My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6833FXRD0+
- Part No.:
- MAX6833FXRD0+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6833FXRD0+.pdf
- Description:
- MAX6833 ULTRA-LOW-VOLTAGE VOLTAG
- Quantity:
- Payment:
- Shipping:
Inventory:2,104
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6833FXRD0+ from Maxim Integrated is a push-pull active-high microprocessor supervisory circuit in SC70-3 package, designed to monitor +1.05V supply voltage with ±2.5% threshold accuracy over temperature, 7.5µA typical supply current, and 1.5ms reset timeout period (D1 suffix). It ensures reliable power-on reset for low-voltage µP systems in portable equipment.
For engineers reviewing the MAX6833FXRD0+ datasheet, MAX6833FXRD0+ pinout, MAX6833FXRD0+ application, or MAX6833FXRD0+ equivalent, key selection criteria include its 1.05V factory-set reset threshold, active-high push-pull RESET output, SC70-3 footprint compatibility, and immunity to short VCC transients-critical for battery-powered embedded designs.
Technical Context
The MAX6833FXRD0+ implements a precision bandgap-based voltage comparator with hysteresis (0.75% of VTH) to detect VCC drops below 1.05V, asserting an active-high RESET signal. Its internal 20kΩ MR pullup enables direct switch-to-ground manual reset without external components.
It guarantees valid RESET assertion down to VCC = 0.75V (active-high), supports operation across -40°C to +85°C, and features glitch rejection on MR input (100ns minimum pulse rejection) and propagation delay of 1.5ms after VCC recovery-ensuring deterministic reset timing during brownout recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.050V ±2.5% - precisely matches 1.05V nominal supply rails; stable over full temperature range |
| Reset Timeout Period | 1.5ms (D1 suffix) - provides sufficient hold time for µP initialization after power stabilization |
| Supply Current | 7.5µA typ at 1.2V - enables multi-year battery life in always-on monitoring applications |
| Operating Voltage Range | 0.75V to 3.6V - supports valid reset assertion even during deep brownout conditions |
| Output Type | Push-pull active-high RESET - drives high without external pullup; compatible with CMOS µP reset inputs |
| Package | SC70-3 - 1.25mm × 2.0mm footprint; space-constrained PCBs in portable electronics |
| MR Input | Debounced, internally pulled up to VCC (20kΩ) - eliminates need for external RC network or logic drivers |
Pinout & Package
MAX6833FXRD0+ uses the 3-pin SC70 package (1.25mm × 2.0mm, 0.65mm pitch), optimized for ultra-compact portable designs. Pin 1 is GND, Pin 2 is RESET (push-pull active-high), and Pin 3 is VCC.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for all internal comparators and output stage; must be low-impedance connection |
| 2 | RESET | Push-pull active-high output; drives HIGH during reset assertion; sinks 150µA at 0.8×VCC when asserted |
| 3 | VCC | Monitored supply input and power source; operates down to 0.75V while maintaining valid RESET output |
Key Features
| Feature | Design Value |
|---|---|
| Factory-set 1.05V threshold | Eliminates external resistor networks and calibration; reduces BOM count and layout complexity |
| 1.5ms fixed timeout (D1) | Guarantees µP core and peripherals fully stabilize before release; avoids race conditions in multi-rail systems |
| 7.5µA supply current | Enables continuous supervision in energy-harvesting or coin-cell-powered devices without compromising runtime |
| MR debounce & 20kΩ pullup | Supports direct mechanical switch interface; removes need for external debouncing circuitry or logic gates |
| Immunity to 100ns VCC glitches | Prevents spurious resets from digital noise or switching regulator ripple; improves system robustness |
Applications
| Wearable Health Monitors | Industrial Sensor Nodes |
|---|---|
|
Use Scenario: Continuous ECG/PPG sensing powered by CR2032 battery with 1.05V LDO output. IC Role / Device Role / Timing Role: Supervises LDO output and asserts active-high RESET to ARM Cortex-M0+ MCU until stable. Use Value: Ensures deterministic boot sequence after cold start or battery insertion; 7.5µA quiescent current extends sensor node lifetime beyond 2 years. |
Use Scenario: Wireless vibration sensor node using sub-1V RF SoC and 1.05V analog front-end. IC Role / Device Role / Timing Role: Monitors 1.05V rail feeding ADC and RF transceiver; holds RESET high for 1.5ms during wake-up from deep sleep. Use Value: Prevents corrupted ADC sampling or RF transmission errors caused by premature MCU execution before analog supply stabilization. |
| Portable Medical Diagnostics | Low-Power IoT Edge Controllers |
|
Use Scenario: Handheld blood glucose meter with single-cell Li-ion (3.0–4.2V) and 1.05V buck converter. IC Role / Device Role / Timing Role: Detects 1.05V rail collapse during battery discharge; asserts RESET to halt firmware execution before memory corruption. Use Value: Meets IEC 62304 safety requirement for fail-safe shutdown; ±2.5% threshold accuracy ensures consistent trip point across temperature and unit variance. |
Use Scenario: Smart building controller with dual 1.05V domains (MCU core and communication PHY). IC Role / Device Role / Timing Role: Provides synchronized reset to both domains via shared RESET net; leverages push-pull drive to avoid weak pullup conflicts. Use Value: Eliminates need for level shifters or additional buffers; SC70-3 footprint allows placement adjacent to µP without routing congestion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar µP supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6833HXRD0+ | 1.313V reset threshold (H suffix); otherwise identical pinout, package, and D1 timeout | Designed for 1.3V supply rails; not suitable for 1.05V systems without redesign | Select only if target supply voltage is ≥1.25V; verify µP reset input VIH compatibility |
| MAX6316HUT46+T | Active-low open-drain output; 1.313V threshold; SOT-23-3 package; 1.6V to 5.5V VCC range | Requires external pullup; incompatible with active-high µP reset inputs without inversion logic | Use only when board layout accommodates pullup resistor and system design tolerates active-low assertion |
Compared with MAX6833FXRD0+, MAX6833HXRD0+ shifts the reset threshold upward by 263mV-making it unsuitable for 1.05V applications but viable for higher-voltage rails-while MAX6316HUT46+T introduces open-drain topology and wider VCC range at the cost of added external components and signal polarity mismatch.
Availability
MAX6833FXRD0+ is available at Aetrix Electronics and suitable for portable medical diagnostics, wearable health monitors, and industrial sensor nodes requiring stable component supply with guaranteed long-term availability and lead-free compliance.
Supply support for MAX6833FXRD0+ 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, automotive, and computing applications.
The MAX6832–MAX6840 family was designed specifically for ultra-low-voltage µP supervision in space- and power-constrained systems, targeting battery-powered portable electronics and energy-efficient embedded controllers.
FAQ
What is the exact reset threshold voltage of the MAX6833FXRD0+?
The MAX6833FXRD0+ 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 confirmed in the Electrical Characteristics table under "Reset Threshold (VTH)" for the F suffix, and applies directly to the MAX6833FXRD0+ without adjustment or calibration.
Does the MAX6833FXRD0+ require an external pullup resistor on its RESET pin?
No, the MAX6833FXRD0+ does not require an external pullup resistor because it features a push-pull active-high RESET output. The internal driver actively pulls RESET HIGH during reset assertion and LOW otherwise, eliminating dependency on external passive components for signal integrity.
What is the function of the MR pin on the MAX6833FXRD0+?
The MR (Manual Reset) pin on the MAX6833FXRD0+ is an active-low input with an internal 20kΩ pullup to VCC. Pulling MR low forces an immediate reset assertion, and reset remains active for the full 1.5ms timeout after MR is released. No external debounce circuitry is needed due to built-in filtering.
Can the MAX6833FXRD0+ operate reliably below 1.0V supply voltage?
Yes, the MAX6833FXRD0+ guarantees valid active-high RESET output down to VCC = 0.75V, as specified in the Absolute Maximum Ratings and Electrical Characteristics tables. Below 0.75V, reset functionality is not assured, but the device remains undamaged up to 0.55V.
Is the MAX6833FXRD0+ pin-compatible with other devices in the MAX6832–MAX6840 family?
Yes, the MAX6833FXRD0+ shares the same 3-pin SC70-3 package and pinout (GND, RESET, VCC) with all MAX6832/MAX6833/MAX6834 variants in the XRD_-T/+ format. However, output polarity (active-high vs. active-low) and reset threshold differ by suffix, so electrical compatibility must be verified per application.
MAX6833FXRD0+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- Type:
- Voltage Detector
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.05V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 70µs Typical
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6833FXRD0+ FAQ
1.How can I place an order for MAX6833FXRD0+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6833FXRD0+ 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 MAX6833FXRD0+ reliable?
The price and inventory of MAX6833FXRD0+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6833FXRD0+ is usually 5 days.
3.What payment methods are accepted for MAX6833FXRD0+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6833FXRD0+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6833FXRD0+?
MAX6833FXRD0+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6833FXRD0+ 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 MAX6833FXRD0+?
For technical support, including MAX6833FXRD0+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6833FXRD0+ requirements.
6.How does Aetrix verify that MAX6833FXRD0+ is sourced from the original manufacturer or authorized distributors?
All MAX6833FXRD0+ 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 MAX6833FXRD0+ meets industry standards.
7.What is the process for return or replacement of MAX6833FXRD0+?
All MAX6833FXRD0+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6833FXRD0+, 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 MAX6833FXRD0+ part is unused and in its original packaging.
Return procedure for MAX6833FXRD0+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6833FXRD0+ 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…
