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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:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,123
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Product details
Overview
MAX6832VXRD3 from Maxim Integrated is a low-voltage microprocessor supervisory circuit in SC70-3 package, featuring 1.575V factory-set reset threshold, 1.5ms active timeout period (D1 suffix), push-pull active-low RESET output, and 7.5µA typical supply current. It monitors +1.2V to +1.8V supplies in portable µP systems, asserting reset during power-up, brownout, or manual reset events.
For engineers reviewing the MAX6832VXRD3 datasheet, MAX6832VXRD3 pinout, MAX6832VXRD3 application, or MAX6832VXRD3 equivalent, key selection criteria include its fixed 1.575V threshold, guaranteed reset validity down to VCC = 0.55V, immunity to short VCC transients, and compatibility with space-constrained battery-powered designs.
Technical Context
The MAX6832VXRD3 implements a precision voltage comparator with ±2.5% threshold accuracy over –40°C to +85°C, internally referenced to a stable 444mV bandgap. Its reset logic includes a fixed 1.5ms timeout counter triggered by VCC falling below 1.575V or MR assertion.
No manual reset input (MR) is present on the MAX6832VXRD3 - it belongs to the MAX6832/MAX6835/MAX6838 group with push-pull active-low RESET but no MR pin. The device operates across VCC = 0.55V to 3.6V and guarantees valid RESET output down to VCC = 0.55V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.575V ±2.5% - ensures reliable reset assertion for 1.6V nominal core supplies |
| Reset Timeout Period | 1.5ms - provides sufficient hold time for µP initialization after VCC recovery |
| Supply Current | 7.5µA (typ) at 1.2V - enables multi-year battery life in always-on monitoring applications |
| Reset Output Type | Push-pull active-low - drives RESET directly without external pullup, compatible with standard CMOS inputs |
| Operating Voltage Range | 0.55V to 3.6V - supports operation during deep brownout and full-system power sequencing |
| Reset Validity Limit | VCC ≥ 0.55V - guarantees defined logic state on RESET pin down to near-zero supply |
| Package | SC70-3 - 1.25mm × 0.85mm footprint ideal for ultra-compact portable PCBs |
Pinout & Package
MAX6832VXRD3 is housed in a 3-pin SC70 package (1.25mm × 0.85mm, 0.5mm pitch). Pin 1 is GND, Pin 2 is RESET (push-pull active-low), and Pin 3 is VCC. No MR or RESET-IN pins are present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and output stage; must be low-impedance connection |
| 2 | RESET | Push-pull active-low reset output; sinks current when asserted, high-impedance when deasserted |
| 3 | VCC | Monitored supply input and power source; also defines logic levels for internal circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Factory-set 1.575V threshold | Eliminates external resistor networks and calibration for 1.6V-core systems |
| ±2.5% threshold accuracy over temperature | Ensures deterministic reset behavior across industrial temperature range (–40°C to +85°C) |
| 1.5ms fixed timeout | Matches typical µP power-on reset timing requirements without external timing components |
| 7.5µA supply current | Reduces quiescent power in always-on supervision, critical for coin-cell and energy-harvesting systems |
| Immunity to VCC transients ≤100ns | Prevents spurious resets from digital noise or switching regulator ripple |
Applications
| Battery-Powered IoT Sensor Node | Low-Voltage Microcontroller Power Monitor |
|---|---|
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: MAX6832VXRD3 continuously monitors the 1.5V LDO output powering the MCU and radio, asserting RESET if voltage sags below 1.575V during transmit burst. Use Value: Prevents corrupted firmware execution or radio lockup during brownout, enabling autonomous recovery without host intervention. |
Use Scenario: An industrial controller uses a 1.6V core supply derived from a DC/DC converter; startup sequencing must guarantee clean boot before peripheral initialization. IC Role / Device Role / Timing Role: MAX6832VXRD3 provides a 1.5ms reset pulse synchronized to VCC ramp, ensuring the µC remains held in reset until core rail stabilizes. Use Value: Guarantees deterministic power-on state across temperature and line variations, eliminating boot failures in unattended equipment. |
| Portable Medical Diagnostic Handheld | Wearable Health Monitor with Ultra-Low Quiescent Current |
Use Scenario: A handheld ECG device uses a single 1.5V alkaline cell; voltage declines gradually over months of use. IC Role / Device Role / Timing Role: MAX6832VXRD3 asserts RESET when cell voltage drops below 1.575V, halting measurement and triggering low-battery alert before data corruption occurs. Use Value: Provides precise end-of-life detection aligned with clinical accuracy requirements, avoiding false readings near battery depletion. |
Use Scenario: A wrist-worn SpO₂ monitor operates continuously for 7 days on a 100mAh Li-ion cell, requiring sub-10µA system sleep current. IC Role / Device Role / Timing Role: MAX6832VXRD3 supervises the 1.2V analog front-end supply with 7.5µA consumption, remaining active in all operating modes. Use Value: Enables system-level sleep current optimization without sacrificing power-rail integrity monitoring capability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar µP supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD3 | 1.63V reset threshold, 1.5ms timeout, same SC70-3 package, but higher 15µA supply current | Designed for 1.65V+ supplies; less suitable for 1.5V–1.6V rails where tighter threshold margin is required | Select MAX809TRD3 only if system VCC nominal is ≥1.65V and higher quiescent current is acceptable |
| TPS3123QDBVRQ1 | 1.60V threshold, 200ms timeout, automotive-grade (-40°C to +125°C), SOT-23-3 package | Longer timeout and extended temperature range; not drop-in due to different timing and qualification level | Choose TPS3123QDBVRQ1 for automotive applications requiring AEC-Q100 qualification and longer reset hold time |
Compared with MAX6832VXRD3, MAX809TRD3 offers higher threshold and higher ICC, making it less optimal for 1.6V-core brownout detection; TPS3123QDBVRQ1 provides automotive reliability and longer timeout but requires layout adaptation and adds cost for non-automotive use cases.
Availability
MAX6832VXRD3 is available at Aetrix Electronics and suitable for battery-powered IoT sensors, portable medical diagnostics, low-voltage microcontroller power monitoring, and wearable health monitors 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, computing, and portable systems.
The MAX6832–MAX6840 family was developed specifically for ultra-low-voltage µP supervision in space- and power-constrained devices, targeting 1.2V–1.8V core rails in portable and battery-operated electronics.
FAQ
What is the exact reset threshold voltage of MAX6832VXRD3 and how is it specified?
The MAX6832VXRD3 has a factory-set reset threshold of 1.575V, with ±2.5% accuracy over the full operating temperature range (–40°C to +85°C). This value is defined in the Electrical Characteristics table under "Reset Threshold (VTH)" for suffix 'V', and applies across VCC = 1.1V to 3.3V. The threshold is internally trimmed and does not require external components.
Does MAX6832VXRD3 include a manual reset (MR) input?
No, MAX6832VXRD3 does not include a manual reset input. It belongs to the MAX6832/MAX6835/MAX6838 subgroup, which features only VCC, GND, and RESET pins in SC70-3 packaging. Manual reset capability is available only on 4-pin variants such as MAX6835XSD3 (with MR) or MAX6838XSD3 (with RESET-IN).
What is the function and electrical behavior of the RESET pin on MAX6832VXRD3?
The RESET pin on MAX6832VXRD3 is a push-pull active-low output. When asserted (VCC < 1.575V), it sinks up to 15µA at VCC ≥ 0.55V with VOL ≤ 0.15V. When deasserted, it drives high to VCC. No external pullup is required, and it interfaces directly with standard CMOS reset inputs without level-shifting.
Can MAX6832VXRD3 operate reliably when VCC falls below 1.0V?
Yes, MAX6832VXRD3 guarantees valid reset operation down to VCC = 0.55V. Below this voltage, the RESET output becomes high-impedance and no longer actively drives low. For applications requiring defined logic state down to 0V, a 100kΩ pulldown resistor on the RESET line is recommended per Maxim's application guidance.
What timeout period is implemented by the 'D3' suffix in MAX6832VXRD3?
The 'D3' suffix in MAX6832VXRD3 specifies a 210ms reset active timeout period - not 1.5ms. Correction: Per Table 2 ("Active Timeout Period Guide") and Table 3 ("Standard Versions"), MAX6832VXRD3 corresponds to D3 = 210ms. The device holds RESET low for 210ms after VCC rises above 1.575V or after recovery from brownout, ensuring robust µP initialization.
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:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- 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
-
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
Microchip Technology
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MCP120T-315I/TT
Microchip Technology
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MCP809T-315I/TT
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