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Analog Devices Inc./Maxim Integrated MAX8212EPA+
- Part No.:
- MAX8212EPA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX8212EPA+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,269
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Product details
Overview
MAX8212EPA+ from Analog Devices is a CMOS micropower voltage detector IC designed for microprocessor power-fail warning and programmable undervoltage/overvoltage monitoring. It features a 1.15V bandgap reference, open-drain n-channel output, ±40mV threshold accuracy, 5µA quiescent current, and operates across 2.0V–16.5V supply range. Used in battery-backup switching and power-supply fault monitoring where precision trip point and low power are critical.
For engineers reviewing the MAX8212EPA+ datasheet, MAX8212EPA+ pinout, MAX8212EPA+ application, or MAX8212EPA+ equivalent, this page delivers verified electrical parameters, validated pin functions, real-world use cases for logic-supply monitoring and backup switchover, and confirmed alternative parts with documented functional distinctions.
Technical Context
The MAX8212EPA+ implements a comparator-based detection architecture with an internal 1.15V bandgap reference and external resistor-programmable trip voltage. Its THRESH pin senses input voltage relative to the reference, and its open-drain OUT activates when THRESH exceeds 1.15V - enabling overvoltage detection without current limiting (typical sink current 35mA).
It includes a dedicated HYST pin providing open-drain p-channel hysteresis output (±0.1mV threshold disparity), allowing user-defined noise immunity via positive feedback. The device supports full industrial temperature range (−40°C to +85°C) and is housed in an 8-pin plastic DIP package with GND-connected case.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0V to 16.5V - supports wide-input rail monitoring including 3.3V, 5V, and 12V systems |
| Quiescent Current | 5µA typical - enables multi-year battery operation in low-power backup circuits |
| Threshold Accuracy | ±40mV (±3.5%) at +25°C - ensures reliable trip point setting without trimming resistors |
| Output Type | Open-drain n-channel - allows wired-OR configuration and level-shifting to higher-voltage rails |
| Hysteresis Output | Open-drain p-channel with 2–10mA drive - provides precise, user-adjustable hysteresis without external op-amps |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade embedded control and power management |
| Threshold Tempco | −200ppm/°C - maintains stable trip point across temperature without calibration |
Pinout & Package
MAX8212EPA+ is packaged in an 8-pin plastic DIP (P8-1), with pin 7 connected to GND and case grounded per TO-99/DIP mechanical specification. Pin 4 is V+, pin 5 is GND, pin 1 is THRESH, pin 2 is HYST, and pin 8 is OUT.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - THRESH | Comparator input | Voltage divider node referenced to 1.15V internal reference; triggers OUT when >1.15V |
| 2 - HYST | Hysteresis output | Open-drain p-channel output used to inject positive feedback into THRESH network |
| 4 - V+ | Power supply | Primary supply rail (2.0–16.5V); powers internal reference and comparator |
| 5 - GND | Ground reference | Analog and digital ground return; case-connected in DIP package |
| 8 - OUT | Main output | Open-drain n-channel output active-low when THRESH >1.15V; sinks up to 35mA |
Key Features
| Feature | Design Value |
|---|---|
| Programmable trip voltage | Set via two external resistors - eliminates need for fixed-threshold detectors across diverse supply rails |
| On-board hysteresis output | Dedicated HYST pin enables precise, adjustable hysteresis without external components or op-amps |
| Low-leakage THRESH input | ≤10nA input current - permits use of high-value resistor dividers (>10MΩ), minimizing system current drain |
| Industrial temperature grade | −40°C to +85°C operation - suitable for automotive body electronics and industrial PLCs without derating |
| Plug-in replacement for ICL8212 | Same pinout and function as bipolar ICL8212 - enables drop-in upgrade with lower power and tighter tolerance |
Applications
| Logic-Supply Undervoltage Detection | Battery-Backup Switchover |
|---|---|
Use Scenario: Monitoring a 5.0V logic supply to assert NMI when voltage drops below 4.5V. IC Role / Device Role / Timing Role: Voltage monitor generating clean, hysteresis-stabilized reset signal to microprocessor. Use Value: Prevents logic corruption by ensuring CPU halts before supply falls below guaranteed operating voltage. | Use Scenario: Switching between main DC supply and backup battery when main rail fails. IC Role / Device Role / Timing Role: Overvoltage detector triggering MOSFET gate driver to engage backup path. Use Value: Enables seamless transition with <75mV hysteresis, eliminating chatter during brownout recovery. |
| Power-Supply Fault Monitoring | Microprocessor Power-Fail Warning |
Use Scenario: Detecting overvoltage on a 12V DC-DC converter output in telecom equipment. IC Role / Device Role / Timing Role: High-side overvoltage supervisor feeding fault flag to system controller. Use Value: Provides 250µs response time and 35mA sink capability to directly drive optocoupler or latch. | Use Scenario: Generating early warning interrupt before VCC collapse in embedded controllers. IC Role / Device Role / Timing Role: Threshold comparator feeding NMI line to µP upon rising VTH crossing 1.15V. Use Value: Delivers 40µs turn-on delay and 5µA quiescent draw - extends safe shutdown window without loading supply. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX8212ESA+ | Same die, SO-8 package - smaller footprint, surface-mount compatible | Preferred for space-constrained PCBs; thermal resistance differs (SO: 5.88mW/°C derating) | Select MAX8212ESA+ when automated assembly and board density are priorities over through-hole reliability. |
| TLV809E33DBZR | Fixed 3.3V threshold, no programmability, no hysteresis output, 1.6V–6.0V supply range | Suitable only for single-rail 3.3V systems; lacks external hysteresis control and overvoltage flexibility | Choose TLV809E33DBZR only if fixed threshold suffices and board area is extremely limited - not a functional substitute for programmable monitoring. |
Compared with MAX8212ESA+, the MAX8212EPA+ offers identical electrical performance but greater mechanical robustness in through-hole DIP form; versus TLV809E33DBZR, it provides full programmability, dual-mode (under/over) detection, and integrated hysteresis - making it essential for multi-rail, mission-critical monitoring.
Availability
MAX8212EPA+ is available at Aetrix Electronics and suitable for industrial power-supply fault monitoring, battery-backed memory retention, and microprocessor reset generation requiring stable component supply across extended temperature ranges.
Supply support for MAX8212EPA+ 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX8212EPA+ belongs to the MAX8211/MAX8212 family of programmable voltage monitors, engineered specifically for precision, low-power, and flexible power-fail detection in microprocessor-based systems.
FAQ
What is the primary function of the MAX8212EPA+?
The MAX8212EPA+ is a programmable overvoltage detector IC that asserts its open-drain output when the voltage at the THRESH pin exceeds the internal 1.15V reference. Unlike the MAX8211EPA+, it does not limit output current, enabling direct drive of higher-current loads such as optocouplers or small relays. Its design centers on reliable, low-power supervision of microprocessor supply rails.
How does the MAX8212EPA+ differ from the MAX8211EPA+ in circuit behavior?
The MAX8212EPA+ activates its OUT pin when THRESH voltage rises above 1.15V (overvoltage mode), while the MAX8211EPA+ activates when THRESH falls below 1.15V (undervoltage mode). Additionally, the MAX8212EPA+ has no built-in output current limit - typical sink current is 35mA - whereas the MAX8211EPA+ limits to 7mA. Both share identical pinout, reference, and hysteresis functionality.
Can the MAX8212EPA+ be used for undervoltage detection?
No - the MAX8212EPA+ is inherently an overvoltage detector due to its comparator polarity: OUT turns ON when THRESH > 1.15V. To implement undervoltage detection, the MAX8211EPA+ must be used instead. Attempting to repurpose the MAX8212EPA+ for undervoltage would require external inversion circuitry, defeating its simplicity and increasing error sources.
What is the role of the HYST pin on the MAX8212EPA+?
The HYST pin on the MAX8212EPA+ is an open-drain p-channel output that supplies positive feedback to the THRESH node via an external resistor (R3). This creates user-adjustable hysteresis - typically 75mV in reference designs - preventing output oscillation during slow-moving or noisy supply transitions. It is electrically isolated from the main OUT pin and operates independently.
Is the MAX8212EPA+ RoHS-compliant and lead-free?
Yes - the "+" suffix in MAX8212EPA+ indicates full RoHS compliance and lead-free finish per Analog Devices' packaging standards. The part meets JEDEC J-STD-020 moisture sensitivity level (MSL) requirements for plastic DIP packages and is qualified for reflow and wave soldering per industry specifications.
MAX8212EPA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
MAX8212EPA+ FAQ
1.How can I place an order for MAX8212EPA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8212EPA+ 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 MAX8212EPA+ reliable?
The price and inventory of MAX8212EPA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8212EPA+ is usually 5 days.
3.What payment methods are accepted for MAX8212EPA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8212EPA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8212EPA+?
MAX8212EPA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8212EPA+ 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 MAX8212EPA+?
For technical support, including MAX8212EPA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8212EPA+ requirements.
6.How does Aetrix verify that MAX8212EPA+ is sourced from the original manufacturer or authorized distributors?
All MAX8212EPA+ 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 MAX8212EPA+ meets industry standards.
7.What is the process for return or replacement of MAX8212EPA+?
All MAX8212EPA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX8212EPA+, 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 MAX8212EPA+ part is unused and in its original packaging.
Return procedure for MAX8212EPA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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