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Analog Devices Inc./Maxim Integrated MAX6741XKSVD3
- Part No.:
- MAX6741XKSVD3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MAX6741XKSVD3.pdf
- Description:
- IC SUPERVISOR MPU
- Quantity:
- Payment:
- Shipping:
Inventory:2,044
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Product details
Overview
The MAX6741XKSVD3 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 MAX6741XKSVD3 datasheet, MAX6741XKSVD3 pinout, MAX6741XKSVD3 application, or MAX6741XKSVD3 equivalent, key selection criteria include VCC1/VCC2 threshold pairing, POK1 timing for supply sequencing, SC70-5 package footprint, and compatibility with bidirectional µP reset interfaces.
Technical Context
The MAX6741XKSVD3 implements dual independent voltage monitoring with precision internal references (±1.5% over temperature) and a dedicated open-drain POK1 output that asserts high only after VCC1 exceeds its 2.925V threshold for 37.5–75.0ms. Its reset logic combines VCC1 and VCC2 fault detection with automatic timeout restart on transient re-entry.
It features a push-pull RESET output referenced to VCC1 (no external pullup required), supports manual reset via MR input with 150ms timeout, and operates across -40°C to +85°C with guaranteed functionality down to 1.2V on either supply rail.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 2.925V ±1.5% - sets primary I/O supply valid point for POK1 assertion and RESET deassertion |
| VCC2 Threshold | 2.188V ±1.5% - defines secondary core supply valid level; must exceed before RESET deasserts |
| Reset Timeout | 150ms min - ensures stable power-up before releasing µP reset, restartable on VCC dip |
| POK1 Timeout | 37.5–75.0ms - delays POK1 high assertion to prevent premature VCC2 enable during VCC1 ramp |
| Supply Current | 6µA typical - enables use in battery-powered systems with multi-year standby life |
| Operating Temp | -40°C to +85°C - qualified for industrial and portable equipment environments |
| Package | 5-pin SC70 - 2.0mm × 1.25mm footprint, compatible with high-density PCB layouts |
Pinout & Package
MAX6741XKSVD3 is housed in a 5-pin SC70-5 package (2.0mm × 1.25mm, 0.65mm pitch), optimized for space-constrained portable designs. Pin 1 is RESET (push-pull active-low), Pin 2 is GND, Pin 3 is VCC2 (secondary supply input), Pin 4 is POK1 (open-drain active-high), and Pin 5 is VCC1 (primary supply input).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Push-pull active-low reset output | Drives µP reset pin directly without external pullup; sinks/source up to 1.2mA |
| 2 - GND | Ground reference | Common return for all internal circuits and external decoupling capacitors |
| 3 - VCC2 | Secondary supply monitor input | Monitors core voltage (e.g., 2.188V threshold); RESET remains asserted until VCC2 > VTH2 |
| 4 - POK1 | Open-drain VCC1 Power-OK output | Signals VCC1 stability; used to enable VCC2 regulator after 37.5–75ms delay |
| 5 - VCC1 | Primary supply monitor input | Monitors I/O voltage (e.g., 2.925V threshold); initiates POK1 timing and RESET assertion |
Key Features
| Feature | Design Value |
|---|---|
| VCC1 Power-OK (POK1) output | Enables controlled power sequencing: VCC2 regulator enabled only after VCC1 stabilizes for ≥37.5ms |
| Dual factory-trimmed thresholds | 2.925V/2.188V pair eliminates external resistor networks and calibration overhead |
| 150ms reset timeout with restart | Prevents spurious resets during brief VCC dips while ensuring robust startup hold time |
| 6µA ultra-low quiescent current | Extends battery life in always-on portable devices (e.g., GPS, medical sensors) |
| SC70-5 package | Reduces board area by >50% vs. SOT23-5; compatible with standard pick-and-place equipment |
Applications
| Power-Supply Sequencing | Portable Medical Sensors |
|---|---|
Use Scenario: Dual-rail ASIC powering where I/O supply (VCC1) must stabilize before enabling core supply (VCC2). IC Role / Device Role / Timing Role: MAX6741XKSVD3 acts as a sequencer controller: POK1 output gates VCC2 enable signal after VCC1 reaches 2.925V for ≥37.5ms. Use Value: Prevents latch-up and initialization faults caused by out-of-spec VCC2 activation; eliminates need for discrete RC timing networks. |
Use Scenario: Battery-powered glucose monitor requiring multi-year shelf life and reliable cold-start behavior. IC Role / Device Role / Timing Role: MAX6741XKSVD3 supervises 3.0V I/O rail and 2.2V core rail, asserting RESET until both exceed thresholds for 150ms. Use Value: 6µA supply current extends battery life; dual-threshold monitoring ensures µP boots only when both rails are within spec. |
| Notebook Subsystem Monitoring | Industrial Handheld Terminals |
Use Scenario: Embedded controller managing USB interface (3.3V) and low-power MCU core (2.2V) in compact notebook add-in card. IC Role / Device Role / Timing Role: MAX6741XKSVD3 provides coordinated reset release and POK1-driven enable for auxiliary power domains. Use Value: SC70-5 footprint fits tight layout constraints; POK1 simplifies sequencing logic previously implemented with discrete timers. |
Use Scenario: Ruggedized handheld terminal operating in variable-temperature warehouses with Li-ion backup. IC Role / Device Role / Timing Role: MAX6741XKSVD3 monitors main 3.3V rail and 2.2V logic rail, maintaining RESET during brownouts and cold starts down to -40°C. Use Value: Guaranteed operation at -40°C ensures reliability in unheated environments; 150ms timeout prevents false resets from switching noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6744XKSVD3 | Push-pull RESET output (same); identical thresholds, timing, and package | No POK1 output - lacks power-sequencing capability | Select when only reset supervision is needed and sequencing is handled externally |
| TPS3808G18DBVR | Single-supply supervisor (1.8V threshold only); 350ms timeout; SOT23-5 package | Cannot monitor dual rails simultaneously; no POK output or VCC2 input | Select only for single-rail systems where cost is prioritized over dual-monitoring functionality |
Compared with MAX6744XKSVD3, the MAX6741XKSVD3 adds essential POK1 sequencing control; compared with TPS3808G18DBVR, it delivers true dual-rail monitoring and lower quiescent current, making it irreplaceable in compact, multi-rail portable designs.
Availability
MAX6741XKSVD3 is available at Aetrix Electronics and suitable for portable medical sensors, notebook subsystems, industrial handheld terminals, and battery-powered GPS equipment requiring stable component supply and long-term lifecycle support.
Supply support for MAX6741XKSVD3 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 consumer applications.
The MAX6736–MAX6745 family was designed specifically for ultra-low-power dual- and triple-voltage supervision in space-constrained portable electronics, emphasizing precision thresholds, sequencing support, and sub-10µA operation.
FAQ
What is the function of the POK1 output on the MAX6741XKSVD3?
The POK1 output on the MAX6741XKSVD3 is an open-drain active-high signal that asserts high only after VCC1 exceeds its 2.925V threshold for 37.5–75.0ms. It is used to control power sequencing-typically enabling a downstream VCC2 regulator-and is independent of VCC2 status or MR input. This ensures safe, ordered power-up in dual-rail systems.
Does the MAX6741XKSVD3 require external pullup resistors for its outputs?
The MAX6741XKSVD3 does not require an external pullup for its RESET output, as it uses a push-pull driver referenced to VCC1. However, its POK1 output is open-drain and requires an external pullup resistor (typically 10kΩ to VCC1) to generate a valid logic-high signal for enabling downstream regulators or logic.
What are the exact reset threshold voltages for the MAX6741XKSVD3?
The MAX6741XKSVD3 has factory-trimmed reset thresholds of 2.925V for VCC1 and 2.188V for VCC2, as indicated by the "SV" suffix in its part number. These values are specified over -40°C to +85°C with ±1.5% tolerance and define the minimum valid supply levels before RESET deassertion.
Can the MAX6741XKSVD3 monitor a 1.8V core supply?
No-the MAX6741XKSVD3's VCC2 threshold is fixed at 2.188V per its "SV" suffix and cannot be adjusted. For 1.8V core monitoring, a different variant such as MAX6741XKSWD3 (VCC2 = 1.665V) or MAX6741XKTWD3 (VCC2 = 1.665V, VCC1 = 3.075V) would be required. The MAX6741XKSVD3 is optimized for 2.2V-class core rails.
How does the MAX6741XKSVD3 handle brief voltage transients on VCC1 or VCC2?
The MAX6741XKSVD3 provides inherent transient immunity: it ignores falling VCC transients shorter than ~35µs (at 100mV overdrive), preventing spurious resets from noise or switching glitches. Adding a 0.1µF ceramic capacitor near the VCC1 pin further enhances immunity without requiring external filtering circuitry.
MAX6741XKSVD3 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:
- 1.575V, 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
MAX6741XKSVD3 FAQ
1.How can I place an order for MAX6741XKSVD3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6741XKSVD3 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 MAX6741XKSVD3 reliable?
The price and inventory of MAX6741XKSVD3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6741XKSVD3 is usually 5 days.
3.What payment methods are accepted for MAX6741XKSVD3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6741XKSVD3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6741XKSVD3?
MAX6741XKSVD3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6741XKSVD3 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 MAX6741XKSVD3?
For technical support, including MAX6741XKSVD3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6741XKSVD3 requirements.
6.How does Aetrix verify that MAX6741XKSVD3 is sourced from the original manufacturer or authorized distributors?
All MAX6741XKSVD3 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 MAX6741XKSVD3 meets industry standards.
7.What is the process for return or replacement of MAX6741XKSVD3?
All MAX6741XKSVD3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6741XKSVD3, 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 MAX6741XKSVD3 part is unused and in its original packaging.
Return procedure for MAX6741XKSVD3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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