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Analog Devices Inc./Maxim Integrated MAX6741XKVHD3+
- Part No.:
- MAX6741XKVHD3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MAX6741XKVHD3+.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:925
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Product details
Overview
MAX6741XKVHD3+ from Maxim Integrated is a dual-voltage microprocessor supervisor IC with push-pull RESET and open-drain VCC1 Power-OK (POK1) output, factory-trimmed 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 MAX6741XKVHD3+ datasheet, MAX6741XKVHD3+ pinout, MAX6741XKVHD3+ application, or MAX6741XKVHD3+ equivalent, this page delivers verified electrical parameters, confirmed POK1 timing behavior, exact SC70-5 terminal mapping, and validated alternatives for dual-supply reset monitoring with sequencing support.
Technical Context
The MAX6741XKVHD3+ integrates two independent voltage monitors (VCC1 and VCC2) with precision factory-set thresholds and a dedicated open-drain POK1 output that asserts high only after VCC1 exceeds 2.925V for ≥37.5ms. Its reset logic combines VCC1/VCC2 fault detection with manual reset detect via the RESET pin's internal 50kΩ pullup to VCC1.
It operates across -40°C to +85°C, draws ≤10µA total supply current at 3.3V/2.5V, and guarantees valid RESET state down to VCC1 = 1.2V. The POK1 output enables controlled power-up sequencing (e.g., I/O supply before core), while the 150ms reset timeout ensures stable deassertion after supply stabilization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 2.925V ±2.5% (factory-trimmed; enables reliable I/O supply monitoring) |
| VCC2 Threshold | 2.188V ±2.5% (factory-trimmed; supports common core rail voltages) |
| Reset Timeout | 150ms min (D3 suffix; ensures µP initialization completes before release) |
| POK1 Timeout | 37.5ms min (guarantees VCC1 stability before enabling downstream supply) |
| Supply Current | 6µA typical (enables battery-powered operation >1 year on coin cell) |
| Operating Temp | -40°C to +85°C (qualified for industrial and portable equipment environments) |
| Package | SC70-5 (1.6mm × 1.6mm footprint; saves PCB area vs. SOT23) |
Pinout & Package
MAX6741XKVHD3+ uses the 5-pin SC70-5 package (1.6mm × 1.6mm × 0.9mm, 0.65mm pitch). 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 directly without external pullup; asserts low if VCC1 < 2.925V or VCC2 < 2.188V |
| 2 - GND | Ground reference | Common return path for all internal comparators and outputs |
| 3 - VCC2 | Secondary supply monitor input | Monitors core rail (e.g., 2.188V threshold); must be ≥1.0V for valid operation |
| 4 - POK1 | Open-drain VCC1 Power-OK output | Asserts high only after VCC1 ≥2.925V for ≥37.5ms; used to enable VCC2 regulator |
| 5 - VCC1 | Primary supply monitor input | Monitors I/O rail (e.g., 2.925V threshold); powers internal circuitry and POK1 pullup |
Key Features
| Feature | Design Value |
|---|---|
| Dual fixed-threshold monitoring | Simultaneous 2.925V (VCC1) and 2.188V (VCC2) detection with <0.5% hysteresis |
| VCC1 Power-OK (POK1) output | Enables precise power-up sequencing by gating VCC2 enable only after VCC1 stabilizes |
| 150ms reset timeout | Guarantees µP reset duration meets boot ROM requirements without external RC timing |
| 6µA quiescent current | Reduces battery drain in always-on portable devices (e.g., GPS, POS terminals) |
| SC70-5 package | Minimizes board space vs. SOT23-5 (30% smaller footprint) while maintaining hand-solderability |
Applications
| Power-Supply Sequencing | Battery-Powered Portable Devices |
|---|---|
Use Scenario: Dual-rail processor system requiring I/O supply (VCC1) to stabilize before enabling core supply (VCC2). IC Role / Device Role / Timing Role: MAX6741XKVHD3+ monitors VCC1 and asserts POK1 only after 37.5ms stable period, enabling VCC2 regulator via external MOSFET or EN pin. Use Value: Prevents core logic corruption during power-up by enforcing strict sequencing without discrete timers or FPGA logic. |
Use Scenario: Handheld medical sensor with coin-cell battery and low-power MCU. IC Role / Device Role / Timing Role: MAX6741XKVHD3+ supervises 3.0V I/O rail and 2.2V core rail, asserting RESET if either drops below threshold during brownout. Use Value: 6µA supply current extends battery life beyond 18 months; SC70-5 footprint fits compact PCB layout. |
| Notebook Subsystem Monitoring | Industrial Controller Power Integrity |
Use Scenario: Embedded controller managing USB-C PD negotiation and system power states. IC Role / Device Role / Timing Role: MAX6741XKVHD3+ provides independent reset assertion for main SoC and auxiliary PMIC rails using dual-threshold detection. Use Value: Factory-trimmed thresholds eliminate calibration overhead; 150ms timeout matches BIOS reset timing specs. |
Use Scenario: Programmable logic controller with isolated 24V DC input converted to 3.3V/1.8V rails. IC Role / Device Role / Timing Role: MAX6741XKVHD3+ detects undervoltage on both regulated outputs and triggers hardware reset before firmware corruption occurs. Use Value: -40°C to +85°C rating ensures reliability in uncontrolled cabinet environments; robust transient immunity prevents spurious resets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply reset monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6741XKVHD7+ | Same thresholds (2.925V/2.188V) but 1200ms reset timeout (D7 suffix) | Suitable for systems requiring longer reset hold time (e.g., FPGA configuration loading) | Select D7 version only if extended reset duration is explicitly required; D3 offers faster recovery |
| TPS3808G18DBVR | Single-supply supervisor (1.8V threshold), no POK output, 350ms timeout, SOT23-5 package | Lacks dual-monitoring and sequencing capability; requires external circuitry for VCC2 enable control | Use only for single-rail applications; not a functional substitute for MAX6741XKVHD3+ sequencing role |
Compared with MAX6741XKVHD3+, the D7 variant trades faster reset release for longer fault hold time, while TPS3808G18DBVR omits critical dual-supply and POK functionality - making MAX6741XKVHD3+ uniquely suited for sequenced multivoltage systems.
Availability
MAX6741XKVHD3+ is available at Aetrix Electronics and suitable for portable/battery-powered equipment, multivoltage systems, and notebook computers requiring stable component supply with guaranteed lead-free packaging and tape-and-reel delivery.
Supply support for MAX6741XKVHD3+ 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 interface applications.
The MAX6736–MAX6745 family was engineered specifically for low-power dual-/triple-voltage microprocessor supervision in space-constrained portable and industrial systems, emphasizing ultra-low current, factory-trimmed accuracy, and integrated sequencing features like POK1.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6741XKVHD3+?
The MAX6741XKVHD3+ 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 ±2.5% tolerance and enable precise monitoring of common I/O and core supply rails without external resistor networks.
Does the MAX6741XKVHD3+ provide a Power-OK output, and how is it used?
Yes, the MAX6741XKVHD3+ features an open-drain POK1 output (Pin 4) that goes high only after VCC1 exceeds 2.925V for ≥37.5ms. This signal is used to enable a downstream regulator (e.g., VCC2 DC/DC converter) ensuring strict power-up sequencing - a key requirement in dual-rail processors and ASICs.
What is the reset timeout period for the MAX6741XKVHD3+, and is it adjustable?
The MAX6741XKVHD3+ has a fixed 150ms minimum reset timeout period (D3 suffix), which begins after both VCC1 and VCC2 exceed their thresholds. This value is factory-programmed and non-adjustable; alternative timeout options (e.g., 1200ms) require different part numbers like MAX6741XKVHD7+.
Can the MAX6741XKVHD3+ monitor a negative voltage supply?
No, the MAX6741XKVHD3+ does not support direct negative voltage monitoring. Its VCC1 and VCC2 inputs require positive supplies ≥1.0V. For negative rail supervision, use the MAX6742/MAX6745 variants with PFI/PFO comparator inputs, which can interface to negative supplies via external resistor networks as shown in Figure 4 of the datasheet.
What package type and pin count does the MAX6741XKVHD3+ use?
The MAX6741XKVHD3+ uses a 5-pin SC70-5 package (1.6mm × 1.6mm × 0.9mm, 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 footprint reduces PCB area by ~30% versus standard SOT23-5 packages.
MAX6741XKVHD3+ 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:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 1.313V, 1.575V
- 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
MAX6741XKVHD3+ FAQ
1.How can I place an order for MAX6741XKVHD3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6741XKVHD3+ 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 MAX6741XKVHD3+ reliable?
The price and inventory of MAX6741XKVHD3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6741XKVHD3+ is usually 5 days.
3.What payment methods are accepted for MAX6741XKVHD3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6741XKVHD3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6741XKVHD3+?
MAX6741XKVHD3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6741XKVHD3+ 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 MAX6741XKVHD3+?
For technical support, including MAX6741XKVHD3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6741XKVHD3+ requirements.
6.How does Aetrix verify that MAX6741XKVHD3+ is sourced from the original manufacturer or authorized distributors?
All MAX6741XKVHD3+ 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 MAX6741XKVHD3+ meets industry standards.
7.What is the process for return or replacement of MAX6741XKVHD3+?
All MAX6741XKVHD3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6741XKVHD3+, 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 MAX6741XKVHD3+ part is unused and in its original packaging.
Return procedure for MAX6741XKVHD3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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