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Analog Devices Inc./Maxim Integrated MAX6462XR44+T
- Part No.:
- MAX6462XR44+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6462XR44+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,002
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Product details
Overview
MAX6462XR44+T from Maxim Integrated is a precision ultra-low-power voltage detector IC designed for battery and power-supply monitoring in space-constrained portable systems. It features a 4.40V lower trip threshold (VTH−), 4.529V upper trip threshold (VTH+), ±2.5% threshold accuracy over −40°C to +125°C, 1.0µA supply current at 3.6V, and 17µs propagation delay. It is used in cellular phones and portable medical devices to ensure reliable power-on reset and brownout detection.
For engineers reviewing the MAX6462XR44+T datasheet, MAX6462XR44+T pinout, MAX6462XR44+T application, or MAX6462XR44+T equivalent, key selection considerations include its SC70-3 package, active-high push-pull output, 4.4V threshold with 5% hysteresis, and guaranteed operation across automotive-grade temperature range without external components.
Technical Context
The MAX6462XR44+T implements a precision bandgap reference and comparator-based detection architecture with internally trimmed resistor networks. Its dual-threshold behavior (VTH− = 4.40V, VTH+ = 4.529V) enables stable reset assertion during falling VCC and clean release during rising VCC, eliminating chatter near threshold.
It uses a fixed 5% internal hysteresis (VHYST = [(VTH+) − (VTH−)] / VTH− × 100%) and is optimized for low-noise, transient-immune operation - rejecting short-duration VCC glitches up to ~15µs when overdriven by 100mV below VTH−, as confirmed in Typical Operating Characteristics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2V to 6.0V - supports direct monitoring of Li+ battery packs, 3.3V/5V rails, and intermediate logic supplies |
| Threshold Voltage (VTH−) | 4.40V (typ) at +25°C, 4.290V to 4.510V over −40°C to +125°C - precise brownout detection for 4.5V nominal systems |
| Threshold Hysteresis | 5% - prevents output oscillation during slow-rising/falling supply transitions near trip point |
| Supply Current | 1.0µA (typ) at 3.6V, ≤3.5µA up to +125°C - enables multi-year battery life in always-on monitoring applications |
| Propagation Delay | 17µs (typ) - ensures fast response to supply faults while maintaining noise immunity |
| Output Type | Push-pull, active-high - drives CMOS/TTL loads directly without pull-up resistors or level-shifting |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive, industrial, and extended-range portable use |
Pinout & Package
MAX6462XR44+T is housed in a 3-pin SC70-3 package (2.0mm × 2.1mm × 0.95mm), optimized for high-density PCB layouts in portable electronics. 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 output | Asserts high when VCC falls below 4.40V; remains high until VCC rises above 4.529V - directly interfaces with µP RESET# inputs requiring active-high assertion |
| GND (Pin 2) | Ground reference | Return path for internal bandgap reference and comparator; must be connected to system ground plane for accurate threshold tracking |
| VCC (Pin 3) | Supply and monitored input | Single pin serves as both power source and voltage sense node - eliminates need for external divider or sensing circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 1.0µA typical - extends battery runtime in always-monitoring modes (e.g., sleep-state supervision) |
| Factory-trimmed threshold | 4.40V ±2.5% over full temperature range - eliminates calibration overhead and production test adjustments |
| No external components required | Integrated reference, comparator, and hysteresis - reduces BOM count, board area, and design validation effort |
| Transient immunity | Rejects <15µs VCC glitches at 100mV overdrive - prevents false resets in noisy power environments (e.g., RF-enabled handsets) |
| SC70-3 footprint compatibility | 2.0mm × 2.1mm outline - enables drop-in replacement for other SC70 voltage monitors without layout revision |
Applications
| Cellular Phone Power Supervision | Portable Medical Device Battery Monitoring |
|---|---|
Use Scenario: Monitoring Li-ion battery voltage during deep discharge to prevent unsafe operation below 3.0V cutoff, while asserting reset before critical brownout. IC Role / Device Role / Timing Role: Voltage detector providing precise 4.40V trip point to initiate controlled shutdown sequence prior to system instability. Use Value: Prevents data corruption and flash memory write errors by triggering reset 100mV before nominal 4.5V rail collapse, with 17µs response ensuring timely intervention. |
Use Scenario: Ensuring reliable power-on initialization and continuous supply integrity in handheld glucose meters and pulse oximeters. IC Role / Device Role / Timing Role: Supervisory circuit asserting active-high reset signal to microcontroller upon battery insertion or voltage recovery. Use Value: Guarantees deterministic boot sequence even after cold start or intermittent battery contact, leveraging ±2.5% threshold stability across body-temperature operating range. |
| Industrial Sensor Node Wake-Up Control | Automotive Telematics Module Supply Validation |
Use Scenario: Enabling ultra-low-power wake-up of wireless sensor nodes only when main supply exceeds safe operating threshold after energy harvesting recharge. IC Role / Device Role / Timing Role: Low-current voltage detector enabling conditional enablement of RF transceiver and ADC subsystems. Use Value: Reduces average system current by >95% versus always-on LDO supervision - 1.0µA ICC allows multi-year operation on coin-cell batteries. |
Use Scenario: Validating 5V DC-DC output stability before enabling CAN controller and GPS receiver in vehicle infotainment head units. IC Role / Device Role / Timing Role: Precision threshold detector interfacing directly with 3.3V µP reset input via level-compatible push-pull output. Use Value: Eliminates need for external level shifter or resistor divider, simplifying compliance with AEC-Q100 Grade 2 (−40°C to +105°C ambient) requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EB44DBZR | 4.4V threshold, SOT23-3, 0.5µA ICC, but only ±3% accuracy over −40°C to +85°C and no guaranteed 125°C operation | Limited to commercial-temperature consumer gear; lacks automotive/industrial qualification | Choose TLV803EB44DBZR only if cost sensitivity outweighs extended temperature reliability and accuracy needs |
| TPS3808G33DBVR | 3.3V fixed threshold, not 4.4V; adjustable versions require external resistor - no factory-trimmed 4.4V variant available | Requires redesign to accommodate different threshold; adds BOM and layout complexity | Select TPS3808G33DBVR only if system operates at 3.3V rail and threshold flexibility justifies added component count |
Compared with TLV803EB44DBZR and TPS3808G33DBVR, MAX6462XR44+T uniquely delivers 4.4V precision detection with ±2.5% accuracy across −40°C to +125°C and 1.0µA supply current in SC70-3 - making it the only drop-in solution for high-reliability 4.5V-system supervision without accuracy or temperature compromises.
Availability
MAX6462XR44+T is available at Aetrix Electronics and suitable for cellular phone power supervision, portable medical device battery monitoring, and industrial sensor node wake-up control requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6462XR44+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 management, sensing, and interface applications, with emphasis on high-reliability, low-power solutions.
The MAX6461–MAX6466 family was engineered specifically for ultra-low-power voltage monitoring in battery-critical portable and industrial systems - delivering factory-trimmed thresholds, integrated hysteresis, and minimal external component requirements.
FAQ
What is the exact voltage threshold of MAX6462XR44+T and how is it specified?
The MAX6462XR44+T has a nominal lower trip threshold (VTH−) of 4.40V at +25°C, with guaranteed range of 4.290V to 4.510V over −40°C to +125°C. Its upper trip threshold (VTH+) is 4.529V (typ), derived from VTH− × 1.05 due to internal 5% hysteresis. These values are factory-trimmed and documented in Tables 1a and 1b of the MAX6461–MAX6466 datasheet.
Does MAX6462XR44+T require external components to operate?
No, MAX6462XR44+T requires no external components. It integrates a precision bandgap reference, comparator, trimmed resistor network, and 5% hysteresis circuit. The single VCC pin serves as both power supply and monitored input, and the active-high push-pull output drives loads directly - eliminating pull-up resistors, dividers, or calibration circuitry.
What is the supply current consumption of MAX6462XR44+T across temperature?
MAX6462XR44+T draws 1.0µA typical at 3.6V and +25°C, ≤2.5µA at +85°C, and ≤3.5µA at +125°C (per Electrical Characteristics table). This ultra-low ICC enables multi-year operation on coin-cell batteries and makes it ideal for always-on supervision in portable equipment where power budget is constrained.
How does the hysteresis function in MAX6462XR44+T, and why is it important?
MAX6462XR44+T incorporates fixed 5% internal hysteresis: output asserts when VCC falls below VTH− (4.40V) and releases only when VCC rises above VTH+ (4.529V). This prevents output chatter during slow or noisy supply transitions near the threshold - a critical feature for reliable µP reset generation in real-world power environments.
Is MAX6462XR44+T compatible with lead-free assembly processes?
Yes, MAX6462XR44+T uses lead-free packaging, indicated by the "+T" suffix per Maxim's ordering convention. It is rated for reflow soldering per JEDEC J-STD-020, with peak temperature tolerance up to +260°C and qualifies for RoHS-compliant manufacturing without requiring special process modifications.
MAX6462XR44+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.4V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 14µs Typical Propagation Delay
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6462XR44+T FAQ
1.How can I place an order for MAX6462XR44+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6462XR44+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 MAX6462XR44+T reliable?
The price and inventory of MAX6462XR44+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6462XR44+T is usually 5 days.
3.What payment methods are accepted for MAX6462XR44+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6462XR44+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6462XR44+T?
MAX6462XR44+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6462XR44+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 MAX6462XR44+T?
For technical support, including MAX6462XR44+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6462XR44+T requirements.
6.How does Aetrix verify that MAX6462XR44+T is sourced from the original manufacturer or authorized distributors?
All MAX6462XR44+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 MAX6462XR44+T meets industry standards.
7.What is the process for return or replacement of MAX6462XR44+T?
All MAX6462XR44+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6462XR44+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 MAX6462XR44+T part is unused and in its original packaging.
Return procedure for MAX6462XR44+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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