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Analog Devices Inc./Maxim Integrated MAX6383LT17D6+T
- Part No.:
- MAX6383LT17D6+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 6-WFDFN
- Datasheet:
-
MAX6383LT17D6+T.pdf
- Description:
- IC MPU/RESET CIRC 1.67V 6-UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,753
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Product details
Overview
MAX6383LT17D6+T from Maxim Integrated is an open-drain active-low microprocessor supervisory circuit with factory-set 1.67V reset threshold (±2.5% over −40°C to +125°C), 560ms minimum reset timeout, and 3μA supply current at +1.8V. It monitors single-supply VCC in low-power embedded systems and asserts RESET when voltage drops below threshold, holding it for the timeout period after recovery - used in battery-powered instrumentation and industrial controllers requiring reliable brownout protection.
For engineers reviewing the MAX6383LT17D6+T datasheet, MAX6383LT17D6+T pinout, MAX6383LT17D6+T application, or MAX6383LT17D6+T equivalent, key selection criteria include its open-drain output architecture, guaranteed valid operation down to VCC = 1V, ±2.5% threshold accuracy across automotive temperature range, and compatibility with 6-pin μDFN layout constraints.
Technical Context
The MAX6383LT17D6+T implements a precision bandgap-based voltage comparator monitoring VCC against a fixed 1.67V threshold, with internal timer logic enforcing a 560ms minimum reset assertion period after VCC recovers. Its open-drain RESET output requires an external pullup resistor and remains functional down to VCC = 1V, enabling robust reset signaling during deep brownout conditions.
No manual reset (MR) input or auxiliary RESET IN pin is present - this variant is optimized for simple single-rail monitoring without user-initiated reset or dual-voltage supervision. The device uses BiCMOS process technology and operates across −40°C to +125°C with AEC-Q100-compliant packaging options available.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.67V (nominal), ±2.5% tolerance over −40°C to +125°C - ensures accurate power-fail detection across automotive and industrial environments |
| Reset Timeout | 560ms (minimum) - guarantees sufficient processor hold time for safe firmware initialization after power recovery |
| Supply Current | 3μA at +1.8V - enables multi-year battery life in portable and energy-harvesting applications |
| Operating Voltage Range | 1.0V to 5.5V - supports valid reset assertion even during severe undervoltage events down to 1V |
| Output Type | Open-drain active-low - allows wired-OR configuration with other reset sources and flexible voltage-level translation via external pullup |
| Temperature Range | −40°C to +125°C - qualified for under-hood automotive, industrial control, and harsh-environment deployment |
| Package | 6-pin μDFN (2mm × 2mm, 0.5mm pitch) - compact footprint suitable for space-constrained PCBs with thermal resistance θJA = 477°C/W |
Pinout & Package
MAX6383LT17D6+T is housed in a 6-pin μDFN package (outline 21-0147, land pattern 90-0080), measuring 2mm × 2mm with 0.5mm pin pitch and exposed thermal pad. The package supports reflow soldering up to +260°C and has JEDEC-standard thermal characteristics (θJA = 477°C/W, θJC = 122°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal circuitry and reset comparator - must be connected to system ground plane for stable operation |
| 2 | VCC | Primary power supply input and monitored rail - supplies internal bias and serves as voltage source for reset threshold comparison |
| 3 | N.C. | No internal connection - left floating; no routing or termination required on PCB |
| 4 | RESET (open-drain) | Active-low reset signal output - sinks current when asserted; requires external pullup resistor to host logic voltage (e.g., 3.3V or 5V) |
| 5 | N.C. | No internal connection - left floating; no routing or termination required on PCB |
| 6 | N.C. | No internal connection - left floating; no routing or termination required on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 1.67V with ±2.5% accuracy over full temperature range - eliminates need for external calibration or trimming components |
| Ultra-low quiescent current | 3μA at +1.8V - reduces standby power in always-on systems and extends battery runtime in portable devices |
| Valid reset output down to VCC = 1V | Ensures deterministic reset state during deep brownout - prevents processor runaway before complete power collapse |
| Open-drain output architecture | Enables shared reset bus with multiple supervisors or logic families, and supports level-shifting via external pullup voltage |
| High noise immunity | Guaranteed rejection of negative-going VCC transients ≤35µs at 100mV overdrive - suppresses false resets from switching noise |
Applications
| Industrial Sensor Node | Automotive Body Control Module |
|---|---|
|
Use Scenario: Battery-powered wireless sensor node operating from 2.0V Li-ion cell with intermittent wake-up cycles. IC Role / Device Role / Timing Role: Monitors VCC to detect battery sag below 1.67V and assert open-drain RESET to halt MCU execution until stable voltage returns. Use Value: Prevents corrupted memory writes and firmware crashes during brownout, extending field reliability without adding external components. |
Use Scenario: Under-dash electronic control unit powered by 12V automotive supply regulated to 3.3V, subject to load-dump and cold-crank transients. IC Role / Device Role / Timing Role: Supervises 3.3V rail and holds MCU in reset for 560ms after voltage recovers from cranking dip, ensuring clean boot sequence. Use Value: Eliminates need for discrete RC reset circuits while meeting AEC-Q100 requirements for reset timing stability across temperature. |
| Medical Portable Monitor | Smart Energy Meter |
|
Use Scenario: Handheld vital-signs monitor using coin-cell battery and low-power ARM Cortex-M0+ MCU. IC Role / Device Role / Timing Role: Provides fail-safe reset during battery depletion, asserting open-drain RESET to disable peripherals and preserve SRAM contents. Use Value: Enables graceful shutdown and data retention at VCC ≥1.0V - critical for regulatory compliance and patient safety logging. |
Use Scenario: DIN-rail mounted electricity meter with isolated power rails and long-term firmware integrity requirements. IC Role / Device Role / Timing Role: Supervises main 3.3V logic supply and enforces 560ms reset hold time after AC line interruption to prevent flash corruption. Use Value: Meets IEC 62056-21 and EN 50470-3 requirements for power-fail response without external watchdog ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326LTR17D6+T | Same 1.67V threshold, 560ms timeout, and 6-pin μDFN package; differs in reset output type (push-pull active-low vs. open-drain) | Requires no external pullup but lacks wired-OR capability; not suitable for shared reset buses | Select MAX6326LTR17D6+T only if push-pull drive strength and elimination of external resistor are prioritized over bus-sharing flexibility |
| TPS3808G17DBVR | 1.67V threshold, 560ms timeout, SOT-23-5 package; higher 8μA ICC at +1.8V and no guaranteed operation below VCC = 1.5V | Limited brownout resilience; unsuitable for ultra-low-voltage recovery scenarios where VCC may dip to 1.0–1.4V | Choose TPS3808G17DBVR only for cost-sensitive consumer applications where extended low-VCC validity is not required |
Compared with MAX6383LT17D6+T, MAX6326LTR17D6+T offers stronger drive but forfeits bus-sharing capability, while TPS3808G17DBVR trades off brownout robustness and quiescent current for lower unit cost and wider distributor availability.
Availability
MAX6383LT17D6+T is available at Aetrix Electronics and suitable for industrial sensor nodes, automotive body control modules, medical portable monitors, and smart energy meters requiring stable component supply with guaranteed long-term lifecycle support.
Supply support for MAX6383LT17D6+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 communications applications, with emphasis on low-power, high-reliability solutions.
The MAX6381–MAX6390 family delivers single/dual low-voltage microprocessor supervisory circuits optimized for battery-powered and automotive systems where minimal quiescent current, wide temperature operation, and precise reset timing are critical.
FAQ
What is the exact reset threshold voltage of MAX6383LT17D6+T and how stable is it over temperature?
The MAX6383LT17D6+T has a factory-set nominal reset threshold of 1.67V, with guaranteed tolerance of ±2.5% over the full operating temperature range of −40°C to +125°C. This stability is achieved through laser-trimmed bandgap references and BiCMOS process design, eliminating need for external calibration. The device's tempco is specified at 60ppm/°C, ensuring predictable drift behavior in thermal cycling environments.
Does MAX6383LT17D6+T include a manual reset input (MR) or auxiliary voltage monitor (RESET IN)?
No, MAX6383LT17D6+T does not include a manual reset input (MR) or auxiliary RESET IN pin. It is a dedicated single-rail supervisor with only VCC monitoring functionality. The pinout confirms pins 3, 5, and 6 are N.C., and the ordering guide explicitly assigns MR and RESET IN features only to variants like MAX6384–MAX6390 and MAX6387–MAX6389 respectively.
What is the minimum VCC voltage at which MAX6383LT17D6+T guarantees correct RESET output logic state?
MAX6383LT17D6+T guarantees valid RESET output logic state down to VCC = 1.0V. Below this voltage, internal circuitry cannot maintain defined output behavior. This specification enables reliable reset assertion during deep brownout events common in battery-powered systems, unlike many competitors that require ≥1.5V for guaranteed operation.
Can MAX6383LT17D6+T be used in automotive applications, and what qualification does it meet?
Yes, MAX6383LT17D6+T meets AEC-Q100 Grade 1 qualification (−40°C to +125°C) when ordered with the /V suffix (e.g., MAX6383LT17D6/V+T). The standard MAX6383LT17D6+T is rated for the same temperature range and RoHS-compliant packaging, making it suitable for automotive body electronics, infotainment power management, and ADAS subsystems where full AEC-Q100 certification is not mandated.
What package type and dimensions does MAX6383LT17D6+T use, and are thermal characteristics documented?
MAX6383LT17D6+T uses a 6-pin μDFN package (2mm × 2mm, 0.5mm pitch, outline 21-0147) with exposed thermal pad. Thermal resistance is fully characterized: junction-to-ambient (θJA) = 477°C/W and junction-to-case (θJC) = 122°C/W on multilayer board per JEDEC JESD51-7. Land pattern number 90-0080 is provided for reliable PCB layout.
MAX6383LT17D6+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-WFDFN
- Packaging:
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.67V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 560ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-µDFN (1.5x1)
MAX6383LT17D6+T FAQ
1.How can I place an order for MAX6383LT17D6+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6383LT17D6+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 MAX6383LT17D6+T reliable?
The price and inventory of MAX6383LT17D6+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6383LT17D6+T is usually 5 days.
3.What payment methods are accepted for MAX6383LT17D6+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6383LT17D6+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6383LT17D6+T?
MAX6383LT17D6+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6383LT17D6+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 MAX6383LT17D6+T?
For technical support, including MAX6383LT17D6+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6383LT17D6+T requirements.
6.How does Aetrix verify that MAX6383LT17D6+T is sourced from the original manufacturer or authorized distributors?
All MAX6383LT17D6+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 MAX6383LT17D6+T meets industry standards.
7.What is the process for return or replacement of MAX6383LT17D6+T?
All MAX6383LT17D6+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6383LT17D6+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 MAX6383LT17D6+T part is unused and in its original packaging.
Return procedure for MAX6383LT17D6+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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