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Analog Devices Inc./Maxim Integrated MAX6336US22D3
- Part No.:
- MAX6336US22D3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
MAX6336US22D3.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT143-4
- Quantity:
- Payment:
- Shipping:
Inventory:432
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Product details
Overview
MAX6336US22D3 from Maxim Integrated is a push/pull, active-low microprocessor supervisory circuit designed for 1.8V–3.3V digital systems. It monitors VCC with a factory-trimmed 2.20V reset threshold, asserts RESET for ≥100ms after power-up or manual reset, operates down to 0.7V supply, draws only 3.3µA at 2.5V, and features debounced manual-reset input - used in portable equipment and automotive controllers requiring reliable brownout detection.
For engineers reviewing the MAX6336US22D3 datasheet, MAX6336US22D3 pinout, MAX6336US22D3 application, or MAX6336US22D3 equivalent, key selection criteria include guaranteed RESET validity to VCC = 0.7V, SOT143 package compatibility with MAX811/MAX812, and precise 2.2V threshold tolerance (±1.8% at +25°C, ±3% over –40°C to +125°C).
Technical Context
The MAX6336US22D3 implements a precision bandgap-based voltage comparator with hysteresis to reject fast VCC transients up to 24µs at 10V/ms slew rate. Its internal 20kΩ MR pull-up enables direct connection of a momentary switch to GND without external debounce components.
Reset timeout is factory-programmed to 100ms minimum and remains stable across temperature (±10% variation from –40°C to +125°C). The push/pull output drives low with VOL ≤0.4V at ISINK = 50µA and high with VOH ≥0.8VCC at ISOURCE = 200µA (VCC ≥1.8V), ensuring robust interfacing with CMOS µP reset inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.20V ±1.8% (25°C), ±3% (–40°C to +125°C) - ensures accurate 2.2V supply monitoring for 2.5V systems |
| Reset Timeout Period | 100ms minimum - guarantees sufficient hold time for µP initialization sequences |
| Supply Voltage Range | 0.7V to 5.5V - supports ultra-low-voltage operation during battery brownout |
| Supply Current | 3.3µA typical at VCC = 2.5V - enables multi-year battery life in portable instrumentation |
| Output Type | Active-low push/pull - eliminates need for external pull-up resistor in most µP interfaces |
| MR Input Threshold | 0.5V max (VIL), 0.42V typical - compatible with TTL/CMOS logic levels and provides noise margin |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive and industrial embedded use |
Pinout & Package
MAX6336US22D3 is housed in a 4-pin SOT143 package (1.3mm × 2.1mm × 0.95mm), surface-mount, lead-free compatible, with gull-wing leads and thermal pad not connected internally.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - GND | Ground reference | Return path for all internal circuitry; must be low-impedance connection to system ground plane |
| 2 - RESET | Active-low push/pull reset output | Drives low during VCC undervoltage or MR assertion; holds low for ≥100ms after recovery; sinks 50µA with VOL ≤0.4V |
| 3 - MR | Manual reset input | Logic-low assertion triggers reset; internal 20kΩ pull-up allows NC or direct switch-to-GND connection; 160µs minimum pulse width required |
| 4 - VCC | Power supply input | Supplies internal regulator and comparator; valid from 0.7V to 5.5V; powers RESET output stage directly |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low operating voltage | Functional RESET assertion and deassertion guaranteed down to VCC = 0.7V - enables brownout detection before µP fails |
| Factory-trimmed reset threshold | 2.20V with ±1.8% room-temp accuracy - eliminates calibration overhead and external resistor dividers |
| Debounced manual reset | Internal filtering rejects <12ns glitches on MR - removes need for RC network or firmware debounce |
| Transient immunity | Rejects VCC dips ≤24µs at 10V/ms - prevents false resets from switching noise or ESD-induced supply sag |
| Pin-compatible upgrade path | Direct replacement for MAX811/MAX812 and MAX6314/MAX6315 - enables drop-in reliability enhancement in existing designs |
Applications
| Battery-Powered IoT Sensor Node | Automotive Body Control Module |
|---|---|
Use Scenario: A wireless sensor node powered by a single Li-ion cell experiences gradual voltage decay during discharge, dropping below 2.2V before shutdown. IC Role / Device Role / Timing Role: MAX6336US22D3 continuously monitors VCC and asserts RESET when voltage falls below 2.20V, halting µP execution before data corruption occurs. Use Value: Prevents invalid memory writes and state-machine lockup during brownout, extending usable battery range by enabling clean shutdown at precisely 2.2V. |
Use Scenario: A BCM supplies 2.5V to its microcontroller from a DC-DC converter subject to load-dump transients and cold-crank voltage sags. IC Role / Device Role / Timing Role: MAX6336US22D3 detects sags below 2.2V and holds RESET active for 100ms after recovery, ensuring µP reboots only after stable power is restored. Use Value: Eliminates spurious resets during engine cranking (where VCC may dip to 1.8V for 50ms), improving system robustness without external filtering. |
| Industrial Programmable Logic Controller | Medical Handheld Diagnostic Device |
Use Scenario: An industrial PLC uses a 2.5V FPGA configuration supply that must remain stable during hot-swap events and EMI exposure. IC Role / Device Role / Timing Role: MAX6336US22D3 supervises the 2.5V rail and asserts RESET if voltage drops below 2.20V for >24µs - rejecting fast noise while catching sustained faults. Use Value: Provides deterministic reset behavior immune to 10V/ms transients, reducing field failures caused by electromagnetic interference. |
Use Scenario: A handheld ultrasound device operates from a 3.3V LDO fed by a rechargeable battery; low-power sleep mode requires sub-5µA quiescent current. IC Role / Device Role / Timing Role: MAX6336US22D3 provides 2.2V supervision with only 3.3µA ICC at 2.5V, enabling long standby duration without compromising reset accuracy. Use Value: Delivers certified brownout protection while contributing <0.1% to total sleep-mode current budget - critical for FDA-cleared battery runtime claims. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX811SUR22D3-T | Same 2.2V threshold, 100ms timeout, SOT143, but higher 10µA ICC and no MR debouncing | Lacks internal MR debounce; requires external RC filter for noisy environments | Select MAX811SUR22D3-T only if legacy design already uses MAX811 footprint and MR noise is absent |
| TPS3808G22DBVR | 2.2V threshold, 200ms timeout, 1.4µA ICC, but requires external pull-up for open-drain RESET and has no MR input | No manual reset capability; open-drain output mandates external pull-up resistor | Choose TPS3808G22DBVR when ultra-low ICC (<2µA) is prioritized over MR flexibility and push/pull simplicity |
Compared with MAX811SUR22D3-T and TPS3808G22DBVR, the MAX6336US22D3 uniquely combines guaranteed 0.7V operation, integrated MR debounce, and push/pull output - making it optimal for space-constrained, battery-sensitive designs requiring both automatic and manual reset control without external components.
Availability
MAX6336US22D3 is available at Aetrix Electronics and suitable for battery-powered IoT sensor nodes, automotive body control modules, and industrial programmable logic controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6336US22D3 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, automotive, and medical applications.
The MAX6335/MAX6336/MAX6337 family delivers ultra-low-voltage, low-power µP reset supervision with factory-trimmed thresholds and integrated manual reset - targeting portable, automotive, and high-reliability embedded systems where supply integrity is mission-critical.
FAQ
What is the exact reset threshold voltage for MAX6336US22D3 and how tightly is it specified?
The MAX6336US22D3 has a factory-trimmed nominal reset threshold of 2.20V. At +25°C, this is guaranteed within ±1.8% (2.13V to 2.27V); over the full –40°C to +125°C operating range, tolerance widens to ±3% (2.13V to 2.27V). This precision eliminates need for external calibration and ensures consistent 2.2V supply monitoring in 2.5V systems.
Does MAX6336US22D3 support manual reset, and what interface requirements does it impose?
Yes, MAX6336US22D3 includes a debounced manual-reset input (MR) with an internal 20kΩ pull-up resistor. A logic-low pulse ≥160µs on MR asserts RESET; the pin accepts standard CMOS/TTL levels (VIL ≤0.5V). No external components are needed - simply connect a normally open switch between MR and GND for field service reset capability.
Can MAX6336US22D3 operate reliably when VCC drops below 1.0V, and what is its minimum functional supply voltage?
Yes, MAX6336US22D3 is fully specified down to VCC = 0.7V - the lowest operating voltage among comparable supervisors. It guarantees correct RESET assertion and deassertion behavior (including push/pull drive strength) at 0.7V, enabling early brownout detection before most µPs lose functionality, which is critical in battery-depleted scenarios.
What is the reset timeout period of MAX6336US22D3, and how stable is it over temperature?
The MAX6336US22D3 has a factory-programmed reset timeout period of 100ms minimum. Over the –40°C to +125°C range, the actual timeout varies by ±10%, remaining ≥90ms across temperature. This stability ensures µP reset hold time compliance even in extreme under-hood or industrial environments.
Is MAX6336US22D3 pin-compatible with older Maxim reset ICs, and which ones?
Yes, MAX6336US22D3 is pin-compatible with MAX811/MAX812 and MAX6314/MAX6315 in the same SOT143 package. Pin 1 (GND), Pin 2 (RESET), Pin 3 (MR), and Pin 4 (VCC) match identically - enabling direct replacement to upgrade reset accuracy, lower supply current, and add MR debounce without PCB changes.
MAX6336US22D3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- TO-253-4, TO-253AA
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.2V
- 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-23-4
MAX6336US22D3 FAQ
1.How can I place an order for MAX6336US22D3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6336US22D3 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 MAX6336US22D3 reliable?
The price and inventory of MAX6336US22D3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6336US22D3 is usually 5 days.
3.What payment methods are accepted for MAX6336US22D3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6336US22D3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6336US22D3?
MAX6336US22D3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6336US22D3 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 MAX6336US22D3?
For technical support, including MAX6336US22D3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6336US22D3 requirements.
6.How does Aetrix verify that MAX6336US22D3 is sourced from the original manufacturer or authorized distributors?
All MAX6336US22D3 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 MAX6336US22D3 meets industry standards.
7.What is the process for return or replacement of MAX6336US22D3?
All MAX6336US22D3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6336US22D3, 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 MAX6336US22D3 part is unused and in its original packaging.
Return procedure for MAX6336US22D3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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