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Analog Devices Inc./Maxim Integrated MAX6382XR23D3-T
- Part No.:
- MAX6382XR23D3-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6382XR23D3-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,968
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Product details
Overview
MAX6382XR23D3-T from Maxim Integrated is a push-pull active-high microprocessor supervisory circuit with factory-set 2.31V reset threshold, 140ms minimum VCC reset timeout, and 3μA supply current at +1.8V. It monitors single-supply voltage (1.0V–5.5V), asserts RESET high during brownout or power-down, and guarantees valid output down to VCC = 1V. Used in portable battery-powered equipment for reliable power-on reset sequencing.
For engineers reviewing the MAX6382XR23D3-T datasheet, MAX6382XR23D3-T pinout, MAX6382XR23D3-T application, or MAX6382XR23D3-T equivalent, this page delivers verified electrical specs, SC70-3 package details, reset timing behavior, thermal performance, and direct alternatives for industrial embedded and automotive-grade designs requiring ±2.5% threshold accuracy over –40°C to +125°C.
Technical Context
The MAX6382XR23D3-T implements a precision bandgap-based reset comparator with ±2.5% threshold accuracy across –40°C to +125°C and 60ppm/°C tempco. Its internal timer generates a guaranteed-minimum 140ms reset assertion after VCC rises above 2.31V.
It features an active-high push-pull RESET output capable of sourcing 800µA at VCC ≥ 4.5V while maintaining VOH ≥ 0.8×VCC, and sinking 3.2mA with VOL ≤ 0.4V - ensuring robust interface with μP reset inputs without external pullups.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.31V (nominal), ±2.5% over –40°C to +125°C - ensures accurate brownout detection across automotive temperature range |
| VCC Operating Range | 1.0V to 5.5V - supports operation down to near-dead-battery conditions while maintaining valid RESET state |
| Reset Timeout | 140ms (min) - provides sufficient hold time for slow-ramping power supplies and μP initialization sequences |
| Supply Current | 3μA at +1.8V - enables multi-year battery life in always-on monitoring applications |
| RESET Output Type | Active-high push-pull - eliminates need for external pullup resistor and reduces BOM count |
| Output Voltage Low | VOL ≤ 0.3V at ISINK = 1.2mA (VCC ≥ 2.5V) - ensures solid logic-low level for μP reset input compatibility |
| Output Voltage High | VOH ≥ 0.8×VCC at ISOURCE = 500µA (VCC ≥ 2.5V) - guarantees noise margin against VCC droop during reset deassertion |
Pinout & Package
MAX6382XR23D3-T is housed in a RoHS-compliant 3-pin SC70 package (outline 21-0075, land pattern 90-0208), footprint-compatible with industry-standard low-power supervisory ICs.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-high push-pull output; drives high during reset condition and remains high for full 140ms timeout after VCC recovery |
| 2 | VCC | Main supply input and monitored voltage source; powers internal circuitry and feeds reset comparator |
| 3 | GND | Analog/digital ground reference; must be connected to system ground plane for stable threshold accuracy |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 2.31V (±2.5%) - eliminates external resistor network and calibration effort in production |
| Negative-going VCC transient immunity | Rejects glitches ≤ 35µs at 100mV overdrive - prevents spurious resets in noisy power environments |
| Valid RESET down to VCC = 1V | Guaranteed logic state integrity below brownout - avoids undefined μP behavior during deep discharge |
| Low quiescent current | 3μA at +1.8V - extends battery runtime in IoT sensors and wearables without compromising supervision reliability |
| Wide temperature operation | –40°C to +125°C - qualified for under-hood automotive and industrial control applications |
Applications
| Portable Medical Sensors | Automotive Body Control Modules |
|---|---|
Use Scenario: Wearable ECG patch operating from coin-cell battery with variable load-induced VCC sag. IC Role / Device Role / Timing Role: Monitors VCC and asserts active-high RESET to ARM Cortex-M0+ MCU until stable 2.31V rail is confirmed. Use Value: 140ms timeout ensures complete ADC initialization and flash memory readiness before firmware execution resumes. |
Use Scenario: Door module powered by 12V-to-3.3V DC/DC converter subject to load dump transients. IC Role / Device Role / Timing Role: Supervises 3.3V rail and triggers MCU reset on undervoltage; immune to <35µs negative spikes per spec. Use Value: ±2.5% threshold accuracy prevents false resets during cold-cranking while ensuring fail-safe shutdown at true brownout. |
| Industrial PLC I/O Subsystems | Smart Energy Meters |
Use Scenario: Remote analog input card powered via isolated 5V supply with slow startup ramp. IC Role / Device Role / Timing Role: Generates clean, glitch-free active-high reset pulse synchronized to 5V rail stabilization. Use Value: Push-pull output eliminates external pullup, reducing component count and PCB area in space-constrained DIN-rail modules. |
Use Scenario: Meter with dual-supply architecture (3.3V MCU + 1.8V RTC) requiring coordinated reset timing. IC Role / Device Role / Timing Role: Primary supervisor for main VCC; paired with MAX6387 for auxiliary 1.8V rail monitoring. Use Value: 3μA supply current minimizes self-discharge of backup supercapacitor during 10-year meter lifetime. |
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 | 2.32V threshold, 240ms timeout, SOT-23-3 package, 12μA ICC at +3.6V | Higher supply current limits battery life; longer timeout may delay system boot in time-critical applications | Select when legacy SOT-23 footprint compatibility is required and higher ICC is acceptable |
| TPS3808G33DBVR | 3.3V fixed threshold, 200ms timeout, SC70-5 package, 1.1μA ICC at +3.3V | Fixed 3.3V threshold incompatible with 2.31V target; requires redesign if VCC < 3.0V | Choose only if system operates strictly at 3.3V and ultra-low ICC is prioritized over threshold flexibility |
Compared with MAX6382XR23D3-T, MAX809TRD3-T offers identical SC70-3 footprint but trades 4× higher ICC and 71% longer timeout for broader distributor availability; TPS3808G33DBVR achieves lower ICC but sacrifices threshold programmability and pin compatibility, necessitating layout revision.
Availability
MAX6382XR23D3-T is available at Aetrix Electronics and suitable for portable medical sensors, automotive body control modules, industrial PLC I/O subsystems, and smart energy meters requiring stable component supply across extended temperature and long-lifecycle programs.
Supply support for MAX6382XR23D3-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, with emphasis on low-power, high-reliability solutions.
The MAX6381–MAX6390 family delivers single/dual low-voltage supervisory circuits optimized for battery-powered and automotive systems where guaranteed reset behavior, minimal ICC, and AEC-Q100 qualification are essential.
FAQ
What is the exact reset threshold voltage of MAX6382XR23D3-T?
The MAX6382XR23D3-T has a factory-set nominal reset threshold of 2.31V, with 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 "23" corresponds to VTH(nom) = 2.31V, VTH(min) = 2.26V, and VTH(max) = 2.37V.
Does MAX6382XR23D3-T support manual reset functionality?
No, MAX6382XR23D3-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 MAX6382XR23D3-T is a 3-pin SC70 device with RESET, VCC, and GND only - no MR or RESET IN pins are present or internally connected.
What is the minimum VCC voltage at which MAX6382XR23D3-T guarantees valid RESET output?
The MAX6382XR23D3-T guarantees correct RESET logic state down to VCC = 1.0V. As stated in the Electrical Characteristics table and Detailed Description section, the push-pull output remains functional and valid even as supply voltage drops to 1V - critical for detecting deep brownout conditions before total power loss.
Is MAX6382XR23D3-T pin-compatible with MAX809 series devices?
Yes, MAX6382XR23D3-T is pin-compatible with MAX809/MAX810 in the 3-pin SC70 package. The datasheet explicitly states "Pin Compatible with MAX809/MAX810/MAX803/..." and confirms identical pinout: Pin 1 = RESET, Pin 2 = VCC, Pin 3 = GND. However, note that MAX809 variants use SOT-23-3, so footprint adaptation is required for drop-in replacement.
What is the thermal resistance (θJA) of MAX6382XR23D3-T in its SC70-3 package?
The junction-to-ambient thermal resistance (θJA) for MAX6382XR23D3-T in the 3-pin SC70 package is 340.4°C/W, measured on a multilayer board per JEDEC JESD51-7. This value is documented in the Package Information section and determines maximum power dissipation (235mW at TA = +70°C) and safe operating temperature rise under load.
MAX6382XR23D3-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:
- 2.31V
- 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
MAX6382XR23D3-T FAQ
1.How can I place an order for MAX6382XR23D3-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6382XR23D3-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 MAX6382XR23D3-T reliable?
The price and inventory of MAX6382XR23D3-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6382XR23D3-T is usually 5 days.
3.What payment methods are accepted for MAX6382XR23D3-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6382XR23D3-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6382XR23D3-T?
MAX6382XR23D3-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6382XR23D3-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 MAX6382XR23D3-T?
For technical support, including MAX6382XR23D3-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6382XR23D3-T requirements.
6.How does Aetrix verify that MAX6382XR23D3-T is sourced from the original manufacturer or authorized distributors?
All MAX6382XR23D3-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 MAX6382XR23D3-T meets industry standards.
7.What is the process for return or replacement of MAX6382XR23D3-T?
All MAX6382XR23D3-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6382XR23D3-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 MAX6382XR23D3-T part is unused and in its original packaging.
Return procedure for MAX6382XR23D3-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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