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Analog Devices Inc./Maxim Integrated MAX6310UK30D2-T
- Part No.:
- MAX6310UK30D2-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6310UK30D2-T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MAX6310UK30D2-T from Maxim Integrated is a 5-pin SOT23 programmable supervisory IC that monitors VCC (factory-set 3.0V reset threshold), an adjustable undervoltage input (RST IN), and an adjustable overvoltage input (OVRST IN), asserting an active-low push/pull RESET output when any monitored supply violates its threshold. It features 20ms minimum reset timeout, 8µA supply current, and guaranteed RESET validity down to VCC = 1V. Used in multivoltage embedded systems for reliable power-on and brownout reset control.
For engineers reviewing the MAX6310UK30D2-T datasheet, MAX6310UK30D2-T pinout, MAX6310UK30D2-T application, or MAX6310UK30D2-T equivalent, key selection considerations include its dual-input monitoring capability (VCC + RST IN + OVRST IN), factory-trimmed 3.0V VCC threshold with ±2.5% tolerance over temperature, 20ms reset timeout, push/pull output drive, and immunity to fast transients on all inputs.
Technical Context
The MAX6310UK30D2-T implements a triple-monitor architecture: internal factory-trimmed resistor divider for VCC supervision at 3.0V nominal, external resistor-divider-configurable RST IN for secondary undervoltage detection, and OVRST IN for overvoltage fault response. All three comparators reference a stable 1.23V internal bandgap.
Its push/pull RESET output drives low (≤0.3V at 1.2mA) and high (≥0.8×VCC) without external components, and the internal timer ensures a minimum 20ms assertion after any fault clears. The device operates across VCC = (3.0V × 1.025) to 5.5V and guarantees functional reset assertion down to VCC = 1.0V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Reset Threshold | 3.0V nominal, ±2.5% over -40°C to +85°C - sets precise brownout detection point for main system rail |
| Reset Timeout Period | 20ms minimum - ensures µP reset pulse meets minimum duration requirements for reliable initialization |
| Supply Current | 8µA typical at +25°C - enables use in battery-powered and ultra-low-power portable systems |
| RESET Output Type | Active-low push/pull - eliminates need for external pull-up; sinks 1.2mA / sources 500µA at VCC ≥ 2.5V |
| Operating VCC Range | 3.075V to 5.5V - defined by VTH +2.5% lower bound and absolute max rating, ensuring valid operation during startup |
| RST IN / OVRST IN Threshold | 1.23V ±0.03V - stable internal reference enabling accurate external voltage divider programming |
| Transient Immunity | Immune to VCC transients < 20µs at 3.0V overdrive - prevents false resets from switching noise or ESD coupling |
Pinout & Package
MAX6310UK30D2-T is housed in a 5-pin SOT23 package (outline U5+1, land pattern 90-0174), optimized for space-constrained PCB layouts and compatible with standard reflow processes. RoHS-compliant lead-free version denoted by "+T" suffix.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Active-low push/pull reset output | Drives µP reset pin directly; no external pull-up required; valid logic levels guaranteed down to VCC = 1V |
| 2 - GND | System ground reference | Return path for all internal comparators and output driver; must be low-impedance connection to system ground plane |
| 3 - RST IN | Adjustable undervoltage reset input | Compares external divided voltage to 1.23V reference; asserts reset when input falls below threshold |
| 4 - OVRST IN | Adjustable overvoltage reset input | Compares external divided voltage to 1.23V reference; asserts reset when input exceeds threshold |
| 5 - VCC | Main supply input and monitored rail | Power source and primary monitored voltage; internal trimmed divider sets 3.0V reset point |
Key Features
| Feature | Design Value |
|---|---|
| Triple independent monitoring | Simultaneous supervision of VCC (3.0V), RST IN (user-programmable undervoltage), and OVRST IN (user-programmable overvoltage) |
| Factory-trimmed precision threshold | 3.0V VCC reset point with ±2.5% tolerance over full industrial temperature range (-40°C to +85°C) |
| No external components required | Self-contained reset generation including timer, reference, and push/pull driver - reduces BOM count and layout area |
| Guaranteed reset validity to 1V | RESET output remains within valid logic levels even as VCC drops to 1.0V, supporting graceful shutdown sequencing |
| Transient-immune comparators | All inputs reject fast transients ≤20µs (at 3.0V overdrive), eliminating false triggers from digital switching noise |
Applications
| Industrial PLC Power Sequencing | Medical Portable Monitor Battery Backup |
|---|---|
Use Scenario: A programmable logic controller uses separate 5V logic and 24V I/O rails; brownout on either rail must halt operation before data corruption occurs. IC Role / Device Role / Timing Role: MAX6310UK30D2-T monitors 5V rail directly via VCC pin and 24V rail via RST IN divider, asserting RESET if either falls below threshold. Use Value: Prevents firmware execution errors during partial power loss by guaranteeing synchronized reset across dual-supply domains. |
Use Scenario: A handheld patient monitor switches between AC adapter and Li-ion battery; voltage sag during switchover must not cause MCU lockup. IC Role / Device Role / Timing Role: MAX6310UK30D2-T monitors main 3.3V system rail (VCC) and battery voltage (RST IN), with OVRST IN unused or tied off. Use Value: Ensures continuous reset assertion during battery switchover transients, maintaining safe state until stable 3.3V is restored. |
| Automotive Body Control Module | Telecom Remote Radio Unit |
Use Scenario: A BCM experiences load-dump spikes on its 12V supply; overvoltage must trigger immediate shutdown to protect downstream 3.3V regulators. IC Role / Device Role / Timing Role: MAX6310UK30D2-T monitors 12V rail via OVRST IN (programmed for ~13.8V trip) while VCC powers from regulated 5V. Use Value: Provides dedicated overvoltage fault response independent of main supply monitoring, enabling fast, isolated protection action. |
Use Scenario: An outdoor RRH unit operates from -40°C to +85°C; its FPGA requires precise 20ms reset pulse after cold-start voltage ramp. IC Role / Device Role / Timing Role: MAX6310UK30D2-T supplies FPGA reset using factory-set 3.0V VCC threshold and D2 (20ms) timeout. Use Value: Delivers temperature-stable reset timing and threshold accuracy critical for FPGA configuration integrity in harsh environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6310EUK30D2-T | Extended temperature grade (-40°C to +85°C) vs. commercial (0°C to +70°C); identical electrical specs and pinout | Required for automotive, industrial, or outdoor deployments outside 0°C–70°C ambient range | Select MAX6310EUK30D2-T when operating temperature exceeds 70°C or drops below 0°C |
| TPS3808G30DBVR | Single-input (VDD only), 3.0V threshold, open-drain output, 20ms timeout; lower quiescent current (1.1µA) | Lacks RST IN/OVRST IN inputs; requires external pull-up; suitable only for single-rail monitoring | Choose TPS3808G30DBVR only when dual/overvoltage monitoring is unnecessary and ultra-low ICC is prioritized |
Compared with MAX6310UK30D2-T, the MAX6310EUK30D2-T offers identical functionality with extended thermal qualification, while the TPS3808G30DBVR provides lower power but sacrifices multi-input flexibility and push/pull drive - making it a functional alternative only in simplified single-rail designs.
Availability
MAX6310UK30D2-T is available at Aetrix Electronics and suitable for industrial PLCs, medical portable monitors, automotive body control modules, telecom remote radio units, and multivoltage embedded systems requiring stable component supply across production lifecycles.
Supply support for MAX6310UK30D2-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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, computing, and consumer applications.
The MAX6305–MAX6313 family was designed specifically for robust, multi-rail power supervision in space-constrained embedded systems, combining precision thresholds, transient immunity, and minimal external component count.
FAQ
What is the exact factory-set VCC reset threshold for MAX6310UK30D2-T?
The MAX6310UK30D2-T has a factory-trimmed VCC reset threshold of 3.0V nominal, with a guaranteed tolerance of ±2.5% over the operating temperature range of 0°C to +70°C. This value is confirmed in the Electrical Characteristics table under "Reset Threshold (VTH)" for MAX6310 devices, where VTH = 3.0V ±2.5% at TA = 0°C to +70°C. The "30" in the part number explicitly denotes the 3.0V threshold per Maxim's ordering convention.
Does MAX6310UK30D2-T support manual reset functionality?
No, the MAX6310UK30D2-T does not include a manual reset (MR) input. Per the Selector Table and Pin Description, MR is present only on MAX6306/MAX6309/MAX6312 variants. The MAX6310UK30D2-T belongs to the MAX6307/MAX6310/MAX6313 group, which features RST IN and OVRST IN pins but omits MR. Its reset assertion is fully automatic based on monitored voltage conditions.
What is the meaning of "D2" in MAX6310UK30D2-T?
The "D2" in MAX6310UK30D2-T specifies the factory-programmed reset timeout period: D2 corresponds to a minimum 20ms reset assertion time after all monitored voltages return to regulation. This is defined in the Ordering Information section, where D1 = 1ms min, D2 = 20ms min, D3 = 140ms min, and D4 = 1120ms min. The timeout is internally generated and requires no external components.
Can MAX6310UK30D2-T monitor a 12V supply?
Yes, MAX6310UK30D2-T can monitor a 12V supply using its OVRST IN pin. Since OVRST IN compares the applied voltage to a 1.23V internal reference, a resistor divider (e.g., R1 = 876kΩ, R2 = 124kΩ) scales 12V down to ~1.23V at the pin. The device will assert RESET if the divided voltage exceeds 1.23V - i.e., if the 12V rail rises above the programmed overvoltage threshold. VCC must still be powered from a compatible supply (3.075V–5.5V).
Is MAX6310UK30D2-T pin-compatible with other MAX63xx devices in SOT23-5?
MAX6310UK30D2-T shares the same SOT23-5 pinout (RESET, GND, RST IN, OVRST IN, VCC) with MAX6307 and MAX6313, but is not pin-compatible with MAX6306/MAX6309/MAX6312 (which substitute MR for OVRST IN) or MAX6305/MAX6308/MAX6311 (which use RST IN1/RST IN2). Pin compatibility is strictly limited to the MAX6307/MAX6310/MAX6313 variant group per the Pin Configurations diagram.
MAX6310UK30D2-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:
- 3V, Adj
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 20ms Minimum
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6310UK30D2-T FAQ
1.How can I place an order for MAX6310UK30D2-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6310UK30D2-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 MAX6310UK30D2-T reliable?
The price and inventory of MAX6310UK30D2-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6310UK30D2-T is usually 5 days.
3.What payment methods are accepted for MAX6310UK30D2-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6310UK30D2-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6310UK30D2-T?
MAX6310UK30D2-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6310UK30D2-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 MAX6310UK30D2-T?
For technical support, including MAX6310UK30D2-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6310UK30D2-T requirements.
6.How does Aetrix verify that MAX6310UK30D2-T is sourced from the original manufacturer or authorized distributors?
All MAX6310UK30D2-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 MAX6310UK30D2-T meets industry standards.
7.What is the process for return or replacement of MAX6310UK30D2-T?
All MAX6310UK30D2-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6310UK30D2-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 MAX6310UK30D2-T part is unused and in its original packaging.
Return procedure for MAX6310UK30D2-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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