My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX8211EPA
- Part No.:
- MAX8211EPA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX8211EPA.pdf
- Description:
- IC SUPERVISOR PROG VOLT DETECT
- Quantity:
- Payment:
- Shipping:
Inventory:330
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX8211EPA from Maxim Integrated is a CMOS micropower voltage detector IC designed to monitor supply rails and trigger microprocessor power-fail warnings. It features a 1.15V internal bandgap reference, ±40mV threshold accuracy (±3.5%), 5µA quiescent current, 7mA current-limited open-drain output sink, and operates across 2.0V–16.5V supply range. Used in undervoltage detection for logic-supply monitoring in industrial embedded systems.
For engineers reviewing the MAX8211EPA datasheet, MAX8211EPA pinout, MAX8211EPA application, or MAX8211EPA equivalent, key selection criteria include programmable trip voltage via external resistors, hysteresis-enabled noise immunity, -40°C to +85°C extended temperature operation, and compatibility with legacy ICL8211-based designs requiring low-power, precision voltage supervision.
Technical Context
The MAX8211EPA implements a comparator-based voltage detection architecture with an internal 1.15V reference and open-drain n-channel output stage that activates when THRESH voltage falls below the reference. Its hysteresis output (HYST) provides positive feedback capability up to 10mA, enabling stable switching in noisy environments.
Unlike the MAX8212 variant, the MAX8211EPA delivers a current-limited 7mA sink on OUT, allowing direct LED drive without series resistance. Threshold accuracy is maintained over temperature (±200ppm/°C) and supply variation (±0.2mV over 4.5V–5.5V), supporting reliable undervoltage detection in safety-critical power monitoring circuits.
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 - enables battery-backed or energy-constrained applications with minimal standby drain |
| Threshold Accuracy | ±40mV (±3.5%) - ensures precise trip-point definition for logic-supply undervoltage detection at 4.5V |
| Output Sink Current | 7mA typical - allows direct interface to microcontroller NMI inputs or LEDs without external buffering |
| Operating Temperature | -40°C to +85°C - qualified for industrial-grade environmental stress without derating |
| Hysteresis Output Drive | Up to 10mA - supplies configurable positive feedback to resistor divider for noise-immune switching |
| Threshold Tempco | ±200ppm/°C - limits drift to <±12mV over full temperature range, preserving detection margin |
Pinout & Package
MAX8211EPA is housed in an 8-pin plastic DIP package (P8-1), with lead spacing of 0.300", body width 0.355", and through-hole mounting. Pin 1 is THRESH, Pin 2 is HYST, Pin 3 is N.C., Pin 4 is V+, Pin 5 is GND, Pin 6 is N.C., Pin 7 is N.C., Pin 8 is OUT.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| THRESH (Pin 1) | Comparator input | Accepts divided-down supply voltage; triggers output when <1.15V; input leakage ≤20nA enables high-R divider networks |
| HYST (Pin 2) | Hysteresis output | Open-drain p-channel output providing up to 10mA positive feedback to THRESH node for noise immunity |
| V+ (Pin 4) | Power supply | Primary supply input (2.0V–16.5V); powers internal reference and comparator; not internally regulated |
| GND (Pin 5) | Ground reference | Analog and digital ground return; must be low-impedance path to avoid threshold error from IR drop |
| OUT (Pin 8) | Alarm output | Open-drain n-channel output sinking up to 7mA; asserts low during undervoltage condition; requires external pull-up |
Key Features
| Feature | Design Value |
|---|---|
| Programmable trip voltage | Set via two external resistors (R1/R2) referenced to 1.15V internal reference - eliminates need for trim pots or multiple fixed-threshold parts |
| Current-limited output | 7mA max sink on OUT - prevents latch-up or damage when driving capacitive loads or long traces |
| On-board hysteresis output | HYST pin delivers up to 10mA with <±0.2V saturation - enables precise dead-band control without external op-amps |
| Low-leakage THRESH input | ≤20nA input current - permits use of >1MΩ resistor dividers, reducing system power consumption by >90% vs bipolar predecessors |
| ICL8211 plug-in replacement | Pin-compatible with ICL8211 in 8-pin DIP footprint - enables drop-in upgrade to lower IQ, tighter tolerance, and higher hysteresis drive |
Applications
| Logic-Supply Undervoltage Detection | Battery Backup Switchover |
|---|---|
Use Scenario: Monitoring a 5.0V nominal logic supply to detect drop below 4.5V VMIN specification. IC Role / Device Role / Timing Role: Voltage detector asserting NMI interrupt to microcontroller when supply falls below programmed threshold. Use Value: Prevents data corruption by triggering controlled shutdown before logic levels violate VIH/VIL specs; hysteresis avoids chatter near trip point. | Use Scenario: Detecting main power failure in a system with backup battery and automatic switchover circuitry. IC Role / Device Role / Timing Role: Supervisory IC generating clean, debounced power-fail signal to enable seamless transition to backup source. Use Value: 5µA quiescent current minimizes battery drain during backup mode; 7mA output drives MOSFET gate directly without level-shifting. |
| Industrial Power-Supply Fault Monitoring | Low-Battery Detection in Portable Devices |
Use Scenario: Continuous monitoring of 12V DC input in PLC I/O modules to flag brownout or overvoltage events. IC Role / Device Role / Timing Role: Programmable voltage supervisor interfacing with watchdog timer and fault-reporting UART. Use Value: Wide 2.0V–16.5V supply range accommodates varying field voltages; ±40mV accuracy ensures compliance with IEC 61000-4-11 immunity thresholds. | Use Scenario: Detecting end-of-life voltage in 3-cell alkaline battery packs (4.5V cutoff) for handheld medical instruments. IC Role / Device Role / Timing Role: Low-power voltage monitor triggering battery-replace alert and disabling non-critical peripherals. Use Value: -40°C to +85°C rating ensures reliability across clinical environments; THRESH input leakage <20nA preserves battery life for >1 year in sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX8211CPA | Same electrical specs but rated for 0°C to +70°C commercial temperature range | Not suitable for industrial environments with ambient extremes or thermal cycling | Select MAX8211EPA when operating outside 0°C–70°C or requiring extended reliability validation |
| TLV809E33DBZR | Fixed 3.3V threshold, SOT-23-3 package, 1.6µA IQ, no hysteresis output | Lacks programmability and HYST pin; limited to single-rail detection without external components | Choose MAX8211EPA when adjustable trip point, hysteresis control, or DIP prototyping is required |
Compared with MAX8211CPA, the MAX8211EPA offers extended temperature operation critical for factory automation; versus TLV809E33DBZR, it provides full programmability, integrated hysteresis drive, and robust 8-pin DIP layout for test and repair - making it optimal for industrial supervisory design where flexibility and ruggedness are prioritized.
Availability
MAX8211EPA is available at Aetrix Electronics and suitable for industrial power-supply fault monitoring, logic-supply undervoltage detection, and battery-backup switchover applications requiring stable component supply across extended temperature ranges.
Supply support for MAX8211EPA 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 analog and mixed-signal ICs for power management, sensing, and interface applications.
The MAX8211 product line delivers precision, low-power voltage supervision ICs targeting microprocessor reset and power-fail warning functions in industrial, medical, and communications equipment.
FAQ
What is the function of the HYST pin on the MAX8211EPA?
The HYST pin on the MAX8211EPA is an open-drain p-channel output that supplies positive feedback current (up to 10mA) to the THRESH node. This creates a programmable hysteresis band-typically ~75mV in logic-supply circuits-to prevent output oscillation due to noise or slow-rising/falling supply edges. It does not require external biasing and operates referenced to V+.
Can the MAX8211EPA replace the ICL8211 in existing designs?
Yes, the MAX8211EPA is a pin-compatible, plug-in replacement for the ICL8211 in 8-pin DIP sockets. It improves upon the bipolar predecessor with 5µA vs. ~100µA quiescent current, ±40mV vs. ±100mV threshold accuracy, and 10mA vs. 21µA hysteresis drive. No PCB changes are needed, though resistor values may be optimized for lower system current.
What is the maximum output sink current of the MAX8211EPA's OUT pin?
The MAX8211EPA's OUT pin is designed with internal current limiting and delivers a guaranteed 7mA sink current under all operating conditions. The datasheet specifies this as typical, with absolute maximum output current capped at 30mA to protect the output transistor-making it safe for direct LED drive or microcontroller NMI input assertion without external current-limiting resistors.
How does the MAX8211EPA achieve programmable trip voltage?
The MAX8211EPA achieves programmable trip voltage using its internal 1.15V bandgap reference and external resistor divider network connected to the THRESH pin. By selecting R1 and R2 values per the formula VTRIP = 1.15V × (1 + R1/R2), designers set the exact undervoltage threshold. Input leakage <20nA enables high-value resistors (e.g., 2.2MΩ/750kΩ), minimizing divider current and system power loss.
Is the MAX8211EPA suitable for automotive applications?
No, the MAX8211EPA is not qualified for automotive applications. Its specified operating temperature range is -40°C to +85°C (industrial grade), and it lacks AEC-Q100 qualification, automotive-specific reliability testing, or PPAP documentation. For automotive use, consider Maxim's automotive-grade supervisors such as the MAX6326 or MAX6369 series, which meet extended temperature and qualification requirements.
MAX8211EPA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- 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
MAX8211EPA FAQ
1.How can I place an order for MAX8211EPA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8211EPA 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 MAX8211EPA reliable?
The price and inventory of MAX8211EPA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8211EPA is usually 5 days.
3.What payment methods are accepted for MAX8211EPA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8211EPA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8211EPA?
MAX8211EPA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8211EPA 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 MAX8211EPA?
For technical support, including MAX8211EPA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8211EPA requirements.
6.How does Aetrix verify that MAX8211EPA is sourced from the original manufacturer or authorized distributors?
All MAX8211EPA 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 MAX8211EPA meets industry standards.
7.What is the process for return or replacement of MAX8211EPA?
All MAX8211EPA units undergo pre-shipment inspection (PSI). If there is an issue with MAX8211EPA, 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 MAX8211EPA part is unused and in its original packaging.
Return procedure for MAX8211EPA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX8211EPA Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
