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Analog Devices Inc./Maxim Integrated MAX6382XR22D3
- Part No.:
- MAX6382XR22D3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6382XR22D3.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,251
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Product details
Overview
The MAX6382XR22D3 from Maxim Integrated is a single-supply, active-high push-pull microprocessor supervisory circuit with factory-set 2.19V reset threshold (suffix "22"), 140ms minimum reset timeout (suffix "D3"), and guaranteed operation down to VCC = 1.0V. It monitors +1.8V to +5.0V supply rails, consumes only 3µA at +1.8V, and delivers ±2.5% threshold accuracy over –40°C to +125°C - used in portable battery-powered systems requiring reliable power-on reset and brownout protection.
For engineers reviewing the MAX6382XR22D3 datasheet, MAX6382XR22D3 pinout, MAX6382XR22D3 application, or MAX6382XR22D3 equivalent, key selection criteria include its active-high push-pull RESET output, SC70-3 package footprint, 2.19V threshold tolerance, 140ms timeout timing, and compatibility with low-voltage µP reset inputs requiring valid logic levels during power ramp.
Technical Context
The MAX6382XR22D3 implements a precision bandgap-based voltage comparator with internal 2.19V reference and a monolithic RC timer for deterministic 140ms reset assertion after VCC recovery. Its push-pull output drives high actively and guarantees correct logic state down to VCC = 1.0V without external pull-up.
No manual reset (MR) or auxiliary RESET IN input is present - this variant is optimized for fixed-threshold, single-rail monitoring only. The device uses BiCMOS process technology (647 transistors) and features negative-going VCC transient immunity up to 35µs at 100mV overdrive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.19V (nominal), ±2.5% over –40°C to +125°C - ensures stable reset assertion across industrial temperature range without calibration. |
| Reset Timeout | 140ms (minimum) - provides sufficient hold time for µP initialization before release of reset signal. |
| Supply Current | 3µA at +1.8V - enables ultra-low-power operation in battery-critical applications like wearables and IoT sensors. |
| Operating Voltage | +1.0V to +5.5V - supports valid reset output even during deep brownout conditions down to 1.0V VCC. |
| Output Type | Active-high push-pull - eliminates need for external pull-up resistor and ensures fast, rail-to-rail RESET logic transitions. |
| Reset Propagation Delay | 35µs (VCC falling) - guarantees rapid response to supply collapse, critical for real-time system fault containment. |
| Tempco | 60ppm/°C - minimizes threshold drift across temperature, preserving timing margin in thermal cycling environments. |
Pinout & Package
MAX6382XR22D3 is housed in a 3-pin SC70-3 package (pkg code X3-2), measuring 2.0mm × 2.1mm × 0.95mm, with gull-wing leads and lead-free finish. Pin 1 = VCC, Pin 2 = RESET (active-high push-pull), Pin 3 = GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Primary supply input and monitored voltage rail - powers internal circuitry and serves as reset threshold reference point. |
| 2 | RESET | Active-high push-pull output - asserts high during reset condition and deasserts low upon timeout completion; drives µP /RESET pin directly. |
| 3 | GND | Analog and digital ground reference - must be connected to system ground plane with low-impedance path to ensure noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-set 2.19V threshold | Eliminates external resistor divider; reduces BOM count and layout area in space-constrained designs. |
| 140ms minimum reset timeout | Guarantees µP core and peripherals fully stabilize before release - prevents premature execution in low-power SoCs. |
| 3µA supply current at 1.8V | Extends battery life in coin-cell or energy-harvesting systems where quiescent current dominates runtime. |
| Valid RESET down to VCC = 1.0V | Ensures deterministic reset behavior during deep undervoltage events - avoids metastability in µP reset latches. |
| ±2.5% threshold accuracy over temp | Maintains tight reset window across automotive and industrial operating ranges without derating. |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
|
Use Scenario: Battery-powered glucose monitor with ARM Cortex-M0+ MCU requiring clean power-on initialization and brownout recovery. IC Role / Device Role / Timing Role: Supervises 2.8V Li-ion supply rail and asserts active-high RESET until stable; holds reset for ≥140ms after VCC crosses 2.19V. Use Value: Prevents firmware crash during battery insertion or voltage sag, enabling certified Class II medical device reliability. |
Use Scenario: DIN-rail mounted I/O module operating in factory ambient (–25°C to +70°C) with 3.3V FPGA and analog front-end. IC Role / Device Role / Timing Role: Monitors 3.3V system rail and generates active-high reset pulse on power-up or brownout; tolerates 60ppm/°C threshold drift. Use Value: Ensures deterministic FPGA configuration and ADC calibration sequence initiation under wide-temperature industrial conditions. |
| Smart Meter Communication Units | Automotive Body Control Modules |
|
Use Scenario: NB-IoT-enabled electricity meter with dual-rail 1.8V/3.3V SoC, exposed to grid voltage fluctuations and temperature extremes. IC Role / Device Role / Timing Role: Primary supervisor for 3.3V domain; asserts RESET high during dips below 2.19V and maintains for 140ms post-recovery. Use Value: Meets IEC 62056-21 reset timing requirements while consuming <3µA - extends 10-year battery backup life. |
Use Scenario: 12V-powered BCM with LDO-regulated 2.8V microcontroller supply, subject to load-dump and cold-crank transients. IC Role / Device Role / Timing Role: Provides fail-safe reset signaling to Infineon AURIX TC3xx MCU; immune to ≤35µs negative VCC glitches at 100mV overdrive. Use Value: Eliminates false resets during engine start-up, satisfying ISO 16750-2 pulse 4a transient immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD3 | 2.93V reset threshold, same SC70-3 package, 140ms timeout, but ±3% accuracy over –40°C to +105°C. | Higher threshold unsuitable for 2.8V or lower supply rails; rated only to +105°C, not +125°C. | Select MAX809TRD3 only if system operates ≤+105°C and uses ≥3.0V supply - otherwise MAX6382XR22D3 offers tighter spec and wider temp range. |
| TPS3123E18DBVR | 2.18V threshold, SOT-23-3 package, 200ms timeout, 1.6µA ICC at 1.8V, but no guaranteed operation below VCC = 1.6V. | Lacks sub-1.6V reset validity - cannot support deep brownout detection required in ultra-low-VCC systems. | Choose TPS3123E18DBVR for lowest ICC in non-brownout-critical 2.18V applications; use MAX6382XR22D3 when VCC may dip to 1.0V with valid RESET. |
Compared with MAX809TRD3 and TPS3123E18DBVR, the MAX6382XR22D3 uniquely combines 2.19V threshold, 140ms timeout, ±2.5% accuracy over full –40°C to +125°C, and guaranteed RESET validity down to 1.0V - making it optimal for compact, battery-sensitive, wide-temperature embedded controllers.
Availability
MAX6382XR22D3 is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, smart meter communication units, and automotive body control modules requiring stable component supply with long-term lifecycle assurance.
Supply support for MAX6382XR22D3 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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and computing applications.
The MAX6381–MAX6390 family was designed specifically for low-voltage, low-power microprocessor reset supervision in space- and energy-constrained systems - emphasizing precision threshold accuracy, ultra-low ICC, and robust transient immunity.
FAQ
What is the exact reset threshold voltage of MAX6382XR22D3?
The MAX6382XR22D3 has a factory-set nominal reset threshold of 2.19V, with guaranteed tolerance of ±2.5% over the full operating temperature range (–40°C to +125°C). This corresponds to a minimum threshold of 2.13V and maximum of 2.24V at temperature extremes, per the Reset Threshold table in the datasheet.
Does MAX6382XR22D3 support manual reset functionality?
No, the MAX6382XR22D3 does not include a manual reset (MR) input. It is a dedicated single-rail supervisory circuit with only VCC monitoring and active-high push-pull RESET output. Manual reset capability is available only in variants such as MAX6384, MAX6385, MAX6386, and MAX6390 - not in MAX6382XR22D3.
What package type and dimensions does MAX6382XR22D3 use?
The MAX6382XR22D3 is packaged in a 3-pin SC70-3 (pkg code X3-2) with gull-wing leads, measuring 2.0mm × 2.1mm × 0.95mm. Pin 1 is VCC, Pin 2 is active-high RESET, and Pin 3 is GND - confirmed by the "Pin Configurations" section and package outline drawing 21-0075.
Can MAX6382XR22D3 operate reliably below 1.8V supply?
Yes, the MAX6382XR22D3 is fully specified to operate down to VCC = 1.0V, with guaranteed valid RESET output logic state throughout that range. Its supply current remains at 3µA at +1.8V and scales predictably downward - enabling use in ultra-low-voltage brownout detection scenarios where other supervisors fail.
Is MAX6382XR22D3 pin-compatible with older Maxim reset ICs like MAX809?
Yes, the MAX6382XR22D3 is pin-compatible with MAX809/MAX810 in the SC70-3 package (Pin 1 = VCC, Pin 2 = RESET, Pin 3 = GND), but differs in reset polarity (active-high vs. MAX809's active-low) and threshold (2.19V vs. 2.93V/3.08V). Direct replacement requires verifying µP /RESET pin logic polarity and voltage margin.
MAX6382XR22D3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.19V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6382XR22D3 FAQ
1.How can I place an order for MAX6382XR22D3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6382XR22D3 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 MAX6382XR22D3 reliable?
The price and inventory of MAX6382XR22D3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6382XR22D3 is usually 5 days.
3.What payment methods are accepted for MAX6382XR22D3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6382XR22D3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6382XR22D3?
MAX6382XR22D3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6382XR22D3 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 MAX6382XR22D3?
For technical support, including MAX6382XR22D3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6382XR22D3 requirements.
6.How does Aetrix verify that MAX6382XR22D3 is sourced from the original manufacturer or authorized distributors?
All MAX6382XR22D3 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 MAX6382XR22D3 meets industry standards.
7.What is the process for return or replacement of MAX6382XR22D3?
All MAX6382XR22D3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6382XR22D3, 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 MAX6382XR22D3 part is unused and in its original packaging.
Return procedure for MAX6382XR22D3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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