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Analog Devices Inc./Maxim Integrated MAX6462UR16+T
- Part No.:
- MAX6462UR16+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6462UR16+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,921
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Product details
Overview
MAX6462UR16+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 1.6V threshold (VTH− = 1.600V typ), 1.0µA supply current at 3.6V, 17µs propagation delay, and internal 5% hysteresis (VTH+ = 1.672V typ). It operates over −40°C to +125°C in SOT23-3 package and asserts active-high push-pull output when VCC falls below threshold.
For engineers reviewing the MAX6462UR16+T datasheet, MAX6462UR16+T pinout, MAX6462UR16+T application, or MAX6462UR16+T equivalent, key selection criteria include its fixed 1.6V detection point, guaranteed −40°C to +125°C operation, sub-2µA quiescent current, push-pull active-high output stage, and compatibility with Li-ion, coin-cell, and low-voltage microcontroller supply rails.
Technical Context
The MAX6462UR16+T implements a precision bandgap reference and comparator-based detection architecture with factory-trimmed resistor networks setting the 1.6V lower trip point (VTH−) and 1.672V upper trip point (VTH+). Its internal hysteresis prevents output chatter during slow-rising or noisy supply transitions.
This device belongs to the MAX6461–MAX6466 family of voltage supervisors optimized for single-supply monitoring without external components. Unlike reset supervisors (e.g., MAX6464–MAX6466), it lacks a built-in timeout period and responds immediately to threshold crossing with 17µs typical propagation delay on VCC fall.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2V to 6.0V - supports direct monitoring of Li⁺ (2.7–4.2V), coin cells (1.5–3.0V), and logic rails down to 1.2V. |
| Threshold Voltage (VTH−) | 1.600V (typ), ±2.5% over −40°C to +125°C - ensures reliable brown-out detection for 1.8V/2.5V system supplies. |
| Supply Current (ICC) | 1.0µA (typ) at 3.6V, −40°C to +125°C - enables multi-year battery life in always-on monitoring applications. |
| Propagation Delay | 17µs (typ) on VCC fall - provides fast response to supply collapse while avoiding false triggers from µs-scale transients. |
| Output Type | Push-pull, active-high - drives CMOS inputs directly without pull-up resistors; sinks up to 9mA at VCC ≥ 4.5V. |
| Hysteresis | 5% (VTH+ / VTH− = 1.05) - eliminates oscillation near threshold during slow-ramp or noisy conditions. |
| Operating Temperature | −40°C to +125°C - qualified for automotive under-hood, industrial control, and extended-range portable equipment. |
Pinout & Package
MAX6462UR16+T is housed in a RoHS-compliant, lead-free SOT23-3 package (3-pin, 1.3mm × 2.9mm footprint, 1.0mm height), optimized for high-density PCB layouts in portable electronics.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Active-high push-pull output - asserts high when VCC < VTH−; returns low only after VCC exceeds VTH+ (1.672V). |
| 2 | GND | Analog/digital ground reference - must be connected directly to system ground plane for stable threshold accuracy. |
| 3 | VCC | Supply input and monitored voltage rail - powers the IC and serves as the sensed node; no separate sense pin. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ICC | 1.0µA max at 3.6V across full temperature range - reduces standby power in battery-backed systems by >90% vs. legacy supervisors. |
| Preset 1.6V threshold | Factory-trimmed, no external resistors required - eliminates BOM cost, layout area, and calibration labor for 1.6V brown-out protection. |
| Internal 5% hysteresis | Fixed VTH+ = VTH− × 1.05 - guarantees noise immunity without external hysteresis circuitry or feedback paths. |
| ±2.5% threshold accuracy | Over −40°C to +125°C - meets AEC-Q100 Grade 1 requirements for automotive sensor interfaces and industrial controllers. |
| Push-pull active-high output | VOH ≥ 0.8×VCC at ISOURCE = 8mA - directly drives MCU reset or enable pins without level-shifting or pull-up networks. |
Applications
| Battery Voltage Monitoring | Low-Voltage Microcontroller Reset |
|---|---|
|
Use Scenario: Continuous monitoring of primary Li-MnO₂ or alkaline battery voltage in medical glucose meters to trigger low-battery alert before shutdown. IC Role / Device Role / Timing Role: Voltage detector asserting active-high signal to MCU GPIO when cell voltage drops below 1.6V, enabling graceful data save and display warning. Use Value: 1.0µA ICC extends 200mAh coin-cell life to >10 years in sleep mode; ±2.5% threshold stability ensures consistent alert timing across temperature extremes. |
Use Scenario: Brown-out detection for 1.8V FPGA configuration circuits powered from DC/DC converter with soft-start ramp. IC Role / Device Role / Timing Role: Supervisor IC generating clean active-high reset pulse to hold FPGA in reset until VCC stabilizes above 1.672V after power-up. Use Value: 17µs propagation delay ensures reset assertion within one clock cycle of violation; push-pull output avoids weak pull-up timing uncertainty. |
| Portable Power Sequencing | Noise-Immune Load Switch Control |
|
Use Scenario: Enabling 3.3V subsystem only after main 5V rail reaches regulation in handheld test equipment with dual-rail power architecture. IC Role / Device Role / Timing Role: Threshold detector driving gate of external P-MOSFET load switch; OUT high enables switch once 5V rail exceeds 1.6V (pre-regulation check). Use Value: Internal hysteresis prevents erratic switching during 5V rail settling; 5% hysteresis margin accommodates ripple up to 80mV without chatter. |
Use Scenario: Controlling power to RF front-end module in Bluetooth LE beacon exposed to ESD and EMI in industrial environments. IC Role / Device Role / Timing Role: Immune voltage supervisor asserting active-high enable to LDO only when input rail remains stable above 1.6V for >17µs. Use Value: Immunity to <10µs transients per Typical Operating Characteristics graph ensures RF module stays powered during brief ESD-induced dips. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EB16DBZR | 1.6V threshold, 0.5µA ICC, open-drain active-low output, SOT23-3 | Requires external pull-up; incompatible with active-high MCU reset inputs without inversion logic | Select when lowest possible ICC (<0.6µA) is critical and system design accommodates active-low signaling. |
| TPS3801K16DBVR | 1.6V threshold, 2.5µA ICC, push-pull active-low output, SOT23-3 | Same package and threshold but inverted logic polarity; VOH/VOL specs differ slightly | Choose only if existing firmware/hardware expects active-low reset assertion and 2.5µA ICC is acceptable. |
Compared with TLV803EB16DBZR and TPS3801K16DBVR, the MAX6462UR16+T uniquely delivers 1.0µA ICC with native active-high push-pull output - eliminating external components and logic inversion while maintaining full −40°C to +125°C qualification.
Availability
MAX6462UR16+T is available at Aetrix Electronics and suitable for battery-powered medical devices, industrial sensor nodes, and automotive body electronics requiring stable component supply with long-term lifecycle support and guaranteed lead-free compliance.
Supply support for MAX6462UR16+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 ultra-low-power and high-reliability solutions.
The MAX6461–MAX6466 family was engineered specifically for space- and power-constrained systems needing accurate, single-component voltage supervision - targeting portable, automotive, and industrial equipment where external resistors or complex reset timing are unacceptable.
FAQ
What is the exact voltage threshold of MAX6462UR16+T and how stable is it over temperature?
The MAX6462UR16+T has a nominal lower trip threshold (VTH−) of 1.600V at +25°C, with guaranteed limits of 1.560V (min) to 1.640V (max) across −40°C to +125°C. Its ±2.5% accuracy over temperature ensures predictable brown-out behavior in automotive and industrial environments without recalibration.
Does MAX6462UR16+T include a reset timeout period like some supervisory ICs?
No, MAX6462UR16+T does not include a built-in reset timeout period. It is a pure voltage detector (not a µP supervisor), so its output responds immediately to VCC crossing VTH− or VTH+. For timeout functionality, consider the MAX6465UR16+T (150ms min) from the same family.
Can MAX6462UR16+T monitor a 1.2V supply rail?
Yes - MAX6462UR16+T operates down to VCC = 1.2V per Absolute Maximum Ratings and Electrical Characteristics tables. However, its 1.6V threshold means it will assert output only when a ≥1.6V rail drops below that point; it cannot detect faults on rails inherently below 1.6V.
What is the output drive capability of MAX6462UR16+T's push-pull stage?
MAX6462UR16+T's push-pull output delivers VOH ≥ 0.8×VCC at ISOURCE = 8.0mA (VCC ≥ 4.5V) and VOL ≤ 0.4V at ISINK = 9.0mA (VCC ≥ 4.5V). This allows direct interfacing with 1.8V–5V CMOS inputs without level shifters or pull-up resistors.
Is MAX6462UR16+T pin-compatible with other devices in the MAX6461–MAX6466 family?
Yes - all SOT23-3 variants in the MAX6461–MAX6466 family (e.g., MAX6461UR16+T, MAX6463UR16+T) share identical pinout (OUT, GND, VCC) and footprint. However, output logic polarity and presence of timeout differ; MAX6462UR16+T is active-high push-pull, while MAX6463UR16+T is active-low open-drain.
MAX6462UR16+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 High
- Reset Timeout:
- 14µs Typical Propagation Delay
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
MAX6462UR16+T FAQ
1.How can I place an order for MAX6462UR16+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6462UR16+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 MAX6462UR16+T reliable?
The price and inventory of MAX6462UR16+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6462UR16+T is usually 5 days.
3.What payment methods are accepted for MAX6462UR16+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6462UR16+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6462UR16+T?
MAX6462UR16+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6462UR16+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 MAX6462UR16+T?
For technical support, including MAX6462UR16+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6462UR16+T requirements.
6.How does Aetrix verify that MAX6462UR16+T is sourced from the original manufacturer or authorized distributors?
All MAX6462UR16+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 MAX6462UR16+T meets industry standards.
7.What is the process for return or replacement of MAX6462UR16+T?
All MAX6462UR16+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6462UR16+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 MAX6462UR16+T part is unused and in its original packaging.
Return procedure for MAX6462UR16+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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