Analog Devices Inc./Maxim Integrated MAX8215EPD

Overview

MAX8215EPD from Maxim Integrated is a precision 5-channel microprocessor voltage monitor IC featuring four dedicated comparators for +5V, −5V, +12V, and −12V supply rails plus one auxiliary comparator for programmable overvoltage/undervoltage detection. It integrates on-chip 1.24V reference (±1% initial accuracy), built-in hysteresis, and open-drain outputs-enabling reliable power-good signaling in industrial controllers and embedded systems requiring −40°C to +85°C operation.

For engineers reviewing the MAX8215EPD datasheet, MAX8215EPD pinout, MAX8215EPD application, or MAX8215EPD equivalent, this device delivers verified ±1.25% trip accuracy on +5V monitoring, ±1.5% on ±12V inputs, 250µA max supply current over temperature, and stable operation down to 0.8V VDD-critical for self-monitoring reset circuits and multi-rail power sequencing.

Technical Context

The MAX8215EPD implements five independent comparators: four fixed-threshold channels tied to standard supply rails (+5V, −5V, +12V, −12V) and one auxiliary channel with externally accessible noninverting input (DIN) referenced to the internal 1.24V bandgap. All outputs are open-drain, requiring external pull-ups and supporting wire-OR configurations.

Hysteresis is fully integrated-eliminating external resistor networks-and provides 1.25–2.25% threshold hysteresis depending on rail, with trip-level tolerances specified across −40°C to +85°C. The device operates from 2.7V to 11V VDD and maintains functional output down to 0.8V VDD, enabling direct monitoring of its own supply in undervoltage reset applications.

Key Specifications

Pinout & Package

MAX8215EPD is housed in a 14-pin plastic DIP package (0.300" width), RoHS-compliant, rated for −40°C to +85°C operation. Pin 1 is VREF; pin 14 is VDD. Bypass capacitor (0.1µF) required between VDD and PGND.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microprocessor voltage monitor applications.

Compared with MAX8216EPD, the MAX8215EPD offers tighter +5V accuracy (±1.25% vs ±1.5%) and matches ±12V systems without redesign; versus TPS3808G33DBVR, it provides five independent monitoring channels and field-programmable thresholds-making it irreplaceable in complex multi-supply embedded platforms.

Availability

MAX8215EPD is available at Aetrix Electronics and suitable for industrial controllers, portable instruments, mobile radios, and data-acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX8215EPD 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 high-performance analog and mixed-signal ICs for power management, sensing, and interface applications-with emphasis on reliability, integration, and ruggedized operation.

The MAX8215EPD belongs to Maxim's microprocessor supervisory product line, engineered specifically for robust, multi-rail voltage monitoring in industrial, automotive, and communications equipment where precision, low power, and extended temperature performance are mandatory.

FAQ

What is the operating temperature range of the MAX8215EPD?

The MAX8215EPD is rated for −40°C to +85°C operation, making it suitable for industrial and extended-temperature embedded applications. This grade is confirmed in the Ordering Information table, where "E" suffix denotes the −40°C to +85°C range, and "PD" specifies the 14-pin plastic DIP package. Electrical characteristics-including trip accuracy, supply current, and reference stability-are guaranteed across this full range.

Does the MAX8215EPD require external hysteresis components?

No, the MAX8215EPD includes fully integrated hysteresis on all five comparators-eliminating the need for external feedback resistors. As stated in the Features section, "Built-In Hysteresis" is a core capability, and the Electrical Characteristics table confirms hysteresis values of 1.25–2.25% depending on the input rail. This simplifies design, improves repeatability, and avoids layout sensitivity associated with discrete hysteresis networks.

Can the MAX8215EPD monitor its own VDD supply?

Yes, the MAX8215EPD can monitor its own VDD supply using the +5V comparator and auxiliary comparator in combination, as shown in Figure 4 and described in the "Monitoring the Supply Voltage" section. Its outputs remain functional down to 0.8V VDD, enabling reliable undervoltage detection even during deep brownout events. This capability is explicitly validated in the datasheet's Electrical Characteristics and Typical Operating Characteristics sections.

What is the function of the DIN and DOUT pins on the MAX8215EPD?

DIN (Pin 7) is the noninverting input of the auxiliary comparator, externally accessible for custom voltage monitoring using resistor dividers referenced to the internal 1.24V VREF. DOUT (Pin 9) is the corresponding open-drain output, asserted low when the DIN voltage crosses the programmed threshold. This pair enables overvoltage or undervoltage detection on any user-defined rail-distinct from the four fixed-threshold comparators.

Is the MAX8215EPD pin-compatible with the MAX8216EPD?

Yes, the MAX8215EPD and MAX8216EPD share identical pinouts, package dimensions, and electrical interfaces-the only functional difference is that MAX8215EPD monitors ±12V while MAX8216EPD monitors ±15V on Pins 5 and 6. The datasheet explicitly states "The MAX8216 is identical, except it monitors ±15V supplies instead of ±12V," and the Pin Configuration diagram confirms shared pin numbering and functions across both variants.