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Analog Devices Inc./Maxim Integrated MAX16162NGK190+T
- Part No.:
- MAX16162NGK190+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 4-XFBGA, WLBGA
- Datasheet:
-
MAX16162NGK190+T.pdf
- Description:
- NANOPOWER SUPPLY SUPERVISOR WITH
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MAX16162NGK190+T from Analog Devices is a nanoPower supply supervisor IC designed for ultra-low-voltage core monitoring in battery-powered systems. It features a 1.90V factory-set reset threshold, 825nA typical quiescent current, active-low open-drain RST output, and guaranteed glitch-free power-up/down behavior down to 0V VCC. It is used to ensure reliable reset assertion during brownout and low-voltage power sequencing in wearable microcontrollers.
For engineers reviewing the MAX16162NGK190+T datasheet, MAX16162NGK190+T pinout, MAX16162NGK190+T application, or MAX16162NGK190+T equivalent, key selection considerations include its 0.6V–4.85V VIN monitoring range, 4-bump WLP package (1.06mm × 0.73mm), -40°C to +125°C operation, and absence of manual reset input - distinguishing it from the MAX16161 family.
Technical Context
The MAX16162NGK190+T uses separate VIN and VCC pins: VIN (monitored input) accepts 0.6V–4.85V, while VCC (supply) operates from 1.7V–5.5V. Its internal reference and timer guarantee RST remains asserted until VIN rises above VTH + VHYS (1.90V + 1% hysteresis) and holds for the selected reset timeout period.
Unlike conventional supervisors, it sinks RST current even at 0V VCC, eliminating undefined output states during slow power ramps. The device implements no MR input logic, fixed 1.90V threshold, and supports eight discrete reset timeout options (310µs to 2s), with this variant using the 'K' suffix indicating 1.90V VTH.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold Voltage | 1.90V ±1.5% - factory-trimmed voltage at which RST asserts on VIN drop; enables precise core-voltage supervision for sub-2V logic rails. |
| Quiescent Current | 825nA (typ) at 3.3V - extends battery life in always-on wearables and e-readers by minimizing standby drain. |
| Operating Supply Range (VCC) | 1.7V to 5.5V - powers the IC independently of monitored rail; allows use with higher auxiliary supplies while supervising low-VIN cores. |
| Monitored Input Range (VIN) | 0.6V to 4.85V - supports direct supervision of FPGA/microcontroller core voltages (e.g., 0.85V, 1.0V, 1.2V) without level-shifting. |
| Reset Output Type | Active-low open-drain - requires external pullup; ensures compatibility with diverse logic families and enables wired-OR reset bus configurations. |
| Reset Timeout Period | Configurable (310µs–2s); this variant uses 'K' suffix - matches standard timing requirements for ARM Cortex-M boot sequences and FPGA configuration. |
| Temperature Range | -40°C to +125°C - qualified for automotive cabin modules, industrial edge sensors, and high-reliability portable medical devices. |
Pinout & Package
MAX16162NGK190+T is housed in a 4-bump Wafer-Level Package (WLP), outline 21-100478, measuring 1.06mm × 0.73mm with 0.4mm bump pitch. The package is RoHS-compliant and optimized for space-constrained portable PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST | Active-low open-drain reset output | Asserts low when VIN < 1.90V; remains low until VIN > 1.90V + hysteresis and timeout elapses; requires external pullup resistor (e.g., 10kΩ). |
| VCC | IC supply voltage input | Powers internal circuitry; must be ≥1.7V; bypassed with 0.1µF ceramic capacitor to GND for noise immunity. |
| VIN | Monitored voltage input | Primary supervision node; threshold set to 1.90V; decoupled separately if noisy; enables independent monitoring of core rail distinct from VCC. |
| GND | Ground reference | Return path for all internal currents; must be connected to low-impedance system ground plane to maintain reset accuracy and glitch immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Glitch-free power-up/-down | RST stays valid (low) even at 0V VCC - eliminates spurious deassertion during slow ramps, critical for sub-1V processor cores. |
| Ultra-low quiescent current | 825nA typical - reduces annual battery drain to <1.5µAh, enabling multi-year operation in coin-cell-powered IoT nodes. |
| Separate VIN/VCC architecture | Enables monitoring of 0.6V rails (e.g., FPGA cores) while powered from stable 3.3V/5V supply - avoids dependency on unstable low-VIN for IC operation. |
| Factory-trimmed 1.90V threshold | ±1.5% accuracy over -40°C to +125°C - eliminates need for external resistor dividers or calibration in production. |
| Four-layer board thermal resistance (θJA) | 104.41°C/W - supports continuous operation at full temperature range without derating in compact layouts with adequate copper area. |
Applications
| Low-Voltage Microcontroller Core Supervision | Wearable Device Power Sequencing |
|---|---|
Use Scenario: Monitoring 0.85V/1.0V/1.2V core supply of an ARM Cortex-M4 in a smartwatch during cold-start and battery sag. IC Role / Device Role / Timing Role: Resets MCU until core rail stabilizes above 1.90V and holds reset for 100ms (selected timeout), preventing illegal instruction fetch. Use Value: Eliminates boot failures caused by conventional supervisors releasing reset prematurely below 1.2V, improving field reliability. |
Use Scenario: Coordinating enable timing between a boost converter (for display backlight) and a buck regulator (for sensor array) in wireless earbuds. IC Role / Device Role / Timing Role: Acts as a delay element: RST deassertion after timeout triggers EN signal to second-stage regulator, enforcing safe power-up order. Use Value: Prevents back-powering and latch-up by ensuring primary rail is stable before secondary rail activation - no external timing components required. |
| e-Reader Deep-Sleep Wake-Up | Portable Medical Sensor Reset Integrity |
Use Scenario: Ensuring clean reset release after wake-up from 10nA deep-sleep mode in an e-ink tablet powered by Li-ion. IC Role / Device Role / Timing Role: Supervises 1.8V I/O rail; asserts RST during voltage dip from display refresh load; guarantees minimum 250ms reset hold time. Use Value: Prevents corrupted frame buffer writes by synchronizing MCU reset release with rail recovery - no software workaround needed. |
Use Scenario: Guaranteeing deterministic reset behavior during transient ESD events on a handheld pulse oximeter's analog front-end supply. IC Role / Device Role / Timing Role: Monitors 3.3V analog supply; maintains RST assertion during 100ns–1µs transients that would cause false release in standard supervisors. Use Value: Meets IEC 60601-1 immunity requirements by avoiding logic glitches that could trigger unsafe state transitions in medical firmware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supply supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16162NGK175+T | Identical package, same -40°C to +125°C rating, but 1.75V reset threshold (±1.5%) | Suitable for 1.8V logic rails where tighter margin below nominal voltage is required | Select when supervising 1.8V supplies with higher tolerance for undervoltage detection at 1.75V vs. 1.90V |
| TLV803EB19DBZR | 3-pin SOT-23, 1.9V threshold, 1.8µA IQ, no separate VIN/VCC - monitors VCC only | Limited to VCC-supervised rails ≥1.9V; cannot monitor sub-1.9V cores like MAX16162NGK190+T | Choose for cost-sensitive, non-ultra-low-power designs where 1.9V VCC supervision suffices and WLP size is not critical |
Compared with MAX16162NGK190+T, the 1.75V variant offers earlier reset assertion for marginal 1.8V rails, while the TLV803EB19DBZR trades nanoPower performance and VIN/VCC flexibility for lower unit cost and simpler layout - but cannot replace MAX16162NGK190+T in core-rail supervision.
Availability
MAX16162NGK190+T is available at Aetrix Electronics and suitable for wearable electronics, portable medical sensors, and e-reader power management requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MAX16162NGK190+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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX16162NGK190+T belongs to the nanoPower supply supervisor family, engineered specifically for ultra-low-voltage, ultra-low-current reset supervision in battery-constrained edge devices where traditional supervisors fail to guarantee glitch-free behavior.
FAQ
What is the function of the separate VIN and VCC pins on the MAX16162NGK190+T?
The MAX16162NGK190+T uses VIN to monitor the target supply rail (e.g., a 1.2V microcontroller core) and VCC to power the IC itself (1.7V–5.5V). This separation allows the device to supervise sub-1.7V rails while remaining operational - a capability absent in single-supply supervisors. For MAX16162NGK190+T, VIN is set to trigger reset at 1.90V, while VCC can be derived from a stable auxiliary source.
Does the MAX16162NGK190+T have a manual reset (MR) input?
No, the MAX16162NGK190+T does not include a manual reset input. It is a dedicated voltage-monitoring supervisor with only VIN, VCC, RST, and GND terminals. The MR feature is exclusive to the MAX16161 series. If manual reset functionality is required, the MAX16161 with matching threshold (e.g., MAX16161NGK190+T) must be selected instead.
What is the significance of the 'K' suffix in MAX16162NGK190+T?
The 'K' in MAX16162NGK190+T denotes the 1.90V reset threshold voltage option, per Analog Devices' Selector Guide. The full suffix 'K190' confirms both the threshold (190 = 1.90V) and the absence of MR input ('K' indicates MAX16162). This distinguishes it from 'L'-suffixed MAX16161 parts (active-high MR) or 'K'-suffixed MAX16161 parts (active-low MR).
Can the MAX16162NGK190+T supervise a 0.6V supply rail?
Yes, the MAX16162NGK190+T can monitor VIN down to 0.6V, but its 1.90V threshold means it will assert reset only when that specific rail falls below 1.90V. To supervise a true 0.6V rail, a variant with lower threshold (e.g., MAX16162NGK060+T) must be used. The 1.90V version is intended for 1.8V/2.5V/3.3V rails where precise 1.90V trip point is required.
What package type is used for the MAX16162NGK190+T?
The MAX16162NGK190+T uses a 4-bump Wafer-Level Package (WLP), outline number 21-100478, with dimensions 1.06mm × 0.73mm and 0.4mm bump pitch. This ultra-compact RoHS-compliant package is optimized for space-constrained portable PCBs and requires compatible land pattern AN-1891.
MAX16162NGK190+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 4-XFBGA, WLBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Type:
- Power Supply Monitor
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.9V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 1s Typical
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-WLP (1.06x0.73)
MAX16162NGK190+T FAQ
1.How can I place an order for MAX16162NGK190+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16162NGK190+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 MAX16162NGK190+T reliable?
The price and inventory of MAX16162NGK190+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16162NGK190+T is usually 5 days.
3.What payment methods are accepted for MAX16162NGK190+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16162NGK190+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16162NGK190+T?
MAX16162NGK190+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16162NGK190+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 MAX16162NGK190+T?
For technical support, including MAX16162NGK190+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16162NGK190+T requirements.
6.How does Aetrix verify that MAX16162NGK190+T is sourced from the original manufacturer or authorized distributors?
All MAX16162NGK190+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 MAX16162NGK190+T meets industry standards.
7.What is the process for return or replacement of MAX16162NGK190+T?
All MAX16162NGK190+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16162NGK190+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 MAX16162NGK190+T part is unused and in its original packaging.
Return procedure for MAX16162NGK190+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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