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Analog Devices Inc./Maxim Integrated MXD1810XR41+
- Part No.:
- MXD1810XR41+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- -
- Datasheet:
-
MXD1810XR41+.pdf
- Description:
- IC MPU RESET CIRC 4.12V SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,378
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Product details
Overview
MXD1810XR41+ from Maxim Integrated is a precision 5V-system microprocessor reset supervisor IC with active-low open-drain RESET output, factory-trimmed 4.12V reset threshold (±2.5% over temperature), 100ms minimum reset timeout, and 4μA supply current. It monitors VCC in industrial controllers and portable equipment to prevent erroneous code execution during brownout or power-up.
For engineers reviewing the MXD1810XR41+ datasheet, MXD1810XR41+ pinout, MXD1810XR41+ application, or MXD1810XR41+ equivalent, key selection criteria include reset threshold accuracy at +4.12V, guaranteed RESET validity down to VCC = +1V, SC70-3 package compatibility, and absence of manual-reset debouncing (unlike MXD1813/MXD1818).
Technical Context
This device implements a precision bandgap-based voltage comparator with hysteresis-free threshold detection and an internal monostable timer for fixed 100ms reset assertion after VCC recovery. Its open-drain output includes a 5.5kΩ internal pullup resistor, eliminating external components for μP interface.
The MXD1810XR41+ operates across -40°C to +105°C with transient immunity up to 100µs at 100mV overdrive, and guarantees correct logic state down to VCC = +1V - critical for low-voltage brownout detection in battery-backed systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.12V (factory-set, ±2.5% over -40°C to +105°C) - ensures reliable reset assertion before 5V system brownout |
| Reset Timeout Period | 100ms minimum - meets JEDEC JESD84-B4.8 power-up stabilization requirements for 5V μPs |
| Supply Current | 4μA typical at +3.6V - enables multi-year operation in coin-cell–powered monitoring circuits |
| VCC Operating Range | +1.0V to +5.5V - supports valid reset signaling even during deep brownout down to 1V |
| Output Type | Active-low open-drain with 5.5kΩ internal pullup - interfaces directly with bidirectional μP reset pins without external resistors |
| Package | 3-pin SC70 (X3-2 outline) - 2.0mm × 2.1mm footprint for space-constrained embedded PCBs |
| Temperature Range | -40°C to +105°C - qualified for industrial and automotive under-hood environments |
Pinout & Package
MXD1810XR41+ uses a 3-pin SC70 package (outline X3-2, land pattern 90-0208), optimized for high-density layouts. Pin 1 is RESET (open-drain active-low), Pin 2 is VCC (supply and threshold monitor input), and Pin 3 is GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Open-drain active-low reset output; sinks current when asserted; pulled high internally to VCC via 5.5kΩ resistor |
| 2 | VCC | Primary supply input and reset-threshold reference node; monitored continuously for voltage drop below 4.12V |
| 3 | GND | System ground reference for comparator and output stage; must be low-impedance for accurate threshold sensing |
Key Features
| Feature | Design Value |
|---|---|
| No external components required | Integrated 5.5kΩ pullup and precision voltage reference eliminate discrete resistors and capacitors |
| Power-supply transient immunity | Rejects negative VCC glitches ≤100µs at 100mV overdrive - prevents false resets from switching noise |
| Guaranteed RESET validity to VCC = +1V | Ensures deterministic reset state during deep brownout, unlike many supervisors failing below 1.8V |
| Factory-trimmed threshold accuracy | ±2.5% over full temperature range - eliminates need for post-production calibration in production test |
| Low-power operation | 4μA typical ICC - extends battery life in portable instrumentation and remote sensors |
Applications
| Industrial Controllers | Portable Test Equipment |
|---|---|
Use Scenario: PLC I/O modules operating from unregulated 5V rails subject to load-induced sags. IC Role / Device Role / Timing Role: Supervisory circuit asserting active-low RESET to ARM Cortex-M4 core until VCC stabilizes above 4.12V for ≥100ms. Use Value: Prevents firmware lockup during field-deployed brownouts by guaranteeing reset hold time exceeds processor's internal POR requirement. |
Use Scenario: Handheld multimeter powered by two AA cells, where VCC drops from 3.2V to 2.8V during measurement bursts. IC Role / Device Role / Timing Role: Reset supervisor monitoring decaying 5V LDO output derived from battery; asserts RESET when LDO falls below 4.12V. Use Value: Enables graceful shutdown and EEPROM save before voltage collapse, using only 4μA quiescent current. |
| Set-Top Box Power Management | Critical μP Monitoring |
Use Scenario: Consumer STB with dual-rail 5V/3.3V power tree where 5V rail powers main SoC and memory. IC Role / Device Role / Timing Role: Dedicated 5V supervisor (MXD1810XR41+) ensuring SoC reset occurs before 3.3V rail collapses during AC dropout. Use Value: Eliminates race condition between rail sequencing and guarantees deterministic boot state after power interruption. |
Use Scenario: Medical infusion pump controller requiring fail-safe restart on any undervoltage event. IC Role / Device Role / Timing Role: Primary reset source for safety-critical PIC18F microcontroller; asserts RESET within 5µs of VCC falling below 4.12V. Use Value: Meets IEC 62304 Class C software safety requirements by providing hardware-enforced reset independent of firmware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD3+T | 4.63V reset threshold, SOT23-3 package, no internal pullup - requires external 100kΩ pullup | Higher threshold suits 5V systems with tighter tolerance margins; lacks SC70 option | Select when board layout already uses SOT23 and higher 4.63V trip point is preferred for margin against ripple |
| TPS3808G33DBVR | 3.08V threshold, adjustable timeout (200ms default), 1.5μA ICC, SOT23-6 - larger footprint, different pinout | Optimized for 3.3V systems; lower current but incompatible pin mapping and voltage range | Choose only for new designs targeting ultra-low power and 3.3V rails; not drop-in for MXD1810XR41+ |
Compared with MAX809TRD3+T and TPS3808G33DBVR, MXD1810XR41+ uniquely combines 4.12V precision threshold, SC70-3 footprint, integrated pullup, and 4μA consumption - making it optimal for space-constrained 5V industrial controllers requiring minimal BOM count.
Availability
MXD1810XR41+ is available at Aetrix Electronics and suitable for industrial controllers, portable test equipment, set-top box power management, and critical μP monitoring requiring stable component supply across extended temperature ranges.
Supply support for MXD1810XR41+ 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, communications, and computing applications, with emphasis on reliability and integration.
The MXD1810–MXD1818 family targets cost-sensitive, space-constrained μP supervisory needs in 5V and 3.3V systems - delivering factory-trimmed accuracy and zero-external-component operation.
FAQ
What is the exact reset threshold voltage of MXD1810XR41+ and how is it trimmed?
The MXD1810XR41+ has a factory-trimmed reset threshold of 4.12V, with ±2.5% accuracy guaranteed over -40°C to +105°C. This value is laser-trimmed during wafer sort and verified per the Reset Threshold Table in the datasheet; the "R41" suffix explicitly denotes the 4.12V variant. No external adjustment is possible or required.
Does MXD1810XR41+ support manual reset functionality via the RESET pin?
No, MXD1810XR41+ does not include manual reset debouncing. Unlike MXD1813/MXD1818 variants, its RESET pin is strictly an output-only open-drain node. Applying an external low signal to RESET will not trigger a reset pulse - it is not designed for push-button initiation.
Can MXD1810XR41+ operate reliably when VCC drops below 2.0V?
Yes. MXD1810XR41+ guarantees correct RESET/RESET logic state down to VCC = +1.0V, as confirmed in Absolute Maximum Ratings and Electrical Characteristics. This allows robust brownout detection in systems where 5V rails decay slowly, such as battery-backed supplies or unregulated adapters.
What is the purpose of the internal 5.5kΩ pullup resistor in MXD1810XR41+?
The internal 5.5kΩ pullup resistor on the RESET pin enables direct interface with microprocessors having bidirectional reset inputs (e.g., Motorola 68HC11), eliminating the need for an external pullup. It ensures RESET remains high when deasserted, while allowing the IC or μP to drive the line low - reducing BOM count and PCB area.
Is MXD1810XR41+ compatible with standard SC70-3 footprints and reflow profiles?
Yes. MXD1810XR41+ uses the industry-standard SC70-3 package (outline X3-2, land pattern 90-0208) and is qualified for lead-free reflow per JEDEC J-STD-020. Its maximum junction temperature is +150°C, and peak reflow temperature is rated to +300°C for 10 seconds - fully compatible with standard Pb-free assembly processes.
MXD1810XR41+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- -
- Number of Voltages Monitored:
- -
- Voltage - Threshold:
- -
- Output:
- -
- Reset:
- -
- Reset Timeout:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MXD1810XR41+ FAQ
1.How can I place an order for MXD1810XR41+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MXD1810XR41+ 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 MXD1810XR41+ reliable?
The price and inventory of MXD1810XR41+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXD1810XR41+ is usually 5 days.
3.What payment methods are accepted for MXD1810XR41+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXD1810XR41+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXD1810XR41+?
MXD1810XR41+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXD1810XR41+ 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 MXD1810XR41+?
For technical support, including MXD1810XR41+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXD1810XR41+ requirements.
6.How does Aetrix verify that MXD1810XR41+ is sourced from the original manufacturer or authorized distributors?
All MXD1810XR41+ 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 MXD1810XR41+ meets industry standards.
7.What is the process for return or replacement of MXD1810XR41+?
All MXD1810XR41+ units undergo pre-shipment inspection (PSI). If there is an issue with MXD1810XR41+, 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 MXD1810XR41+ part is unused and in its original packaging.
Return procedure for MXD1810XR41+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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