My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6833VXRD3+T
- Part No.:
- MAX6833VXRD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6833VXRD3+T.pdf
- Description:
- IC MPU SUPERVISOR SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,962
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6833VXRD3+T from Maxim Integrated is a push-pull active-high voltage supervisor IC designed for ultra-low-voltage microprocessor reset monitoring in 1.2V–1.8V digital systems. It features a factory-set 1.575V reset threshold, 210ms reset timeout period (D3 suffix), and 7.5µA typical supply current, enabling reliable power-on reset assertion in portable battery-powered equipment.
For engineers reviewing the MAX6833VXRD3+T datasheet, MAX6833VXRD3+T pinout, MAX6833VXRD3+T application, or MAX6833VXRD3+T equivalent, key selection considerations include its SC70-3 package, active-high push-pull RESET output, guaranteed reset validity down to VCC = 0.75V, and immunity to short negative VCC transients.
Technical Context
The MAX6833VXRD3+T implements a precision bandgap-based voltage comparator with ±2.5% threshold accuracy over –40°C to +85°C, paired with a fixed 210ms internal timeout timer. Its push-pull active-high RESET output drives high during fault conditions and remains asserted for the full timeout after VCC recovers above 1.575V.
No manual reset (MR) or RESET-IN input is present - this variant uses only VCC monitoring. The device operates across VCC = 0.75V to 3.6V, with guaranteed reset assertion down to 0.75V and valid output drive capability at VCC ≥ 0.85V (VOH ≥ 0.8×VCC at ISOURCE = 10µA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.575V ±2.5% - precisely monitors 1.6V nominal supplies with minimal drift over temperature |
| Reset Timeout Period | 210ms - ensures µP remains held in reset long enough for stable power rail recovery |
| Supply Current | 7.5µA (typ) at VCC = 1.2V - enables multi-year battery life in always-on low-power systems |
| Output Type | Push-pull active-high RESET - eliminates external pullup and supports direct CMOS logic interface |
| VCC Operating Range | 0.75V to 3.6V - guarantees reset assertion down to 0.75V and operation across wide supply margins |
| Reset Validity Limit | VCC ≥ 0.75V - RESET output remains valid and functional even during deep brownout |
| Package | SC70-3 - 1.25mm × 2.1mm footprint ideal for space-constrained portable PCBs |
Pinout & Package
MAX6833VXRD3+T is housed in a 3-pin SC70-3 package (1.25mm × 2.1mm, 0.65mm pitch). Pin 1 is GND, Pin 2 is RESET (push-pull active-high), and Pin 3 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - GND | Ground reference | Return path for internal comparator and output stage; must be low-impedance connection to system ground plane |
| 2 - RESET | Active-high push-pull reset output | Drives HIGH during reset assertion; sinks/source current per VOH/VOL specs; directly interfaces µP reset input without pullup |
| 3 - VCC | Supply and monitored voltage input | Both powers the IC and serves as the monitored rail; reset asserts when VCC falls below 1.575V |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 1.575V threshold | Eliminates external resistor networks and calibration; supports 1.6V core supply monitoring with ±2.5% tolerance |
| 210ms fixed reset timeout | Guarantees sufficient hold time for power rail stabilization and clock circuit lock before µP release |
| 7.5µA supply current | Reduces quiescent load on coin-cell or Li-ion backup supplies in always-on supervisory applications |
| SC70-3 package | Minimizes board area vs. SOT-23; compatible with standard pick-and-place and reflow processes |
| Immunity to VCC glitches | Rejects transients ≤100ns duration, preventing spurious resets in noisy power environments |
Applications
| Battery-Powered IoT Sensor Node | Low-Voltage FPGA Configuration Monitor |
|---|---|
Use Scenario: A coin-cell-powered environmental sensor node uses a 1.5V LDO to feed an ultra-low-power MCU and radio. Voltage droop during cold start or battery aging must trigger immediate reset. IC Role / Device Role / Timing Role: MAX6833VXRD3+T continuously monitors the 1.5V rail and asserts active-high RESET if voltage falls below 1.575V, holding the MCU in reset for 210ms after recovery. Use Value: Prevents corrupted firmware execution during marginal supply conditions while consuming only 7.5µA - extending battery life beyond 5 years. |
Use Scenario: An FPGA-based edge AI accelerator uses a 1.2V core supply; configuration fails if VCC dips during power-up sequencing. IC Role / Device Role / Timing Role: MAX6833VXRD3+T provides clean, glitch-immune reset assertion tied to the 1.2V rail, ensuring FPGA configuration begins only after stable core voltage is confirmed. Use Value: Guarantees valid reset down to 0.75V and delivers deterministic 210ms timeout - eliminating configuration failures due to undershoot or slow ramp rates. |
| Wearable Health Monitor | Industrial Microcontroller Module |
Use Scenario: A wrist-worn ECG monitor uses a 1.8V buck converter feeding an ARM Cortex-M0+. Supply ripple during motion-induced battery contact loss must not cause erratic behavior. IC Role / Device Role / Timing Role: MAX6833VXRD3+T detects sub-threshold excursions on the 1.8V rail and asserts active-high RESET, overriding any software-initiated reset until 210ms post-recovery. Use Value: Push-pull output ensures fast, robust reset signaling without external components - critical for medical-grade reliability in compact form factor. |
Use Scenario: A DIN-rail mounted PLC I/O module employs a 1.5V core supply; brownouts caused by shared 24V bus transients require deterministic reset behavior. IC Role / Device Role / Timing Role: MAX6833VXRD3+T acts as primary power supervisor, asserting RESET on VCC drop below 1.575V and maintaining it for 210ms to prevent partial state corruption. Use Value: ±2.5% threshold accuracy over –40°C to +85°C ensures consistent trip point across industrial temperature range without recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD3+T | Same SC70-3 package, 1.63V reset threshold, 140ms timeout (D3), 12µA ICC | Higher threshold and shorter timeout; less suitable for 1.5V–1.6V rails requiring longer hold time | Select MAX809TRD3+T only if system requires 1.63V trip point and tighter timing budget allows 140ms |
| TPS3808G15DBVR | SOT-23-5, 1.5V threshold, adjustable timeout (1.25ms–10s), 2.5µA ICC, enable input | Requires external capacitor for timeout setting; adds enable control but increases BOM count and layout area | Choose TPS3808G15DBVR when programmable timeout or enable functionality is required - not for drop-in replacement |
Compared with MAX809TRD3+T and TPS3808G15DBVR, MAX6833VXRD3+T offers optimal balance of 1.575V precision threshold, 210ms fixed timeout, ultra-low 7.5µA current, and zero-component push-pull interface - making it ideal for cost-sensitive, space-constrained 1.6V-system designs where deterministic reset timing is critical.
Availability
MAX6833VXRD3+T is available at Aetrix Electronics and suitable for battery-powered IoT sensors, wearable health monitors, low-voltage FPGA configuration, and industrial microcontroller modules requiring stable component supply with lead-free compliance and tape-and-reel delivery.
Supply support for MAX6833VXRD3+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 (now part of Analog Devices) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management solutions for industrial, communications, and consumer applications.
The MAX6832–MAX6840 family was designed specifically for ultra-low-voltage microprocessor reset supervision in portable and battery-critical systems operating from 1.2V to 1.8V supplies.
FAQ
What is the exact reset threshold voltage of the MAX6833VXRD3+T?
The MAX6833VXRD3+T has a factory-set reset threshold of 1.575V with ±2.5% accuracy over the full –40°C to +85°C temperature range. This value is fixed and non-adjustable, optimized for monitoring 1.6V nominal power rails in low-voltage digital systems.
Does the MAX6833VXRD3+T include a manual reset (MR) input?
No, the MAX6833VXRD3+T does not include a manual reset (MR) input. It is a dedicated VCC-monitoring supervisor with only three pins: GND, RESET (active-high push-pull), and VCC. MR functionality is present only in the 4-pin MAX6835/MAX6836/MAX6837 variants.
What is the function of the RESET pin on the MAX6833VXRD3+T?
The RESET pin on the MAX6833VXRD3+T is a push-pull active-high output. It drives HIGH when VCC falls below 1.575V or during power-up/brownout, and remains HIGH for 210ms after VCC rises above the threshold. It requires no external pullup and directly interfaces with µP reset inputs.
Can the MAX6833VXRD3+T operate reliably at VCC = 0.8V?
Yes, the MAX6833VXRD3+T guarantees reset assertion and valid RESET output down to VCC = 0.75V. At VCC = 0.8V, it fully meets VOH specifications (≥0.8×VCC at ISOURCE = 10µA), ensuring robust active-high reset signaling even during deep brownout conditions.
Is the MAX6833VXRD3+T RoHS-compliant and lead-free?
Yes, the "+T" suffix in MAX6833VXRD3+T explicitly denotes lead-free, RoHS-compliant packaging. Maxim Integrated manufactures this variant in tape-and-reel format with environmentally compliant materials, meeting IPC/JEDEC J-STD-609 Category 1 requirements.
MAX6833VXRD3+T 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 High
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6833VXRD3+T FAQ
1.How can I place an order for MAX6833VXRD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6833VXRD3+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 MAX6833VXRD3+T reliable?
The price and inventory of MAX6833VXRD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6833VXRD3+T is usually 5 days.
3.What payment methods are accepted for MAX6833VXRD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6833VXRD3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6833VXRD3+T?
MAX6833VXRD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6833VXRD3+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 MAX6833VXRD3+T?
For technical support, including MAX6833VXRD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6833VXRD3+T requirements.
6.How does Aetrix verify that MAX6833VXRD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6833VXRD3+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 MAX6833VXRD3+T meets industry standards.
7.What is the process for return or replacement of MAX6833VXRD3+T?
All MAX6833VXRD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6833VXRD3+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 MAX6833VXRD3+T part is unused and in its original packaging.
Return procedure for MAX6833VXRD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6833VXRD3+T 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…
