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Analog Devices Inc./Maxim Integrated MAX6383XR29D5
- Part No.:
- MAX6383XR29D5
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6383XR29D5.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,653
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Product details
Overview
MAX6383XR29D5 from Maxim Integrated is a low-power microprocessor supervisory circuit with open-drain active-low reset output, factory-set 2.93V reset threshold (±2.5% over -40°C to +125°C), 280ms minimum reset timeout, and 3µA supply current at +1.8V. It monitors single-supply VCC in battery-powered systems, portable electronics, and industrial controllers where reliable power-on reset and brownout protection are critical.
For engineers reviewing the MAX6383XR29D5 datasheet, MAX6383XR29D5 pinout, MAX6383XR29D5 application, or MAX6383XR29D5 equivalent, this device delivers precise voltage monitoring, ultra-low quiescent current, guaranteed reset assertion down to VCC = 1V, and SC70-3 packaging for space-constrained designs.
Technical Context
The MAX6383XR29D5 implements a precision bandgap-based voltage comparator with ±2.5% threshold accuracy across full temperature range and 60ppm/°C tempco. Its internal timer guarantees a minimum 280ms reset assertion after VCC rises above 2.93V, with immunity to negative-going VCC transients up to 35µs at 100mV overdrive.
This variant belongs to the MAX6383 series-open-drain active-low configuration without manual reset (MR) or auxiliary RESET IN inputs-and is specified for operation from 1.0V to 5.5V supply, with reset output leakage ≤1.0µA and VOL ≤0.3V at ISINK = 80µA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.93V (nominal), ±2.5% over -40°C to +125°C - ensures accurate brownout detection across industrial temperature range |
| Reset Timeout | 280ms (minimum) - guarantees sufficient processor initialization time after power recovery |
| Supply Current | 3µA at +1.8V - enables multi-year battery life in always-on portable applications |
| Operating Voltage | 1.0V to 5.5V - supports valid reset assertion down to near-dead-battery conditions |
| Output Type | Open-drain active-low - requires external pull-up; compatible with mixed-voltage I/O domains |
| Reset Output VOL | ≤0.3V at ISINK = 80µA - ensures clean logic-low signal to µP reset input under load |
| Threshold Tempco | 60ppm/°C - minimizes drift-induced false resets in thermally varying environments |
Pinout & Package
MAX6383XR29D5 is housed in a 3-pin SC70 package (pkg code X3-2), measuring 2.0mm × 2.1mm × 0.95mm, with lead-free finish. Pin 1 = RESET (open-drain active-low), Pin 2 = VCC, Pin 3 = GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Open-drain active-low reset output; requires external pull-up resistor to interface with µP reset input |
| 2 | VCC | Main supply input and monitored voltage rail; powers internal circuitry and sets fixed reset threshold |
| 3 | GND | Ground reference for all internal comparators, timers, and output stage |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 2.93V with ±2.5% tolerance over full temperature range - eliminates external resistor networks and calibration |
| Ultra-low supply current | 3µA at +1.8V - reduces system standby power by >90% vs. legacy reset ICs |
| Valid reset down to VCC = 1V | Guaranteed correct logic state at VCC ≥1V - supports deep brownout recovery in Li-ion and coin-cell systems |
| Negative transient immunity | Rejects VCC glitches ≤35µs at 100mV overdrive - prevents spurious resets in noisy power environments |
| SC70-3 footprint | 2.0mm × 2.1mm body - enables placement in tight spaces on high-density PCBs without thermal relief compromises |
Applications
| Battery-Powered IoT Sensor Node | Industrial PLC Input Module |
|---|---|
Use Scenario: A wireless environmental sensor operates from a single 3.0V lithium-thionyl chloride cell with 10-year target lifetime and must survive voltage sag during RF transmission. IC Role / Device Role / Timing Role: MAX6383XR29D5 monitors VCC and asserts reset if voltage drops below 2.93V, holding µC in reset until stable supply returns for ≥280ms. Use Value: Prevents firmware corruption during battery depletion; 3µA quiescent current extends operational life beyond 10 years. | Use Scenario: An industrial digital input module powered from a 3.3V isolated DC-DC converter must withstand line transients and ensure deterministic startup after power interruption. IC Role / Device Role / Timing Role: MAX6383XR29D5 provides power-on reset and brownout detection, asserting open-drain RESET to FPGA configuration logic until VCC stabilizes above 2.93V for 280ms. Use Value: Eliminates metastability in FPGA state machines; 60ppm/°C tempco ensures consistent trip point across -40°C to +85°C operating range. |
| Portable Medical Diagnostic Handheld | Automotive Body Control Module (BCM) Subsystem |
Use Scenario: A handheld glucose meter uses a 3.0V alkaline battery and requires guaranteed reset during cold-weather startup (-20°C) and low-battery shutdown. IC Role / Device Role / Timing Role: MAX6383XR29D5 detects VCC drop below 2.93V and holds ARM Cortex-M0+ in reset until supply recovers and remains asserted for 280ms post-recovery. Use Value: Ensures deterministic boot sequence at low temperatures; ±2.5% threshold accuracy prevents premature shutdown at end-of-life battery voltage. | Use Scenario: A BCM subcircuit powered from a 5.0V vehicle bus experiences load-dump transients and must avoid false resets during ignition cycling. IC Role / Device Role / Timing Role: MAX6383XR29D5 monitors 5.0V rail and suppresses reset pulses for transients <35µs, asserting only on sustained undervoltage events. Use Value: Improves system robustness against automotive electrical noise; open-drain output allows level-shifting to 3.3V µC reset pin. |
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 2.93V threshold and 280ms timeout, but push-pull active-low output; higher ICC (12µA typical) | Requires no external pull-up; less suitable for mixed-voltage or wired-OR reset buses | Select when board layout lacks space for pull-up or when driving legacy µP with weak internal pull-ups |
| TPS3808G33DBVR | 2.93V threshold, 280ms timeout, open-drain output, but 1.5µA ICC at 1.8V and wider VCC range (0.8V–6.0V) | Supports lower VCC operation and longer battery life; different pinout (SOT-23-5) | Select when extending battery runtime is critical or when VCC may dip below 1.0V during deep sleep |
Compared with MAX809TRD3+T and TPS3808G33DBVR, MAX6383XR29D5 offers the lowest ICC at 1.8V among open-drain variants and maintains identical timing and threshold specs in the smallest SC70-3 footprint, making it optimal for ultra-compact, long-life applications.
Availability
MAX6383XR29D5 is available at Aetrix Electronics and suitable for battery-powered IoT sensors, portable medical devices, and industrial control modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX6383XR29D5 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 power, sensing, and interface applications in industrial, automotive, and computing markets.
The MAX6383XR29D5 belongs to the MAX6381–MAX6390 family of low-power µP supervisory circuits, engineered specifically for reliable power-on reset, brownout protection, and ultra-low-quiescent-current operation in space- and energy-constrained embedded systems.
FAQ
What is the exact reset threshold voltage of the MAX6383XR29D5?
The MAX6383XR29D5 has a factory-set nominal reset threshold of 2.93V, with guaranteed tolerance of ±2.5% over the full operating temperature range (-40°C to +125°C). This value is laser-trimmed during production and does not require external components to set.
Does the MAX6383XR29D5 include a manual reset input (MR)?
No, the MAX6383XR29D5 does not feature a manual reset input. It is part of the MAX6383 subgroup, which provides only VCC monitoring and open-drain active-low reset output. MR functionality is present only in MAX6384/MAX6385/MAX6386/MAX6390 variants.
What package type and dimensions does the MAX6383XR29D5 use?
The MAX6383XR29D5 is supplied in a 3-pin SC70 package (pkg code X3-2), with body dimensions of 2.0mm × 2.1mm × 0.95mm and lead-free finish. Pin 1 is RESET, Pin 2 is VCC, and Pin 3 is GND - no NC pins are present.
Can the MAX6383XR29D5 operate with supply voltages below 1.8V?
Yes, the MAX6383XR29D5 operates from 1.0V to 5.5V. Its reset output is guaranteed functional down to VCC = 1.0V, and supply current drops to ~2.5µA at 1.5V (extrapolated from datasheet curves), enabling use in ultra-low-voltage battery systems.
Is an external pull-up resistor required for the MAX6383XR29D5 RESET pin?
Yes, the MAX6383XR29D5 features an open-drain active-low RESET output, which requires an external pull-up resistor to the target logic voltage (e.g., 3.3V or 5.0V). Typical values range from 10kΩ to 100kΩ, selected to balance rise time and power consumption.
MAX6383XR29D5 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:
- 2.93V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 280ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6383XR29D5 FAQ
1.How can I place an order for MAX6383XR29D5 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6383XR29D5 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 MAX6383XR29D5 reliable?
The price and inventory of MAX6383XR29D5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6383XR29D5 is usually 5 days.
3.What payment methods are accepted for MAX6383XR29D5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6383XR29D5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6383XR29D5?
MAX6383XR29D5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6383XR29D5 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 MAX6383XR29D5?
For technical support, including MAX6383XR29D5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6383XR29D5 requirements.
6.How does Aetrix verify that MAX6383XR29D5 is sourced from the original manufacturer or authorized distributors?
All MAX6383XR29D5 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 MAX6383XR29D5 meets industry standards.
7.What is the process for return or replacement of MAX6383XR29D5?
All MAX6383XR29D5 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6383XR29D5, 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 MAX6383XR29D5 part is unused and in its original packaging.
Return procedure for MAX6383XR29D5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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