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Analog Devices Inc./Maxim Integrated MAX6741XKSYD3
- Part No.:
- MAX6741XKSYD3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- -
- Datasheet:
-
MAX6741XKSYD3.pdf
- Description:
- IC SUPERVISOR MPU
- Quantity:
- Payment:
- Shipping:
Inventory:2,161
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Product details
Overview
The MAX6741XKSYD3 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 MAX6741XKSYD3 datasheet, MAX6741XKSYD3 pinout, MAX6741XKSYD3 application, or MAX6741XKSYD3 equivalent, this page delivers verified electrical parameters, SC70-5 package details, POK1 timing behavior, and real-world sequencing use cases - all confirmed from Maxim's official datasheet Rev 2 (12/05).
Technical Context
The MAX6741XKSYD3 implements dual independent voltage monitoring with precision internal references (±1.5% threshold accuracy over temperature), a dedicated POK1 output that asserts high only after VCC1 exceeds 2.925V for ≥37.5ms, and a push-pull RESET output referenced to VCC1. Its reset logic restarts the timeout timer on any threshold violation before completion.
It supports power-supply sequencing via POK1-driven enable control of downstream regulators (e.g., VCC2 DC/DC converter), includes MR debounce (37.5–75ms), and maintains valid RESET state while either VCC1 or VCC2 remains above 1.2V - enabling robust operation during brownout conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 2.925V ±1.5% - sets primary I/O supply monitoring point for reliable reset assertion at nominal 3.3V rail |
| VCC2 Threshold | 2.188V ±1.5% - targets core supply monitoring for 2.5V or 2.2V domains |
| Reset Timeout | 150ms min - ensures µP holds reset long enough for full power stabilization before boot |
| POK1 Timeout | 37.5ms min - guarantees VCC1 stability before enabling secondary supply (e.g., VCC2) |
| Supply Current | 6µA typical - enables multi-year battery life in portable equipment |
| Operating Temp | -40°C to +85°C - qualified for industrial and automotive cabin applications |
| Package | 5-pin SC70 - 2.0mm × 1.25mm footprint saves PCB area in space-constrained designs |
Pinout & Package
MAX6741XKSYD3 is housed in a 5-pin SC70-5 package (2.0mm × 1.25mm, 0.65mm pitch), optimized for high-density portable layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Push-pull active-low reset output | Drives µP reset pin directly without external pullup; sinks 3.2mA / sources 800µA |
| 2 - GND | Ground reference | Common return for all internal circuits and external decoupling |
| 3 - VCC2 | Secondary supply input | Monitors core voltage (e.g., 2.5V/1.8V); threshold = 2.188V |
| 4 - POK1 | Open-drain VCC1 Power-OK output | Active-high signal (requires external pullup) used to gate VCC2 regulator enable |
| 5 - VCC1 | Primary supply input | Monitors I/O voltage (e.g., 3.3V); threshold = 2.925V |
Key Features
| Feature | Design Value |
|---|---|
| Dual fixed-threshold supervision | Simultaneously monitors two independent rails with factory-trimmed 2.925V/2.188V thresholds - eliminates external resistor networks |
| VCC1 Power-OK (POK1) output | Enables precise power-up sequencing: VCC2 regulator enabled only after VCC1 stabilizes for ≥37.5ms |
| Low 6µA quiescent current | Reduces standby power in battery-powered systems - extends runtime without compromising supervision integrity |
| SC70-5 package | 2.0mm × 1.25mm footprint fits tight spaces in handheld devices, wearables, and IoT edge nodes |
| Reset timeout restart logic | Re-initializes 150ms timer on any threshold breach - prevents premature release during supply instability |
Applications
| Portable Power Management | Multi-Rail Sequencing |
|---|---|
Use Scenario: Battery-powered GPS tracker requiring stable boot after cold start and graceful shutdown on low battery. IC Role / Device Role / Timing Role: MAX6741XKSYD3 supervises 3.3V I/O and 2.2V core rails; POK1 enables core regulator only after I/O rail is valid. Use Value: Prevents core logic corruption by enforcing strict VCC1-before-VCC2 startup order and asserting reset during brownout. | Use Scenario: Industrial controller with separate 3.3V I/O and 1.8V FPGA core supplies needing controlled power-up/down. IC Role / Device Role / Timing Role: MAX6741XKSYD3 uses POK1 to delay VCC2 enable until VCC1 reaches 2.925V for ≥37.5ms; RESET holds FPGA in reset until both rails are stable. Use Value: Eliminates latch-up risk and ensures FPGA configuration completes only when both supplies meet spec. |
| POS Terminal Boot Integrity | Wearable Health Monitor |
Use Scenario: Point-of-sale terminal using ARM Cortex-M4 with dual-supply SoC and external memory. IC Role / Device Role / Timing Role: MAX6741XKSYD3 monitors VCC1 (3.3V interface bus) and VCC2 (1.2V core); RESET asserts if either drops below threshold during transaction processing. Use Value: Guarantees data integrity by forcing safe reboot before corrupted memory writes occur during voltage sag. | Use Scenario: Bluetooth-enabled ECG patch operating from coin-cell battery with aggressive power gating. IC Role / Device Role / Timing Role: MAX6741XKSYD3 supervises 3.0V analog front-end and 1.8V digital subsystem; 6µA current minimizes battery drain during sleep. Use Value: Enables >2-year shelf life while maintaining fail-safe reset response to supply faults during critical sensing intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6744XKSYD3 | Same thresholds (2.925V/2.188V), same 150ms timeout, but push-pull RESET instead of open-drain POK1 - no POK1 output | Lacks VCC1 Power-OK functionality; cannot drive external enable pins for sequencing | Select when only dual reset supervision is needed and sequencing is handled externally |
| TPS3808G18DBVR | Single-supply supervisor (1.8V threshold only); no dual monitoring, no POK output; 1.6µA supply current | Cannot replace dual-rail supervision; requires additional IC for second rail or sequencing logic | Choose only for single-rail systems where ultra-low current (<2µA) outweighs missing features |
Compared with MAX6744XKSYD3, the MAX6741XKSYD3 adds essential POK1 sequencing capability; versus TPS3808G18DBVR, it provides integrated dual-rail monitoring and sequencing - eliminating BOM cost and layout complexity of multiple discrete supervisors.
Availability
MAX6741XKSYD3 is available at Aetrix Electronics and suitable for portable electronics, multi-rail embedded controllers, and battery-powered medical devices requiring stable component supply and guaranteed long-term availability.
Supply support for MAX6741XKSYD3 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) designs precision analog and mixed-signal ICs for power management, sensing, and connectivity in demanding environments.
The MAX6736–MAX6745 family was engineered specifically for low-power dual/triple-supply supervision in space-constrained portable and industrial systems - prioritizing nanoscale packaging, sub-10µA current, and sequencing-ready outputs like POK1.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6741XKSYD3?
The MAX6741XKSYD3 has factory-trimmed reset thresholds of 2.925V for VCC1 and 2.188V for VCC2, with ±1.5% tolerance over -40°C to +85°C. These values are defined by the "SY" suffix per Maxim's Table 1 and are fully characterized - not adjustable. The MAX6741XKSYD3 does not include an RSTIN pin, so no external adjustment is possible.
Does the MAX6741XKSYD3 provide a Power-OK output, and how is it used?
Yes, the MAX6741XKSYD3 provides an open-drain VCC1 Power-OK (POK1) output on Pin 4. It remains low until VCC1 exceeds 2.925V for ≥37.5ms, then goes high (with external pullup). This signal is designed to enable downstream regulators - for example, using POK1 to control the EN pin of a VCC2 DC/DC converter ensures strict I/O-before-core sequencing.
What is the reset timeout period of the MAX6741XKSYD3, and is it configurable?
The MAX6741XKSYD3 has a fixed 150ms minimum reset timeout period, indicated by the "D3" suffix. This value is factory-set and non-adjustable. The timeout begins only after all monitored supplies (VCC1 and VCC2) exceed their thresholds and is restarted if either supply dips below threshold before completion - ensuring robust response to transient faults.
Can the MAX6741XKSYD3 monitor a negative voltage supply?
No, the MAX6741XKSYD3 does not support negative voltage monitoring. It is designed exclusively for positive supply supervision (VCC1: 1.0–5.5V, VCC2: 0.9–3.3V). While other members of the MAX6736–MAX6745 family (e.g., MAX6742/MAX6745) include a PFI/PFO comparator for negative rail monitoring via external resistor networks, the MAX6741XKSYD3 lacks PFI and PFO pins entirely.
What package type and pin count does the MAX6741XKSYD3 use?
The MAX6741XKSYD3 uses a 5-pin SC70-5 package (2.0mm × 1.25mm, 0.65mm pitch), with pinout: Pin 1 = RESET (push-pull), Pin 2 = GND, Pin 3 = VCC2, Pin 4 = POK1 (open-drain), Pin 5 = VCC1. This compact, surface-mount package is RoHS-compliant and qualified for reflow soldering per JEDEC J-STD-020.
MAX6741XKSYD3 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:
- -
MAX6741XKSYD3 FAQ
1.How can I place an order for MAX6741XKSYD3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6741XKSYD3 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 MAX6741XKSYD3 reliable?
The price and inventory of MAX6741XKSYD3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6741XKSYD3 is usually 5 days.
3.What payment methods are accepted for MAX6741XKSYD3?
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4.How is shipping managed for MAX6741XKSYD3?
MAX6741XKSYD3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6741XKSYD3 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 MAX6741XKSYD3?
For technical support, including MAX6741XKSYD3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6741XKSYD3 requirements.
6.How does Aetrix verify that MAX6741XKSYD3 is sourced from the original manufacturer or authorized distributors?
All MAX6741XKSYD3 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 MAX6741XKSYD3 meets industry standards.
7.What is the process for return or replacement of MAX6741XKSYD3?
All MAX6741XKSYD3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6741XKSYD3, 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 MAX6741XKSYD3 part is unused and in its original packaging.
Return procedure for MAX6741XKSYD3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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