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Analog Devices Inc./Maxim Integrated MAX809SEUR.G096
- Part No.:
- MAX809SEUR.G096
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- -
- Datasheet:
-
MAX809SEUR.G096.pdf
- Description:
- IC SUPERVISOR 3PIN MPU RESET
- Quantity:
- Payment:
- Shipping:
Inventory:1,215
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Product details
Overview
MAX809SEUR.G096 from Maxim Integrated is a 3-pin SOT23-3 microprocessor supervisory circuit with push-pull active-low RESET output, 2.93V reset threshold (±1.5% over -40°C to +105°C), 140ms minimum reset timeout, 12µA supply current at +25°C, and guaranteed reset validity down to VCC = +1V - used for reliable power-on/brownout reset assertion in embedded controllers and portable instrumentation.
For engineers reviewing the MAX809SEUR.G096 datasheet, MAX809SEUR.G096 pinout, MAX809SEUR.G096 application, or MAX809SEUR.G096 equivalent, this page delivers verified electrical parameters, package mapping to SOT23-3, confirmed reset timing behavior, thermal operating range (-40°C to +105°C), and real-world interface considerations for µP reset line conditioning and transient immunity.
Technical Context
The MAX809SEUR.G096 integrates a precision voltage comparator with temperature-compensated reference (30ppm/°C tempco) and a monostable timer to generate a minimum 140ms active-low reset pulse after VCC rises above 2.93V. Its push-pull output drives directly into CMOS/TTL inputs without external pull-up components.
Designed for single-supply monitoring of +2.5V/+3.0V/+3.3V systems, it ignores fast VCC transients ≤20µs (at 100mV overdrive) and maintains valid logic state across full VCC range from 1.2V to 5.5V - enabling robust operation during battery discharge or rail collapse scenarios.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.93V ±1.5% (guaranteed over -40°C to +105°C; enables precise brownout detection at 3.3V nominal rails) |
| Reset Timeout | 140ms min (ensures µP completes internal initialization before release) |
| Supply Current | 12µA at +25°C (supports multi-year battery life in portable equipment) |
| VCC Operating Range | 1.2V to 5.5V (valid reset assertion even during deep brownout or partial power-up) |
| Output Type | Push-pull active-low (drives RESET line directly; no external pull-up required) |
| Temperature Range | -40°C to +105°C (qualified for industrial and automotive under-hood environments) |
| Transient Immunity | Rejects VCC glitches ≤20µs at 100mV overdrive (prevents spurious resets from noise) |
Pinout & Package
MAX809SEUR.G096 is housed in a RoHS-compliant 3-pin SOT23-3 package (JEDEC MO-178AA), 2.9mm × 1.6mm × 1.1mm body, gull-wing leads, 0.95mm pitch. Thermal resistance θJA = 250°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (RESET) | Active-low push-pull reset output | Drives low during reset; high-impedance when deasserted; sinks ≥1.2mA, sources ≥800µA |
| 2 (GND) | Ground reference | Return path for internal comparator and output stage; must be connected to system ground plane |
| 3 (VCC) | Supply input | Monitored power rail; powers internal circuitry; valid operation from 1.2V to 5.5V |
Key Features
| Feature | Design Value |
|---|---|
| Precision reset threshold | 2.93V with ±1.5% tolerance over full temperature range - eliminates need for external trimming or calibration |
| No external components required | Self-contained reset generation - reduces BOM count and PCB area vs. discrete RC+comparator solutions |
| Guaranteed reset validity to VCC = +1V | Ensures deterministic reset state during deep undervoltage events where µP may still retain register contents |
| Low quiescent current | 12µA typical at +25°C - extends battery runtime in always-on sensor nodes and handheld instruments |
| Fast transient rejection | Immune to VCC glitches ≤20µs duration at 100mV overdrive - prevents false resets in electrically noisy environments |
Applications
| Industrial PLC Controllers | Portable Medical Monitors |
|---|---|
|
Use Scenario: Programmable logic controller operating from 3.3V SMPS with variable load-induced rail sag. IC Role / Device Role / Timing Role: Supervisory circuit asserting active-low reset to ARM Cortex-M7 MCU during brownout events. Use Value: Prevents firmware corruption by holding MCU in reset until 3.3V rail stabilizes above 2.93V for ≥140ms. |
Use Scenario: Battery-powered ECG monitor with Li-ion cell discharging from 4.2V to 2.8V. IC Role / Device Role / Timing Role: Reset generator monitoring 3.3V LDO output derived from battery. Use Value: Ensures clean boot sequence even as battery voltage crosses 3.0V threshold, avoiding partial initialization. |
| Automotive Body Control Modules | Smart Energy Meters |
|
Use Scenario: 12V-to-3.3V DC/DC-powered BCM exposed to load-dump and cold-crank transients. IC Role / Device Role / Timing Role: Power supervisor interfacing with Infineon AURIX TC3xx via dedicated reset pin. Use Value: Maintains reset assertion through 100ms cold-crank dips to 6V, then holds for 140ms post-recovery. |
Use Scenario: DIN-rail mounted meter with isolated 3.3V auxiliary supply powered from mains. IC Role / Device Role / Timing Role: Brownout detector for TI MSP430F676x metrology MCU. Use Value: Guarantees EEPROM write completion before reset during AC line sags below 2.93V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TEUR+T | Same SOT23-3 package, identical 2.93V threshold and 140ms timeout, but lead-free (RoHS-compliant +T suffix) | Direct drop-in replacement where Pb-free compliance is mandatory per IPC-J-STD-609 | Select MAX809TEUR+T for new designs requiring RoHS conformance; MAX809SEUR.G096 retains legacy leaded finish. |
| TPS3808G12DBVR | TI device with 3.08V threshold, 200ms timeout, 1.8µA IQ, and enable input - not pin-compatible | Requires PCB modification; suited for ultra-low-power designs needing programmable delay or enable control | Choose TPS3808G12DBVR only when extended timeout or enable functionality justifies layout change and higher cost. |
Compared with MAX809SEUR.G096, MAX809TEUR+T offers identical electrical behavior with RoHS compliance, while TPS3808G12DBVR trades pin compatibility for lower quiescent current and configurable features - making MAX809SEUR.G096 optimal for cost-sensitive, drop-in industrial replacements.
Availability
MAX809SEUR.G096 is available at Aetrix Electronics and suitable for industrial controllers, portable medical devices, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX809SEUR.G096 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, automotive, and communications markets.
MAX809SEUR.G096 belongs to Maxim's microprocessor supervisory product line, designed specifically for deterministic power-on reset and brownout protection in resource-constrained embedded systems with strict reliability requirements.
FAQ
What is the exact reset threshold voltage of MAX809SEUR.G096 and how tightly is it specified?
The MAX809SEUR.G096 has a nominal reset threshold of 2.93V, with a guaranteed tolerance of ±1.5% over the full operating temperature range of -40°C to +105°C. This specification ensures consistent brownout detection across environmental conditions without requiring external calibration - critical for repeatable system startup behavior in industrial and automotive applications where MAX809SEUR.G096 is deployed.
Does MAX809SEUR.G096 require an external pull-up resistor on its RESET pin?
No, MAX809SEUR.G096 does not require an external pull-up resistor because it features a push-pull output stage. The RESET pin actively drives high or low depending on VCC status, eliminating dependency on external components - unlike open-drain variants such as MAX803. This simplifies design and improves noise immunity in systems using MAX809SEUR.G096 as the primary reset supervisor.
Can MAX809SEUR.G096 operate reliably when VCC drops below 2.0V?
Yes, MAX809SEUR.G096 guarantees correct reset output logic state down to VCC = +1.2V (minimum specified operating voltage), and its reset comparator remains functional with valid output down to VCC = +1V. This allows MAX809SEUR.G096 to assert reset during deep brownouts where other supervisors may fail - a key capability validated in battery-backed and automotive cold-crank scenarios.
What is the maximum allowable VCC transient duration that MAX809SEUR.G096 will ignore without asserting reset?
At a 100mV overdrive (i.e., VCC falling 100mV below the 2.93V threshold), MAX809SEUR.G096 rejects transients up to 20µs in duration at +25°C. This transient immunity is maintained across its full temperature range and enables reliable operation in electrically noisy environments - such as motor drive or switching power supply proximity - where MAX809SEUR.G096 serves as the sole reset source.
Is MAX809SEUR.G096 pin-compatible with other members of the MAX809 family like MAX809LEUR-T?
Yes, MAX809SEUR.G096 is fully pin-compatible with all SOT23-3 variants in the MAX809 family (e.g., MAX809LEUR-T, MAX809MEUR-T), sharing identical 3-pin pinout (VCC, GND, RESET), footprint, and thermal characteristics. Only the reset threshold differs between variants - allowing direct substitution in existing layouts when adjusting for different supply voltages, provided the new threshold meets system requirements for MAX809SEUR.G096's target application.
MAX809SEUR.G096 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- -
- Number of Voltages Monitored:
- -
- Voltage - Threshold:
- -
- Output:
- -
- Reset:
- -
- Reset Timeout:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX809SEUR.G096 FAQ
1.How can I place an order for MAX809SEUR.G096 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX809SEUR.G096 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 MAX809SEUR.G096 reliable?
The price and inventory of MAX809SEUR.G096 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX809SEUR.G096 is usually 5 days.
3.What payment methods are accepted for MAX809SEUR.G096?
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MAX809SEUR.G096 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX809SEUR.G096 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 MAX809SEUR.G096?
For technical support, including MAX809SEUR.G096 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX809SEUR.G096 requirements.
6.How does Aetrix verify that MAX809SEUR.G096 is sourced from the original manufacturer or authorized distributors?
All MAX809SEUR.G096 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 MAX809SEUR.G096 meets industry standards.
7.What is the process for return or replacement of MAX809SEUR.G096?
All MAX809SEUR.G096 units undergo pre-shipment inspection (PSI). If there is an issue with MAX809SEUR.G096, 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 MAX809SEUR.G096 part is unused and in its original packaging.
Return procedure for MAX809SEUR.G096:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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