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Analog Devices Inc./Maxim Integrated MAX6741XKVDD3
- Part No.:
- MAX6741XKVDD3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- -
- Datasheet:
-
MAX6741XKVDD3.pdf
- Description:
- IC SUPERVISOR MPU
- Quantity:
- Payment:
- Shipping:
Inventory:508
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Product details
Overview
MAX6741XKVDD3 from Maxim Integrated is a dual-voltage microprocessor supervisor IC with push-pull RESET and open-drain VCC1 Power-OK (POK1) output, factory-trimmed reset thresholds of 2.925V (VCC1) and 2.188V (VCC2), 150ms minimum reset timeout, and 6µA supply current. It monitors I/O and core supplies in portable systems requiring precise power sequencing.
For engineers reviewing the MAX6741XKVDD3 datasheet, MAX6741XKVDD3 pinout, MAX6741XKVDD3 application, or MAX6741XKVDD3 equivalent, this device delivers verified dual-supply monitoring with POK1-driven sequencing, low-quiescent-current operation, and SC70-5 packaging for space-constrained embedded designs.
Technical Context
The MAX6741XKVDD3 implements independent voltage comparators for VCC1 and VCC2, each referenced to precision internal bandgap-derived thresholds. Its POK1 output asserts high only after VCC1 exceeds 2.925V for ≥37.5ms, enabling controlled enablement of downstream regulators.
Reset assertion occurs when either VCC1 < 2.925V or VCC2 < 2.188V, with hysteresis of 0.5% and propagation delay ≤35µs. The push-pull RESET output drives high to ≥0.8×VCC1 at 800µA source current and low to ≤0.4V at 3.2mA sink current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 2.925V ±2.5% - factory-trimmed for reliable I/O supply monitoring at 3.0V nominal rails |
| VCC2 Threshold | 2.188V ±2.5% - factory-trimmed for core supply monitoring at 2.2V nominal rails |
| Reset Timeout | 150ms min - ensures µP remains held in reset long enough for stable power ramp-up |
| POK1 Timeout | 37.5ms min - guarantees VCC1 stability before enabling secondary supply via POK1 signal |
| Supply Current | 6µA typical - enables multi-year battery life in always-on portable equipment |
| Operating Temp | -40°C to +85°C - qualified for industrial and automotive cabin-temperature environments |
| Package | 5-pin SC70 - 2.0mm × 2.1mm footprint, compatible with automated SMT assembly |
Pinout & Package
MAX6741XKVDD3 is housed in a 5-pin SC70-5 package (2.0mm × 2.1mm × 0.95mm height), optimized for high-density PCB layouts and reflow-compatible assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Push-pull active-low reset output | Drives µP reset pin directly; no external pullup required; logic-high = ≥0.8×VCC1 |
| 2 - GND | Analog/digital ground reference | Common return for all internal comparators, timers, and output drivers |
| 3 - VCC2 | Secondary supply input (core voltage monitor) | Monitored against 2.188V threshold; valid operation requires VCC2 ≥1.0V |
| 4 - POK1 | Open-drain active-high VCC1 Power-OK output | Signals VCC1 stability after 37.5ms delay; requires external pullup for system sequencing control |
| 5 - VCC1 | Primary supply input (I/O voltage monitor) | Monitored against 2.925V threshold; powers internal circuitry and defines RESET/POK1 logic levels |
Key Features
| Feature | Design Value |
|---|---|
| Dual fixed-threshold supervision | Simultaneous 2.925V/2.188V monitoring eliminates need for two discrete supervisors |
| VCC1 Power-OK (POK1) output | Enables precise power-up sequencing by gating VCC2 regulator enable after VCC1 stabilization |
| 150ms reset timeout | Guarantees µP reset hold time meets boot-loader initialization requirements |
| 6µA quiescent current | Reduces standby power in battery-backed systems without compromising supervision accuracy |
| SC70-5 package | Minimizes board area vs. SOT23-5 while maintaining thermal performance up to +85°C |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Battery-powered glucose meters and pulse oximeters require reliable reset during cold-start and brownout conditions. IC Role / Device Role / Timing Role: MAX6741XKVDD3 supervises 3.0V I/O rail and 2.2V MCU core rail, asserting RESET until both stabilize and holding it for 150ms. Use Value: Prevents firmware corruption during Li-ion battery discharge below 3.0V while enabling >5-year shelf life via 6µA quiescent draw. |
Use Scenario: DIN-rail mounted PLC modules must sequence 24V-to-5V and 5V-to-3.3V DC/DC converters during hot-swap insertion. IC Role / Device Role / Timing Role: MAX6741XKVDD3 uses POK1 to enable the 3.3V core converter only after the 5V I/O rail reaches 2.925V for 37.5ms. Use Value: Eliminates latch-up risk in mixed-voltage FPGAs and ensures deterministic boot across temperature (-40°C to +85°C). |
| Automotive Infotainment Displays | POS Terminal Power Management |
Use Scenario: In-vehicle LCD displays experience wide input transients (load dump, cold crank); reset must ignore sub-100µs glitches. IC Role / Device Role / Timing Role: MAX6741XKVDD3 compares VCC1 (5V rail) and VCC2 (3.3V logic rail), rejecting transients per its 35µs propagation delay and hysteresis design. Use Value: Achieves >99.9% uptime in 12V automotive systems without false resets during engine cranking. |
Use Scenario: Retail point-of-sale terminals use dual-rail power (5V USB peripherals, 3.3V ARM processor) and require sequenced startup after AC power restoration. IC Role / Device Role / Timing Role: MAX6741XKVDD3 asserts RESET on brownout, then releases it only after both rails exceed thresholds for 150ms - ensuring full SoC initialization. Use Value: Guarantees EEPROM write integrity and prevents corrupted transaction logs during grid instability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6744XKVDD3 | Push-pull RESET (same), but no POK1 output; includes manual reset (MR) input | Lacks VCC1 sequencing capability; suited for systems needing operator-initiated reset instead of automatic sequencing | Select MAX6744XKVDD3 if MR functionality is required and POK1 is unused; otherwise MAX6741XKVDD3 is optimal for sequencing-critical designs |
| TPS3808G18DBVR | Single-supply supervisor (1.8V threshold only); 350ms timeout; 1.1µA IQ; SOT23-5 | Cannot monitor dual rails simultaneously; requires external circuitry for sequencing | Choose TPS3808G18DBVR only for cost-sensitive single-rail applications where size and ultra-low IQ outweigh sequencing needs |
Compared with MAX6744XKVDD3 and TPS3808G18DBVR, MAX6741XKVDD3 uniquely integrates dual-rail monitoring with a dedicated POK1 output, enabling robust, self-contained power sequencing without external components or timing compromises.
Availability
MAX6741XKVDD3 is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, automotive infotainment displays, and POS terminal power management requiring stable component supply and guaranteed long-term availability.
Supply support for MAX6741XKVDD3 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, communications, and consumer applications.
The MAX6736–MAX6745 family was designed specifically for low-power, space-constrained multivoltage systems requiring precise reset timing and supply sequencing - with MAX6741XKVDD3 targeting dual-rail applications needing POK1-driven enable control.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6741XKVDD3?
The MAX6741XKVDD3 has factory-trimmed reset thresholds of 2.925V for VCC1 and 2.188V for VCC2, with ±2.5% tolerance over -40°C to +85°C. These values are defined by the "SV" suffix in the part number and are confirmed in Table 1 of the official datasheet. The MAX6741XKVDD3 does not support adjustable thresholds - both are fixed and laser-trimmed during production.
Does the MAX6741XKVDD3 include a manual reset (MR) input?
No, the MAX6741XKVDD3 does not include a manual reset (MR) input. Per the Pin Description table and Selector Guide, MR is present only on MAX6736–MAX6739 and MAX6740/MAX6742/MAX6743/MAX6745 variants. The MAX6741XKVDD3 pinout consists solely of RESET, GND, VCC2, POK1, and VCC1 - with no MR terminal allocated.
What is the function and electrical behavior of the POK1 output on the MAX6741XKVDD3?
The POK1 output on the MAX6741XKVDD3 is an open-drain, active-high signal that goes high only after VCC1 exceeds 2.925V for a minimum of 37.5ms. It remains low during VCC1 ramp-up and brownout. Because it is open-drain, MAX6741XKVDD3 requires an external pullup resistor (typically 10kΩ to VCC1) to generate a valid logic-high level for controlling downstream regulators or enable inputs.
Can the MAX6741XKVDD3 monitor voltages below 1.0V on VCC2?
No, the MAX6741XKVDD3 cannot reliably monitor VCC2 below 1.0V. Electrical Characteristics specify a minimum VCC2 operating voltage of 1.0V (TA = 0°C to +85°C) and 1.2V (TA = -40°C to 0°C). While the VCC2 threshold is 2.188V, the device requires sufficient headroom for internal biasing - attempting to operate VCC2 < 1.0V risks undefined reset behavior and is outside guaranteed specifications for MAX6741XKVDD3.
What is the maximum sink current capability of the RESET output on the MAX6741XKVDD3?
The RESET output on the MAX6741XKVDD3 is push-pull and can sink up to 3.2mA while maintaining VOL ≤ 0.4V (at VCC1 ≥ 4.25V). This is specified under "RESET Output Low" in the Electrical Characteristics table. At lower VCC1 voltages (e.g., 3.3V), the sink capability remains functional but VOL increases slightly - always remaining ≤ 0.4V up to 3.2mA per the datasheet limits for MAX6741XKVDD3.
MAX6741XKVDD3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- -
- Number of Voltages Monitored:
- -
- Voltage - Threshold:
- -
- Output:
- -
- Reset:
- -
- Reset Timeout:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX6741XKVDD3 FAQ
1.How can I place an order for MAX6741XKVDD3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6741XKVDD3 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 MAX6741XKVDD3 reliable?
The price and inventory of MAX6741XKVDD3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6741XKVDD3 is usually 5 days.
3.What payment methods are accepted for MAX6741XKVDD3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6741XKVDD3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6741XKVDD3?
MAX6741XKVDD3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6741XKVDD3 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 MAX6741XKVDD3?
For technical support, including MAX6741XKVDD3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6741XKVDD3 requirements.
6.How does Aetrix verify that MAX6741XKVDD3 is sourced from the original manufacturer or authorized distributors?
All MAX6741XKVDD3 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 MAX6741XKVDD3 meets industry standards.
7.What is the process for return or replacement of MAX6741XKVDD3?
All MAX6741XKVDD3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6741XKVDD3, 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 MAX6741XKVDD3 part is unused and in its original packaging.
Return procedure for MAX6741XKVDD3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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