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Analog Devices Inc./Maxim Integrated MAX6382XR17D3+T
- Part No.:
- MAX6382XR17D3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6382XR17D3+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,965
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Product details
Overview
MAX6382XR17D3+T from Maxim Integrated is a push-pull active-high microprocessor supervisory circuit with factory-set 1.67V reset threshold, 140ms minimum reset timeout, and 3μA supply current at +1.8V. It monitors single VCC supply in low-power embedded systems and asserts RESET high during brownout or power-up until VCC exceeds threshold and timeout expires. Designed for space-constrained applications requiring guaranteed reset validity down to VCC = 1V.
For engineers reviewing the MAX6382XR17D3+T datasheet, MAX6382XR17D3+T pinout, MAX6382XR17D3+T application, or MAX6382XR17D3+T equivalent, key selection criteria include active-high push-pull output logic, ±2.5% threshold accuracy over –40°C to +125°C, SC70-3 package compatibility, and immunity to negative-going VCC transients up to 35µs at 100mV overdrive.
Technical Context
The MAX6382XR17D3+T implements a precision bandgap-based voltage comparator with internal 1.67V reference and a digital timeout counter triggered on VCC fall below threshold. Its active-high push-pull output drives high during fault conditions and remains asserted for exactly 140ms (min) after VCC recovery, independent of temperature or supply variation.
No manual reset (MR) or auxiliary RESET IN inputs are present-this variant is optimized for single-supply monitoring only. The device guarantees valid RESET state down to VCC = 1V and exhibits 60ppm/°C reset threshold tempco, enabling stable operation across automotive and industrial temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.67V nominal (±2.5% over –40°C to +125°C); ensures reliable detection of 1.8V rail brownout before system instability. |
| Reset Timeout | 140ms minimum; provides sufficient hold time for μP initialization and peripheral stabilization after power recovery. |
| Supply Current | 3μA at +1.8V; enables multi-year battery life in portable equipment without compromising supervision integrity. |
| Output Type | Active-high push-pull; eliminates need for external pullup resistor and supports direct interface to CMOS/TTL reset inputs. |
| Operating Voltage | 1.0V to 5.5V; guarantees functional reset assertion even during deep undervoltage events down to 1V VCC. |
| Threshold Tempco | 60ppm/°C; limits drift to <±12mV over full temperature range, critical for precision low-voltage systems. |
| VCC Transient Immunity | 35µs max duration at 100mV overdrive; suppresses false resets from short power glitches without external filtering. |
Pinout & Package
MAX6382XR17D3+T is housed in a 3-pin SC70 package (outline 21-0075, land pattern 90-0208), measuring 2.0mm × 2.1mm × 0.95mm. Pin 1 is RESET (active-high push-pull), Pin 2 is VCC, and Pin 3 is GND. No internal connections exist for MR or RESET IN-this variant has no manual or auxiliary reset capability.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-high push-pull output; drives high during reset condition and returns low after timeout; sinks/source current per spec (VOL ≤0.3V at 80µA, VOH ≥0.8×VCC). |
| 2 | VCC | Main supply input and monitored voltage source; accepts 1.0V–5.5V; powers internal comparator and timer; supports operation down to 1V. |
| 3 | GND | Analog/digital ground reference; must be connected directly to system ground plane to ensure accurate threshold sensing and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 1.67V threshold | Eliminates external resistor networks and calibration effort while maintaining ±2.5% accuracy over full industrial temperature range. |
| 140ms fixed reset timeout | Guarantees consistent μP reset hold time across voltage and temperature, simplifying BOM and eliminating timing capacitor variability. |
| 3μA supply current at 1.8V | Enables integration into always-on battery-backed subsystems without measurable impact on standby current budget. |
| Active-high push-pull output | Directly interfaces with standard μP reset inputs requiring active-high assertion; removes external pullup and reduces board area. |
| VCC = 1V operational guarantee | Ensures deterministic reset behavior during deep brownout, preventing undefined processor states before complete power collapse. |
Applications
| Industrial PLC I/O Modules | Medical Wearable Sensors |
|---|---|
Use Scenario: Power supervision for isolated analog front-end and BLE radio in battery-powered ECG patch. IC Role / Device Role / Timing Role: Monitors 1.8V LDO output feeding ADC and RF SoC; asserts active-high RESET to halt data acquisition and prevent corrupted transmissions during voltage sag. Use Value: 3μA quiescent current extends 2-week battery life; 140ms timeout aligns precisely with BLE stack reinitialization window. |
Use Scenario: Supervision of dual-rail (1.8V core / 3.3V I/O) power sequencing in handheld diagnostic tool. IC Role / Device Role / Timing Role: Dedicated 1.67V monitor for 1.8V core rail; generates clean active-high reset pulse to coordinate FPGA configuration and sensor boot sequence. Use Value: ±2.5% threshold tolerance prevents spurious resets during thermal cycling; SC70-3 footprint saves >0.5mm² vs. SOT-23 alternatives. |
| Automotive Body Control Units | Smart Energy Meters |
Use Scenario: Reset management for LIN transceiver and microcontroller in door module operating from 5V vehicle bus. IC Role / Device Role / Timing Role: Detects undervoltage on 5V regulator output; asserts RESET high for 140ms to ensure safe shutdown and EEPROM write completion before power loss. Use Value: Valid operation down to VCC = 1V prevents latch-up during cranking transients; AEC-Q100 qualified variants available. |
Use Scenario: Power-fail detection in utility meter with supercapacitor backup during AC outage. IC Role / Device Role / Timing Role: Monitors 3.3V backup rail derived from supercap; triggers active-high reset to initiate secure shutdown and flash memory save before voltage drops below 1.67V. Use Value: 60ppm/°C tempco maintains threshold stability across -40°C to +85°C meter enclosure; 35µs transient immunity rejects line noise. |
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 3-pin SC70 package, 1.63V threshold (±2%), 140ms timeout, but active-low push-pull output. | Requires level-shifting or redesign of reset net if host μP expects active-high assertion. | Select when legacy design uses active-low reset and pin compatibility is mandatory. |
| TPS3808G16DBVR | 1.6V threshold (±0.5%), 200ms timeout, 1.1μA IQ at 1.8V, SOT-23-5 package with enable input. | Offers lower current and tighter threshold accuracy but adds enable control and requires PCB layout change due to 5-pin footprint. | Select for ultra-low-power designs where 1.1μA savings justifies re-layout and added functionality is useful. |
Compared with MAX809TRD3+T, MAX6382XR17D3+T avoids level translation overhead; compared with TPS3808G16DBVR, it trades 0.5μA IQ reduction for smaller footprint and simpler integration in space-constrained 3-pin applications.
Availability
MAX6382XR17D3+T is available at Aetrix Electronics and suitable for industrial PLC I/O modules, medical wearable sensors, automotive body control units, and smart energy meters requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6382XR17D3+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 medical applications, with emphasis on low-power, high-reliability solutions.
The MAX6381–MAX6390 family delivers single/dual-supply microprocessor supervisory circuits optimized for low-voltage, low-quiescent-current operation in space- and power-constrained embedded systems.
FAQ
What is the exact reset threshold voltage of MAX6382XR17D3+T?
The MAX6382XR17D3+T features a factory-set nominal reset threshold of 1.67V, with guaranteed tolerance of ±2.5% over the full operating temperature range (–40°C to +125°C). This value is confirmed in the Reset Thresholds table of the datasheet, where suffix "17" corresponds to 1.62V (min), 1.67V (nom), and 1.71V (max) at +25°C, and ±2.5% applies across temperature.
Does MAX6382XR17D3+T support manual reset functionality?
No, MAX6382XR17D3+T does not include a manual reset (MR) input. Per the Selector Guide and Pin Configurations, only MAX6384/MAX6385/MAX6386/MAX6390 variants feature MR. The MAX6382XR17D3+T is a dedicated single-supply supervisor with RESET, VCC, and GND pins only-no internal MR pullup or associated timing circuitry is present.
What package type and dimensions does MAX6382XR17D3+T use?
MAX6382XR17D3+T is supplied in a 3-pin SC70 package (outline number 21-0075), measuring 2.0mm × 2.1mm × 0.95mm with 0.65mm pin pitch. Land pattern 90-0208 is specified for PCB layout. This compact RoHS-compliant package enables high-density placement in portable and wearable electronics where board space is constrained.
Can MAX6382XR17D3+T operate reliably below 1.8V supply?
Yes, MAX6382XR17D3+T is fully specified to operate down to VCC = 1.0V, with guaranteed reset assertion validity and functional timing. Electrical Characteristics confirm operation at 1.0V (e.g., VOL ≤ 0.3V at 80µA sink), and the Absolute Maximum Ratings allow VCC as low as –0.3V. This enables robust brownout detection in ultra-low-voltage systems before complete power collapse.
Is MAX6382XR17D3+T pin-compatible with other MAX638x devices in SC70-3?
Yes, MAX6382XR17D3+T shares identical 3-pin SC70 pinout (RESET–VCC–GND) with MAX6381 and MAX6383 in the same package. However, output polarity differs: MAX6382 is active-high push-pull, while MAX6381/MAX6383 are active-low (push-pull/open-drain). Direct replacement requires verification of host reset input logic polarity and timing requirements.
MAX6382XR17D3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.67V
- 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
MAX6382XR17D3+T FAQ
1.How can I place an order for MAX6382XR17D3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6382XR17D3+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 MAX6382XR17D3+T reliable?
The price and inventory of MAX6382XR17D3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6382XR17D3+T is usually 5 days.
3.What payment methods are accepted for MAX6382XR17D3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6382XR17D3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6382XR17D3+T?
MAX6382XR17D3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6382XR17D3+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 MAX6382XR17D3+T?
For technical support, including MAX6382XR17D3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6382XR17D3+T requirements.
6.How does Aetrix verify that MAX6382XR17D3+T is sourced from the original manufacturer or authorized distributors?
All MAX6382XR17D3+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 MAX6382XR17D3+T meets industry standards.
7.What is the process for return or replacement of MAX6382XR17D3+T?
All MAX6382XR17D3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6382XR17D3+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 MAX6382XR17D3+T part is unused and in its original packaging.
Return procedure for MAX6382XR17D3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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