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Analog Devices Inc./Maxim Integrated MAX6833HXRD0+T
- Part No.:
- MAX6833HXRD0+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6833HXRD0+T.pdf
- Description:
- IC MPU SUPERVISOR SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,023
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Product details
Overview
MAX6833HXRD0+T from Maxim Integrated is a push-pull active-high voltage supervisor IC designed to monitor +1.313V supply rails in ultra-low-voltage microprocessor systems. It provides factory-set 1.313V reset threshold with ±2.5% accuracy over temperature, 7.5µA typical supply current, and 1.5ms reset timeout period (D1 suffix), ensuring reliable power-on reset for battery-powered embedded controllers.
For engineers reviewing the MAX6833HXRD0+T datasheet, MAX6833HXRD0+T pinout, MAX6833HXRD0+T application, or MAX6833HXRD0+T equivalent, key selection criteria include active-high push-pull output compatibility with µP reset inputs requiring HIGH assertion, guaranteed reset validity down to VCC = 0.75V, immunity to sub-100ns MR glitches, and SC70-3 package suitability for space-constrained portable designs.
Technical Context
The MAX6833HXRD0+T implements a precision bandgap-based voltage comparator with hysteresis (0.75% of VTH) to detect VCC drops below its fixed 1.313V threshold. Its internal timing circuit generates a precise 1.5ms reset assertion window after VCC recovery or manual reset deassertion.
It features an internally pulled-up manual reset input (MR) with 20kΩ pullup, 2µs minimum pulse width requirement, and 100ns glitch rejection. The push-pull RESET output drives HIGH with VOH ≥ 0.8×VCC at ISOURCE = 10µA when asserted, and remains valid down to VCC = 0.75V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.313V ±2.5% - precisely matches 1.3V core supplies without external adjustment |
| Reset Timeout Period | 1.5ms - ensures sufficient hold time for µP initialization after power stabilization |
| Supply Current | 7.5µA typ - enables multi-year operation on coin-cell batteries in always-on monitoring |
| Operating Voltage Range | 0.75V to 3.6V - guarantees reset assertion even during deep brownout conditions |
| MR Input Glitch Rejection | 100ns - prevents spurious resets from EMI or PCB noise coupling onto reset line |
| Output Type | Push-pull active-high - eliminates need for external pullup resistor in most µP interfaces |
| Package | SC70-3 - 2.0mm × 2.1mm footprint ideal for wearables and compact IoT sensors |
Pinout & Package
MAX6833HXRD0+T is housed in a 3-pin SC70-3 package (2.0mm × 2.1mm × 0.95mm height) with gull-wing leads, RoHS-compliant lead-free finish (+T suffix), and moisture sensitivity level 1.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for all internal comparators and output stage; must be low-impedance connection to system ground plane |
| 2 | RESET | Push-pull active-high reset output; drives HIGH during reset condition to satisfy µP reset-input logic requirements |
| 3 | VCC | Monitored supply input and power source; accepts 0.75V–3.6V; internal circuitry remains functional down to 0.75V |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 1.313V threshold | Eliminates external resistor divider, reducing BOM count and layout area in 1.3V rail monitoring |
| 1.5ms fixed timeout period | Matches typical µP power-up sequencing requirements without timing capacitor tolerance drift |
| 7.5µA supply current | Enables continuous supervision in energy-harvesting nodes with <10µW average power budget |
| MR input with 20kΩ internal pullup | Supports direct switch-to-ground connection without external components for field-service reset capability |
| Guaranteed reset validity to 0.75V VCC | Ensures deterministic reset behavior during gradual battery discharge in portable medical devices |
Applications
| Wearable Health Monitors | Industrial Sensor Nodes |
|---|---|
|
Use Scenario: Continuous ECG/PPG sensing powered by CR2032 coin cell with 1.3V LDO output. IC Role / Device Role / Timing Role: Voltage supervisor asserting active-high RESET to ARM Cortex-M0+ during brownout events below 1.313V. Use Value: Prevents firmware corruption during battery sag by holding µP in reset until stable 1.3V rail is restored for >1.5ms. |
Use Scenario: Wireless vibration sensor deployed in factory machinery with intermittent 1.3V supply from energy harvester. IC Role / Device Role / Timing Role: Power-on reset generator ensuring clean µC boot sequence after cold start from harvested energy. Use Value: 7.5µA quiescent current extends operational uptime between harvest cycles; SC70-3 footprint fits 8mm² PCB area constraint. |
| Smart Meter Battery Backup | Portable Diagnostic Tools |
|
Use Scenario: Lithium-thionyl chloride backup supply powering real-time clock and memory during main AC failure. IC Role / Device Role / Timing Role: Supervisory circuit monitoring 1.3V RTC rail and asserting RESET to preserve SRAM contents during voltage collapse. Use Value: ±2.5% threshold accuracy over -40°C to +85°C ensures reliable operation across outdoor temperature extremes. |
Use Scenario: Handheld ultrasound probe with 1.3V FPGA core supply and manual reset button for field recalibration. IC Role / Device Role / Timing Role: Active-high reset controller interfacing directly to FPGA's reset pin with no external pullup required. Use Value: Internal 20kΩ MR pullup simplifies front-panel button design; 100ns glitch rejection prevents false triggers from ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6381XR22D3+T | Same SC70-3 package, 2.2V reset threshold, 1.5ms timeout, but active-low push-pull output | Requires µP with active-low reset input; incompatible with active-high logic families without level-shifting | Select only if system uses 2.2V I/O rails and µP reset pin expects LOW assertion |
| TPS3123E13DBVR | 2.5V supply minimum, 1.3V threshold, 200ms timeout, SOT-23-3 package | Higher minimum VCC (2.5V) prevents use in sub-1.8V systems; longer timeout may delay µP startup unnecessarily | Consider only for higher-voltage industrial controllers where 200ms reset hold is acceptable |
Compared with MAX6833HXRD0+T, MAX6381XR22D3+T requires redesign of reset signal polarity handling, while TPS3123E13DBVR cannot operate below 2.5V supply-making MAX6833HXRD0+T uniquely suitable for 1.3V battery-backed portable electronics requiring active-high assertion and ultra-low ICC.
Availability
MAX6833HXRD0+T is available at Aetrix Electronics and suitable for wearable health monitors, industrial sensor nodes, smart meter battery backup systems, and portable diagnostic tools requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6833HXRD0+T 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 is a semiconductor company specializing in analog and mixed-signal ICs for power management, interface, sensing, and reliability-critical applications.
The MAX6832–MAX6840 family was designed specifically for ultra-low-voltage microprocessor reset supervision in portable and battery-operated equipment, emphasizing minimal quiescent current and precise threshold accuracy.
FAQ
What is the exact reset threshold voltage of the MAX6833HXRD0+T?
The MAX6833HXRD0+T has a factory-set reset threshold of 1.313V with ±2.5% accuracy over the full -40°C to +85°C operating temperature range. This value is confirmed in the Electrical Characteristics table under "Reset Threshold" for suffix H, and applies specifically to the MAX6833HXRD0+T variant-not the broader MAX6833 family.
Does the MAX6833HXRD0+T require an external pullup resistor on its RESET pin?
No, the MAX6833HXRD0+T does not require an external pullup resistor because it features a push-pull active-high RESET output. The internal driver actively pulls the RESET pin HIGH during reset assertion and LOW otherwise, eliminating reliance on external passive components for logic-level translation.
What is the minimum VCC voltage at which the MAX6833HXRD0+T guarantees valid reset output operation?
The MAX6833HXRD0+T guarantees valid reset output operation down to VCC = 0.75V for active-high assertion. This is explicitly specified in the Electrical Characteristics table under "Guaranteed Reset Valid to VCC" for MAX6833/MAX6836/MAX6839 variants, and ensures deterministic behavior during deep brownout conditions.
Can the MAX6833HXRD0+T be used with a manual reset switch?
Yes, the MAX6833HXRD0+T supports manual reset via its MR pin, which includes a built-in 20kΩ pullup resistor to VCC. Connecting a normally open momentary switch from MR to GND initiates a reset, and the device holds reset active for the full 1.5ms timeout after switch release-no external debounce components are needed.
What timeout period is implemented in the MAX6833HXRD0+T?
The MAX6833HXRD0+T implements a 1.5ms reset active timeout period, indicated by the "D1" suffix in its part number. This value is confirmed in Table 2 ("Active Timeout Period Guide") and is fixed-no external capacitor or resistor is required to set or adjust this timing interval.
MAX6833HXRD0+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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 High
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6833HXRD0+T FAQ
1.How can I place an order for MAX6833HXRD0+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6833HXRD0+T 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 MAX6833HXRD0+T reliable?
The price and inventory of MAX6833HXRD0+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6833HXRD0+T is usually 5 days.
3.What payment methods are accepted for MAX6833HXRD0+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6833HXRD0+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6833HXRD0+T?
MAX6833HXRD0+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6833HXRD0+T 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 MAX6833HXRD0+T?
For technical support, including MAX6833HXRD0+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6833HXRD0+T requirements.
6.How does Aetrix verify that MAX6833HXRD0+T is sourced from the original manufacturer or authorized distributors?
All MAX6833HXRD0+T 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 MAX6833HXRD0+T meets industry standards.
7.What is the process for return or replacement of MAX6833HXRD0+T?
All MAX6833HXRD0+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6833HXRD0+T, 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 MAX6833HXRD0+T part is unused and in its original packaging.
Return procedure for MAX6833HXRD0+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6833HXRD0+T Tags
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MIC826SYMT-TR
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APX803L20-29SA-7
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