My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6384XS46D3+T
- Part No.:
- MAX6384XS46D3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6384XS46D3+T.pdf
- Description:
- IC MPU/RESET CIRC 4.63V SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:1,495
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6384XS46D3+T from Maxim Integrated is a low-power microprocessor supervisory circuit with factory-set 4.63V reset threshold, 140ms minimum VCC reset timeout, and active-low push-pull reset output. It monitors +1.8V to +5.0V supply rails, consumes only 3μA at +1.8V, and guarantees valid reset state down to VCC = 1V. Used in portable equipment and dual-voltage systems for reliable power-up/brownout protection.
For engineers reviewing the MAX6384XS46D3+T datasheet, MAX6384XS46D3+T pinout, MAX6384XS46D3+T application, or MAX6384XS46D3+T equivalent, key selection criteria include reset threshold accuracy (±2.5% over −40°C to +125°C), manual reset input with internal 63kΩ pullup, 4-pin SC70 package footprint, and compatibility with MAX809/MAX810 legacy designs.
Technical Context
The MAX6384XS46D3+T implements a precision bandgap-based voltage comparator with ±2.5% threshold accuracy across −40°C to +125°C, paired with a temperature-stable RC timer generating a guaranteed-minimum 140ms reset assertion after VCC recovery. Its internal MR pullup resistor (63kΩ) enables direct connection of a momentary switch to GND without external components.
This device uses a single-supply architecture monitoring only VCC - unlike MAX6387–MAX6389 variants, it lacks RESET IN functionality. Reset assertion occurs on VCC falling below 4.63V and remains active for ≥140ms after VCC rises above threshold, ensuring μP initialization stability during marginal supply conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.63V nominal (±2.5% over −40°C to +125°C); ensures reliable detection of 5V rail brownout before system instability. |
| VCC Reset Timeout | 140ms minimum; holds reset active long enough for full μP power stabilization and internal register initialization. |
| Supply Current | 3μA at +1.8V; enables multi-year battery life in always-on portable instrumentation. |
| Reset Output Type | Active-low push-pull; drives reset line directly without external pullup, compatible with standard μP reset inputs. |
| Operating Voltage Range | +1.0V to +5.5V; supports valid reset assertion even during deep brownout down to 1V VCC. |
| Manual Reset Input | MR with 63kΩ internal pullup; allows hardware-initiated reset via momentary switch, no external resistor required. |
| Package | 4-pin SC70 (X4+1 outline); 1.6mm × 1.6mm footprint saves PCB area in space-constrained embedded designs. |
Pinout & Package
MAX6384XS46D3+T is housed in a RoHS-compliant 4-pin SC70 package (outline 21-0098, land pattern 90-0187), optimized for high-density layouts with thermal resistance θJA = 322.6°C/W on multilayer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Main supply input; monitored for reset condition and powers internal circuitry; absolute max rating −0.3V to +6.0V. |
| 2 | RESET | Active-low push-pull output; sinks 3.2mA at VCC ≥ 4.5V; asserts low during VCC undervoltage or MR activation. |
| 3 | MR | Active-low manual reset input; internally pulled up to VCC (63kΩ); logic low forces reset regardless of VCC level. |
| 4 | GND | Ground reference for all internal comparators, timers, and output drivers; must be low-impedance return path. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 4.63V with ±2.5% tolerance over full industrial temperature range eliminates need for external resistor dividers. |
| Guaranteed reset validity at low VCC | RESET output remains logically valid down to VCC = 1V, enabling robust operation during deep brownout events. |
| Integrated manual reset pullup | 63kΩ internal MR pullup resistor reduces BOM count and PCB area versus discrete resistor solutions. |
| Negative-going transient immunity | Rejects VCC glitches ≤35µs duration when overdrive is 100mV below threshold, improving noise resilience in noisy environments. |
| Low quiescent current | 3μA at +1.8V enables use in energy-harvesting and battery-backed applications without compromising supervision integrity. |
Applications
| Portable Medical Sensors | Dual-Rail Industrial Controllers |
|---|---|
Use Scenario: Wearable ECG monitor powered by coin-cell battery with 3.3V analog front-end and 1.8V digital core. IC Role / Device Role / Timing Role: Supervises 3.3V supply rail and asserts reset if voltage drops below 4.63V threshold during battery depletion or load transients. Use Value: Prevents corrupted ADC sampling or firmware lockup by guaranteeing 140ms reset hold time while LDO stabilizes. | Use Scenario: PLC I/O module with separate 5V logic and 24V field-side power domains requiring coordinated reset sequencing. IC Role / Device Role / Timing Role: Monitors 5V logic rail; its active-low push-pull output directly drives μC reset pin while MR allows field-service reset initiation. Use Value: Eliminates need for external level-shifting or pullup resistors, reducing component count and layout complexity. |
| Battery-Powered IoT Edge Nodes | Automotive Body Control Modules |
Use Scenario: LoRaWAN sensor node using intermittent wake-up cycles with ultra-low sleep current targeting 5-year battery life. IC Role / Device Role / Timing Role: Provides power-on reset and brownout detection for ARM Cortex-M0+ MCU; 3μA supply current minimizes standby drain. Use Value: Enables reliable boot sequence after cold start while contributing <0.01% to total system quiescent load. | Use Scenario: Dashboard cluster with 5V microcontroller and CAN transceiver, requiring AEC-Q100-compliant supervision under load dump conditions. IC Role / Device Role / Timing Role: Ensures deterministic reset during 12V battery sag; 4.63V threshold aligns with automotive 5V regulator dropout specification. Use Value: Meets ASIL-B functional safety requirements for reset integrity without adding redundant supervision ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809SXR46D3+T | Same 4.63V threshold and 140ms timeout, but no manual reset input (MR); 3-pin SC70 package. | Lacks hardware reset capability; suitable only where software-controlled reset suffices. | Select when board space is critical and MR is unnecessary; requires redesign for MR functionality. |
| TPS3808G33DBVR | 3.3V fixed threshold (not 4.63V); 200ms timeout; 6-pin SOT-23; higher 12μA ICC at +3.6V. | Designed for 3.3V systems only; incompatible with 5V rail supervision without external divider. | Choose only for 3.3V-only applications; not drop-in for 5V brownout detection. |
Compared with MAX809SXR46D3+T, MAX6384XS46D3+T adds MR functionality in a 4-pin footprint; compared with TPS3808G33DBVR, it provides precise 4.63V detection and lower quiescent current for 5V systems, avoiding threshold translation circuitry.
Availability
MAX6384XS46D3+T is available at Aetrix Electronics and suitable for portable medical sensors, dual-rail industrial controllers, and battery-powered IoT edge nodes requiring stable component supply and long-term manufacturability.
Supply support for MAX6384XS46D3+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, and computing applications, with emphasis on low-power, high-reliability solutions.
The MAX6381–MAX6390 family delivers single/dual-voltage microprocessor supervision with ultra-low ICC, factory-trimmed thresholds, and multiple reset configurations - engineered specifically for space- and power-constrained embedded systems.
FAQ
What is the exact reset threshold voltage of MAX6384XS46D3+T and how is it specified?
The MAX6384XS46D3+T has a nominal reset threshold of 4.63V, with guaranteed tolerance of ±2.5% over the full operating temperature range (−40°C to +125°C). This value is factory-trimmed and documented in the Reset Thresholds table of the datasheet; the "46" suffix explicitly denotes the 4.63V variant. The threshold remains stable with tempco of 60ppm/°C.
Does MAX6384XS46D3+T support monitoring of a second voltage rail?
No, MAX6384XS46D3+T does not support auxiliary voltage monitoring. It is a single-rail supervisor that monitors only VCC. Devices with RESET IN functionality (e.g., MAX6387/MAX6388/MAX6389) are required for dual-voltage supervision; MAX6384XS46D3+T lacks the RESET IN pin and internal comparator for secondary rail detection.
What is the function and electrical behavior of the MR pin on MAX6384XS46D3+T?
The MR pin on MAX6384XS46D3+T is an active-low manual reset input with an internal 63kΩ pullup resistor to VCC. Driving MR low forces immediate reset assertion regardless of VCC level, and reset remains active for the full 140ms timeout after MR is released. MR accepts TTL/CMOS logic levels and requires no external components for basic switch interfacing.
What package type and dimensions does MAX6384XS46D3+T use, and is it RoHS-compliant?
MAX6384XS46D3+T uses a 4-pin SC70 package (outline number 21-0098, land pattern 90-0187), measuring 1.6mm × 1.6mm × 0.9mm. It is RoHS-compliant and lead(Pb)-free, indicated by the "+" suffix in the part number. Thermal resistance is θJA = 322.6°C/W on a multilayer PCB per JEDEC JESD51-7.
How does the reset timeout behavior differ between VCC recovery and manual reset on MAX6384XS46D3+T?
For VCC recovery, MAX6384XS46D3+T asserts reset until VCC rises above 4.63V and then maintains reset for a guaranteed minimum 140ms. For manual reset (MR low), it asserts reset while MR is low and holds reset for the same 140ms timeout after MR returns high - both paths use the identical D3 (140ms) timer configuration, unlike MAX6390 which offers asymmetric timeouts.
MAX6384XS46D3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-82A, SOT-343
- Packaging:
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.63V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-4
MAX6384XS46D3+T FAQ
1.How can I place an order for MAX6384XS46D3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6384XS46D3+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 MAX6384XS46D3+T reliable?
The price and inventory of MAX6384XS46D3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6384XS46D3+T is usually 5 days.
3.What payment methods are accepted for MAX6384XS46D3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6384XS46D3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6384XS46D3+T?
MAX6384XS46D3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6384XS46D3+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 MAX6384XS46D3+T?
For technical support, including MAX6384XS46D3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6384XS46D3+T requirements.
6.How does Aetrix verify that MAX6384XS46D3+T is sourced from the original manufacturer or authorized distributors?
All MAX6384XS46D3+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 MAX6384XS46D3+T meets industry standards.
7.What is the process for return or replacement of MAX6384XS46D3+T?
All MAX6384XS46D3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6384XS46D3+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 MAX6384XS46D3+T part is unused and in its original packaging.
Return procedure for MAX6384XS46D3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6384XS46D3+T Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
