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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:2,040
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Product details
Overview
MAX6832FXRD0 from Maxim Integrated is a low-voltage microprocessor supervisory circuit designed to monitor +1.2V to +1.8V power supplies and assert a reset signal during brownout, power-up, or power-down events. It features a factory-set 1.050V reset threshold, 7.5µA typical supply current, 30ms active timeout period (D2 suffix), and push-pull active-low RESET output in a 3-pin SC70 package - used for reliable power-on reset in portable µP systems.
For engineers reviewing the MAX6832FXRD0 datasheet, MAX6832FXRD0 pinout, MAX6832FXRD0 application, or MAX6832FXRD0 equivalent, this device serves as a precision voltage detector with guaranteed reset validity down to VCC = 0.55V, ±2.5% threshold accuracy over temperature, and immunity to short negative VCC transients - critical for battery-powered embedded control and instrumentation.
Technical Context
The MAX6832FXRD0 implements a precision bandgap-based voltage comparator with hysteresis (0.75% of VTH) to detect VCC falling below its 1.050V threshold. Its internal reset timer generates a fixed 30ms timeout after VCC recovers or manual reset deassertion, ensuring stable processor initialization.
This variant belongs to the MAX6832–MAX6837 group: it lacks RESET-IN and MR pins, uses only VCC and GND as inputs, and delivers a push-pull active-low RESET signal. It is not debounced nor adjustable - optimized for minimal external components in space-constrained, ultra-low-power applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.050V ±2.5% over -40°C to +85°C - ensures accurate brownout detection for 1.2V logic rails |
| Reset Timeout Period | 30ms (D2 option) - guarantees sufficient hold time for µP core initialization after power recovery |
| Supply Current | 7.5µA typical at 1.2V - enables multi-year battery life in always-on monitoring circuits |
| Operating Voltage Range | 0.55V to 3.6V - supports valid reset assertion even during deep brownout down to sub-1V VCC |
| Output Type | Push-pull active-low RESET - drives CMOS inputs directly without pullup resistor |
| Package | 3-pin SC70 - 1.25mm × 0.85mm footprint ideal for wearables and compact sensor nodes |
| Reset Validity Limit | VCC ≥ 0.55V - RESET remains functional and sinks 15µA until supply drops below this level |
Pinout & Package
MAX6832FXRD0 is housed in a 3-pin SC70 package (pin-compatible with MAX803/MAX809 series). Pin 1 is GND, Pin 2 is RESET (push-pull active-low), and Pin 3 is VCC. No manual reset (MR) or RESET-IN pins are present - simplified two-input supervision architecture.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and output stage - must be low-impedance connection to system ground plane |
| 2 | RESET | Push-pull active-low reset output - asserts LOW during fault; releases HIGH after timeout; drives µP /RESET pin directly |
| 3 | VCC | Monitored supply input and power source - supplies internal circuitry and defines reset threshold reference point |
Key Features
| Feature | Design Value |
|---|---|
| Factory-set 1.050V threshold | Eliminates external resistor divider - reduces BOM count and layout area for 1.2V system monitoring |
| ±2.5% threshold accuracy over temp | Ensures consistent reset behavior across industrial temperature range without calibration |
| 30ms fixed timeout (D2) | Meets JEDEC JESD76 requirements for minimum reset pulse width in µP boot sequences |
| 7.5µA supply current | Enables continuous supervision in energy-harvesting or coin-cell-powered devices |
| Immunity to <100ns VCC glitches | Prevents spurious resets from digital noise or switching regulator ripple |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Wearable ECG patch monitors battery voltage and asserts reset if Li-ion drops below 3.0V (scaled via external divider on higher-VCC variants; MAX6832FXRD0 directly supervises 1.2V core rail). IC Role / Device Role / Timing Role: Power-on reset generator and brownout detector for ARM Cortex-M0+ MCU core supply. Use Value: Prevents firmware crash during battery sag by guaranteeing 30ms reset pulse while consuming only 7.5µA - extending operational runtime. |
Use Scenario: DIN-rail mounted analog input module uses MAX6832FXRD0 to supervise isolated 1.2V digital supply feeding FPGA configuration memory. IC Role / Device Role / Timing Role: Fault-tolerant reset supervisor ensuring FPGA reconfiguration only occurs after stable 1.2V rail is confirmed. Use Value: ±2.5% threshold accuracy prevents premature reset release during thermal drift, improving field reliability in uncooled enclosures. |
| Smart Meter SoC Power Management | Low-Power Wireless Sensor Nodes |
Use Scenario: Sub-GHz RF SoC in AMI meter employs MAX6832FXRD0 to monitor 1.2V LDO output powering digital baseband logic. IC Role / Device Role / Timing Role: Primary reset source synchronized to power rail stabilization - no software dependency. Use Value: 0.55V minimum VCC operation allows reset assertion through full battery discharge curve, avoiding undefined MCU state. |
Use Scenario: BLE temperature node powered by CR2032 uses MAX6832FXRD0 to supervise 1.2V buck converter output feeding MCU and radio. IC Role / Device Role / Timing Role: Ultra-low-quiescent supervisor enabling >10-year shelf life with zero external components. Use Value: SC70-3 footprint (1.25mm × 0.85mm) saves >0.5mm² PCB area vs. SOT-23 - critical for miniaturized IoT endpoints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD1 | Same 3-pin SC70, 1.05V threshold, but 140ms timeout (not 30ms); 10µA ICC | Longer reset pulse - suitable where extended initialization is required, less optimal for fast-boot µPs | Select MAX809TRD1 only if system requires >100ms reset hold time; otherwise MAX6832FXRD0 offers tighter timing control. |
| TPS3123E10DBVR | 3-pin SOT-23, 1.0V threshold, 200ms timeout, 1.6µA ICC - lower current but longer delay and different package | Ultra-low ICC benefits battery life, but 200ms timeout may violate µP minimum reset spec; SOT-23 footprint incompatible with SC70 layout | Choose TPS3123E10DBVR only when minimizing quiescent current is primary goal and board redesign is acceptable. |
Compared with MAX809TRD1 and TPS3123E10DBVR, the MAX6832FXRD0 uniquely balances 30ms precision timing, 7.5µA consumption, and SC70-3 compatibility - making it optimal for space-constrained, fast-boot embedded systems requiring exact brownout response.
Availability
MAX6832FXRD0 is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, smart meter SoC power management, and low-power wireless sensor nodes requiring stable component supply with guaranteed long-term sourcing.
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 power, sensing, and interface applications - with emphasis on high-reliability, low-power solutions for industrial and computing markets.
The MAX6832–MAX6840 family was developed specifically for ultra-low-voltage microprocessor supervision in battery-powered and energy-sensitive systems - delivering factory-trimmed thresholds, nanoscale leakage control, and SC70 packaging for next-generation portable electronics.
FAQ
What is the exact reset threshold voltage of the MAX6832FXRD0?
The MAX6832FXRD0 has a factory-set reset threshold of 1.050V with ±2.5% accuracy over the full -40°C to +85°C operating temperature range. This value is specified in the Threshold Suffix Guide (suffix 'F') and confirmed in the Electrical Characteristics table under VTH parameter. The MAX6832FXRD0 does not support adjustable threshold - it monitors VCC directly using this fixed reference.
Does the MAX6832FXRD0 include a manual reset (MR) input?
No, the MAX6832FXRD0 does not include a manual reset (MR) input. As a member of the MAX6832–MAX6837 subgroup in SC70-3 packaging, it contains only three pins: VCC, GND, and RESET. MR functionality is present only on 4-pin variants like MAX6835/MAX6836/MAX6837. The MAX6832FXRD0 relies solely on VCC monitoring for reset assertion.
What is the reset timeout period for the MAX6832FXRD0?
MAX6832FXRD0 uses the D2 timeout option, providing a fixed 30ms reset active period after VCC rises above the 1.050V threshold or after fault clearance. This value is defined in Table 2 (Active Timeout Period Guide) and is implemented via internal RC timing - no external components required. The 30ms duration satisfies JEDEC JESD76 minimum pulse width for most modern microcontrollers.
Can the MAX6832FXRD0 operate with supply voltages below 1.2V?
Yes, the MAX6832FXRD0 operates with VCC as low as 0.55V while maintaining valid reset output functionality. Its absolute minimum VCC for guaranteed RESET assertion is 0.55V (active-low), and it remains functional up to 3.6V. However, the 1.050V reset threshold means it is intended for nominal 1.2V systems - operation below 1.050V triggers reset, not normal supervision.
Is the MAX6832FXRD0 pin-compatible with legacy Maxim reset supervisors?
Yes, the MAX6832FXRD0 is pin-compatible with the MAX803/MAX809/MAX810 series in SC70-3 packaging. Pin 1 = GND, Pin 2 = RESET, Pin 3 = VCC - identical mapping. This allows drop-in replacement in existing designs targeting 1.05V supervision, provided the timeout requirement (30ms vs. MAX809's 140ms) is verified for system compatibility.
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:
- Simple Reset/Power-On Reset
- 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.
MAX6832FXRD0 Tags
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