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Analog Devices Inc./Maxim Integrated MAX6336US16D3
- Part No.:
- MAX6336US16D3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
MAX6336US16D3.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT143-4
- Quantity:
- Payment:
- Shipping:
Inventory:929
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Product details
Overview
MAX6336US16D3 from Maxim Integrated is a push/pull, active-low microprocessor supervisory circuit designed for ultra-low-voltage power monitoring in 1.8V–3.3V digital systems. It asserts reset when VCC falls below 1.60V (±3% over temperature) or upon manual reset, with a guaranteed 100ms minimum timeout and valid RESET output down to VCC = 0.7V. Used in portable equipment and automotive controllers for brownout protection.
For engineers reviewing the MAX6336US16D3 datasheet, MAX6336US16D3 pinout, MAX6336US16D3 application, or MAX6336US16D3 equivalent, key selection criteria include factory-trimmed 1.6V reset threshold, 100ms reset timeout, SOT143 package compatibility, and guaranteed operation at 0.7V supply - critical for battery-powered low-voltage systems.
Technical Context
The MAX6336US16D3 implements a precision bandgap-based reset comparator with ±3% threshold tolerance over –40°C to +125°C, immune to fast VCC transients up to 24µs at 10mV overdrive. Its internal debounced manual-reset input (MR) features a 20kΩ pull-up and requires only a momentary switch to GND.
As a push/pull active-low reset IC, it drives RESET low during fault conditions and actively pulls high after timeout, eliminating external pull-up resistors. The device operates continuously from 0.7V to 5.5V supply, with supply current as low as 3.0µA at 1.8V and 25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.60V ±3% over –40°C to +125°C - ensures reliable brownout detection for 1.8V systems with margin |
| Reset Timeout Period | 100ms minimum - meets industrial watchdog timing requirements without external RC components |
| Supply Voltage Range | 0.7V to 5.5V - supports operation through deep battery discharge and multi-rail system monitoring |
| Supply Current | 3.0µA typical at 1.8V/25°C - enables >10-year battery life in always-on monitoring applications |
| RESET Output Type | Push/pull active-low - provides defined high/low states without external pull-up, reducing BOM count |
| MR Input Threshold | 0.5V max logic-low assertion - compatible with 1.8V GPIO and open-drain control signals |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive and industrial embedded environments |
Pinout & Package
MAX6336US16D3 is housed in a 4-pin SOT143 surface-mount package (3.0mm × 1.6mm × 1.1mm), optimized for space-constrained PCB layouts in portable and automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - GND | Ground reference | Return path for internal reset comparator and MR input; must be low-impedance connection to system ground plane |
| 2 - RESET | Active-low reset output | Push/pull driver that sinks current during reset and sources current post-timeout; directly interfaces µP reset pins without pull-up |
| 3 - MR | Manual reset input | Debounced logic input with 20kΩ internal pull-up; asserted low to force reset independent of VCC condition |
| 4 - VCC | Power supply input | Monitored supply rail; powers internal circuitry and enables reset assertion when voltage drops below 1.60V threshold |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 1.6V reset threshold | Eliminates external resistor networks and calibration steps - reduces design cycle time and test overhead |
| 100ms minimum reset timeout | Guarantees sufficient hold time for full µP initialization across voltage ramp rates and clock domains |
| 0.7V minimum operating voltage | Enables supervision during battery sag or cold-cranking events where supply dips below 1.0V |
| Internal MR debounce | Removes need for external RC filters or firmware debouncing - simplifies hardware and software design |
| Transient-immune reset comparator | Rejects VCC glitches ≤24µs at 10mV overdrive - prevents spurious resets in noisy automotive or switching-power environments |
Applications
| Battery-Powered Portable Devices | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Smart meter or handheld medical device powered by single-cell Li-ion (2.5V–4.2V), requiring reliable reset during low-battery shutdown. IC Role / Device Role / Timing Role: Monitors VCC and asserts active-low RESET to halt processor execution before undervoltage lockout corrupts memory or peripherals. Use Value: 1.60V threshold aligns with end-of-discharge voltage of Li-ion cells; 100ms timeout ensures safe state capture before power collapse. |
Use Scenario: Door module MCU subjected to load-dump transients and cold-cranking voltage sags (down to 0.6V). IC Role / Device Role / Timing Role: Provides fail-safe reset initiation when battery voltage drops below 1.60V, with immunity to <24µs noise spikes on VCC line. Use Value: Guaranteed operation at 0.7V allows continuous supervision during cranking; push/pull output ensures deterministic reset signaling to MCU. |
| Industrial PLC I/O Subsystems | Low-Voltage FPGA Configuration Circuits |
|
Use Scenario: Remote sensor node using 1.8V logic powered from isolated DC-DC converter with variable startup behavior. IC Role / Device Role / Timing Role: Generates clean, glitch-free reset pulse after VCC stabilizes above 1.60V, synchronized to power-good status. Use Value: Eliminates need for external RC timing network; 3.0µA quiescent current minimizes standby power draw in always-on nodes. |
Use Scenario: Configurable logic device powered from 1.8V supply, requiring precise power-on reset before configuration bitstream loading. IC Role / Device Role / Timing Role: Supervises 1.8V rail and delivers 100ms active-low pulse to FPGA PROG_B or INIT_B pin to guarantee proper configuration sequence. Use Value: Factory-trimmed 1.60V threshold provides 200mV margin above nominal 1.8V rail - prevents premature release during supply settling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6314US16D3-T | Same 1.6V threshold and 100ms timeout, but rated only to +85°C (vs. +125°C) | Limited to commercial/industrial ambient, not automotive under-hood | Select for cost-sensitive non-automotive designs where extended temperature is unnecessary |
| TLV803EB16DBZR | 1.6V threshold, 200ms timeout, 3.6µA ICC, but no manual reset input (MR) | Cannot support operator-initiated reset or test-mode forced reset | Choose when manual reset functionality is not required and longer timeout improves robustness |
Compared with MAX6336US16D3, MAX6314US16D3-T sacrifices automotive temperature range for lower cost, while TLV803EB16DBZR trades manual reset capability for higher timeout margin and TI's long-term supply assurance - both require layout review due to different pinouts and thermal footprints.
Availability
MAX6336US16D3 is available at Aetrix Electronics and suitable for battery-powered instrumentation, automotive body electronics, and industrial PLC subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6336US16D3 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, automotive, and computing applications.
The MAX633x family was designed specifically for ultra-low-voltage microprocessor supervision in space- and power-constrained systems, emphasizing guaranteed sub-1V operation and factory-trimmed precision thresholds.
FAQ
What is the exact reset threshold voltage for MAX6336US16D3?
The MAX6336US16D3 has a factory-trimmed reset threshold of 1.60V, with ±1.8% tolerance at +25°C and ±3% over the full –40°C to +125°C operating range. This value is confirmed in Table 1 of the official datasheet and applies specifically to the "US16" suffix variant of the MAX6336 series.
Does MAX6336US16D3 support manual reset functionality?
Yes, MAX6336US16D3 includes a debounced manual-reset input (MR) pin. A logic-low pulse ≥160µs on MR forces an immediate reset assertion, independent of VCC level. The internal 20kΩ pull-up resistor allows MR to be left unconnected if unused, and no external debounce circuitry is required.
What is the guaranteed minimum reset timeout period for MAX6336US16D3?
The MAX6336US16D3 guarantees a minimum reset timeout period of 100ms after VCC rises above the 1.60V threshold or after MR is deasserted. This value is fixed by the "D3" suffix and is fully specified over temperature, ensuring consistent reset hold time across all operating conditions.
Can MAX6336US16D3 operate reliably at VCC = 0.7V?
Yes, MAX6336US16D3 is guaranteed to maintain correct functional state - including valid RESET output assertion and deassertion - down to VCC = 0.7V. This is explicitly stated in the datasheet and distinguishes it from alternatives like MAX6337, which requires ≥1.0V for guaranteed operation.
Is MAX6336US16D3 pin-compatible with other Maxim reset ICs?
Yes, MAX6336US16D3 is pin-compatible with MAX811/MAX812 and MAX6314/MAX6315 in the same SOT143 package. Pin assignments (GND, RESET, MR, VCC) match exactly, enabling drop-in replacement in existing layouts where voltage threshold and timeout requirements align.
MAX6336US16D3 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:
- 1.6V
- 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
MAX6336US16D3 FAQ
1.How can I place an order for MAX6336US16D3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6336US16D3 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 MAX6336US16D3 reliable?
The price and inventory of MAX6336US16D3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6336US16D3 is usually 5 days.
3.What payment methods are accepted for MAX6336US16D3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6336US16D3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6336US16D3?
MAX6336US16D3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6336US16D3 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 MAX6336US16D3?
For technical support, including MAX6336US16D3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6336US16D3 requirements.
6.How does Aetrix verify that MAX6336US16D3 is sourced from the original manufacturer or authorized distributors?
All MAX6336US16D3 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 MAX6336US16D3 meets industry standards.
7.What is the process for return or replacement of MAX6336US16D3?
All MAX6336US16D3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6336US16D3, 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 MAX6336US16D3 part is unused and in its original packaging.
Return procedure for MAX6336US16D3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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