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Analog Devices Inc./Maxim Integrated MAX6336US25D3+T
- Part No.:
- MAX6336US25D3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
MAX6336US25D3+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT143-4
- Quantity:
- Payment:
- Shipping:
Inventory:3,751
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Product details
Overview
MAX6336US25D3+T from Maxim Integrated is a push/pull, active-low microprocessor supervisory circuit designed for 1.8V–3.3V digital systems. It monitors VCC supply voltage with a factory-trimmed 2.5V reset threshold, asserts RESET for ≥100ms after power-up or manual reset, operates down to 0.7V VCC, and draws only 3.3µA typical supply current. It is used in portable equipment and critical µP power monitoring where ultra-low-voltage reliability is required.
For engineers reviewing the MAX6336US25D3+T datasheet, MAX6336US25D3+T pinout, MAX6336US25D3+T application, or MAX6336US25D3+T equivalent, key selection criteria include guaranteed RESET validity to 0.7V VCC, 100ms minimum reset timeout, SOT143 package compatibility, and push/pull output drive capability without external pull-up.
Technical Context
The MAX6336US25D3+T implements a precision bandgap-based reset comparator with ±1.8% (25°C) and ±3% (-40°C to +125°C) threshold accuracy at 2.50V nominal. Its internal debounced manual-reset input (MR) features a 20kΩ pull-up and 160µs minimum pulse width requirement at 2.6V VCC.
Reset assertion is triggered by VCC falling below 2.5V or MR low, with propagation delay of 24µs (10V/ms VCC fall rate). The push/pull RESET output delivers VOH ≥0.8VCC (ISOURCE = 200µA, VCC ≥1.8V) and VOL ≤0.4V (ISINK = 50µA, VCC ≥1.0V), ensuring robust logic-level compatibility across its operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.50V nominal, ±1.8% (25°C), ±3% (-40°C to +125°C); ensures precise brownout detection for 2.5V systems |
| Reset Timeout Period | 100ms minimum; guarantees sufficient processor initialization time after power recovery |
| Supply Voltage Range | 0.7V to 5.5V; supports operation during deep brownout and enables use in ultra-low-power wake-up circuits |
| Supply Current | 3.3µA typical at 2.5V, 25°C; minimizes battery drain in portable and energy-sensitive applications |
| Output Type | Active-low push/pull RESET; eliminates need for external pull-up resistor and drives CMOS inputs directly |
| Operating Temperature | -40°C to +125°C; qualified for automotive under-hood and industrial control environments |
| MR Input Threshold | 0.42V typical; compatible with standard logic-low signals and allows direct switch-to-GND connection |
Pinout & Package
MAX6336US25D3+T is housed in a lead-free 4-pin SOT143 package (JEDEC TO-253-4), measuring 2.9mm × 1.6mm × 1.1mm, with gull-wing leads optimized for automated assembly and space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - GND | Ground reference | Return path for all internal circuitry; must be connected to system ground plane for stable reset timing |
| 2 - RESET | Active-low push/pull reset output | Drives low during reset assertion; actively pulls high when deasserted-no external pull-up required |
| 3 - MR | Manual reset input | Logic-low assertion triggers reset; internally pulled up to VCC (20kΩ); accepts momentary switch to GND |
| 4 - VCC | Power supply input | Supplies internal regulator and comparator; valid from 0.7V to 5.5V; powers downstream µP reset logic |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low 0.7V operating supply | Enables reliable reset generation even during severe brownout conditions before µP loses functionality |
| Factory-trimmed 2.5V threshold | Eliminates external resistor networks and calibration; reduces BOM count and improves long-term stability |
| 100ms minimum reset timeout | Meets boot-time requirements of ARM Cortex-M and similar embedded processors without external timing components |
| Debounced manual reset input | Accepts mechanical switch inputs directly-no external RC filter or Schmitt trigger needed |
| Push/pull active-low output | Provides full rail-to-rail drive strength in both states, simplifying interface to µP reset pins with no pull-up loading |
Applications
| Battery-Powered IoT Sensors | Automotive Body Control Modules |
|---|---|
Use Scenario: Long-life sensor nodes powered by coin cells or energy harvesters experience gradual VCC decay during discharge cycles. IC Role / Device Role / Timing Role: Supervisory circuit asserting RESET when VCC drops below 2.5V threshold, preventing corrupted firmware execution during undervoltage. Use Value: 0.7V minimum operating voltage ensures reset remains valid until battery reaches end-of-life, extending usable runtime. |
Use Scenario: Power supply transients occur during load-dump or cold-crank events in 12V vehicle electrical systems. IC Role / Device Role / Timing Role: Monitors regulated 2.5V domain powering microcontrollers; ignores sub-24µs negative transients per comparator overdrive immunity. Use Value: Guaranteed -40°C to +125°C operation and 100ms reset hold-off prevent spurious resets during engine start-up. |
| Industrial PLC I/O Modules | Medical Portable Diagnostic Devices |
Use Scenario: Field-mounted controllers operate in electrically noisy environments with fluctuating 3.3V rails due to switching loads. IC Role / Device Role / Timing Role: Provides deterministic power-on reset and manual reset via front-panel button; debounced MR input rejects EMI-induced glitches. Use Value: Push/pull output drives reset pin of dual-core µP without signal degradation, supporting functional safety diagnostics. |
Use Scenario: Handheld ultrasound or glucose meters require fail-safe startup after battery insertion or low-power wake-up. IC Role / Device Role / Timing Role: Generates clean, 100ms-wide active-low reset pulse synchronized to VCC recovery, ensuring consistent firmware initialization. Use Value: 3.3µA quiescent current extends single-charge battery life beyond 5 years in standby mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX811TEUS+T | 2.93V reset threshold, 140ms timeout, same SOT143 package and push/pull output | Higher threshold suits 3.3V-only systems; not suitable for 2.5V rail monitoring | Select when system VCC nominal is ≥3.0V and tighter 2.93V trip point is required |
| TPS3808G125DBVR | 2.5V threshold, 200ms timeout, open-drain output, 1.8V–6.0V VCC range | Requires external pull-up; higher ICC (12µA) and larger SOT23-5 footprint | Choose if longer reset pulse or wider supply range outweighs added component and layout cost |
Compared with MAX6336US25D3+T, MAX811TEUS+T offers higher reset threshold and longer timeout but lacks 0.7V operation; TPS3808G125DBVR provides extended VCC range and longer timeout but increases BOM count and board area due to open-drain architecture and larger package.
Availability
MAX6336US25D3+T is available at Aetrix Electronics and suitable for battery-powered IoT sensors, automotive body control modules, and industrial PLC I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6336US25D3+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, sensing, connectivity, and security applications in industrial, automotive, and computing markets.
The MAX6335/MAX6336/MAX6337 family delivers ultra-low-voltage, low-power µP supervisory functions with factory-trimmed thresholds and minimal external components-targeting space- and energy-constrained embedded systems.
FAQ
What is the exact reset threshold voltage for MAX6336US25D3+T?
The MAX6336US25D3+T has a factory-trimmed nominal reset threshold of 2.50V, with tolerance of ±1.8% at +25°C and ±3% over the full -40°C to +125°C temperature range. This value is confirmed in Table 1 of the official datasheet and applies specifically to the "US25" suffix variant of the MAX6336US25D3+T.
Does MAX6336US25D3+T support operation below 1.0V VCC?
Yes, the MAX6336US25D3+T is fully specified to operate down to 0.7V VCC, and its RESET output remains valid (guaranteed logic state) at that voltage. This capability is explicitly documented in the Absolute Maximum Ratings and Electrical Characteristics tables, distinguishing it from alternatives like the MAX6337 which requires ≥1.0V for guaranteed operation.
What is the reset timeout period for MAX6336US25D3+T?
The MAX6336US25D3+T provides a nominal reset timeout period of 100ms, with a minimum guaranteed value of 100ms and maximum of 200ms over temperature. This is defined by the "D3" suffix in the part number and verified in the Electrical Characteristics table under parameter tRP for MAX633_US__D3-T variants.
Is MAX6336US25D3+T pin-compatible with other supervisory ICs?
Yes, the MAX6336US25D3+T is pin-compatible with the MAX811/MAX812 and MAX6314/MAX6315 families in the 4-pin SOT143 package. Pin assignments (GND, RESET, MR, VCC) match exactly, enabling drop-in replacement where voltage threshold and timeout requirements align-confirmed in the "Pin Compatible with" feature bullet and Pin Configuration diagram.
What is the supply current consumption of MAX6336US25D3+T at 2.5V?
The MAX6336US25D3+T draws 3.3µA typical supply current at VCC = 2.5V and +25°C, with a maximum of 7.0µA over the full -40°C to +125°C temperature range. This value is measured with RESET not asserted and is specified in the Electrical Characteristics table under "Supply Current (ICC)".
MAX6336US25D3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- TO-253-4, TO-253AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.5V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-143-4
MAX6336US25D3+T FAQ
1.How can I place an order for MAX6336US25D3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6336US25D3+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 MAX6336US25D3+T reliable?
The price and inventory of MAX6336US25D3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6336US25D3+T is usually 5 days.
3.What payment methods are accepted for MAX6336US25D3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6336US25D3+T transactions.
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4.How is shipping managed for MAX6336US25D3+T?
MAX6336US25D3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6336US25D3+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 MAX6336US25D3+T?
For technical support, including MAX6336US25D3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6336US25D3+T requirements.
6.How does Aetrix verify that MAX6336US25D3+T is sourced from the original manufacturer or authorized distributors?
All MAX6336US25D3+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 MAX6336US25D3+T meets industry standards.
7.What is the process for return or replacement of MAX6336US25D3+T?
All MAX6336US25D3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6336US25D3+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 MAX6336US25D3+T part is unused and in its original packaging.
Return procedure for MAX6336US25D3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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