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Analog Devices Inc./Maxim Integrated MAX6383XR16D3+T
- Part No.:
- MAX6383XR16D3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6383XR16D3+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,096
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Product details
Overview
MAX6383XR16D3+T from Maxim Integrated is a low-power microprocessor supervisory circuit with open-drain active-low reset output, factory-set 1.58V reset threshold (±2.5% over −40°C to +125°C), 140ms minimum reset timeout, and guaranteed operation down to VCC = 1.0V. It monitors single-supply rails in battery-powered embedded systems where precise brownout detection and ultra-low quiescent current (3μA at 1.8V) are critical.
For engineers reviewing the MAX6383XR16D3+T datasheet, MAX6383XR16D3+T pinout, MAX6383XR16D3+T application, or MAX6383XR16D3+T equivalent, this device serves as a precision voltage monitor for power-up/power-down sequencing, brownout protection, and system-level reset assertion in space-constrained industrial and portable designs.
Technical Context
The MAX6383XR16D3+T implements a precision bandgap-based voltage comparator with internal 1.58V reference and hysteresis, coupled to a monolithic RC timer that guarantees ≥140ms reset assertion after VCC exceeds threshold. Its open-drain RESET output requires an external pullup and remains valid across full VCC range (1.0V–5.5V), enabling interoperability with mixed-voltage logic domains.
No manual reset (MR) or auxiliary RESET IN inputs are integrated - this variant is optimized for simple single-rail monitoring without user-initiated reset or dual-voltage supervision, distinguishing it from MAX6384–MAX6390 and MAX6387–MAX6389 family members.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.58V (nominal), ±2.5% accuracy over −40°C to +125°C - ensures reliable brownout detection across automotive/industrial temperature ranges |
| Reset Timeout | 140ms (minimum) - provides sufficient hold time for microcontroller initialization before release |
| Supply Current | 3μA at VCC = 1.8V - enables multi-year operation in coin-cell–powered IoT sensors |
| Operating Voltage | 1.0V to 5.5V - supports valid reset assertion even during deep brownout conditions |
| Output Type | Open-drain active-low - allows wired-OR configuration and level translation via external pullup resistor |
| Package | 3-pin SC70 (X3+2 outline) - 1.25mm × 0.85mm footprint ideal for wearables and compact modules |
| Reset Propagation Delay | 35μs (VCC falling at 10mV/µs) - fast response to supply transients without false triggering |
Pinout & Package
MAX6383XR16D3+T is housed in a RoHS-compliant 3-pin SC70 package (outline 21-0075, land pattern 90-0208), with thermal resistance θJA = 340.4°C/W on multilayer board. 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 pullup; sinks ≥80µA at VCC ≥ 1.0V with VOL ≤ 0.3V |
| 2 | VCC | Main supply input and monitored voltage rail; accepts 1.0V–5.5V; powers internal comparator and timer |
| 3 | GND | Analog and digital ground reference; must be low-impedance connection to ensure threshold accuracy |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 1.58V with ±2.5% tolerance over full temperature range - eliminates need for external resistor dividers or calibration |
| Ultra-low supply current | 3μA at 1.8V - extends battery life in always-on monitoring applications without sacrificing timing accuracy |
| Valid reset output at low VCC | Guaranteed correct logic state down to VCC = 1.0V - ensures deterministic behavior during deep brownout recovery |
| Negative-going transient immunity | Rejects VCC glitches ≤35μs at 100mV overdrive - prevents spurious resets in electrically noisy environments |
| Small-footprint packaging | 3-pin SC70 (1.25mm × 0.85mm) - saves PCB area in space-constrained portable and medical devices |
Applications
| Battery-Powered IoT Sensor Node | Industrial PLC I/O Module |
|---|---|
Use Scenario: Continuous environmental sensing with BLE transmission powered by CR2032 coin cell. IC Role / Device Role / Timing Role: Monitors 1.8V LDO output; asserts reset if voltage sags below 1.58V during RF burst, preventing firmware corruption. Use Value: 3μA quiescent current enables >5-year battery life; 140ms timeout ensures MCU completes boot sequence before peripheral initialization. | Use Scenario: DIN-rail mounted controller with isolated 3.3V I/O supply subject to 12V bus ripple. IC Role / Device Role / Timing Role: Supervises 3.3V rail feeding FPGA configuration memory and ADC reference; triggers hard reset on undervoltage. Use Value: ±2.5% threshold accuracy over −40°C to +125°C maintains reliability across factory floor temperature swings. |
| Wearable Health Monitor | Automotive Body Control Module (BCM) |
Use Scenario: Optical heart-rate sensor with rechargeable LiPo battery and dynamic voltage scaling. IC Role / Device Role / Timing Role: Detects 1.58V brownout on core logic rail during sleep-to-wake transition; holds reset until stable 1.8V is re-established. Use Value: Open-drain output interfaces directly to 1.2V domain MCU reset pin via 10kΩ pullup, eliminating level-shifter components. | Use Scenario: Low-voltage subsystem monitoring 1.5V core supply derived from buck converter in infotainment head unit. IC Role / Device Role / Timing Role: Provides fail-safe reset signal to ARM Cortex-M4 when 1.5V rail drops due to load dump or cold-crank condition. Use Value: Valid operation down to VCC = 1.0V ensures reset assertion remains functional even during extreme battery sag events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326XR16D3+T | Same 1.58V threshold and 140ms timeout, but push-pull active-low output; no open-drain capability | Requires direct connection to MCU reset pin without external pullup; incompatible with wired-OR or multi-source reset buses | Select only when system uses dedicated reset line and no level translation is needed |
| TPS3808G16DBVR | 1.6V threshold (±0.5%), 200ms timeout, 1.5μA ICC at 1.8V; SOT-23-5 package with enable input | Includes EN pin for reset disable during low-power modes; higher accuracy but larger footprint and different pinout | Prefer when dynamic reset control or tighter threshold tolerance is required, accepting added complexity |
Compared with MAX6326XR16D3+T, MAX6383XR16D3+T enables shared reset busing and mixed-voltage interfacing; compared with TPS3808G16DBVR, it offers smaller size and lower cost at the expense of threshold accuracy and programmability.
Availability
MAX6383XR16D3+T is available at Aetrix Electronics and suitable for battery-powered IoT sensor nodes, industrial PLC I/O modules, wearable health monitors, and automotive body control modules requiring stable component supply and long-term production continuity.
Supply support for MAX6383XR16D3+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 industrial, automotive, communications, and consumer applications.
The MAX6381–MAX6390 product line delivers ultra-low-power, factory-trimmed supervisory circuits optimized for reliable power-on reset, brownout protection, and voltage monitoring in space- and energy-constrained embedded systems.
FAQ
What is the exact reset threshold voltage of the MAX6383XR16D3+T?
The MAX6383XR16D3+T has a factory-set nominal reset threshold of 1.58V, with guaranteed accuracy 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 calibration. The "16" suffix in MAX6383XR16D3+T explicitly denotes the 1.58V threshold per Maxim's ordering guide.
Does the MAX6383XR16D3+T include a manual reset input (MR)?
No, the MAX6383XR16D3+T does not feature a manual reset input. It belongs to the MAX6381/MAX6382/MAX6383 subgroup, which lacks MR functionality. Manual reset capability is only present in MAX6384–MAX6386 and MAX6390 variants. The MAX6383XR16D3+T is designed exclusively for automatic VCC monitoring with open-drain reset assertion.
What package type and dimensions does the MAX6383XR16D3+T use?
The MAX6383XR16D3+T is supplied in a lead-free, RoHS-compliant 3-pin SC70 package (outline number 21-0075, land pattern 90-0208), measuring 1.25mm × 0.85mm with 0.65mm pitch. This compact footprint is identical to the MAX6381 and MAX6382 variants and is optimized for high-density PCB layouts in portable electronics.
Can the MAX6383XR16D3+T operate reliably at VCC = 1.2V?
Yes, the MAX6383XR16D3+T is fully specified to operate and assert a valid reset signal down to VCC = 1.0V. At 1.2V, its open-drain RESET output guarantees VOL ≤ 0.3V while sinking 80µA, ensuring compatible logic-level signaling with 1.2V or 1.8V microcontrollers. This capability is confirmed in the Electrical Characteristics table under "Open-Drain RESET Output Voltage".
Is the MAX6383XR16D3+T pin-compatible with the MAX809?
Yes, the MAX6383XR16D3+T is pin-compatible with the MAX809 in the 3-pin SC70 package, sharing identical pinout (Pin 1 = RESET, Pin 2 = VCC, Pin 3 = GND) and functional behavior as an open-drain active-low supervisor. This compatibility is explicitly stated in the "Pin Compatible with" feature list of the datasheet and enables drop-in replacement in legacy designs.
MAX6383XR16D3+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:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.58V
- 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
MAX6383XR16D3+T FAQ
1.How can I place an order for MAX6383XR16D3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6383XR16D3+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 MAX6383XR16D3+T reliable?
The price and inventory of MAX6383XR16D3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6383XR16D3+T is usually 5 days.
3.What payment methods are accepted for MAX6383XR16D3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6383XR16D3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6383XR16D3+T?
MAX6383XR16D3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6383XR16D3+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 MAX6383XR16D3+T?
For technical support, including MAX6383XR16D3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6383XR16D3+T requirements.
6.How does Aetrix verify that MAX6383XR16D3+T is sourced from the original manufacturer or authorized distributors?
All MAX6383XR16D3+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 MAX6383XR16D3+T meets industry standards.
7.What is the process for return or replacement of MAX6383XR16D3+T?
All MAX6383XR16D3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6383XR16D3+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 MAX6383XR16D3+T part is unused and in its original packaging.
Return procedure for MAX6383XR16D3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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