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Analog Devices Inc./Maxim Integrated MAX6310UK27D1-T
- Part No.:
- MAX6310UK27D1-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6310UK27D1-T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,406
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Product details
Overview
The MAX6310UK27D1-T from Maxim Integrated is a 5-pin SOT23 programmable supervisory circuit that monitors VCC and an external undervoltage input (RST IN) to assert a push/pull active-low RESET signal when either falls below its threshold. It features a factory-set 2.7V ±2.5% VCC reset threshold, 1ms minimum reset timeout, 8µA supply current, and guaranteed RESET validity down to VCC = 1V. It is used in multivoltage embedded systems requiring reliable power-on and brownout reset control.
For engineers reviewing the MAX6310UK27D1-T datasheet, MAX6310UK27D1-T pinout, MAX6310UK27D1-T application, or MAX6310UK27D1-T equivalent, this page delivers verified technical context, exact pin functions, real-world use scenarios, and validated alternative options - all grounded in Maxim's official documentation for the precise part number.
Technical Context
The MAX6310UK27D1-T implements dual-supply monitoring: internal factory-trimmed resistor divider sets the 2.7V VCC reset threshold, while an external resistor divider configures the RST IN undervoltage comparator referenced to 1.23V. Its push/pull RESET output actively drives low and high without external pull-up components.
It integrates a manual-reset input (MR) with internal 63.5kΩ pull-up, supports transient immunity up to 100V/µs on VCC, and guarantees reset assertion over full -0°C to +70°C temperature range. The 1ms minimum timeout (D1 suffix) is factory-programmed and stable across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Reset Threshold | 2.7V ±2.5% at -0°C to +70°C - precisely set at factory; enables reliable 3.3V system supervision with margin. |
| Reset Timeout Period | 1ms (minimum) - ensures sufficient µP initialization time after power stabilization. |
| Supply Current | 8µA typical at +25°C - enables battery-powered operation for >10 years in low-duty-cycle systems. |
| RESET Output Type | Push/pull active-low - eliminates need for external pull-up resistor; drives logic-low and logic-high directly. |
| RST IN Threshold Reference | 1.23V ±0.03V - allows precise external undervoltage monitoring of secondary rails (e.g., 1.8V, 2.5V) via resistor divider. |
| Operating Temperature | -0°C to +70°C - commercial-grade rating suitable for PC, industrial HMI, and consumer embedded applications. |
| VCC Validity Range | 1.0V to 5.5V - RESET remains valid down to 1V, supporting graceful shutdown detection before complete power loss. |
Pinout & Package
Package: 5-pin SOT23 (U5+1), RoHS-compliant lead-free tape-and-reel. Compact 2.9mm × 1.6mm footprint ideal for space-constrained PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Active-low push/pull reset output | Drives low to assert reset; actively pulls high to deassert - no external pull-up required. |
| 2 - GND | System ground reference | Return path for all internal comparators and output stage; must be low-impedance connection. |
| 3 - RST IN | Adjustable undervoltage reset input | Monitors external rail via resistor divider; asserts reset when voltage falls below 1.23V reference. |
| 4 - MR | Manual-reset input | Pulled high internally (63.5kΩ); logic-low pulse ≥1.5µs forces reset for full timeout period. |
| 5 - VCC | Main supply and monitored rail | Power source and primary supervision target; internal divider sets 2.7V reset threshold. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-programmed precision threshold | 2.7V VCC reset with ±2.5% tolerance over temperature - eliminates calibration and reduces BOM count. |
| Dual-rail supervision capability | Simultaneous monitoring of VCC (2.7V) and external rail via RST IN - supports 3.3V/1.8V or 5V/3.3V multivoltage systems. |
| Transient-immune architecture | Immunity to fast VCC transients ≤100V/µs - prevents spurious resets during switching noise or ESD events. |
| No external timing components | 1ms factory-set timeout - removes capacitor tolerance drift, temperature drift, and layout sensitivity. |
| Guaranteed RESET down to 1V VCC | Valid logic-level output even as main supply collapses - enables controlled firmware shutdown before brownout lockup. |
Applications
| Industrial PLC I/O Module | Medical Patient Monitor |
|---|---|
|
Use Scenario: Monitors 3.3V microcontroller supply and 2.5V analog sensor rail in a DIN-rail mounted controller exposed to 24V field wiring noise. IC Role / Device Role / Timing Role: Dual-input supervisory IC asserting active-low RESET to ARM Cortex-M4 when either rail dips below threshold during load switching or EFT bursts. Use Value: Prevents firmware corruption by ensuring reset occurs within 1ms of fault detection, with immunity to 100V/µs transients induced by relay coil flyback. |
Use Scenario: Ensures deterministic boot sequence in a portable vital-signs analyzer powered by Li-ion battery with dynamically scaled 1.8V/3.3V domains. IC Role / Device Role / Timing Role: Primary reset supervisor coordinating power-up sequencing between MCU, ADC, and display driver ICs. Use Value: 8µA quiescent current extends battery life; 1ms timeout guarantees bootloader readiness before clock tree initialization. |
| Automotive Infotainment Head Unit | Network Edge Gateway |
|
Use Scenario: Supervises 5V USB-C PD input and 3.3V SoC core rail in a thermally constrained dashboard unit operating from -0°C to +70°C ambient. IC Role / Device Role / Timing Role: VCC (2.7V threshold) monitors 3.3V domain; RST IN monitors 5V rail - dual-fault detection triggers hard reset. Use Value: Factory-trimmed thresholds eliminate production calibration; push/pull output drives automotive-grade reset input without pull-up resistor. |
Use Scenario: Provides fail-safe reset for a fanless edge gateway using quad-core ARM processor and dual Ethernet PHYs, powered from 12V DC-DC with 3.3V/1.1V outputs. IC Role / Device Role / Timing Role: Monitors 3.3V main logic rail (VCC) and 1.1V GPU supply (via RST IN) to prevent partial initialization during cold start. Use Value: MR pin enables remote reset via GPIO from management MCU; 1ms timeout aligns with Ethernet PHY startup requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-input supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6310UK27D3-T | Same 2.7V VCC threshold and RST IN input, but 140ms min timeout (D3) instead of 1ms (D1) | Suitable for systems requiring longer reset hold time during slow-ramping supplies or complex power sequencing | Select only if extended timeout is explicitly needed; D1 provides fastest release for responsive boot. |
| TLV809K27DBZR | Single-input (VDD only), 2.7V threshold, open-drain output, 200ms timeout, SOT23-3 package | Lacks RST IN and MR inputs; requires external pull-up; not suitable for dual-rail or manual-reset designs | Use only for cost-sensitive, single-rail applications where RST IN and MR are unused and board space is critical. |
Compared with MAX6310UK27D3-T and TLV809K27DBZR, the MAX6310UK27D1-T uniquely combines factory-set 2.7V VCC supervision, dedicated RST IN input, manual-reset capability, push/pull output, and minimal 1ms timeout - enabling compact, robust reset control in multivoltage embedded systems without design compromises.
Availability
The MAX6310UK27D1-T is available at Aetrix Electronics and suitable for industrial PLCs, medical patient monitors, automotive infotainment head units, network edge gateways, and portable instrumentation requiring stable component supply across commercial temperature range.
Supply support for MAX6310UK27D1-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, mixed-signal, and power-management ICs for demanding industrial, computing, and communications applications.
The MAX6305–MAX6313 family was engineered specifically for multivoltage microprocessor supervision in space- and power-constrained systems, emphasizing factory-programmed accuracy, transient immunity, and minimal external component count.
FAQ
What is the exact reset threshold voltage for MAX6310UK27D1-T?
The MAX6310UK27D1-T has a factory-programmed VCC reset threshold of 2.7V, with guaranteed tolerance of ±2.5% over the -0°C to +70°C operating temperature range. This value is trimmed during manufacturing and does not require external configuration. The RST IN input uses a fixed 1.23V internal reference for external rail monitoring.
Does MAX6310UK27D1-T support manual reset functionality?
Yes, the MAX6310UK27D1-T includes a dedicated MR (manual-reset) input on Pin 4. It features an internal 63.5kΩ pull-up resistor, accepts logic-low pulses ≥1.5µs, and holds RESET active for the full 1ms timeout period after MR returns high. No external components are required to implement manual reset.
What is the function of the RST IN pin on MAX6310UK27D1-T?
Pin 3 (RST IN) is an adjustable undervoltage reset input referenced to a precise 1.23V internal comparator. When used with an external resistor divider, it monitors a secondary supply rail (e.g., 1.8V or 2.5V) and asserts RESET if that rail falls below its programmed threshold - enabling true dual-rail supervision alongside the 2.7V VCC monitor.
Is MAX6310UK27D1-T compatible with 1.8V logic systems?
The MAX6310UK27D1-T operates from VCC = 1.0V to 5.5V and guarantees RESET output validity down to VCC = 1V. Its MR input accepts CMOS-compatible logic levels (VIH ≈ 0.7×VCC), making it fully functional in 1.8V systems. However, the internal 2.7V VCC threshold means it is intended for monitoring 3.3V or higher rails - not for direct 1.8V VCC supervision.
What package type and RoHS status does MAX6310UK27D1-T use?
The MAX6310UK27D1-T is supplied in a 5-pin SOT23 package (outline U5+1, land pattern 90-0174) with lead-free termination. The "-T" suffix denotes tape-and-reel packaging with RoHS-compliant finish; no leaded variant is implied by this ordering code.
MAX6310UK27D1-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:
- 2.7V, Adj
- Output:
- Push-Pull, Totem Pole
- 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
MAX6310UK27D1-T FAQ
1.How can I place an order for MAX6310UK27D1-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6310UK27D1-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 MAX6310UK27D1-T reliable?
The price and inventory of MAX6310UK27D1-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6310UK27D1-T is usually 5 days.
3.What payment methods are accepted for MAX6310UK27D1-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6310UK27D1-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6310UK27D1-T?
MAX6310UK27D1-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6310UK27D1-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 MAX6310UK27D1-T?
For technical support, including MAX6310UK27D1-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6310UK27D1-T requirements.
6.How does Aetrix verify that MAX6310UK27D1-T is sourced from the original manufacturer or authorized distributors?
All MAX6310UK27D1-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 MAX6310UK27D1-T meets industry standards.
7.What is the process for return or replacement of MAX6310UK27D1-T?
All MAX6310UK27D1-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6310UK27D1-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 MAX6310UK27D1-T part is unused and in its original packaging.
Return procedure for MAX6310UK27D1-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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