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Analog Devices Inc./Maxim Integrated MAX6741XKSDD3
- Part No.:
- MAX6741XKSDD3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MAX6741XKSDD3.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,111
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Product details
Overview
The MAX6741XKSDD3 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, 6µA supply current, and SC70-5 package - designed for power-supply sequencing in portable multivoltage systems.
For engineers reviewing the MAX6741XKSDD3 datasheet, MAX6741XKSDD3 pinout, MAX6741XKSDD3 application, or MAX6741XKSDD3 equivalent, key selection criteria include VCC1/VCC2 threshold pairing, POK1 timing for sequencing control, push-pull vs. open-drain RESET configuration, -40°C to +85°C operation, and compatibility with battery-powered I/O-core voltage sequencing.
Technical Context
The MAX6741XKSDD3 integrates two independent voltage monitors with precision factory-set thresholds and a dedicated POK1 output that asserts high only after VCC1 exceeds 2.925V for ≥37.5ms. Its reset logic combines VCC1 and VCC2 monitoring with automatic timeout restart on threshold violation.
It features a push-pull RESET output referenced to VCC1, eliminating external pullup requirements, and supports power-up sequencing by enabling downstream VCC2 regulation via POK1 - with no dependency on MR or VCC2 status for POK1 assertion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 2.925V ±2.5% (factory-trimmed; enables reliable I/O supply monitoring at 3.0V nominal rails) |
| VCC2 Threshold | 2.188V ±2.5% (factory-trimmed; matches common core supply voltages like 2.2V or 2.5V with margin) |
| Reset Timeout | 150ms min (D3 suffix; ensures µP reset hold time meets boot-loader initialization requirements) |
| POK1 Timeout | 37.5ms min (guarantees stable VCC1 before enabling VCC2 regulator, preventing brownout during sequencing) |
| Supply Current | 6µA max (enables >1-year battery life in always-on supervisory applications) |
| Operating Temp | -40°C to +85°C (supports industrial and extended-temperature portable equipment deployment) |
| Package | SC70-5 (1.6mm × 1.6mm footprint; saves PCB area in space-constrained handheld designs) |
Pinout & Package
MAX6741XKSDD3 uses the 5-pin SC70-5 package (1.6mm × 1.6mm × 0.9mm height) with gull-wing leads, rated for -40°C to +85°C operation and RoHS-compliant lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Push-pull active-low reset output | Drives µP reset pin directly without external pullup; sinks/source capability supports bidirectional µP interfaces |
| 2 - GND | Ground reference | Common return for all internal comparators, timers, and outputs; requires low-impedance PCB connection |
| 3 - VCC2 | Secondary supply monitor input | Monitors core voltage (e.g., 2.2V ASIC core); triggers RESET if falls below 2.188V |
| 4 - POK1 | Open-drain VCC1 Power-OK output | Signals VCC1 stability after 37.5ms; used to enable VCC2 regulator or disable downstream circuitry |
| 5 - VCC1 | Primary supply monitor input | Monitors I/O voltage (e.g., 3.0V rail); initiates POK1 assertion and RESET if drops below 2.925V |
Key Features
| Feature | Design Value |
|---|---|
| Dual fixed-voltage supervision | Simultaneous monitoring of VCC1 (2.925V) and VCC2 (2.188V) eliminates need for discrete supervisors or resistor dividers |
| VCC1 Power-OK (POK1) output | Enables precise power-up sequencing: VCC2 regulator enabled only after VCC1 stabilizes for ≥37.5ms |
| Push-pull RESET output | Eliminates external pullup resistor, reducing BOM count and layout complexity in µP reset paths |
| Ultra-low 6µA supply current | Extends battery runtime in portable devices where supervisor remains active during sleep modes |
| SC70-5 package | Minimizes PCB area vs. SOT23-5 (30% smaller footprint), critical for compact wearables and IoT sensors |
Applications
| Battery-Powered Sequencing | Multivoltage Processor Startup |
|---|---|
Use Scenario: Portable medical sensor with separate 3.0V I/O and 2.2V core supplies powered from a single Li-ion cell. IC Role / Device Role / Timing Role: MAX6741XKSDD3 monitors both rails and asserts POK1 only after VCC1 reaches 2.925V for 37.5ms, then enables DC/DC converter for VCC2. Use Value: Prevents core logic corruption by ensuring I/O supply is stable before core power is applied. | Use Scenario: Industrial controller using dual-rail FPGA requiring strict I/O-before-core power sequencing. IC Role / Device Role / Timing Role: MAX6741XKSDD3's POK1 output controls enable pin of VCC2 regulator; RESET holds FPGA in reset until both supplies exceed thresholds for 150ms. Use Value: Guarantees FPGA configuration integrity by enforcing manufacturer-specified startup order. |
| POS Terminal Power Management | GPS Module Voltage Supervision |
Use Scenario: Battery-backed point-of-sale terminal with 3.3V interface and 1.8V processor core. IC Role / Device Role / Timing Role: MAX6741XKSDD3 monitors VCC1 (3.3V) and VCC2 (1.8V) - but uses VCC2 = 2.188V threshold to cover 1.8V ±10% tolerance with margin. Use Value: Detects brownout on either rail before data corruption occurs, triggering controlled shutdown via RESET. | Use Scenario: Automotive-grade GPS receiver with 3.0V RF front-end and 1.2V baseband processor. IC Role / Device Role / Timing Role: MAX6741XKSDD3 configured with VCC1 = 2.925V (for 3.0V RF supply) and VCC2 = 2.188V (monitors 1.2V core indirectly via scaled feedback). Use Value: Provides early warning of supply degradation before loss of satellite lock or position calculation failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6744XKSDD3 | Push-pull RESET output (same); identical thresholds, timing, and POK1 function | No functional difference - MAX6744XKSDD3 is pin-compatible variant with same electrical specs | Select MAX6744XKSDD3 only if legacy design documentation references that part number |
| TPS3808G18DBVR | Single-supply supervisor (1.8V threshold only); no POK1 output; 350ms timeout; SOT23-5 package | Lacks dual-monitoring and sequencing capability; requires external circuitry for VCC2 enable control | Use only for single-rail systems where POK1 and VCC2 monitoring are unnecessary |
Compared with MAX6744XKSDD3, the MAX6741XKSDD3 offers identical functionality and pinout - differing only in part-numbering convention. Against TPS3808G18DBVR, MAX6741XKSDD3 provides integrated dual-rail supervision and hardware sequencing, reducing system-level component count and timing validation effort.
Availability
MAX6741XKSDD3 is available at Aetrix Electronics and suitable for portable medical devices, industrial controllers, POS terminals, and GPS modules requiring stable component supply with guaranteed long-term availability and full traceability.
Supply support for MAX6741XKSDD3 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, multivoltage microprocessor supervision in space-constrained portable and industrial systems - emphasizing sequencing control, ultra-low quiescent current, and factory-trimmed accuracy.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6741XKSDD3?
The MAX6741XKSDD3 has factory-trimmed reset thresholds of 2.925V for VCC1 and 2.188V for VCC2, as indicated by the "KS" suffix per Table 1 in the datasheet. These values are guaranteed over -40°C to +85°C with ±2.5% tolerance and require no external calibration. The MAX6741XKSDD3 uses these fixed thresholds to supervise dual-rail systems without resistor networks.
Does the MAX6741XKSDD3 provide power-supply sequencing capability?
Yes, the MAX6741XKSDD3 includes a dedicated open-drain VCC1 Power-OK (POK1) output that asserts high only after VCC1 exceeds 2.925V for a minimum of 37.5ms. This signal can directly enable a downstream VCC2 regulator, enforcing strict I/O-before-core or core-before-I/O sequencing. The MAX6741XKSDD3 implements this without external components or firmware intervention.
What is the reset timeout period for the MAX6741XKSDD3, and how is it selected?
The MAX6741XKSDD3 has a 150ms minimum reset timeout period, denoted by the "D3" suffix in its part number. This value is factory-programmed and unchangeable. The timeout begins after all monitored supplies (VCC1 and VCC2) rise above their thresholds and ensures the microprocessor remains held in reset long enough for clock stabilization and memory initialization.
Is the RESET output of the MAX6741XKSDD3 push-pull or open-drain?
According to the Selector Guide and Pin Description, the MAX6741XKSDD3 features a push-pull RESET output referenced to VCC1. This eliminates the need for an external pullup resistor and allows direct interfacing with µP reset pins requiring driven high/low states. The MAX6741XKSDD3 does not use open-drain RESET - that configuration applies to MAX6736/MAX6738 variants.
What package type and dimensions does the MAX6741XKSDD3 use?
The MAX6741XKSDD3 is supplied in a 5-pin SC70-5 package measuring 1.6mm × 1.6mm × 0.9mm with gull-wing leads. It is RoHS-compliant and available in lead-free form (suffix "+T"). This package provides a 30% smaller footprint than SOT23-5, making the MAX6741XKSDD3 ideal for ultra-compact PCB layouts in wearables and handheld devices.
MAX6741XKSDD3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 0.788V, 2.925V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 150ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
MAX6741XKSDD3 FAQ
1.How can I place an order for MAX6741XKSDD3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6741XKSDD3 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 MAX6741XKSDD3 reliable?
The price and inventory of MAX6741XKSDD3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6741XKSDD3 is usually 5 days.
3.What payment methods are accepted for MAX6741XKSDD3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6741XKSDD3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6741XKSDD3?
MAX6741XKSDD3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6741XKSDD3 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 MAX6741XKSDD3?
For technical support, including MAX6741XKSDD3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6741XKSDD3 requirements.
6.How does Aetrix verify that MAX6741XKSDD3 is sourced from the original manufacturer or authorized distributors?
All MAX6741XKSDD3 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 MAX6741XKSDD3 meets industry standards.
7.What is the process for return or replacement of MAX6741XKSDD3?
All MAX6741XKSDD3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6741XKSDD3, 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 MAX6741XKSDD3 part is unused and in its original packaging.
Return procedure for MAX6741XKSDD3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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