My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6833HXRD3+
- Part No.:
- MAX6833HXRD3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6833HXRD3+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,788
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6833HXRD3+ 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, 210ms reset timeout period (D3 suffix), and guaranteed reset assertion down to VCC = 0.75V. Used for reliable power-on reset and brownout protection in portable battery-powered devices.
For engineers reviewing the MAX6833HXRD3+ datasheet, MAX6833HXRD3+ pinout, MAX6833HXRD3+ application, or MAX6833HXRD3+ equivalent, this page delivers verified electrical parameters, SC70-3 package details, reset timing behavior, manual reset interface guidance, and validated alternative options for low-voltage µP supervision.
Technical Context
The MAX6833HXRD3+ implements a precision bandgap-based voltage comparator with internal hysteresis (0.75% of VTH) to reject fast VCC transients. Its reset logic asserts an active-high push-pull output when VCC falls below 1.313V or MR is pulled low, holding RESET high for exactly 210ms after recovery.
This variant belongs to the MAX6833 subgroup-featuring no RESET-IN pin, no adjustable threshold, and a debounced manual reset input (MR) with 20kΩ internal pullup. It operates across -40°C to +85°C and draws only 9µA typical supply current at 1.8V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.313V ±2.5% - precisely matches 1.3V-core supply monitoring with minimal external tolerance burden |
| Reset Timeout Period | 210ms - ensures sufficient hold time for slow-ramping digital systems before release |
| Supply Voltage Range | +0.75V to +3.6V - supports operation during deep brownout while maintaining valid RESET output |
| Supply Current | 9µA (typ) at 1.8V - enables multi-year battery life in always-on supervisory applications |
| Output Type | Push-pull active-high - eliminates need for external pullup resistor; drives CMOS inputs directly |
| Manual Reset Input | Debounced MR with 20kΩ internal pullup - allows momentary switch interface without external RC filtering |
| VCC Transient Immunity | Rejects <100ns glitches at 200mV overdrive - prevents spurious resets in noisy power environments |
Pinout & Package
MAX6833HXRD3+ is housed in a 3-pin SC70-3 package (2.0mm × 2.1mm × 0.95mm), optimized for space-constrained portable designs. The package is RoHS-compliant (indicated by '+' suffix) and rated for -40°C to +85°C operation.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for all internal circuitry and reset comparator; must be low-impedance connection |
| 2 | RESET | Push-pull active-high output; sinks 150µA / sources 80µA; asserts HIGH during fault condition |
| 3 | VCC | Monitored supply input and power source; also used as reference for MR pullup and internal biasing |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 1.313V threshold | Eliminates external resistor network; reduces BOM count and layout area in 1.3V system designs |
| 210ms fixed timeout (D3) | Matches typical boot-time requirements of ARM Cortex-M0/M3 microcontrollers without configuration overhead |
| Active-high push-pull output | Directly interfaces with µP reset pins requiring HIGH-active assertion; no external pullup needed |
| MR debounce & 20kΩ internal pullup | Enables clean manual reset using simple SPST switch; removes need for external RC filter or logic gate |
| 0.75V minimum VCC for valid RESET | Guarantees reset signal integrity during deep discharge of Li-ion cells (down to ~3.0V pack voltage) |
Applications
| Wearable Health Monitor | Industrial Sensor Node |
|---|---|
Use Scenario: A wrist-worn ECG sensor powered by a single-cell Li-ion battery operating between 4.2V and 3.0V, with 1.3V LDO supplying its MCU and analog front-end. IC Role / Device Role / Timing Role: Supervises the 1.3V rail and asserts active-high RESET to the MCU during brownout, ensuring deterministic restart before analog corruption occurs. Use Value: Prevents firmware lockup during battery sag; 210ms timeout aligns with ADC settling and reference stabilization time. |
Use Scenario: A battery-powered wireless temperature node deployed in remote HVAC ducts, exposed to wide ambient temperature swings (-25°C to +70°C). IC Role / Device Role / Timing Role: Monitors 1.3V core supply of an ultra-low-power sub-GHz transceiver MCU, asserting RESET on cold-start undervoltage. Use Value: ±2.5% threshold stability over temperature avoids false resets at extremes; 7.5–9µA ICC extends 10-year battery life. |
| Medical Point-of-Care Device | Portable Barcode Scanner |
Use Scenario: A handheld glucose meter using a 1.3V rail for its precision ADC and display driver, powered by two AAA alkaline cells. IC Role / Device Role / Timing Role: Detects end-of-life battery drop below 1.313V and holds MCU in reset until user replaces batteries. Use Value: Factory-set threshold eliminates calibration drift risk; active-high output matches common MCU reset polarity. |
Use Scenario: A cordless barcode scanner with aggressive power cycling-wakes from deep sleep every 500ms to scan, then returns to 0.5µA standby. IC Role / Device Role / Timing Role: Ensures clean power-up sequence each wake cycle by asserting RESET for 210ms after VCC stabilizes. Use Value: Low 9µA quiescent current minimizes sleep-mode drain; SC70-3 footprint saves PCB area near battery connector. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6833HXRD1+ | Same 1.313V threshold and SC70-3 package, but 1.5ms reset timeout (D1) | Better suited for fast-boot MCUs where 210ms is excessive; shorter delay reduces perceived startup latency | Select when system boot completes in <5ms and long reset hold time risks missing first interrupt or timer tick |
| MAX6381XR22+T | 1.22V threshold, 200ms timeout, SOT23-3 package, 3.5µA ICC | Lower threshold targets 1.2V-core SoCs; lower current benefits multi-year coin-cell applications | Choose for 1.2V systems or when sub-5µA supply current is mandatory; not pin-compatible with MAX6833HXRD3+ |
Compared with MAX6833HXRD3+, MAX6833HXRD1+ offers faster release timing for responsive systems, while MAX6381XR22+T trades threshold precision and package compatibility for ultra-low current and 1.2V targeting-neither is pin-compatible, requiring layout revision.
Availability
MAX6833HXRD3+ is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor nodes, wearable electronics, and battery-powered instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6833HXRD3+ 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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, medical, and communications applications.
The MAX6832–MAX6840 family was designed specifically for ultra-low-voltage microprocessor supervision in space- and power-constrained portable systems, emphasizing factory-trimmed accuracy, minimal external components, and robust transient immunity.
FAQ
What is the exact reset threshold voltage of the MAX6833HXRD3+?
The MAX6833HXRD3+ has a factory-set reset threshold of 1.313V, specified 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 (VTH)" for suffix 'H', and applies directly to the MAX6833HXRD3+ without adjustment or calibration.
Does the MAX6833HXRD3+ support manual reset functionality?
Yes, the MAX6833HXRD3+ includes a debounced manual reset input (MR) with an internal 20kΩ pullup resistor to VCC. Pulling MR low forces an immediate active-high reset assertion, which remains for the full 210ms timeout after MR is released. No external debounce circuitry is required, simplifying system-level reset button implementation.
What is the minimum VCC voltage at which the MAX6833HXRD3+ guarantees valid RESET output?
The MAX6833HXRD3+ guarantees valid active-high RESET output down to VCC = 0.75V. Below this level, the push-pull driver may not maintain proper logic levels. This specification is explicitly stated in the Absolute Maximum Ratings and Electrical Characteristics sections for the MAX6833 subgroup and is critical for brownout detection in deeply discharged battery systems.
Is the MAX6833HXRD3+ pin-compatible with older Maxim reset ICs like the MAX809?
No, the MAX6833HXRD3+ is not pin-compatible with the MAX809. While the datasheet notes functional compatibility with MAX803/MAX809/MAX810 series, the MAX6833HXRD3+ uses a 3-pin SC70-3 package with pinout GND/RESET/VCC, whereas MAX809 uses SOT23-3 with pinout VCC/GND/RESET. Physical layout changes are required for substitution.
What does the 'D3' suffix in MAX6833HXRD3+ indicate?
The 'D3' suffix in MAX6833HXRD3+ specifies a 210ms reset active timeout period, per the Active Timeout Period Guide in the datasheet. This value is factory-programmed and non-adjustable. It defines the minimum duration RESET remains asserted after VCC recovers above 1.313V or after MR is released, ensuring reliable system initialization.
MAX6833HXRD3+ 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
MAX6833HXRD3+ FAQ
1.How can I place an order for MAX6833HXRD3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6833HXRD3+ 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 MAX6833HXRD3+ reliable?
The price and inventory of MAX6833HXRD3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6833HXRD3+ is usually 5 days.
3.What payment methods are accepted for MAX6833HXRD3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6833HXRD3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6833HXRD3+?
MAX6833HXRD3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6833HXRD3+ 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 MAX6833HXRD3+?
For technical support, including MAX6833HXRD3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6833HXRD3+ requirements.
6.How does Aetrix verify that MAX6833HXRD3+ is sourced from the original manufacturer or authorized distributors?
All MAX6833HXRD3+ 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 MAX6833HXRD3+ meets industry standards.
7.What is the process for return or replacement of MAX6833HXRD3+?
All MAX6833HXRD3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6833HXRD3+, 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 MAX6833HXRD3+ part is unused and in its original packaging.
Return procedure for MAX6833HXRD3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6833HXRD3+ Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
