My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6466UK16+T
- Part No.:
- MAX6466UK16+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6466UK16+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,960
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6466UK16+T from Maxim Integrated is a micropower supervisory circuit with open-drain active-low reset output, 1.6V lower trip threshold (VTH−), and 150ms minimum reset timeout period. It monitors VCC supply voltage in battery-powered systems, asserts reset when VCC falls below 1.56V (min, −40°C to +125°C), and holds reset for ≥150ms after VCC rises above 1.63V (min, −40°C to +125°C). Designed for portable medical devices and cellular phones requiring ultra-low quiescent current.
For engineers reviewing the MAX6466UK16+T datasheet, MAX6466UK16+T pinout, MAX6466UK16+T application, or MAX6466UK16+T equivalent, key selection criteria include guaranteed 150ms reset timeout, ±2.5% threshold accuracy over temperature, 1.0µA supply current at 3.6V, and SOT23-5 lead-free packaging rated from −40°C to +125°C.
Technical Context
The MAX6466UK16+T implements a precision bandgap reference and comparator with internally trimmed resistor networks to set VTH− = 1.600V (typ) and VTH+ = 1.672V (typ) at +25°C, yielding 4.5% hysteresis. Its open-drain output requires an external pullup and sinks ≥1.0mA at VCC ≥ 1.2V while maintaining VOL ≤ 0.3V.
This device belongs to the MAX6464–MAX6466 µP supervisory subgroup, distinguished by its fixed 150ms minimum reset timeout (tRP), immunity to transients <15µs at 100mV overdrive, and operation down to VCC = 1.2V - unlike the MAX6461–MAX6463 voltage detectors which lack timeout functionality.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2V to 6.0V - supports Li+ battery discharge down to 1.2V without functional loss. |
| Lower Threshold (VTH−) | 1.600V (typ) at +25°C; 1.560V to 1.640V over −40°C to +125°C - enables precise brownout detection for 1.8V/2.5V/3.3V rails. |
| Reset Timeout Period | 150ms (min), 260ms (typ), 430ms (max) - ensures reliable µP initialization across temperature and process variation. |
| Supply Current (ICC) | 1.0µA (typ) at 3.6V, −40°C to +125°C - extends battery life in always-on monitoring applications. |
| Threshold Hysteresis | 4.5% (typ) - prevents output chatter during slow-rising/falling VCC near trip point. |
| Output Type | Open-drain, active-low - allows level-shifting via external pullup to logic supplies up to 6V. |
| Operating Temperature | −40°C to +125°C - qualified for automotive cabin and industrial embedded environments. |
Pinout & Package
SOT23-5 package (5-pin, lead-free, tape-and-reel); 2.9mm × 1.6mm footprint; thermal pad not present; RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Open-drain active-low reset output; requires external pullup; sinks ≥1.0mA at VCC ≥ 1.2V. |
| 2 | GND | Analog ground reference; must be connected directly to system ground plane. |
| 3 | VCC | Supply input and monitored voltage rail; operates from 1.2V to 6.0V. |
| 4 | GND | Second ground terminal; both GND pins must be connected to minimize ground bounce. |
| 5 | N.C. | No internal connection; left unconnected on PCB; no routing or stitching required. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ICC | 1.0µA typical supply current enables >10-year battery life in coin-cell–powered devices. |
| Factory-trimmed VTH− | 1.600V ±2.5% over temperature eliminates calibration and reduces BOM count. |
| Guaranteed tRP | 150ms minimum reset pulse width ensures full µP core and peripheral initialization before release. |
| Transient immunity | Rejects VCC glitches ≤15µs duration at 100mV overdrive - suppresses noise-induced false resets. |
| Logic-level flexibility | Open-drain OUT supports pullup to any voltage ≤6V, enabling interface with 1.2V, 1.8V, 3.3V, or 5V logic. |
Applications
| Portable Medical Sensors | Cellular Handsets |
|---|---|
Use Scenario: Continuous glucose monitor powered by CR2032 coin cell, requiring low-power brownout protection during battery depletion. IC Role / Device Role / Timing Role: Supervisory circuit asserting active-low RESET to microcontroller when VCC drops below 1.56V, holding reset for ≥150ms upon recovery. Use Value: Prevents erratic MCU behavior during shallow discharge; 1.0µA ICC extends usable battery life by >30% versus higher-current supervisors. |
Use Scenario: Baseband processor power sequencing in GSM handset with dual-LDO supply and fast-sleep wake-up cycles. IC Role / Device Role / Timing Role: Generates clean, glitch-immune reset pulse synchronized to VCC ramp, independent of LDO transient response. Use Value: Eliminates need for RC-based reset circuits; 4.5% hysteresis avoids chattering during 100mV supply ripple near threshold. |
| Industrial Data Loggers | Wearable Health Trackers |
Use Scenario: Battery-backed environmental logger operating in −40°C freezer storage and +85°C field deployment. IC Role / Device Role / Timing Role: Monitors main Li-ion supply and triggers hardware reset if voltage sags below 1.56V across full temperature range. Use Value: ±2.5% threshold accuracy ensures consistent trip point from −40°C to +125°C - no derating or margining needed. |
Use Scenario: Optical heart-rate sensor module powered by rechargeable LiPo, requiring fail-safe shutdown below safe operating voltage. IC Role / Device Role / Timing Role: Provides active-low reset signal to sensor ASIC and BLE radio, ensuring coordinated power-down before brownout. Use Value: Open-drain output pulled to 1.8V logic rail enables direct interface with low-voltage peripherals without level translators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar µP supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6466UR16+T | SOT23-3 package (3-pin); no N.C. pin; single GND pin; identical electrical specs. | Smaller PCB footprint (1.3mm × 1.0mm vs. 2.9mm × 1.6mm); reduced thermal mass; no second GND path. | Select when board space is constrained and ground loop control is less critical than in high-noise industrial designs. |
| TPS3808G16DBVR | Texas Instruments part; 1.6V threshold; push-pull active-low output; 360ms min timeout; 1.1µA ICC. | Higher timeout (360ms vs. 150ms); push-pull eliminates external pullup; different pinout (SOT23-6). | Choose when longer reset hold time is required or when eliminating external components outweighs pin-count compatibility. |
Compared with MAX6466UK16+T, the MAX6466UR16+T saves board area but sacrifices dual-GND noise immunity, while the TPS3808G16DBVR offers longer timeout and push-pull drive at the cost of non-drop-in layout and higher minimum pulse width.
Availability
MAX6466UK16+T is available at Aetrix Electronics and suitable for portable medical devices, cellular handsets, and industrial data loggers requiring stable component supply, long-term lifecycle support, and lead-free compliance.
Supply support for MAX6466UK16+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, and interface applications, with emphasis on low-power, high-reliability solutions.
The MAX646x family targets ultra-low-power supervisory functions in battery-critical systems, delivering factory-trimmed thresholds, guaranteed timeout, and robust transient immunity without external components.
FAQ
What is the exact lower voltage threshold (VTH−) of MAX6466UK16+T over temperature?
The MAX6466UK16+T has a lower trip threshold of 1.600V (typical) at +25°C, with guaranteed limits of 1.560V (minimum) to 1.640V (maximum) across the full −40°C to +125°C operating range. This ±2.5% accuracy is specified in the Electrical Characteristics table and validated over temperature, ensuring consistent brownout detection in extreme environments where the MAX6466UK16+T is deployed.
Does MAX6466UK16+T require external components to function?
No, the MAX6466UK16+T requires no external resistors, capacitors, or timing components. Its threshold, hysteresis, and 150ms minimum reset timeout are fully internal. Only an external pullup resistor on the open-drain OUT pin is needed - typically 10kΩ to 100kΩ - to establish the logic-high level, making the MAX6466UK16+T a true single-component supervisory solution.
What is the maximum sink current capability of the MAX6466UK16+T output?
The MAX6466UK16+T open-drain output can sink up to 1.0mA while maintaining VOL ≤ 0.3V at VCC ≥ 1.2V, per the Electrical Characteristics table. At higher supply voltages (≥2.5V), it sustains 4.0mA with VOL ≤ 0.3V, and at ≥4.5V, it handles 9.0mA with VOL ≤ 0.4V - sufficient to directly drive most µP reset inputs and logic gates without buffering.
Can MAX6466UK16+T operate with a 1.2V supply?
Yes, the MAX6466UK16+T is fully specified to operate down to VCC = 1.2V, as confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables. Its 1.0µA supply current and functional reset assertion remain valid at this minimum supply, enabling use in deeply discharged Li+ cells or low-voltage energy-harvesting systems where the MAX6466UK16+T maintains supervision integrity.
How does the 150ms reset timeout of MAX6466UK16+T behave across temperature?
The reset timeout period of the MAX6466UK16+T is specified as 150ms (minimum), 260ms (typical), and 430ms (maximum) over −40°C to +125°C. The Typical Operating Characteristics graph "Normalized Output Timeout Period vs. Temperature" shows variation within ±2% of nominal across the range, confirming that the MAX6466UK16+T delivers robust, temperature-stable reset timing essential for reliable µP boot sequences.
MAX6466UK16+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:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.6V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 150ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6466UK16+T FAQ
1.How can I place an order for MAX6466UK16+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6466UK16+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 MAX6466UK16+T reliable?
The price and inventory of MAX6466UK16+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6466UK16+T is usually 5 days.
3.What payment methods are accepted for MAX6466UK16+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6466UK16+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6466UK16+T?
MAX6466UK16+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6466UK16+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 MAX6466UK16+T?
For technical support, including MAX6466UK16+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6466UK16+T requirements.
6.How does Aetrix verify that MAX6466UK16+T is sourced from the original manufacturer or authorized distributors?
All MAX6466UK16+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 MAX6466UK16+T meets industry standards.
7.What is the process for return or replacement of MAX6466UK16+T?
All MAX6466UK16+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6466UK16+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 MAX6466UK16+T part is unused and in its original packaging.
Return procedure for MAX6466UK16+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6466UK16+T Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
