My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6464XR22+T
- Part No.:
- MAX6464XR22+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6464XR22+T.pdf
- Description:
- IC VOLT DETECTOR LP SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,455
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6464XR22+T from Maxim Integrated is a micropower supervisory circuit with active-high push-pull output, 2.2V lower trip threshold (VTH−), and minimum 150ms reset timeout period. It monitors VCC supply voltage in battery-powered systems, asserts reset when VCC drops below 2.2V, and holds reset active for ≥150ms after VCC recovers above 2.31V (VTH+ = VTH− × 1.05). Designed for portable medical devices and cellular phones requiring ultra-low quiescent current.
For engineers reviewing the MAX6464XR22+T datasheet, MAX6464XR22+T pinout, MAX6464XR22+T application, or MAX6464XR22+T equivalent, key selection criteria include guaranteed 150ms timeout, ±2.5% threshold accuracy over −40°C to +125°C, 1.0µA supply current at 3.6V, SC70-3 package compatibility, and immunity to sub-20µs VCC transients at 2.2V threshold overdrive.
Technical Context
The MAX6464XR22+T implements a precision bandgap reference and comparator with internally trimmed resistor networks to set its 2.2V nominal VTH− threshold. Its internal 5% hysteresis ensures stable output transition by defining VTH+ = 2.31V, preventing chatter near the trip point.
This device belongs to the MAX6464–MAX6466 subgroup optimized for µP reset supervision: it integrates a fixed minimum 150ms timeout after VCC recovery, unlike the MAX6461–MAX6463 voltage detectors which lack timeout. All variants operate from 1.2V to 6.0V VCC and are fully specified across −40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2V to 6.0V - supports operation down to brown-out conditions while monitoring Li+ battery or regulated 3.3V/5V rails. |
| VTH− Threshold (25°C) | 2.200V ±2.5% - precise detection of 2.2V system supply collapse, with min/max bounds of 2.145V/2.255V over full temperature range. |
| VTH+ Threshold (25°C) | 2.310V - ensures 5% hysteresis (0.11V) to prevent oscillation during slow-rising or noisy VCC transitions. |
| Reset Timeout Period | 150ms to 430ms - guarantees minimum 150ms reset assertion after VCC exceeds VTH+, enabling reliable µP initialization. |
| Supply Current (ICC) | 1.0µA typical at 3.6V - enables multi-year battery life in always-on monitoring applications such as portable ECG monitors. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive modules and industrial edge sensors without derating. |
| Output Type | Push-pull, active-high - drives logic inputs directly without external pull-up; VOH ≥ 0.8×VCC at 8mA source current. |
Pinout & Package
MAX6464XR22+T is housed in a 3-pin SC70-3 package (2.0mm × 2.1mm × 0.9mm), optimized for space-constrained portable designs. Pin 1 is OUT, Pin 2 is GND, and Pin 3 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Active-high push-pull reset output | Drives high when VCC < 2.2V; remains high ≥150ms after VCC > 2.31V; sinks up to 9mA, sources up to 8mA. |
| GND (Pin 2) | Ground reference | Return path for internal bandgap, comparator, and output stage; must be low-impedance connection to system ground plane. |
| VCC (Pin 3) | Supply input and monitored voltage | Single pin supplies device and provides the voltage being supervised; valid from 1.2V to 6.0V. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ICC | 1.0µA at 3.6V - reduces standby power in battery-backed real-time clocks and wearables. |
| Factory-trimmed VTH− | 2.200V ±2.5% over −40°C to +125°C - eliminates calibration overhead and external resistors. |
| Guaranteed timeout | Min 150ms reset pulse - ensures complete µP core and peripheral initialization before release. |
| Transient immunity | Rejects VCC glitches <20µs duration at 100mV overdrive - prevents false resets from switching noise. |
| SC70-3 footprint | 2.0mm × 2.1mm - enables placement on dense PCBs where SOT23-3 is too large or thermal mass is excessive. |
Applications
| Portable Medical Sensors | Cellular Phone Power Management |
|---|---|
Use Scenario: Continuous glucose monitor (CGM) with coin-cell battery and low-power MCU that must survive deep discharge cycles. IC Role / Device Role / Timing Role: Supervises 2.2V LDO output powering the sensor analog front-end and BLE radio; asserts active-high reset during brown-out. Use Value: 1.0µA ICC extends battery life beyond 12 months; 150ms timeout ensures ADC and RF startup sequencing completes before firmware execution. |
Use Scenario: Dual-battery smartphone with primary Li-ion and backup supercapacitor, requiring robust reset during battery switchover. IC Role / Device Role / Timing Role: Monitors main PMIC rail at 2.2V threshold; generates clean, glitch-free reset pulse to application processor during voltage sag. Use Value: ±2.5% threshold accuracy prevents premature reset during transient load spikes; 5% hysteresis avoids chatter during 100mV ripple. |
| Industrial Handheld Scanners | Wireless Sensor Node Gateways |
Use Scenario: Rugged barcode scanner powered by rechargeable NiMH pack with wide voltage swing (2.4V–3.0V). IC Role / Device Role / Timing Role: Detects end-of-discharge at 2.2V and triggers controlled shutdown via µP reset; operates across −30°C to +70°C ambient. Use Value: Full −40°C to +125°C specification ensures reliability in cold-storage warehouses; SC70-3 size fits within 12mm × 12mm module footprint. |
Use Scenario: LoRaWAN gateway deployed in outdoor enclosures with temperature extremes and intermittent solar charging. IC Role / Device Role / Timing Role: Supervises 3.3V system rail derived from buck converter; asserts reset if input drops below 2.2V due to solar panel shading or capacitor aging. Use Value: Immunity to short transients prevents false resets from ESD events on antenna lines; 150ms timeout accommodates slow-start DC/DC converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar µP supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6465XR22+T | Active-low push-pull output instead of active-high; identical threshold, timeout, and package. | Requires inverted logic interface; suitable when host µP reset pin is active-low. | Select MAX6465XR22+T only if system design mandates active-low reset assertion. |
| TPS3808G22DBVR | 2.2V threshold, 200ms timeout, 1.8µA ICC, SOT23-6 package; no hysteresis spec provided in datasheet. | Larger footprint and higher quiescent current; requires external capacitor for timeout adjustment. | Choose TPS3808G22DBVR only if longer timeout or TI ecosystem alignment outweighs size and power penalties. |
Compared with MAX6464XR22+T, MAX6465XR22+T offers identical timing and accuracy but inverted polarity, while TPS3808G22DBVR trades higher ICC and larger package for programmable delay-neither is pin-compatible, and both require layout changes.
Availability
MAX6464XR22+T is available at Aetrix Electronics and suitable for portable medical devices, cellular phone power management, and industrial handheld scanners requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6464XR22+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 MAX6461–MAX6466 family targets ultra-low-power supervisory functions in battery-critical systems, delivering factory-trimmed thresholds, integrated hysteresis, and guaranteed timeout-all in miniature SC70/SOT23 packages.
FAQ
What is the exact VTH− and VTH+ threshold voltage for MAX6464XR22+T?
The MAX6464XR22+T has a nominal lower trip threshold VTH− of 2.200V at +25°C, with guaranteed bounds of 2.145V (min) to 2.255V (max) across −40°C to +125°C. Its upper trip threshold VTH+ is 2.310V (2.200V × 1.05), with ±2.5% tolerance yielding 2.256V to 2.364V over temperature. These values are factory-trimmed and do not require external calibration.
Does MAX6464XR22+T provide a reset timeout, and how long is it?
Yes, MAX6464XR22+T provides a minimum reset timeout period of 150ms. After VCC rises above VTH+, the active-high OUT signal remains asserted for at least 150ms before deasserting, ensuring sufficient time for microprocessor core and peripherals to initialize. The actual timeout ranges from 150ms to 430ms depending on process and temperature, as specified in the Electrical Characteristics table.
What package type and pin configuration does MAX6464XR22+T use?
MAX6464XR22+T uses the SC70-3 package (2.0mm × 2.1mm × 0.9mm) with three pins: Pin 1 is OUT (active-high push-pull), Pin 2 is GND, and Pin 3 is VCC. This pinout matches all MAX6461–MAX6466 SC70-3 variants and is not compatible with SOT23-3 or SOT23-5 footprints due to different pad geometry and terminal spacing.
How much supply current does MAX6464XR22+T draw, and at what conditions?
MAX6464XR22+T draws 1.0µA typical supply current (ICC) at VCC = 3.6V, TA = −40°C to +125°C, with no load and output not asserted. At VCC = 5.0V and TA = +85°C to +125°C, ICC is 3.5µA max. This ultra-low ICC enables multi-year operation in coin-cell–powered devices like wireless sensors and portable diagnostics equipment.
Is MAX6464XR22+T compatible with lead-free assembly processes?
Yes, MAX6464XR22+T is supplied in lead-free packaging, indicated by the "+T" suffix per Maxim's ordering convention. It complies with RoHS and is qualified for standard Pb-free reflow profiles including JEDEC J-STD-020D, with peak temperatures up to +260°C. The SC70-3 package uses matte tin terminations and is rated for MSL 1 handling.
MAX6464XR22+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- 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:
- 150ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6464XR22+T FAQ
1.How can I place an order for MAX6464XR22+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6464XR22+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 MAX6464XR22+T reliable?
The price and inventory of MAX6464XR22+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6464XR22+T is usually 5 days.
3.What payment methods are accepted for MAX6464XR22+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6464XR22+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6464XR22+T?
MAX6464XR22+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6464XR22+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 MAX6464XR22+T?
For technical support, including MAX6464XR22+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6464XR22+T requirements.
6.How does Aetrix verify that MAX6464XR22+T is sourced from the original manufacturer or authorized distributors?
All MAX6464XR22+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 MAX6464XR22+T meets industry standards.
7.What is the process for return or replacement of MAX6464XR22+T?
All MAX6464XR22+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6464XR22+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 MAX6464XR22+T part is unused and in its original packaging.
Return procedure for MAX6464XR22+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6464XR22+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…
