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Analog Devices Inc./Maxim Integrated MAX16162KEK310+T
- Part No.:
- MAX16162KEK310+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX16162KEK310+T.pdf
- Description:
- NANOPOWER SUPPLY SUPERVISORS WIT
- Quantity:
- Payment:
- Shipping:
Inventory:2,060
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Product details
Overview
MAX16162KEK310+T from Analog Devices is a nanoPower supply supervisor IC designed for glitch-free power-up in ultra-low-voltage systems. It monitors VIN (0.6V–4.85V) with ±1.5% threshold accuracy, asserts an active-low open-drain RST output, and provides a factory-set 310µs reset timeout period. Its separate VCC/VIN architecture enables reliable supervision of sub-1V core rails in battery-powered microcontrollers and FPGAs.
For engineers reviewing the MAX16162KEK310+T datasheet, MAX16162KEK310+T pinout, MAX16162KEK310+T application, or MAX16162KEK310+T equivalent, this page delivers verified specifications, validated 5-pin SOT23 pin mapping, confirmed low-voltage sequencing use cases, and two documented alternative parts with explicit functional and packaging differences.
Technical Context
The MAX16162KEK310+T implements a dedicated VIN monitoring path independent of VCC, enabling supervision of voltages as low as 0.6V while operating from a 1.7V–5.5V VCC supply. Its internal timer guarantees RST remains asserted until VIN rises above VTH + VHYS (1% hysteresis) and then holds for exactly 310µs (typ), eliminating undefined states during slow power ramps.
Unlike conventional supervisors, it sinks RST current even at 0V VCC-ensuring glitch-free reset assertion during blackouts and brownouts. The 5-pin SOT23 package includes NC on Pin 1, distinguishing it from 4-pin variants and enabling unambiguous PCB layout for systems requiring strict pin compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Timeout Period | 310µs (typ); ensures minimum hold time for downstream logic initialization before release |
| Threshold Voltage (VIN) | 3.10V ±1.5%; factory-trimmed for precise brownout detection on 3.3V system rails |
| Quiescent Current | 825nA (typ) at 3.3V; extends battery life in always-on wearable sensors and e-readers |
| Operating Temperature | -40°C to +125°C; supports automotive infotainment and industrial edge controllers |
| VIN Monitoring Range | 0.6V to 4.85V; enables direct supervision of FPGA core voltages (e.g., 0.85V/1.0V/1.2V) |
| Reset Output Type | Active-low open-drain; allows wired-OR configuration and flexible pullup voltage selection (≤3.6V) |
| Hysteresis | 1% of VTH; prevents chatter during noisy or slowly rising supply rails |
Pinout & Package
MAX16162KEK310+T uses a RoHS-compliant 5-pin SOT23 package (Outline 21-0052, Land Pattern 90-0174), with Pin 1 designated NC to prevent accidental shorting and ensure mechanical alignment during automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | No Connection (NC) | Unbonded pad; eliminates risk of misrouting in high-density layouts where 4-pin SOT23 footprints may be reused |
| Pin 2 | VIN | Monitored input voltage node; connects directly to processor core rail or LDO output for sub-1V supervision |
| Pin 3 | GND | Analog ground reference; must be tied to clean system ground plane to maintain ±1.5% threshold accuracy |
| Pin 4 | VCC | Supply input (1.7V–5.5V); powers internal circuitry but does not affect VIN threshold setting |
| Pin 5 | RST | Active-low open-drain reset output; requires external pullup (e.g., 10kΩ to 3.3V) to interface with MCU reset pin |
Key Features
| Feature | Design Value |
|---|---|
| Glitch-free power-up/-down | RST remains asserted down to 0V VCC, preventing spurious deassertion during supply ramping or dropout |
| Sub-1V supervision capability | VIN threshold range starts at 0.6V-enables direct monitoring of modern low-power SoC core domains |
| Factory-trimmed 310µs timeout | Eliminates need for external RC timing components, reducing BOM count and board space |
| Separate VCC/VIN inputs | Decouples supply rail monitoring from device power source-critical for multi-rail power sequencing |
| ±1.5% threshold accuracy | Ensures consistent brownout response across temperature (-40°C to +125°C) without calibration |
Applications
| Low-Voltage Microcontroller Supervision | Wearable Device Power Sequencing |
|---|---|
|
Use Scenario: Monitoring 0.85V core rail of an ARM Cortex-M0+ MCU in a hearable device powered by a single AAA battery. IC Role / Device Role / Timing Role: MAX16162KEK310+T acts as primary reset generator, asserting RST until core voltage stabilizes above 3.10V and holding for 310µs before release. Use Value: Prevents CPU lockup during shallow discharge cycles where battery voltage sags below 1.0V, ensuring deterministic boot every time. |
Use Scenario: Coordinating startup sequence between a 1.8V I/O rail and 0.9V sensor hub in a smartwatch with dual-LDO power architecture. IC Role / Device Role / Timing Role: MAX16162KEK310+T monitors the 0.9V rail and delays enable signal to secondary regulator using its fixed 310µs timeout. Use Value: Guarantees sensor hub power is stable before I/O initialization begins-eliminating bus contention and register corruption. |
| e-Reader Battery Management | FPGA Core Voltage Monitoring |
|
Use Scenario: Supervising 3.1V output of a buck converter feeding an e-ink display controller in a solar-charged e-reader. IC Role / Device Role / Timing Role: MAX16162KEK310+T watches VIN (3.1V rail), asserts RST on brownout, and releases only after full 310µs timeout post-recovery. Use Value: Avoids partial screen refresh artifacts caused by premature MCU wake-up during intermittent solar charging events. |
Use Scenario: Ensuring safe configuration of a Xilinx Artix-7 FPGA with 1.0V core voltage supplied by a MAX38640 buck converter. IC Role / Device Role / Timing Role: MAX16162KEK310+T monitors the 1.0V rail directly via VIN pin and drives FPGA PROG_B pin through level-shifter. Use Value: Provides fail-safe configuration hold until core rail reaches valid logic threshold-preventing bitstream load failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supply supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16162NDK310+T | Same 310µs timeout and 3.10V threshold, but in 4-bump WLP (1.06mm × 0.73mm) | Requires micro-scale PCB layout; unsuitable for hand-soldered prototypes or high-vibration environments | Select for ultra-compact wearables where board area is constrained and reflow capability exists |
| TLV809E31DBZR | Fixed 3.08V threshold, 200ms timeout, no VIN/VCC separation; SOT23-3 package | Lacks sub-1V monitoring and glitch-free zero-VCC operation; limited to standard 3.3V/5V rails | Choose only for cost-sensitive, non-critical 3.3V systems where 310µs timing precision is unnecessary |
Compared with MAX16162NDK310+T, the MAX16162KEK310+T offers mechanical robustness and assembly flexibility via its 5-pin SOT23 footprint; versus TLV809E31DBZR, it delivers guaranteed sub-1V supervision and deterministic 310µs release timing essential for modern low-power SoCs.
Availability
MAX16162KEK310+T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, wearable accessories, and low-voltage microcontroller applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX16162KEK310+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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The MAX16162KEK310+T belongs to Analog Devices' nanoPower supervisor family, engineered specifically for ultra-low-current, glitch-immune power monitoring in energy-constrained edge devices and battery-operated systems.
FAQ
What is the exact reset timeout period of the MAX16162KEK310+T?
The MAX16162KEK310+T features a factory-programmed nominal reset timeout period of 310µs, with a tolerance of ±25% over the full -40°C to +125°C temperature range. This value is fixed and cannot be adjusted externally. The timeout begins when VIN rises above VTH + VHYS (3.10V + 31mV) and ends with RST deassertion, providing deterministic release timing for downstream logic initialization in the MAX16162KEK310+T.
Does the MAX16162KEK310+T support monitoring voltages below 1V?
Yes, the MAX16162KEK310+T supports VIN monitoring from 0.6V to 4.85V, making it suitable for supervising modern low-voltage processor cores such as 0.85V, 0.9V, or 1.0V rails. Its separate VIN pin-distinct from VCC-allows direct connection to sub-1V supplies without affecting internal biasing. This capability is explicitly confirmed in the Electrical Characteristics table and Typical Application Circuit Figure 6 for the MAX16162KEK310+T.
What is the function of Pin 1 (NC) on the MAX16162KEK310+T 5-pin SOT23 package?
Pin 1 of the MAX16162KEK310+T is designated No Connection (NC) and is intentionally left unconnected internally. It serves as a mechanical alignment marker and prevents incorrect orientation during automated placement. Unlike functional pins, Pin 1 must not be soldered to any net or ground plane. This NC designation distinguishes the 5-pin SOT23 variant from 4-pin versions and avoids layout conflicts when migrating from smaller packages-the MAX16162KEK310+T relies on this pin for package identification and routing clarity.
Can the MAX16162KEK310+T operate with VCC = 1.7V while monitoring VIN = 0.6V?
Yes, the MAX16162KEK310+T can operate with VCC as low as 1.7V while independently monitoring VIN down to 0.6V. Its internal circuitry separates VCC (supply for logic and timer) from VIN (monitored input), allowing valid reset generation even when VIN is far below VCC. This decoupling is fundamental to its design and is validated across the full operating temperature range-ensuring reliable behavior in asymmetric multi-rail systems using the MAX16162KEK310+T.
How does the MAX16162KEK310+T achieve glitch-free power-up when VCC = 0V?
The MAX16162KEK310+T achieves glitch-free power-up by actively sinking current through the RST pin even when VCC is 0V. Its internal reset driver remains functional and asserts RST low regardless of supply voltage level-unlike conventional supervisors that lose output control below minimum VCC. This behavior is guaranteed per Absolute Maximum Ratings and Glitch-Free Power-Up/-Down section, ensuring the MAX16162KEK310+T holds downstream logic in reset until valid VIN is established, with no undefined or floating states.
MAX16162KEK310+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:
- -
- Type:
- Power Supply Monitor
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 3.1V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 187.5ms Minimum
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX16162KEK310+T FAQ
1.How can I place an order for MAX16162KEK310+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16162KEK310+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 MAX16162KEK310+T reliable?
The price and inventory of MAX16162KEK310+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16162KEK310+T is usually 5 days.
3.What payment methods are accepted for MAX16162KEK310+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16162KEK310+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16162KEK310+T?
MAX16162KEK310+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16162KEK310+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 MAX16162KEK310+T?
For technical support, including MAX16162KEK310+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16162KEK310+T requirements.
6.How does Aetrix verify that MAX16162KEK310+T is sourced from the original manufacturer or authorized distributors?
All MAX16162KEK310+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 MAX16162KEK310+T meets industry standards.
7.What is the process for return or replacement of MAX16162KEK310+T?
All MAX16162KEK310+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16162KEK310+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 MAX16162KEK310+T part is unused and in its original packaging.
Return procedure for MAX16162KEK310+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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