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Analog Devices Inc./Maxim Integrated MAX8211MTY
- Part No.:
- MAX8211MTY
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-99-8 Metal Can
- Datasheet:
-
MAX8211MTY.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL TO99-8
- Quantity:
- Payment:
- Shipping:
Inventory:451
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Product details
Overview
MAX8211MTY from Maxim Integrated is a CMOS micropower voltage detector IC designed for microprocessor power-fail warning and programmable undervoltage/overvoltage monitoring. It features a 1.15V internal bandgap reference, ±40mV threshold accuracy (±3.5%), 7mA current-limited open-drain output sink, and operates across 2.0V–16.5V supply range. Used in battery-backup switching and logic-supply undervoltage detection circuits with external resistor networks.
For engineers reviewing the MAX8211MTY datasheet, MAX8211MTY pinout, MAX8211MTY application, or MAX8211MTY equivalent, this page delivers verified technical context, exact pin functions, real-world use scenarios, and validated alternative options - all grounded in Maxim's official specifications for the TO-99 packaged -55°C to +125°C grade device.
Technical Context
The MAX8211MTY implements a comparator-based detection architecture with a precision 1.15V internal reference and low-leakage MOSFET THRESH input. Its open-drain n-channel OUT sinks up to 7mA when THRESH falls below the reference, enabling direct LED drive without series resistors.
A dedicated open-drain p-channel HYST output provides programmable positive feedback via external resistor R3, delivering noise-immune hysteresis. The device supports both undervoltage (MAX8211) and overvoltage (MAX8212) configurations using identical external topology but opposite trip polarity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0V to 16.5V - supports operation from low-voltage logic rails up to industrial 15V supplies without external regulation. |
| Threshold Reference | 1.15V ±40mV - enables precise, resistor-programmable trip points for custom undervoltage/overvoltage thresholds. |
| Output Sink Current | 7mA typical - current-limited OUT allows direct interface to LEDs, optocouplers, or µP NMI inputs without external current limiting. |
| Quiescent Current | 5µA - ultra-low standby power ideal for battery-backed systems requiring years of shelf life. |
| Hysteresis Control | Dedicated HYST pin with ±0.1mV disparity - eliminates output chatter by enabling user-defined dead-band via external feedback resistor. |
| Operating Temperature | -55°C to +125°C - qualified for military-grade and extended-temperature industrial applications per MAX8211MTY ordering code. |
| Package Type | 8-pin TO-99 metal can - hermetically sealed, low-inductance package with case connected to Pin 4, suitable for high-reliability analog monitoring. |
Pinout & Package
MAX8211MTY is housed in an 8-pin TO-99 metal can package with case connected to Pin 4 (GND). This hermetic package ensures long-term stability in harsh environments and provides superior thermal and EMI performance versus plastic alternatives.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply input | Accepts 2.0V–16.5V; powers internal reference and comparator; must be decoupled locally for noise immunity. |
| HYST | Open-drain p-channel hysteresis output | Provides positive feedback current to resistor divider; polarity and magnitude set hysteresis width and prevent false triggering. |
| THRESH | Comparator input | High-impedance MOSFET node; voltage at this pin compared to 1.15V reference determines output state. |
| GND | Ground reference | System ground return; TO-99 case is electrically tied to this pin (Pin 4), requiring proper mechanical grounding. |
| OUT | Open-drain n-channel output | Sinks up to 7mA when THRESH < 1.15V; requires external pull-up to define logic-high level and drive load. |
| N.C. | No connection | Pins 2, 3, 5, 6, and 7 are internally unconnected; must remain floating or grounded per layout best practices. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable trip voltage | Set via two external resistors (R1/R2); enables custom undervoltage detection down to 2.0V or overvoltage up to 16.5V. |
| Current-limited output | 7mA max sink on OUT pin eliminates need for series current-limiting resistors when driving LEDs or optocouplers. |
| On-board hysteresis control | Dedicated HYST pin allows precise, adjustable hysteresis using single external resistor - no extra ICs or comparators required. |
| Ultra-low quiescent current | 5µA supply current ensures minimal battery drain in always-on monitoring applications such as backup SRAM supervisors. |
| Military temperature grade | -55°C to +125°C operation qualifies MAX8211MTY for avionics, downhole tools, and extended-range industrial controllers. |
Applications
| Logic-Supply Undervoltage Detection | Battery-Backup Switching |
|---|---|
Use Scenario: Monitoring a 5.0V nominal logic supply to assert reset before voltage drops below 4.5V VMIN. IC Role / Device Role / Timing Role: Voltage detector generating NMI or reset signal when supply crosses programmable threshold. Use Value: Prevents logic corruption during brownout by triggering controlled shutdown before digital rail instability occurs. |
Use Scenario: Seamlessly transferring system power from main supply to backup battery upon main rail failure. IC Role / Device Role / Timing Role: Supervisory trigger that enables power-path MOSFETs or diode-OR controllers when main VIN falls. Use Value: Ensures uninterrupted operation of real-time clocks, SRAM, or configuration memory during AC loss or battery swap. |
| Microprocessor Power-Fail Warning | Power-Supply Fault Monitoring |
Use Scenario: Providing early warning to µP before supply collapse, allowing safe register save and graceful shutdown. IC Role / Device Role / Timing Role: Threshold comparator feeding interrupt line (e.g., NMI) to initiate firmware-controlled power-down sequence. Use Value: Enables deterministic data preservation in embedded controllers where sudden power loss would corrupt nonvolatile storage. |
Use Scenario: Detecting overvoltage or undervoltage faults in regulated DC-DC outputs used in telecom or industrial power modules. IC Role / Device Role / Timing Role: Independent analog monitor verifying regulator output integrity outside control-loop feedback path. Use Value: Adds fail-safe layer beyond closed-loop regulation, catching catastrophic failures like feedback resistor drift or op-amp saturation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX8212MTY | Same TO-99 package and temp grade, but non-current-limited output (35mA typical sink) and inverted trip logic (turns ON when THRESH > 1.15V). | Used for overvoltage detection or higher-current loads; not drop-in compatible due to opposite trip polarity and lack of current limiting. | Select MAX8212MTY only when overvoltage response or higher output drive is required - circuit redesign needed for resistor network and logic polarity. |
| TLV803M33DBZR | Fixed 3.3V threshold, SOT-23-5 package, 1.6µA quiescent current, no hysteresis pin - lacks programmability and HYST control. | Only suitable for fixed-threshold, space-constrained applications; cannot replicate MAX8211MTY's resistor-programmable flexibility or noise-immune hysteresis. | Choose TLV803M33DBZR for cost-sensitive, fixed-voltage monitoring where board area is critical and hysteresis is handled externally. |
Compared with MAX8212MTY and TLV803M33DBZR, the MAX8211MTY uniquely combines military-grade temperature support, programmable trip voltage, current-limited output, and dedicated hysteresis control - making it irreplaceable in high-reliability, multi-rail monitoring systems requiring design flexibility and noise immunity.
Availability
MAX8211MTY is available at Aetrix Electronics and suitable for logic-supply undervoltage detection, battery-backup switching, and microprocessor power-fail warning applications requiring stable component supply across extended temperature ranges.
Supply support for MAX8211MTY 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 industrial, automotive, communications, and computing markets, emphasizing reliability, integration, and low-power operation.
The MAX8211 product line delivers programmable voltage supervision for mission-critical systems - engineered specifically for high-accuracy, low-quiescent-current monitoring in harsh thermal and electrical environments.
FAQ
What is the function of the HYST pin on the MAX8211MTY?
The HYST pin on the MAX8211MTY is an open-drain p-channel output used to inject positive feedback into the external resistor divider network. When enabled, it raises the effective trip threshold during rising voltage transitions, creating a hysteresis band that prevents output oscillation near the trip point. This feature is essential for noise-immune operation in electrically noisy environments and eliminates the need for external Schmitt-trigger circuitry.
Does the MAX8211MTY require external components to operate?
Yes, the MAX8211MTY requires at least two external resistors (R1 and R2) to form a voltage divider that scales the monitored voltage to the 1.15V internal reference at the THRESH pin. A third resistor (R3) is optional but recommended to configure hysteresis via the HYST pin. No external capacitors or active devices are needed - the MAX8211MTY functions as a complete, self-contained voltage detector with programmable behavior.
What is the maximum supply voltage the MAX8211MTY can tolerate?
The MAX8211MTY has an absolute maximum supply voltage rating of +18V, but its guaranteed operating range is 2.0V to 16.5V. Operation above 16.5V violates specification limits and risks unreliable detection or permanent damage. For systems with transient spikes or unregulated rails, ensure clamping or regulation keeps V+ within the 16.5V operational ceiling - especially critical in 15V industrial power domains.
How does the MAX8211MTY differ from the MAX8212MTY?
The MAX8211MTY and MAX8212MTY share identical packaging, temperature grade, and pinout, but differ fundamentally in trip logic and output capability. The MAX8211MTY asserts its open-drain OUT when THRESH falls *below* 1.15V (undervoltage mode) and limits sink current to 7mA. The MAX8212MTY asserts OUT when THRESH rises *above* 1.15V (overvoltage mode) and provides up to 35mA sink without current limiting - making them functionally complementary, not interchangeable.
Is the TO-99 package of the MAX8211MTY lead-free and RoHS compliant?
Yes, the MAX8211MTY in TO-99 package is RoHS compliant and lead-free per Maxim Integrated's standard manufacturing process for military-temperature products. The TO-99 metal can uses matte tin plating on leads and meets JEDEC J-STD-609 Category 1 requirements. Full compliance documentation, including material declarations and test reports, is available through Analog Devices' product change notifications and quality portal.
MAX8211MTY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- TO-99-8 Metal Can
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- Adjustable/Selectable
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- <1ms Minimum
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-99-8
MAX8211MTY FAQ
1.How can I place an order for MAX8211MTY through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8211MTY 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 MAX8211MTY reliable?
The price and inventory of MAX8211MTY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8211MTY is usually 5 days.
3.What payment methods are accepted for MAX8211MTY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8211MTY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8211MTY?
MAX8211MTY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8211MTY 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 MAX8211MTY?
For technical support, including MAX8211MTY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8211MTY requirements.
6.How does Aetrix verify that MAX8211MTY is sourced from the original manufacturer or authorized distributors?
All MAX8211MTY 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 MAX8211MTY meets industry standards.
7.What is the process for return or replacement of MAX8211MTY?
All MAX8211MTY units undergo pre-shipment inspection (PSI). If there is an issue with MAX8211MTY, 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 MAX8211MTY part is unused and in its original packaging.
Return procedure for MAX8211MTY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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