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Analog Devices Inc./Maxim Integrated MAX6383XR22D3+T
- Part No.:
- MAX6383XR22D3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6383XR22D3+T.pdf
- Description:
- IC MPU/RESET CIRC 2.19V SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MAX6383XR22D3+T from Maxim Integrated is a low-power, open-drain active-low microprocessor supervisory circuit with factory-set 2.19V reset threshold (±2.5% over -40°C to +125°C), 140ms minimum reset timeout, and guaranteed valid reset output down to VCC = 1.0V. It monitors single-supply rails in battery-powered systems and portable electronics where ultra-low quiescent current (3μA at 1.8V) and robust brownout immunity are critical.
For engineers reviewing the MAX6383XR22D3+T datasheet, MAX6383XR22D3+T pinout, MAX6383XR22D3+T application, or MAX6383XR22D3+T equivalent, key selection criteria include its 3-pin SC70 open-drain output architecture, precise 2.19V threshold for 2.2V/2.5V system monitoring, 140ms timeout for reliable boot sequencing, and compatibility with legacy MAX809/MAX6326 families in space-constrained designs.
Technical Context
The MAX6383XR22D3+T implements a precision bandgap-based voltage comparator with ±2.5% threshold accuracy across -40°C to +125°C and 60ppm/°C tempco. Its internal timer generates a fixed 140ms minimum reset assertion period after VCC rises above 2.19V, independent of supply ramp rate.
As an open-drain active-low device, it requires an external pullup resistor on the RESET pin and guarantees correct logic state down to VCC = 1.0V-enabling valid reset signaling during deep brownout conditions without external support circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.19V (factory-trimmed, ±2.5% over full temperature range) |
| Reset Timeout | 140ms min (ensures μP completes power-up initialization before release) |
| Supply Current | 3μA at VCC = 1.8V (enables multi-year battery life in always-on sensors) |
| Operating Voltage | 1.0V to 5.5V (valid reset assertion down to 1.0V supports ultra-low-VCC brownout detection) |
| Output Type | Open-drain active-low (requires external pullup; enables wired-OR reset bus sharing) |
| Temp Range | -40°C to +125°C (qualified for automotive under-hood and industrial control environments) |
| Package | 3-pin SC70 (1.25mm × 0.85mm footprint; compatible with high-density PCB layouts) |
Pinout & Package
MAX6383XR22D3+T uses a 3-pin SC70 package (outline 21-0075, land pattern 90-0208) with exposed pad not electrically connected. Pin 1 = RESET (open-drain active-low), Pin 2 = VCC, Pin 3 = GND.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Open-drain active-low reset output; must be pulled up externally to VCC or another rail; sinks ≥80µA at VCC ≥1.0V |
| 2 | VCC | Power supply input and monitored voltage source; operates from 1.0V to 5.5V |
| 3 | GND | Ground reference for all internal circuitry and reset comparator |
Key Features
| Feature | Design Value |
|---|---|
| Precision reset threshold | 2.19V with ±2.5% tolerance over -40°C to +125°C ensures consistent trip point across automotive/industrial thermal cycles |
| Ultra-low supply current | 3μA at 1.8V enables integration into energy-harvesting and coin-cell-powered IoT endpoints |
| Valid reset down to 1.0V | Guarantees clean reset assertion during severe brownout events before VCC collapses completely |
| Negative-going transient immunity | Rejects VCC glitches ≤35µs at 100mV overdrive, reducing false resets in noisy power environments |
| Small-footprint packaging | 3-pin SC70 (1.25mm × 0.85mm) saves board area versus SOT-23 alternatives while maintaining reflow compatibility |
Applications
| Portable Medical Sensors | Battery-Powered Telematics |
|---|---|
Use Scenario: Continuous glucose monitor operating from CR2032 coin cell with 2.2V nominal voltage. IC Role / Device Role / Timing Role: Monitors VCC rail and asserts open-drain RESET to microcontroller upon voltage drop below 2.19V during battery depletion. Use Value: 3μA quiescent current extends battery life beyond 2 years; 140ms timeout prevents premature wake-up during shallow dips. | Use Scenario: Automotive OBD-II tracker powered by 12V battery via 3.3V LDO with transient load dumps. IC Role / Device Role / Timing Role: Detects brownout on 3.3V rail and holds microcontroller in reset until stable post-dip. Use Value: ±2.5% threshold accuracy ensures reliable trip at 2.19V across -40°C to +125°C; open-drain output interfaces directly with 3.3V logic. |
| Industrial PLC I/O Modules | Wearables with Dual-Rail Power |
Use Scenario: DIN-rail mounted controller with 24V input converted to 2.5V core supply. IC Role / Device Role / Timing Role: Supervises 2.5V domain and forces safe shutdown when rail sags below 2.19V during ESD event. Use Value: Valid reset down to VCC = 1.0V ensures deterministic behavior even during catastrophic rail collapse. | Use Scenario: Smartwatch using separate 1.8V sensor rail and 3.0V display rail. IC Role / Device Role / Timing Role: Single-point supervision of 1.8V rail with open-drain RESET shared across multiple peripherals. Use Value: 3-pin SC70 footprint minimizes layout area; open-drain allows wired-OR connection to shared reset bus. |
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 | Same 2.19V threshold and 140ms timeout, but push-pull active-low output; no external pullup required | Suitable for systems lacking pullup resources or requiring stronger drive capability | Select MAX809TRD3+T when board-level pullup resistors are unavailable or higher sink current (>3.2mA) is needed |
| TPS3808G12QDBVRQ1 | 2.15V threshold (±0.5%), 200ms timeout, AEC-Q100 Grade 1; higher accuracy but longer delay | Preferred for automotive ADAS modules requiring tighter threshold tolerance and extended qualification | Choose TPS3808G12QDBVRQ1 when ±0.5% threshold accuracy and automotive-grade reliability outweigh footprint and current trade-offs |
Compared with MAX809TRD3+T, MAX6383XR22D3+T saves board space via smaller SC70 package and reduces system current via lower 3μA quiescent draw, while TPS3808G12QDBVRQ1 provides superior threshold stability for safety-critical automotive use cases at the cost of higher power and larger 5-pin SOT-23 footprint.
Availability
MAX6383XR22D3+T is available at Aetrix Electronics and suitable for portable medical sensors, battery-powered telematics, industrial PLC I/O modules, and wearables requiring stable component supply with long-term lifecycle support.
Supply support for MAX6383XR22D3+T 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 demanding industrial, automotive, and computing applications.
The MAX6381–MAX6390 family delivers ultra-low-power, factory-trimmed reset supervision for space- and energy-constrained microprocessor systems, with variants optimized for single/dual-rail monitoring and diverse output configurations.
FAQ
What is the exact reset threshold voltage of MAX6383XR22D3+T and how is it trimmed?
The MAX6383XR22D3+T has a factory-trimmed reset threshold of 2.19V, derived from the "22" suffix per Maxim's Reset Threshold table. This value is laser-trimmed during production to guarantee ±2.5% accuracy over -40°C to +125°C, with 60ppm/°C tempco. The MAX6383XR22D3+T does not require external calibration or adjustment.
Does MAX6383XR22D3+T support manual reset functionality?
No, the MAX6383XR22D3+T does not include a manual reset (MR) input. Per the Selector Guide and Pin Configurations, only MAX6384–MAX6386 and MAX6390 feature MR; MAX6383 is a dedicated VCC-monitoring device with RESET and GND pins only. For manual reset capability, consider MAX6384XR22D3+T instead.
What is the minimum VCC voltage at which MAX6383XR22D3+T guarantees valid reset output state?
The MAX6383XR22D3+T guarantees correct logic state on the open-drain RESET pin down to VCC = 1.0V, as specified in Electrical Characteristics. Below this voltage, the internal circuitry cannot maintain defined output behavior. This ensures deterministic reset assertion during deep brownout events before complete power loss.
Can MAX6383XR22D3+T be used in automotive applications?
Yes, the MAX6383XR22D3+T is rated for -40°C to +125°C operation and is RoHS-compliant (+T suffix), making it suitable for under-hood and cabin automotive applications. While not explicitly AEC-Q100 qualified (which applies to /V versions like MAX6383XR22D3/V+T), its temperature range and reliability data support industrial-automotive deployments where formal qualification is not mandated.
What package type and dimensions does MAX6383XR22D3+T use?
The MAX6383XR22D3+T uses a 3-pin SC70 package (outline number 21-0075) measuring 1.25mm × 0.85mm with 0.65mm pitch. It features a non-electrical exposed pad and is compatible with standard reflow soldering profiles. Land pattern 90-0208 is recommended for optimal thermal and mechanical performance.
MAX6383XR22D3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.19V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6383XR22D3+T FAQ
1.How can I place an order for MAX6383XR22D3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6383XR22D3+T 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 MAX6383XR22D3+T reliable?
The price and inventory of MAX6383XR22D3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6383XR22D3+T is usually 5 days.
3.What payment methods are accepted for MAX6383XR22D3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6383XR22D3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6383XR22D3+T?
MAX6383XR22D3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6383XR22D3+T 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 MAX6383XR22D3+T?
For technical support, including MAX6383XR22D3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6383XR22D3+T requirements.
6.How does Aetrix verify that MAX6383XR22D3+T is sourced from the original manufacturer or authorized distributors?
All MAX6383XR22D3+T 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 MAX6383XR22D3+T meets industry standards.
7.What is the process for return or replacement of MAX6383XR22D3+T?
All MAX6383XR22D3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6383XR22D3+T, 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 MAX6383XR22D3+T part is unused and in its original packaging.
Return procedure for MAX6383XR22D3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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