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Analog Devices Inc./Maxim Integrated MAX6307UK47D1-T
- Part No.:
- MAX6307UK47D1-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6307UK47D1-T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,598
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Product details
Overview
The MAX6307UK47D1-T from Maxim Integrated is a 5-pin SOT23 programmable supervisory circuit that monitors VCC (factory-set 4.7V reset threshold), an adjustable undervoltage input (RST IN), and an adjustable overvoltage input (OVRST IN) to assert an active-low push/pull RESET output. It features 8µA supply current, guaranteed RESET validity down to VCC = 1V, and a factory-programmed 1ms minimum reset timeout period. It is used in multivoltage embedded systems requiring robust power monitoring with transient immunity.
For engineers reviewing the MAX6307UK47D1-T datasheet, MAX6307UK47D1-T pinout, MAX6307UK47D1-T application, or MAX6307UK47D1-T equivalent, key selection considerations include its dual-input monitoring capability (VCC + RST IN + OVRST IN), push/pull RESET drive, 4.7V ±2.5% threshold tolerance over temperature, and compatibility with 3.3V/5V system rails in portable and industrial control designs.
Technical Context
The MAX6307UK47D1-T implements a triple-monitoring architecture: internal factory-trimmed resistor divider for VCC supervision at 4.7V nominal, external resistor-divider–based comparator for RST IN (undervoltage), and another for OVRST IN (overvoltage), all referenced to a 1.23V internal bandgap. Its push/pull RESET output sources/sinks up to 800µA/3.2mA and remains valid across VCC = 1.0V to 5.5V.
It integrates transient immunity via internal filtering and supports manual reset via MR pin with 63.5kΩ internal pull-up. The device operates across 0°C to +70°C, guarantees reset assertion during brownouts, and ignores fast VCC transients ≤1.4µs (at 4.7V threshold overdrive), per typical operating characteristics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Reset Threshold | 4.7V ±2.5% over -40°C to +85°C - ensures reliable reset activation when main supply drops below 4.58V or rises above 4.82V |
| Reset Timeout Period | 1ms (min) - provides sufficient hold time for microprocessor initialization after power stabilization |
| Supply Current | 8µA (typ) at +25°C - enables battery-powered operation with minimal quiescent drain |
| RESET Output Type | Active-low push/pull - eliminates external pull-up resistor and drives CMOS/TTL loads directly |
| Operating VCC Range | 1.0V to 5.5V - guarantees functional reset assertion even during deep brownout conditions |
| RST IN / OVRST IN Threshold | 1.23V ±0.03V reference - enables precise external voltage monitoring using resistor dividers |
| MR Input Logic Levels | VIL ≤ 0.3×VCC, VIH ≥ 0.7×VCC - compatible with 3.3V and 5V logic families without level shifting |
Pinout & Package
Package: 5-pin SOT23 (U5+1), 2.9mm × 1.6mm footprint, lead-free compliant (-T suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Active-low push/pull reset output | Drives µP reset pin directly; sinks 3.2mA or sources 800µA; valid down to VCC = 1V |
| 2 - GND | System ground reference | Return path for all internal comparators and output stage; must be low-impedance |
| 3 - RST IN | Adjustable undervoltage reset input | Comparator input referenced to 1.23V; asserts reset when external monitored voltage falls below programmed threshold |
| 4 - OVRST IN | Adjustable overvoltage reset input | Comparator input referenced to 1.23V; asserts reset when external monitored voltage exceeds programmed threshold |
| 5 - VCC | Main supply input and primary monitor | Powered rail also monitored via internal trimmed divider set to 4.7V nominal threshold |
Key Features
| Feature | Design Value |
|---|---|
| Triple independent monitoring | Simultaneous supervision of VCC (4.7V), external undervoltage (RST IN), and external overvoltage (OVRST IN) inputs |
| Factory-programmed timing | Fixed 1ms minimum reset timeout eliminates need for external RC timing components |
| Transient-immune design | Guaranteed immunity to VCC glitches ≤1.4µs (at 4.7V threshold overdrive), per Typical Operating Characteristics |
| No external components required | Operates fully functional with only VCC bypass capacitor; no pull-ups, timing resistors, or capacitors needed |
| Manual reset support | MR pin with internal 63.5kΩ pull-up enables momentary switch interface without external biasing |
Applications
| Industrial PLC I/O Modules | Medical Portable Monitors |
|---|---|
Use Scenario: Power sequencing and fault detection in DIN-rail mounted I/O modules with dual 24V/5V rails. IC Role / Device Role / Timing Role: Supervises 5V logic rail (VCC), 24V analog sensor supply (via RST IN divider), and detects overvoltage on 24V bus (via OVRST IN divider); asserts RESET for µC recovery. Use Value: Prevents firmware corruption during field-induced transients by asserting reset within 1ms of out-of-spec condition, leveraging triple-input monitoring. |
Use Scenario: Battery-backed vital signs monitor with 3.3V MCU and 5V display backlight, subject to ESD and load-dump events. IC Role / Device Role / Timing Role: Monitors main 3.3V rail (VCC), backup battery voltage (RST IN), and display supply overvoltage (OVRST IN); delivers clean, glitch-free reset pulse. Use Value: Ensures deterministic startup and safe shutdown using 8µA quiescent current and guaranteed RESET validity down to VCC = 1V during battery depletion. |
| Automotive Body Control Units | Network Edge Routers |
Use Scenario: Low-power BCM sub-module powered from vehicle 12V battery with local 5V/3.3V regulation. IC Role / Device Role / Timing Role: Supervises 5V domain (VCC), monitors battery voltage (RST IN), and detects alternator overvoltage spikes (OVRST IN); drives µC reset with push/pull output. Use Value: Eliminates external pull-up and withstands automotive load-dump transients due to built-in 1.4µs glitch rejection at 4.7V threshold. |
Use Scenario: Fanless enterprise router with dual 12V/3.3V supplies and thermal management circuitry. IC Role / Device Role / Timing Role: Monitors 3.3V core rail (VCC), 12V PoE interface supply (RST IN), and detects 12V overvoltage (OVRST IN); provides 1ms reset hold for FPGA configuration lock. Use Value: Enables single-chip supervision of three critical rails-reducing BOM count and PCB area versus discrete solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple-input supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6307UK47D3-T | Same 4.7V VCC threshold and pinout, but 140ms min reset timeout vs. 1ms | Suitable for systems requiring longer reset assertion, e.g., complex FPGA configuration | Select when extended reset hold time is needed; not drop-in for timing-critical 1ms use cases |
| TPS3808G33DBVR | Single-input (VDD only), 3.3V fixed threshold, open-drain output, 20ms timeout | Lacks RST IN/OVRST IN capability and push/pull drive; requires external pull-up | Use only for basic 3.3V monitoring where dual-input supervision and active drive are unnecessary |
Compared with MAX6307UK47D1-T, the MAX6307UK47D3-T offers identical monitoring architecture but longer timeout, while the TPS3808G33DBVR reduces functionality to single-rail supervision-making MAX6307UK47D1-T uniquely suited for compact, multi-rail systems needing precise 1ms reset timing and active drive.
Availability
The MAX6307UK47D1-T is available at Aetrix Electronics and suitable for industrial control systems, portable medical devices, automotive body electronics, and network infrastructure equipment requiring stable component supply and long-term production continuity.
Supply support for MAX6307UK47D1-T 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, with emphasis on high-reliability industrial and automotive markets.
The MAX6305–MAX6313 family was engineered specifically for multivoltage embedded systems requiring simultaneous monitoring of primary supply, auxiliary rails, and overvoltage conditions-enabling single-chip supervision without external timing or bias components.
FAQ
What is the exact reset threshold voltage of the MAX6307UK47D1-T?
The MAX6307UK47D1-T has a factory-programmed VCC reset threshold of 4.7V nominal, with ±2.5% tolerance over the full operating temperature range (-40°C to +85°C). This means the actual trip point falls between 4.58V and 4.82V under worst-case conditions, as specified in the Electrical Characteristics table. The threshold is set via an internal trimmed resistor divider and is not user-adjustable.
Does the MAX6307UK47D1-T support manual reset functionality?
Yes, the MAX6307UK47D1-T includes a dedicated MR (manual reset) input on pin 3. A logic-low pulse ≥1.5µs on this pin forces RESET assertion for the full timeout period (1ms minimum) after MR returns high. The pin features an internal 63.5kΩ pull-up resistor, allowing direct connection of a momentary switch to ground without external biasing.
Can the MAX6307UK47D1-T monitor both undervoltage and overvoltage on the same external rail?
Yes - the MAX6307UK47D1-T supports concurrent undervoltage and overvoltage monitoring on external rails using its two dedicated inputs: RST IN (pin 3) for undervoltage detection and OVRST IN (pin 4) for overvoltage detection. Each uses the same 1.23V internal reference, enabling precise threshold setting via external resistor dividers for both conditions on the same or separate supplies.
What is the supply current consumption of the MAX6307UK47D1-T?
The MAX6307UK47D1-T draws 8µA typical supply current at +25°C and VCC = 5.5V, with a maximum of 16µA over temperature and voltage extremes. This ultra-low quiescent current makes it suitable for battery-powered and energy-sensitive applications where standby power budget is constrained.
Is the RESET output of the MAX6307UK47D1-T open-drain or push/pull?
The RESET output of the MAX6307UK47D1-T is active-low push/pull (complementary), not open-drain. It can both sink up to 3.2mA and source up to 800µA, eliminating the need for an external pull-up resistor. This is confirmed in the Pin Description section and Electrical Characteristics table, distinguishing it from open-drain variants like the MAX6305 series.
MAX6307UK47D1-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 4.7V, Adj
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 1ms Minimum
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6307UK47D1-T FAQ
1.How can I place an order for MAX6307UK47D1-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6307UK47D1-T 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 MAX6307UK47D1-T reliable?
The price and inventory of MAX6307UK47D1-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6307UK47D1-T is usually 5 days.
3.What payment methods are accepted for MAX6307UK47D1-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6307UK47D1-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6307UK47D1-T?
MAX6307UK47D1-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6307UK47D1-T 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 MAX6307UK47D1-T?
For technical support, including MAX6307UK47D1-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6307UK47D1-T requirements.
6.How does Aetrix verify that MAX6307UK47D1-T is sourced from the original manufacturer or authorized distributors?
All MAX6307UK47D1-T 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 MAX6307UK47D1-T meets industry standards.
7.What is the process for return or replacement of MAX6307UK47D1-T?
All MAX6307UK47D1-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6307UK47D1-T, 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 MAX6307UK47D1-T part is unused and in its original packaging.
Return procedure for MAX6307UK47D1-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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