Analog Devices Inc./Maxim Integrated MAX6510CAUT/GH9

Overview

MAX6510CAUT/GH9 from Maxim Integrated is a resistor-programmable SOT23-6 temperature switch with set-cold trip behavior, ±0.5°C typical threshold accuracy, 2°C/10°C pin-selectable hysteresis, and open-drain output with internal pull-up resistor (OUTSET unconnected). It operates from +2.7V to +5.5V, draws 32µA supply current, and targets thermal monitoring in microprocessor systems where cold-trip alarms trigger shutdown on falling temperature.

For engineers reviewing the MAX6510CAUT/GH9 datasheet, MAX6510CAUT/GH9 pinout, MAX6510CAUT/GH9 application, or MAX6510CAUT/GH9 equivalent, this page delivers verified package mapping (SOT23-6), confirmed circuit role (set-cold temperature switch), validated output configuration (open-drain with internal pull-up), and real-world selection guidance for thermal alarm and fan control designs.

Technical Context

The MAX6510CAUT/GH9 implements a precision temperature trip using dual temperature-dependent references - one with positive TC and one with negative TC - whose intersection defines the threshold. Its set-cold functionality ensures output assertion when die temperature falls below the programmed point, with deassertion occurring only after temperature rises above the threshold plus selected hysteresis (e.g., −40°C trip with 2°C hysteresis deasserts at −38°C).

Hysteresis is controlled via the HYST pin: logic low (GND) selects 2°C, logic high (VCC) selects 10°C. The OUTSET pin configures output mode - unconnected enables open-drain with internal pull-up - and all pins are CMOS-compatible with defined leakage (<1µA) and voltage thresholds (VIH = VCC − 0.4V, VIL = 0.4V).

Key Specifications

Pinout & Package

SOT23-6 package with 0.95mm pitch, 2.9mm × 1.6mm footprint, and exposed pad for thermal performance. RoHS-compliant, lead(Pb)-free construction.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar temperature switch applications.

Compared with MAX6510HAUT+T and LM75BIMM/NOPB, the MAX6510CAUT/GH9 uniquely provides set-cold behavior with resistor-based threshold tuning and zero-firmware open-drain output - making it optimal for fail-safe low-temperature detection where deterministic analog response is mandatory.

Availability

MAX6510CAUT/GH9 is available at Aetrix Electronics and suitable for microprocessor reset, fan control enable, automotive battery monitoring, and industrial sensor calibration hold applications requiring stable component supply and guaranteed −40°C to +125°C operation.

Supply support for MAX6510CAUT/GH9 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 industrial, automotive, and computing markets.

The MAX6509/MAX6510 product line delivers resistor-programmable temperature switches optimized for simple, reliable thermal protection - eliminating complex firmware or digital interfaces while maintaining ±0.5°C accuracy across extreme temperatures.

FAQ

What does the 'C' suffix in MAX6510CAUT/GH9 indicate?

The 'C' suffix denotes set-cold functionality: the MAX6510CAUT/GH9 asserts its output when temperature falls below the programmed threshold and deasserts only after temperature rises above the threshold plus selected hysteresis. This is distinct from 'H' (set-hot) variants like MAX6510HAUT+T, which trip on rising temperature. The MAX6510CAUT/GH9 is specifically designed for cold-temperature alarm and shutdown applications.

How is the trip temperature set for MAX6510CAUT/GH9?

The trip temperature of MAX6510CAUT/GH9 is set by connecting a 1% tolerance resistor between the SET pin (Pin 6) and GND. Resistance value determines threshold per published equations: for −40°C to 0°C, RSET(kΩ) = [(1.3258 × 10⁵)/(T+1.3)] − 310.1693 − [(5.7797 × 10⁶)/(T+1.3)²]; T is Kelvin. A 30kΩ resistor yields approximately −40°C trip. The MAX6510CAUT/GH9 requires no calibration or trimming.

What output configuration does MAX6510CAUT/GH9 use by default?

By default, MAX6510CAUT/GH9 uses open-drain output with internal pull-up resistor - activated when the OUTSET pin (Pin 5) is left unconnected. This configuration eliminates the need for an external pull-up resistor in reset or enable circuits. The output sinks current when asserted (low) and presents high impedance when deasserted, with internal pull-up ensuring defined logic-high state.

Can MAX6510CAUT/GH9 be used alongside a set-hot device for window detection?

Yes, MAX6510CAUT/GH9 (set-cold) can be paired with a set-hot device like MAX6510HAUT+T to create a temperature window detector. Their outputs can be wire-ORed using a single external resistor to generate an out-of-range alarm - asserted when temperature falls below the cold threshold OR rises above the hot threshold. This configuration is explicitly supported in Maxim's Figure 5 and requires no additional logic.

What is the maximum load current the MAX6510CAUT/GH9 output can sink?

The MAX6510CAUT/GH9 output can sink up to 20mA continuously, with VOL ≤ 0.3V guaranteed at IOUT = 5mA. At full 20mA sink, voltage drop remains within specification per absolute maximum ratings. This capability allows direct drive of small relays, LEDs, or MOSFET gates without buffering - critical for compact fan control and reset circuits where board space is constrained.