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Analog Devices Inc./Maxim Integrated MAX6832FXRD0+
- Part No.:
- MAX6832FXRD0+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6832FXRD0+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,228
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Product details
Overview
MAX6832FXRD0+ from Maxim Integrated is a low-voltage microprocessor supervisory circuit in a 3-pin SC70 package, designed to monitor +1.05V supply rails and assert an active-low push-pull reset signal during power-up, brownout, or VCC drop below 1.05V. It features a 1.5ms reset timeout (D1 suffix), ±2.5% threshold accuracy over temperature, and consumes only 7.5µA typical supply current-ideal for battery-powered embedded controllers and portable instrumentation.
For engineers reviewing the MAX6832FXRD0+ datasheet, MAX6832FXRD0+ pinout, MAX6832FXRD0+ application, or MAX6832FXRD0+ equivalent, this device serves as a precision voltage detector and reset generator for ultra-low-voltage µP systems requiring guaranteed reset assertion down to VCC = 0.55V, immunity to short VCC transients, and factory-trimmed threshold stability across -40°C to +85°C.
Technical Context
The MAX6832FXRD0+ implements a precision bandgap-based voltage comparator with 444mV internal reference, comparing VCC against a factory-set 1.05V threshold (F suffix). Its reset logic includes fixed 1.5ms timeout after VCC recovery and guarantees valid RESET output even as VCC falls to 0.55V-below which the push-pull driver enters high-impedance state.
No manual reset (MR) or RESET-IN inputs are present on this variant; it relies solely on VCC monitoring. The device uses BiCMOS process (681 transistors), achieves 70µs propagation delay in voltage-detect mode, and rejects VCC glitches <100ns duration without false triggering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.050V ±2.5% (F suffix); ensures reliable reset assertion for 1.05V nominal supply systems |
| Reset Timeout Period | 1.5ms (D1 suffix); guarantees µP remains held in reset long enough for stable power rail recovery |
| Supply Current | 7.5µA typical at 1.2V; enables multi-year operation in coin-cell–powered IoT sensors |
| VCC Operating Range | 0.55V to 3.6V; supports reset assertion down to near-zero supply while maintaining comparator functionality |
| Reset Output Type | Push-pull, active-low; drives µP reset pin directly without external pullup, sinking 15µA at 0.55V |
| Temperature Range | -40°C to +85°C; qualified for industrial-grade embedded control and portable medical devices |
| Package | 3-pin SC70 (2.0mm × 2.1mm × 0.95mm); enables high-density PCB layouts in space-constrained wearables |
Pinout & Package
MAX6832FXRD0+ is housed in a 3-pin SC70 package (SOT-323 compatible footprint), with pin 1 = GND, pin 2 = RESET (active-low push-pull), pin 3 = VCC. No MR or RESET-IN pins are present-this is a dedicated VCC-monitoring variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Reference ground for internal comparator and output driver; must be connected to system ground plane |
| 2 | RESET | Active-low push-pull output; sinks current when asserted, drives µP reset pin directly without external components |
| 3 | VCC | Monitored supply input and power source; supplies internal circuitry and defines reset threshold reference point |
Key Features
| Feature | Design Value |
|---|---|
| Factory-set 1.05V threshold | Eliminates external resistor networks and calibration; reduces BOM count and layout area for 1.05V core rails |
| ±2.5% threshold accuracy over temp | Ensures consistent reset behavior across industrial temperature range without derating margins |
| 1.5ms fixed timeout | Guarantees sufficient hold time for slow-ramping DC/DC converters in low-power subsystems |
| 7.5µA supply current | Extends battery life in always-on monitoring nodes where supervisor quiescent draw dominates system leakage |
| VCC = 0.55V reset validity | Maintains deterministic reset state during deep brownout, preventing µP runaway before full power collapse |
Applications
| Battery-Powered Sensor Node | Industrial PLC I/O Module |
|---|---|
Use Scenario: A wireless temperature sensor powered by CR2032 coin cell operates intermittently, waking every 5 minutes to sample and transmit data. IC Role / Device Role / Timing Role: MAX6832FXRD0+ monitors the 1.05V LDO output powering the MCU and RF transceiver, asserting RESET during cold-start or battery sag below 1.05V. Use Value: Prevents corrupted firmware execution during marginal supply conditions, eliminating field failures caused by undervoltage-induced flash corruption. |
Use Scenario: An isolated digital input module in a factory automation cabinet receives 24V DC, regulates to 1.05V for its ARM Cortex-M0+ controller, and must survive line transients. IC Role / Device Role / Timing Role: MAX6832FXRD0+ provides brownout detection on the 1.05V rail and holds the controller in reset during 24V supply dips or ESD events. Use Value: Ensures deterministic restart after transient-induced voltage droop, avoiding spurious I/O toggling that could trigger unsafe machine motion. |
| Portable Medical Glucose Meter | Low-Power Wearable Health Band |
Use Scenario: A handheld glucose meter uses a single AAA alkaline cell, stepping down to 1.05V for its analog front-end and display controller. IC Role / Device Role / Timing Role: MAX6832FXRD0+ asserts RESET when battery voltage drops below 1.05V, disabling measurement circuitry before ADC reference instability causes erroneous readings. Use Value: Guarantees clinical-grade accuracy by preventing use of the device outside its validated operating voltage window. |
Use Scenario: A wrist-worn heart rate monitor runs continuously on a 3.7V LiPo cell with buck converter outputting 1.05V to its sensor hub ASIC. IC Role / Device Role / Timing Role: MAX6832FXRD0+ monitors the 1.05V rail and triggers controlled shutdown when cell voltage depletes to end-of-life threshold. Use Value: Enables graceful firmware save-to-flash before power loss, preserving last known vitals and battery health metrics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD1+T | 1.6V reset threshold, 140ms timeout, same SC70-3 package | Designed for 1.6V–1.8V logic rails; not suitable for sub-1.2V systems | Select only if monitoring >1.6V supplies; incompatible with 1.05V core rails |
| TPS3123E10DBVR | 1.0V threshold, 200ms timeout, SOT-23-3 package, 1.5µA IQ | Lower quiescent current but longer timeout; requires external capacitor for adjustable delay | Prefer for ultra-low-power designs where 200ms reset hold is acceptable and layout allows SOT-23 |
Compared with MAX6832FXRD0+, MAX809TRD1+T targets higher-voltage systems and lacks sub-1.2V capability, while TPS3123E10DBVR trades lower IQ for reduced timing flexibility and different package geometry-neither offers the exact 1.05V/1.5ms/SC70-3 combination with guaranteed 0.55V reset validity.
Availability
MAX6832FXRD0+ is available at Aetrix Electronics and suitable for battery-powered sensor nodes, industrial PLC I/O modules, and portable medical devices requiring stable component supply with guaranteed long-term manufacturability and lead-free compliance.
Supply support for MAX6832FXRD0+ 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 power management, sensing, and interface solutions.
The MAX6832–MAX6840 family was developed specifically for ultra-low-voltage microprocessor supervision in portable and energy-constrained systems, addressing the need for sub-1.2V reset accuracy, nanowatt quiescent operation, and minimal board space.
FAQ
What is the exact reset threshold voltage of the MAX6832FXRD0+?
The MAX6832FXRD0+ has a factory-trimmed reset threshold of 1.050V, with ±2.5% accuracy over the full -40°C to +85°C operating temperature range. This value is confirmed by the 'F' suffix in the part number per Maxim's Threshold Suffix Guide and is measured under standard test conditions with VCC between 1.1V and 3.3V.
Does the MAX6832FXRD0+ include a manual reset (MR) input?
No, the MAX6832FXRD0+ does not include a manual reset input. It is a VCC-only monitoring variant within the MAX6832–MAX6840 family. Pin configuration is strictly GND–RESET–VCC in SC70-3; no MR or RESET-IN terminals are present on this specific part number.
What is the reset timeout period for the MAX6832FXRD0+?
The MAX6832FXRD0+ features a 1.5ms reset active timeout period, indicated by the 'D1' suffix in its ordering code. After VCC rises above 1.050V, the RESET output remains asserted for exactly 1.5ms before deasserting-guaranteed across temperature and supply voltage variations.
Can the MAX6832FXRD0+ operate with supply voltages below 1.05V?
Yes, the MAX6832FXRD0+ functions down to VCC = 0.55V and continues to assert RESET correctly until VCC falls below that level. Below 0.55V, the push-pull driver enters high-impedance state, but the device remains powered and functional across its full specified 0.55V–3.6V range.
Is the MAX6832FXRD0+ pin-compatible with other MAX6832 variants?
Yes, all MAX6832 variants-including MAX6832FXRD0+-share identical 3-pin SC70-3 pinout (GND–RESET–VCC) and mechanical footprint. Threshold (F/V/H/I/G/W) and timeout (D0/D1/D2/D3/D4) variants are electrically interchangeable at the board level, enabling design reuse across voltage and timing requirements.
MAX6832FXRD0+ 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:
- Voltage Detector
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.05V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 70µs Typical
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6832FXRD0+ FAQ
1.How can I place an order for MAX6832FXRD0+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6832FXRD0+ 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 MAX6832FXRD0+ reliable?
The price and inventory of MAX6832FXRD0+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6832FXRD0+ is usually 5 days.
3.What payment methods are accepted for MAX6832FXRD0+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6832FXRD0+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6832FXRD0+?
MAX6832FXRD0+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6832FXRD0+ 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 MAX6832FXRD0+?
For technical support, including MAX6832FXRD0+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6832FXRD0+ requirements.
6.How does Aetrix verify that MAX6832FXRD0+ is sourced from the original manufacturer or authorized distributors?
All MAX6832FXRD0+ 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 MAX6832FXRD0+ meets industry standards.
7.What is the process for return or replacement of MAX6832FXRD0+?
All MAX6832FXRD0+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6832FXRD0+, 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 MAX6832FXRD0+ part is unused and in its original packaging.
Return procedure for MAX6832FXRD0+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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