Supply support for MAX6896AAZT/V+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 and mixed-signal ICs for demanding industrial, automotive, and communications applications.

The MAX6895–MAX6899 family was engineered specifically for ultra-small, low-power voltage supervision and power-rail sequencing in space- and power-constrained systems operating across extended temperature ranges.

FAQ

What is the exact function of the ENABLE pin on the MAX6896AAZT/V+T?

The ENABLE pin on the MAX6896AAZT/V+T is an active-low logic input. When pulled high, it forces the OUT pin to its deasserted (high) state regardless of the IN voltage. When driven low while IN exceeds 0.5V, it initiates the capacitor-adjustable delay period after which OUT is asserted (driven low). This enables external control of sequencing timing independent of input voltage ramp rate.

Does the MAX6896AAZT/V+T require an external pull-up resistor on the OUT pin?

No, the MAX6896AAZT/V+T features an active-low push-pull output, so no external pull-up resistor is required. The output actively drives low (≤0.3V at 0.5mA sink) and high (≥0.8×VCC at 500µA source), making it compatible with standard CMOS reset inputs without additional components.

How is the delay time calculated for the MAX6896AAZT/V+T using the CDELAY pin?

Delay time for the MAX6896AAZT/V+T is calculated as tDELAY = (CCDELAY × 4.0 × 10⁶) + 40µs, where CCDELAY is the capacitance (in farads) connected between CDELAY and GND. For example, a 0.047µF capacitor yields approximately 190ms delay. The 40µs term represents fixed internal propagation overhead.

Is the MAX6896AAZT/V+T qualified for automotive use, and what does the "/V+T" suffix indicate?

Yes, the "/V" in MAX6896AAZT/V+T denotes AEC-Q100 qualification for automotive applications (Grade 1, -40°C to +125°C), and "+T" indicates tape-and-reel packaging. The device meets stringent automotive reliability, testing, and traceability requirements for use in engine control, ADAS, and body electronics.

Can the MAX6896AAZT/V+T monitor a 3.3V supply directly, or is a resistor divider required?

A resistor divider is required to monitor a 3.3V supply with the MAX6896AAZT/V+T, because its IN pin has a fixed 0.5V threshold. To detect 3.3V, use R1 and R2 such that V_IN = 3.3V × R2/(R1 + R2) = 0.5V. With R2 = 1MΩ, R1 ≈ 5.6MΩ achieves this ratio while maintaining low current draw due to <±15nA input leakage.