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Analog Devices Inc./Maxim Integrated MAX6832VXRD3+
- Part No.:
- MAX6832VXRD3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6832VXRD3+.pdf
- Description:
- MAX6832 ULTRA-LOW-VOLTAGE VOLTAG
- Quantity:
- Payment:
- Shipping:
Inventory:1,680
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Product details
Overview
MAX6832VXRD3+ from Maxim Integrated is a low-voltage microprocessor supervisory circuit in a 3-pin SC70 package, designed to monitor +1.575V supply rails with ±2.5% threshold accuracy over temperature and assert an active-low push-pull reset for 210ms after VCC recovery or manual reset deassertion. It draws only 7.5µA typical supply current and guarantees valid reset output down to VCC = 0.55V - used in portable battery-powered µP systems requiring reliable power-on reset and brownout protection.
For engineers reviewing the MAX6832VXRD3+ datasheet, MAX6832VXRD3+ pinout, MAX6832VXRD3+ application, or MAX6832VXRD3+ equivalent, key selection criteria include its fixed 1.575V reset threshold (suffix 'V'), 210ms timeout (suffix 'D3'), SC70-3 footprint, push-pull active-low RESET output, and compatibility with 1.2V–1.8V core supplies in space-constrained embedded designs.
Technical Context
The MAX6832VXRD3+ implements a precision voltage comparator with hysteresis (0.75% of VTH) and a fixed 210ms reset timeout timer, independent of VCC slew rate or noise. Its internal 20kΩ MR pullup enables direct switch-to-ground connection without external components.
It features glitch immunity against short negative VCC transients (e.g., <100ns at 100mV overdrive) and operates across –40°C to +85°C with supply voltage range 0.55V to 3.6V - ensuring robust reset assertion during power-up, brownout, and power-down sequences in ultra-low-voltage digital systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.575V ±2.5% over –40°C to +85°C - precisely matches 1.6V nominal core supplies with minimal margin loss |
| Reset Timeout Period | 210ms - ensures µP initialization completes before release, compatible with slow-ramping DC/DC converters |
| Supply Current | 7.5µA typical at +25°C - enables multi-year battery life in always-on monitoring applications |
| Output Type | Push-pull active-low RESET - drives CMOS inputs directly without pullup resistor, reducing BOM count |
| Valid Reset Down To | VCC = 0.55V - maintains defined logic state through deep brownout, preventing undefined µP behavior |
| MR Input | Debounced, internally pulled up to VCC (20kΩ) - supports momentary switch interface with no external RC network |
| Package | SC70-3 - 1.25mm × 0.8mm footprint, compatible with high-density PCB layouts and reflow assembly |
Pinout & Package
MAX6832VXRD3+ is housed in a 3-pin SC70 package (1.25mm × 0.8mm, 0.65mm pitch), optimized for space-constrained portable electronics. Pin 1 is GND, Pin 2 is RESET (active-low push-pull), and Pin 3 is VCC - fully compatible with standard SC70-3 land patterns and pick-and-place tooling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Reference ground for reset comparator and internal circuitry; must be connected to system ground plane for noise immunity |
| 2 | RESET | Active-low push-pull output; sinks 15µA at VCC ≥ 0.55V - directly interfaces with µP reset input without external components |
| 3 | VCC | Monitored supply input and power rail; accepts 0.55V–3.6V; powers internal circuitry and defines reset threshold reference |
Key Features
| Feature | Design Value |
|---|---|
| Factory-set 1.575V threshold | Eliminates external resistor divider and calibration, reducing design time and component count for 1.6V-core systems |
| 210ms fixed timeout | Guarantees sufficient hold time for µP boot ROM execution and PLL lock in low-power SoCs |
| 7.5µA supply current | Enables continuous supervision in energy-harvesting and coin-cell-powered devices without measurable battery drain |
| SC70-3 package | Reduces board area by >50% vs. SOT-23-3 while maintaining thermal performance and manufacturability |
| Immunity to VCC glitches | Rejects transients ≤100ns duration below reset threshold - prevents spurious resets in noisy power environments |
Applications
| Battery-Powered IoT Sensor Node | Low-Voltage FPGA Configuration System |
|---|---|
Use Scenario: A coin-cell-powered environmental sensor samples data every 5 minutes and transmits via BLE; power rails dip during RF transmission. IC Role / Device Role / Timing Role: MAX6832VXRD3+ monitors the 1.575V LDO output and asserts RESET during voltage sags below threshold, blocking firmware execution until stable power returns. Use Value: Prevents flash corruption and state machine lockup during transient brownouts, extending field reliability beyond 5 years on CR2032. | Use Scenario: An FPGA-based motor controller uses a 1.6V core supply derived from a buck converter with soft-start; startup delay exceeds 100ms. IC Role / Device Role / Timing Role: MAX6832VXRD3+ holds FPGA in reset for 210ms after VCC crosses 1.575V, ensuring configuration clock and I/O banks are fully powered before bitstream load. Use Value: Eliminates need for discrete RC timing network and guarantees deterministic configuration across temperature and unit variance. |
| Wearable Health Monitor | Industrial Edge Controller |
Use Scenario: A wrist-worn ECG device uses a 1.6V analog front-end and 1.2V digital subsystem; battery voltage decays gradually over weeks. IC Role / Device Role / Timing Role: MAX6832VXRD3+ detects when the regulated 1.575V rail falls below threshold due to aging battery or cold temperature, forcing controlled shutdown. Use Value: Enables graceful data save and flash write-protection before power collapse, preserving clinical measurement integrity. | Use Scenario: A DIN-rail-mounted PLC module powers multiple isolated I/O channels from a shared 1.6V domain; EMI from relay switching causes localized dips. IC Role / Device Role / Timing Role: MAX6832VXRD3+ provides localized reset supervision per module, asserting RESET only when its own VCC violates threshold - not affected by adjacent channel noise. Use Value: Avoids system-wide reboot from single-channel disturbance, improving uptime and diagnostic traceability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar µP reset supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD3+T | Same SC70-3 package, 1.63V reset threshold, 240ms timeout, 12µA supply current | Higher threshold and longer timeout - better suited for 1.8V systems with slower power rails | Select MAX809TRD3+T only if 1.63V trip point and 240ms hold time align with system power sequencing requirements |
| TPS3808G33DBVR | SOT-23-5 package, 3.3V reset threshold, adjustable timeout (1.25ms–10s), 1.1µA quiescent current | Designed for higher-voltage rails; requires external capacitor for timeout setting and additional pin for enable control | Choose TPS3808G33DBVR when supervising 3.3V domains or requiring programmable timeout, not for 1.575V/210ms fixed-function use |
Compared with MAX809TRD3+T and TPS3808G33DBVR, the MAX6832VXRD3+ delivers tighter threshold accuracy (±2.5% vs. ±3.5%), lower quiescent current (7.5µA vs. 12µA/1.1µA), and guaranteed operation down to 0.55V - making it optimal for 1.6V-core battery-powered systems where space, precision, and deep-brownout resilience are critical.
Availability
MAX6832VXRD3+ is available at Aetrix Electronics and suitable for portable/Battery-Powered Equipment, Critical µP and µC Power Monitoring, and Intelligent Instruments requiring stable component supply and long-term lifecycle support.
Supply support for MAX6832VXRD3+ 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 management, sensing, and interface applications in industrial, automotive, and computing markets.
The MAX6832–MAX6840 family was engineered specifically for ultra-low-voltage microprocessor supervision in space- and power-constrained systems - delivering factory-trimmed thresholds, sub-10µA operation, and SC70 packaging for next-generation portable electronics.
FAQ
What is the exact reset threshold voltage of the MAX6832VXRD3+ and how is it specified across temperature?
The MAX6832VXRD3+ has a factory-set reset threshold of 1.575V, with ±2.5% accuracy guaranteed over the full operating temperature range of –40°C to +85°C. This value is confirmed in the Electrical Characteristics table under "Reset Threshold (VTH)" for suffix 'V', and applies to all units without user adjustment or external components.
Does the MAX6832VXRD3+ require an external pullup resistor on its RESET pin?
No, the MAX6832VXRD3+ features a push-pull active-low RESET output and does not require an external pullup resistor. Its output actively drives LOW during reset and HIGH otherwise, enabling direct connection to µP reset inputs - unlike open-drain variants such as MAX6834VXRD3+ which do require a pullup.
What is the reset timeout period of the MAX6832VXRD3+ and how is it determined by the part number?
The MAX6832VXRD3+ has a fixed reset timeout period of 210ms, indicated by the 'D3' suffix in its part number. This value is unchangeable and guaranteed across temperature and supply voltage - distinct from D0 (70µs), D1 (1.5ms), D2 (30ms), and D4 (1680ms) variants in the same family.
Can the MAX6832VXRD3+ monitor supply voltages below 1.2V?
No - the MAX6832VXRD3+ is factory-trimmed for 1.575V threshold and is specified to operate with VCC from 0.55V to 3.6V, but its reset function is only meaningful for supplies near its threshold. For sub-1.2V monitoring, select MAX6838–MAX6840 variants with RESET-IN input and 444mV internal reference, such as MAX6838XSD3+.
Is the MAX6832VXRD3+ pin-compatible with older Maxim reset supervisors like the MAX809 series?
Yes - the MAX6832VXRD3+ is explicitly stated as pin-compatible with the MAX803/MAX809/MAX810 series in the datasheet's Features section. Both use SC70-3 packaging with identical pin 1 (GND), pin 2 (RESET), and pin 3 (VCC) assignments, enabling drop-in replacement where 1.575V threshold and 210ms timeout meet system requirements.
MAX6832VXRD3+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- Type:
- Voltage Detector
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.575V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6832VXRD3+ FAQ
1.How can I place an order for MAX6832VXRD3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6832VXRD3+ 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 MAX6832VXRD3+ reliable?
The price and inventory of MAX6832VXRD3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6832VXRD3+ is usually 5 days.
3.What payment methods are accepted for MAX6832VXRD3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6832VXRD3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6832VXRD3+?
MAX6832VXRD3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6832VXRD3+ 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 MAX6832VXRD3+?
For technical support, including MAX6832VXRD3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6832VXRD3+ requirements.
6.How does Aetrix verify that MAX6832VXRD3+ is sourced from the original manufacturer or authorized distributors?
All MAX6832VXRD3+ 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 MAX6832VXRD3+ meets industry standards.
7.What is the process for return or replacement of MAX6832VXRD3+?
All MAX6832VXRD3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6832VXRD3+, 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 MAX6832VXRD3+ part is unused and in its original packaging.
Return procedure for MAX6832VXRD3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6832VXRD3+ Tags
-
MIC826SYMT-TR
Microchip Technology
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APX803S-31SA-7
Diodes Incorporated
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APX803L20-29SA-7
Diodes Incorporated
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TPS3828-33DBVR
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V6340RSP3B+
EM Microelectronic
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EM6325CXSP5B-2.9+
EM Microelectronic
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MCP120T-300I/TT
Microchip Technology
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MCP130T-315I/TT
Microchip Technology
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MCP120T-475I/TT
Microchip Technology
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MCP111T-300E/TT
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MCP120T-315I/TT
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