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Analog Devices Inc./Maxim Integrated MAX6464UR16+T
- Part No.:
- MAX6464UR16+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6464UR16+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,518
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Product details
Overview
MAX6464UR16+T from Maxim Integrated is a micropower supervisory circuit with active-low push-pull output, 1.6V threshold (VTH− = 1.600V typ), 5% internal hysteresis, and 150ms minimum reset timeout period. It monitors VCC supply voltage in battery-powered systems and asserts reset for ≥150ms after VCC recovers above VTH+, ensuring reliable µP initialization during power-up or brownout recovery.
For engineers reviewing the MAX6464UR16+T datasheet, MAX6464UR16+T pinout, MAX6464UR16+T application, or MAX6464UR16+T equivalent, key selection criteria include guaranteed 150ms reset timeout, ±2.5% threshold accuracy over −40°C to +125°C, ultra-low 1.0µA supply current at 3.6V, and SOT23-3 package compatibility with space-constrained portable designs.
Technical Context
The MAX6464UR16+T implements a precision bandgap reference and comparator with factory-trimmed resistor networks to set VTH− = 1.600V (±2.5% over temperature) and VTH+ = VTH− × 1.05 = 1.672V (typ). Its internal hysteresis prevents output chatter near threshold, and its reset timeout logic guarantees minimum 150ms assertion after VCC exceeds VTH+, independent of transient duration.
This device operates across VCC = 1.2V to 6.0V, draws only 1.0µA (typ) at 3.6V/25°C, and maintains full functionality from −40°C to +125°C. The push-pull active-low output drives directly into CMOS inputs without external pullup, sinking up to 9.0mA at VCC ≥ 4.5V while maintaining VOL ≤ 0.4V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Voltage Threshold (VTH−) | 1.600V (typ), ±2.5% over −40°C to +125°C - ensures accurate detection of 1.6V supply faults across industrial temperature range |
| Reset Timeout Period | 150ms (min), 260ms (typ), 430ms (max) - guarantees sufficient µP reset hold time for reliable boot sequence initiation |
| Supply Current (ICC) | 1.0µA (typ) at VCC = 3.6V, TA = 25°C - enables multi-year operation on coin-cell batteries in always-on monitoring |
| Output Type | Push-pull, active-low - eliminates need for external pullup resistor and supports direct interface to standard CMOS reset inputs |
| Hysteresis | 5% (VHYST = [(VTH+) − (VTH−)] / VTH− × 100%) - prevents oscillation during slow-rising/falling VCC near threshold |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive, industrial control, and high-reliability embedded applications |
| Package | SOT23-3 - 2.92mm × 1.3mm footprint compatible with automated PCB assembly and compact portable layouts |
Pinout & Package
SOT23-3 package: 2.92mm × 1.3mm × 1.02mm body, gull-wing leads, RoHS-compliant lead-free finish (+T suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 OUT | Active-low push-pull reset output | Drives low (≤0.4V at 9mA) when VCC < VTH−; returns high (≥0.8×VCC) only after VCC > VTH+ and 150ms timeout expires |
| 2 GND | Ground reference | Primary return path for internal bandgap, comparator, and output stage; must be connected to system ground plane |
| 3 VCC | Supply and monitored input | Single-pin dual function: powers internal circuitry and serves as the voltage being supervised; valid from 1.2V to 6.0V |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 1.0µA typical at 3.6V - extends battery life in always-on supervision without compromising response speed |
| Factory-set 1.6V threshold | VTH− = 1.600V ±2.5% over full temperature range - eliminates manual calibration and external resistor networks |
| Guaranteed 150ms reset timeout | Minimum assertion time after VCC recovery - satisfies ARM Cortex-M, PIC, and MSP430 reset timing requirements |
| Internal 5% hysteresis | Prevents false resets during noisy or slowly varying supply conditions - no external components required |
| Push-pull active-low output | Direct CMOS-compatible drive - removes dependency on board-level pullup resistors and reduces BOM count |
Applications
| Portable Medical Sensors | Industrial IoT Edge Nodes |
|---|---|
Use Scenario: Continuous glucose monitor powered by CR2032 coin cell, requiring fault detection and safe shutdown on battery depletion. IC Role / Device Role / Timing Role: Supervises VCC rail; asserts active-low reset to halt MCU and analog front-end when voltage drops below 1.6V. Use Value: 1.0µA supply current enables >5-year battery life; 150ms timeout ensures ADC and RF transceiver fully power down before brownout. |
Use Scenario: Wireless vibration sensor node deployed in factory machinery, operating unattended for months on primary lithium battery. IC Role / Device Role / Timing Role: Monitors main 3.3V supply derived from DC/DC converter; triggers hardware reset if input dips due to load transients or aging. Use Value: ±2.5% threshold accuracy over −40°C to +125°C guarantees consistent trip point across ambient extremes; SOT23-3 fits tight enclosure constraints. |
| Smart Wearable Power Sequencing | Automotive Body Control Module |
Use Scenario: Fitness tracker with multiple voltage rails (1.8V core, 3.3V I/O, 2.8V display), where sequencing must prevent latch-up during startup. IC Role / Device Role / Timing Role: Resets application processor until 1.6V auxiliary rail stabilizes, enabling controlled power-up sequence. Use Value: Push-pull output drives reset net directly; no external pullup saves PCB area and avoids parasitic leakage paths in humid environments. |
Use Scenario: Door module with LIN transceiver and microcontroller, exposed to load dump and cold-crank conditions in vehicle electrical system. IC Role / Device Role / Timing Role: Detects VCC collapse during cranking (e.g., 6V dip); holds reset asserted for ≥150ms after recovery to prevent erratic MCU behavior. Use Value: Immunity to short transients (<10µs at 0.1V overdrive) avoids spurious resets; −40°C to +125°C rating meets AEC-Q100 Grade 2 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar µP supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EB16DBVR | 1.6V threshold, 200ms min timeout, 0.5µA ICC, SOT23-3, but open-drain output requires external pullup | Lacks push-pull drive; unsuitable where reset net has high capacitive load or shared with other open-drain devices | Select MAX6464UR16+T when direct CMOS-compatible reset drive and minimal BOM are required |
| TPS3808G16DBVR | 1.6V threshold, 200ms min timeout, 2.8µA ICC, SOT23-6, push-pull active-low, but larger footprint and higher current | Requires PCB redesign for 6-pin layout; higher ICC reduces battery lifetime in ultra-low-power use cases | Select MAX6464UR16+T for space-constrained, coin-cell-powered designs needing lowest possible ICC and smallest package |
Compared with TLV803EB16DBVR and TPS3808G16DBVR, the MAX6464UR16+T delivers identical 1.6V supervision with lower ICC (1.0µA vs. 0.5µA/2.8µA), smaller SOT23-3 footprint, and push-pull drive-making it optimal for size- and energy-critical portable systems where external pullups are undesirable.
Availability
MAX6464UR16+T is available at Aetrix Electronics and suitable for portable medical devices, industrial IoT edge nodes, smart wearables, and automotive body control modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6464UR16+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, automotive, and medical applications.
The MAX6461–MAX6466 family was engineered specifically for ultra-low-power voltage supervision in battery-critical systems, emphasizing nanoscale current consumption, factory-trimmed accuracy, and robust transient immunity without external components.
FAQ
What is the exact voltage threshold and hysteresis of MAX6464UR16+T?
The MAX6464UR16+T has a nominal lower trip threshold (VTH−) of 1.600V at +25°C, with ±2.5% accuracy over −40°C to +125°C. Its upper trip threshold (VTH+) is VTH− × 1.05 = 1.672V (typ), yielding 5% hysteresis. Table 1a and 1b in the datasheet confirm VTH− = 1.560V (min) to 1.640V (max) across temperature, and VTH+ = 1.630V (min) to 1.714V (max).
Does MAX6464UR16+T require an external pullup resistor on the OUT pin?
No, MAX6464UR16+T does not require an external pullup resistor because it features a push-pull active-low output stage. The output actively drives low (≤0.4V at 9mA) when asserted and high (≥0.8×VCC) when released, eliminating reliance on external biasing components and simplifying PCB layout.
What is the minimum reset timeout period of MAX6464UR16+T, and how is it guaranteed?
The MAX6464UR16+T guarantees a minimum reset timeout period of 150ms after VCC rises above VTH+. This is an internal timer function-not dependent on external RC networks-and is specified as 150ms (min), 260ms (typ), and 430ms (max) over temperature. The timeout begins only after VCC exceeds VTH+ and ensures µP reset hold time compliance per industry standards.
Can MAX6464UR16+T operate down to 1.2V supply voltage?
Yes, MAX6464UR16+T is fully specified to operate with VCC as low as 1.2V, per Absolute Maximum Ratings and Electrical Characteristics tables. However, its output sinking capability degrades below 1.6V, and the 1.6V threshold is only guaranteed for detection above that level. For reliable supervision, VCC should remain ≥1.6V during normal operation.
Is MAX6464UR16+T pin-compatible with other members of the MAX6461–MAX6466 family in SOT23-3?
Yes, all MAX6461–MAX6466 variants in SOT23-3 (e.g., MAX6464URxx+T, MAX6465URxx+T) share identical pinout: Pin 1 = OUT, Pin 2 = GND, Pin 3 = VCC. This allows drop-in replacement across threshold and output-type variants without PCB changes, provided the application accepts the specific reset behavior (e.g., timeout vs. instantaneous).
MAX6464UR16+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 150ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
MAX6464UR16+T FAQ
1.How can I place an order for MAX6464UR16+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6464UR16+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 MAX6464UR16+T reliable?
The price and inventory of MAX6464UR16+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6464UR16+T is usually 5 days.
3.What payment methods are accepted for MAX6464UR16+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6464UR16+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6464UR16+T?
MAX6464UR16+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6464UR16+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 MAX6464UR16+T?
For technical support, including MAX6464UR16+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6464UR16+T requirements.
6.How does Aetrix verify that MAX6464UR16+T is sourced from the original manufacturer or authorized distributors?
All MAX6464UR16+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 MAX6464UR16+T meets industry standards.
7.What is the process for return or replacement of MAX6464UR16+T?
All MAX6464UR16+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6464UR16+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 MAX6464UR16+T part is unused and in its original packaging.
Return procedure for MAX6464UR16+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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