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Analog Devices Inc./Maxim Integrated MAX6832HXRD3+
- Part No.:
- MAX6832HXRD3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6832HXRD3+.pdf
- Description:
- MAX6832 ULTRA-LOW-VOLTAGE VOLTAG
- Quantity:
- Payment:
- Shipping:
Inventory:606
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Product details
Overview
MAX6832HXRD3+ from Maxim Integrated is a micropower voltage supervisor IC designed to monitor +1.313V supply rails in low-voltage microprocessor systems. It provides active-low push-pull reset assertion during power-up, brownout, or manual reset events, with a fixed 210ms timeout period and ±2.5% threshold accuracy over -40°C to +85°C. Used in portable battery-powered equipment for reliable µP initialization.
For engineers reviewing the MAX6832HXRD3+ datasheet, MAX6832HXRD3+ pinout, MAX6832HXRD3+ application, or MAX6832HXRD3+ equivalent, key selection criteria include its 1.313V factory-set reset threshold, 210ms reset timeout, SC70-3 package, 7.5µA typical supply current, and guaranteed reset validity down to VCC = 0.55V.
Technical Context
The MAX6832HXRD3+ implements a precision bandgap-based voltage comparator with hysteresis (0.75% of VTH) to reject fast VCC transients. Its internal reset timer uses an RC-based monostable circuit to generate the 210ms active-low reset pulse after VCC rises above 1.313V or MR deasserts.
This device operates without external components across 0.55V–3.6V VCC, features an internal 20kΩ MR pullup, and asserts RESET when VCC falls below 1.313V or MR is pulled low - holding RESET low for exactly 210ms after recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.313V ±2.5% - precisely matches 1.3V core supplies; ensures deterministic reset at defined undervoltage point |
| Reset Timeout Period | 210ms - guarantees µP reset hold time exceeds typical power-rail stabilization time in portable systems |
| Supply Current | 7.5µA (typ) at 1.2V - enables multi-year battery life in always-on monitoring applications |
| VCC Range | 0.55V to 3.6V - supports operation during deep brownout and full system voltage range |
| Reset Output Type | Push-pull active-low - drives CMOS inputs directly without external pullup; sinks 15µA at 0.55V |
| Operating Temperature | -40°C to +85°C - qualified for industrial and extended commercial environments |
| Package | SC70-3 - 1.25mm × 0.85mm footprint; compatible with high-density PCB layouts |
Pinout & Package
MAX6832HXRD3+ is housed in a 3-pin SC70 package (1.25mm × 0.85mm × 0.9mm height), optimized for space-constrained portable designs. Pin 1 is GND, Pin 2 is RESET (active-low push-pull), and Pin 3 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (GND) | Ground reference | Return path for internal comparator and output stage; must be low-impedance connection to system ground plane |
| 2 (RESET) | Active-low push-pull reset output | Drives µP /RESET pin low during fault; actively pulls high when deasserted - no external pullup required |
| 3 (VCC) | Supply and monitored voltage input | Both powers the IC and serves as the monitored rail; valid operation starts at 0.55V; reset asserted below 1.313V |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 1.313V threshold | Eliminates external resistor divider; reduces BOM count and layout area in 1.3V core systems |
| 210ms fixed reset timeout | Guarantees sufficient hold time for slow-ramping power supplies without timing component tolerance drift |
| 7.5µA supply current | Enables continuous supervision in energy-harvesting or coin-cell-powered devices with >5-year battery life |
| Immunity to VCC transients | Rejects <100ns negative glitches up to 200mV overdrive - prevents spurious resets in noisy power environments |
| Valid reset down to VCC = 0.55V | Ensures controlled shutdown sequence even during severe brownout; avoids undefined µP state |
Applications
| Battery-Powered IoT Sensor Node | Low-Voltage Microcontroller System |
|---|---|
Use Scenario: A coin-cell-powered environmental sensor samples data every 5 minutes and transmits via BLE only upon threshold breach. IC Role / Device Role / Timing Role: MAX6832HXRD3+ monitors the 1.3V LDO output powering the MCU and radio; asserts reset if voltage sags below 1.313V during transmit burst. Use Value: Prevents firmware crash or memory corruption during RF power surge by guaranteeing clean reset before next wake cycle. |
Use Scenario: An industrial PLC I/O module uses a 1.3V FPGA core powered from a DC/DC converter with soft-start. IC Role / Device Role / Timing Role: MAX6832HXRD3+ holds the FPGA in reset until its 1.3V supply stabilizes for ≥210ms post-power-on. Use Value: Eliminates need for RC timing network; ensures FPGA configuration completes before logic begins execution. |
| Portable Medical Diagnostic Device | Wearable Health Monitor |
Use Scenario: A handheld ECG analyzer runs on dual AAA batteries with a 1.3V buck regulator feeding analog front-end and ARM Cortex-M0. IC Role / Device Role / Timing Role: MAX6832HXRD3+ supervises the 1.3V rail and interfaces directly to the MCU's active-low /RESET pin via push-pull drive. Use Value: Guarantees safe startup and brownout recovery without external components - critical for FDA-compliant reliability. |
Use Scenario: A wrist-worn pulse oximeter uses a 1.3V supply derived from a 3.0V coin cell via ultra-low-IQ LDO. IC Role / Device Role / Timing Role: MAX6832HXRD3+ continuously monitors VCC and triggers reset if battery voltage drops below 1.313V during cold-temperature operation. Use Value: Maintains functional safety by forcing controlled reboot before analog measurement errors occur. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6381XR22D3+ | Same SC70-3 package, 2.2V reset threshold, 200ms timeout; higher threshold unsuitable for 1.3V rails | Designed for 2.2V I/O domains; cannot replace MAX6832HXRD3+ in 1.3V core monitoring | Select only if supervising 2.2V supply; requires PCB redesign for threshold mismatch |
| TPS3123E13DBVR | 2.5V supply minimum; 1.3V threshold option available but in SOT-23-3; 1.2µA quiescent current | Lower IQ but requires external pullup for open-drain output; not push-pull compatible | Use where ultra-low power dominates; accept added component and interface redesign |
Compared with MAX6832HXRD3+, MAX6381XR22D3+ mismatches the 1.313V threshold requirement and is unsuitable for direct substitution, while TPS3123E13DBVR offers lower IQ but demands layout changes due to open-drain output and higher minimum VCC.
Availability
MAX6832HXRD3+ is available at Aetrix Electronics and suitable for portable medical devices, battery-powered IoT sensors, low-voltage microcontroller systems, and wearable health monitors requiring stable component supply across industrial temperature ranges.
Supply support for MAX6832HXRD3+ 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 MAX6832–MAX6840 family delivers ultra-low-voltage supervision for sub-1.8V digital systems, targeting portable and energy-sensitive applications where size, power, and accuracy are critical.
FAQ
What is the exact reset threshold voltage of the MAX6832HXRD3+?
The MAX6832HXRD3+ has a factory-set reset threshold of 1.313V with ±2.5% accuracy over -40°C to +85°C. This value is laser-trimmed during production and corresponds to the 'H' suffix in the part number per Maxim's Threshold Suffix Guide. The threshold remains stable across temperature and load, ensuring consistent brownout detection for 1.3V core supplies.
Does the MAX6832HXRD3+ require external components to operate?
No, the MAX6832HXRD3+ operates autonomously with no external components. Its 1.313V threshold is internally trimmed, the 210ms timeout is generated by an on-chip RC network, and the push-pull RESET output drives µP reset inputs directly. Only VCC, GND, and the target /RESET line are needed - eliminating resistors, capacitors, and layout complexity.
What is the minimum VCC voltage at which MAX6832HXRD3+ guarantees valid reset operation?
The MAX6832HXRD3+ guarantees RESET remains valid down to VCC = 0.55V for active-low assertion. Below this, the output enters high-impedance state. This specification ensures deterministic behavior during deep brownout conditions common in battery discharge profiles, allowing safe system shutdown before logic becomes unreliable.
Can the MAX6832HXRD3+ be used with a manual reset button?
Yes - the MAX6832HXRD3+ includes a dedicated MR (Manual Reset) input pin. Driving MR low forces immediate reset assertion regardless of VCC level, and reset remains active for the full 210ms timeout after MR is released. An internal 20kΩ pullup eliminates need for external resistor; a momentary switch from MR to GND suffices.
Is the MAX6832HXRD3+ pin-compatible with legacy Maxim supervisors like MAX809?
Yes - the MAX6832HXRD3+ is explicitly stated as pin-compatible with the MAX809 series (and MAX671x/MAX638x families) in SC70-3 configuration. Pin 1 = GND, Pin 2 = RESET, Pin 3 = VCC matches MAX809's SOT-23-3 pinout mapping, enabling drop-in replacement where 1.313V threshold and 210ms timeout meet design requirements.
MAX6832HXRD3+ 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:
- 1.313V
- 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
MAX6832HXRD3+ FAQ
1.How can I place an order for MAX6832HXRD3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6832HXRD3+ 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 MAX6832HXRD3+ reliable?
The price and inventory of MAX6832HXRD3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6832HXRD3+ is usually 5 days.
3.What payment methods are accepted for MAX6832HXRD3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6832HXRD3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6832HXRD3+?
MAX6832HXRD3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6832HXRD3+ 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 MAX6832HXRD3+?
For technical support, including MAX6832HXRD3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6832HXRD3+ requirements.
6.How does Aetrix verify that MAX6832HXRD3+ is sourced from the original manufacturer or authorized distributors?
All MAX6832HXRD3+ 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 MAX6832HXRD3+ meets industry standards.
7.What is the process for return or replacement of MAX6832HXRD3+?
All MAX6832HXRD3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6832HXRD3+, 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 MAX6832HXRD3+ part is unused and in its original packaging.
Return procedure for MAX6832HXRD3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6832HXRD3+ 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
Texas Instruments
-
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
Microchip Technology
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MCP120T-315I/TT
Microchip Technology
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MCP809T-315I/TT
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