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Analog Devices Inc./Maxim Integrated MAX8215CPD
- Part No.:
- MAX8215CPD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX8215CPD.pdf
- Description:
- IC SUPERVISOR MPU VOLT MONITOR
- Quantity:
- Payment:
- Shipping:
Inventory:1,923
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Product details
Overview
MAX8215CPD from Maxim Integrated is a precision 5-channel voltage monitor IC for microprocessor power-supply supervision, featuring four dedicated comparators for +5V, -5V, +12V, and -12V monitoring plus one auxiliary comparator for programmable overvoltage/undervoltage detection; it delivers ±1.25% accuracy on the +5V channel, ±1.5% on others, 1.24V internal reference with ±1% initial accuracy, and consumes ≤250µA supply current across 0°C to +70°C.
For engineers reviewing the MAX8215CPD datasheet, MAX8215CPD pinout, MAX8215CPD application, or MAX8215CPD equivalent, this device serves as a drop-in solution for multi-rail voltage monitoring in industrial controllers, portable instruments, and data-acquisition systems where stable trip thresholds, built-in hysteresis, and open-drain output flexibility are required.
Technical Context
The MAX8215CPD integrates five independent comparators: four fixed-threshold channels (+5V, -5V, +12V, -12V) with factory-trimmed resistive dividers and hysteresis, and one uncommitted auxiliary comparator (DIN/DOUT) whose noninverting input is externally accessible while its inverting input connects internally to the 1.24V reference. All outputs are open-drain, requiring external pull-ups.
It operates from a wide 2.7V to 11V supply, maintains functional output down to 0.8V VDD, and includes on-chip precision components - eliminating external resistor networks for standard rail monitoring. The internal reference exhibits ±1% initial accuracy and <15ppm/°C tempco, enabling accurate threshold derivation across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| +5V Trip Accuracy | ±1.25% - ensures reliable microprocessor reset activation within tight tolerance at nominal +5V rail |
| -5V/+12V/-12V Trip Accuracy | ±1.5% - provides consistent undervoltage/overvoltage detection for dual-polarity analog supplies |
| Internal Reference | 1.24V ±1% initial - enables precise, resistor-programmable thresholds for auxiliary comparator applications |
| Supply Current | ≤250µA over temperature - supports low-power battery-backed or always-on monitoring without burdening system supply |
| Operating Voltage Range | 2.7V to 11V - allows direct operation from 3.3V, 5V, or 9V system rails without external regulation |
| Comparator Response Time | 20µs at 30mV overdrive - delivers fast fault detection for transient supply events in real-time control systems |
| Hysteresis Voltage | 16mV typical - suppresses noise-induced chatter near trip points without external components |
Pinout & Package
MAX8215CPD is housed in a 14-pin plastic DIP (Dual-In-Line Package) with 0.300-inch width, lead pitch of 0.100 inch, and through-hole mounting. Pin 1 is located at the left end of the top row when viewing the top side with notch or dot oriented left.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pin 14) | Positive supply input | Accepts 2.7V–11V; must be bypassed to PGND with 0.1µF capacitor for stable reference operation |
| GND (Pin 2) | Analog ground reference | Connects to PGND; separates signal ground from power ground to minimize noise coupling into comparators |
| PGND (Pin 8) | Power ground return | Primary ground return path for VDD bypass and internal circuitry; ties to system power ground plane |
| +5V (Pin 3) | Dedicated +5V rail input | Monitors +5V supply directly; trip point set internally at 4.500V–4.657V (decreasing), with ±1.25% accuracy |
| -5V (Pin 4) | Dedicated -5V rail input | Monitors negative rail referenced to VREF; trip level = -4.304V to -4.500V (decreasing), ±1.5% accuracy |
| +12V (Pin 5) | Dedicated +12V rail input | Fixed threshold for +12V supply; trip level = 12.904V–13.566V (decreasing), ±1.5% accuracy |
| -12V (Pin 6) | Dedicated -12V rail input | Fixed threshold for -12V supply; trip level = -12.904V to -13.566V (decreasing), ±1.5% accuracy |
| DIN (Pin 7) | Auxiliary comparator noninverting input | Externally accessible node for custom voltage monitoring; inverting input tied to internal 1.24V reference |
| DOUT (Pin 9) | Auxiliary comparator open-drain output | Drives low when DIN > VREF + hysteresis; requires external pull-up for logic-level signaling or reset generation |
| VREF (Pin 1) | 1.24V reference output | Stable, buffered reference used for auxiliary comparator and external resistor-divider calculations |
| OUT1–OUT4 (Pins 10–13) | Dedicated comparator open-drain outputs | Independent outputs for +5V, -5V, +12V, -12V channels; each sinks current when respective rail is out-of-tolerance |
Key Features
| Feature | Design Value |
|---|---|
| Four fixed-voltage comparators | Eliminates need for external resistor networks and trimming when monitoring standard ±5V/±12V rails |
| Built-in hysteresis (16mV typ) | Prevents output oscillation near trip thresholds without external feedback components |
| 1.24V internal reference (±1% initial) | Enables accurate, temperature-stable programmable thresholds for auxiliary comparator applications |
| Open-drain outputs with 0.11V VOL @ 2mA | Supports wired-OR configurations, LED driving, and flexible logic-level interfacing across diverse host systems |
| Operational down to 0.8V VDD | Allows reliable undervoltage detection even as monitored supply collapses, critical for fail-safe reset generation |
Applications
| Industrial Power Monitoring | Microprocessor Reset Generation |
|---|---|
|
Use Scenario: Continuous supervision of ±5V and ±12V rails powering PLC I/O modules and analog front-ends in factory automation cabinets. IC Role / Device Role / Timing Role: Voltage monitor IC detecting undervoltage/overvoltage faults on multiple rails simultaneously and asserting independent open-drain fault flags. Use Value: Prevents erratic behavior or latch-up in sensitive analog circuitry by triggering immediate shutdown before rail collapse exceeds safe operating margins. |
Use Scenario: Generating a clean, debounced reset pulse for an ARM Cortex-M4 microcontroller during cold start and brownout conditions. IC Role / Device Role / Timing Role: Dual-comparator supervisor using +5V channel for undervoltage detection and auxiliary comparator with RC network for 200ms time-delayed release. Use Value: Ensures full core and peripheral initialization after power restoration, eliminating boot failures caused by premature clock or memory access. |
| Portable Instrument Supply Control | Data-Acquisition System Rail Integrity |
|
Use Scenario: Battery-powered handheld multimeter with dual-output DC-DC converter generating ±12V for op-amp rails and +5V for MCU and display. IC Role / Device Role / Timing Role: Multi-rail supervisor asserting separate fault signals for each rail, enabling intelligent power management and user alerting. Use Value: Extends usable battery life by disabling high-voltage sections when ±12V drops below specification, preserving measurement accuracy. |
Use Scenario: 16-bit isolated data-acquisition module requiring stable ±5V analog references and digital supply under variable load and EMI stress. IC Role / Device Role / Timing Role: Precision voltage monitor validating rail integrity prior to ADC conversion cycles and halting acquisition if any rail deviates beyond ±1.5%. Use Value: Guarantees measurement repeatability by preventing digitization during supply transients that would induce gain/offset errors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-rail voltage monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL7705ACPE4 | Single +5V monitor only; no negative rail support, no auxiliary comparator, no internal reference | Limited to basic +5V reset; cannot supervise ±12V or implement programmable thresholds | Select only when monitoring +5V alone suffices and board space/cost constraints preclude multi-channel solutions |
| ADM6705ARUZ | Triple voltage monitor (+3.3V/+5V/+12V); no negative rail inputs; 200ms fixed reset timeout; no auxiliary comparator | Supports positive-only rails; lacks -5V/-12V detection and flexible overvoltage/undervoltage configuration | Choose when system uses only positive supplies and requires integrated reset timing without external RC |
Compared with TL7705ACPE4 and ADM6705ARUZ, the MAX8215CPD uniquely supports full ±5V/±12V supervision with a programmable auxiliary channel and internal reference - making it the only option capable of comprehensive rail integrity validation in mixed-polarity industrial and test equipment designs.
Availability
MAX8215CPD is available at Aetrix Electronics and suitable for industrial controllers, portable instruments, and data-acquisition systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for production programs.
Supply support for MAX8215CPD 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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing applications.
The MAX8215CPD belongs to Maxim's microprocessor supervisory IC product line, engineered specifically for robust, multi-rail power supply monitoring in harsh environments where precision, low quiescent current, and reliability are critical.
FAQ
What is the operating temperature range for the MAX8215CPD?
The MAX8215CPD is specified for commercial-grade operation from 0°C to +70°C. This range is confirmed in the Ordering Information table and Absolute Maximum Ratings section of the official datasheet. It is distinct from the extended-temperature MAX8215EPD (-40°C to +85°C) and military-grade MAX8215MPD (-55°C to +125°C) variants. The CPD suffix explicitly denotes the 0°C to +70°C grade.
Does the MAX8215CPD support monitoring of -15V or +15V rails?
No, the MAX8215CPD is designed exclusively for ±5V and ±12V rail monitoring. Its pin 5 (+12V) and pin 6 (-12V) inputs are hardwired to internal dividers calibrated for those voltages. The MAX8216CPD variant replaces these with ±15V monitoring capability. Using the MAX8215CPD for ±15V will result in incorrect trip points outside datasheet specifications.
How is hysteresis implemented in the MAX8215CPD, and can it be adjusted?
Hysteresis in the MAX8215CPD is fully internal and fixed at approximately 16mV for the auxiliary comparator and factory-trimmed for the dedicated channels. It is not user-adjustable via external components. This design eliminates the need for external feedback resistors while ensuring consistent noise immunity across temperature and supply voltage - a key differentiator from general-purpose comparators.
What is the purpose of the separate PGND and GND pins on the MAX8215CPD?
The MAX8215CPD uses PGND (Pin 8) as the primary power ground return for VDD bypassing and internal circuitry, while GND (Pin 2) serves as the analog reference ground for comparator inputs and VREF. Separating these grounds minimizes noise coupling from switching currents into sensitive analog nodes, improving trip-point accuracy - especially critical when monitoring low-hysteresis rails like ±5V.
Can the MAX8215CPD be used to monitor its own VDD supply?
Yes, the MAX8215CPD supports self-monitoring: the +5V comparator can detect VDD undervoltage when VDD is derived from a regulated +5V source, and the auxiliary comparator (with external resistor divider) can be configured for overvoltage detection on the same VDD rail. Figure 4 and Figure 7 in the datasheet provide validated schematics for this dual-threshold self-supply monitoring.
MAX8215CPD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 5
- Voltage - Threshold:
- ±5V, ±12V, Adj
- Output:
- Open Drain or Open Collector
- Reset:
- -
- Reset Timeout:
- 20µs Typical Propagation Delay
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
MAX8215CPD FAQ
1.How can I place an order for MAX8215CPD through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8215CPD on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX8215CPD reliable?
The price and inventory of MAX8215CPD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8215CPD is usually 5 days.
3.What payment methods are accepted for MAX8215CPD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8215CPD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8215CPD?
MAX8215CPD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8215CPD order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX8215CPD?
For technical support, including MAX8215CPD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8215CPD requirements.
6.How does Aetrix verify that MAX8215CPD is sourced from the original manufacturer or authorized distributors?
All MAX8215CPD products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX8215CPD meets industry standards.
7.What is the process for return or replacement of MAX8215CPD?
All MAX8215CPD units undergo pre-shipment inspection (PSI). If there is an issue with MAX8215CPD, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX8215CPD part is unused and in its original packaging.
Return procedure for MAX8215CPD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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