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Analog Devices Inc./Maxim Integrated MAX16160UCAB+T
- Part No.:
- MAX16160UCAB+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX16160UCAB+T.pdf
- Description:
- HIGH-ACCURACY 4-CHANNEL, ANY-INP
- Quantity:
- Payment:
- Shipping:
Inventory:1,652
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Product details
Overview
MAX16160UCAB+T from Maxim Integrated is a high-accuracy, four-channel supervisory IC that monitors IN2/VCC (1.7V–5.5V), IN1, IN3, and IN4 supply rails with ±1% threshold accuracy, asserts an active-low open-drain RESET output on any undervoltage event, and provides 20ms reset timeout - used in multi-rail server and industrial power sequencing.
For engineers reviewing the MAX16160UCAB+T datasheet, MAX16160UCAB+T pinout, MAX16160UCAB+T application, or MAX16160UCAB+T equivalent, key selection criteria include fixed 3.3V/2.5V/1.8V thresholds on IN1/IN3/IN4, 0.25% hysteresis, -40°C to +125°C operation, and SOT23-6 package compatibility with tight PCB space constraints.
Technical Context
The MAX16160UCAB+T integrates four independent voltage comparators with internal reference and hysteresis control, monitoring one supply (IN2/VCC) for both power and threshold reference while simultaneously supervising three external rails. Its power-up logic guarantees RESET assertion when any input exceeds 1V before threshold crossing.
It features a dedicated reset timeout timer with ±40% accuracy (–40% to +30%), internal 18μA pullup to IN2/VCC eliminating external resistors, and noise-immune comparator design tolerant of short transients on monitored inputs - all implemented in a single monolithic CMOS process optimized for automotive and industrial temperature grades.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | IN2/VCC = 1.7V to 5.5V - powers device and serves as reference for adjustable thresholds and internal pullup |
| Threshold Accuracy | ±1% over –40°C to +125°C - ensures reliable reset assertion across full industrial temperature range |
| Reset Timeout Period | 20ms (min) - guarantees minimum system hold time after all supplies stabilize before release |
| Supply Current | 17μA typical - enables low-power always-on supervision without impacting system efficiency |
| Input Hysteresis | 0.25% - suppresses false resets from brief supply dips while preserving threshold precision |
| Reset Output Type | Active-low open-drain with 18μA internal pullup to IN2/VCC - eliminates need for external pullup in most 3.3V/5V systems |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive, industrial control, and telecom base station use |
Pinout & Package
MAX16160UCAB+T is supplied in a 6-pin SOT23 package (package code U6+1C, outline 21-0058), footprint-compatible with standard SOT23-6 land pattern 90-0175. Thermal resistance θJA = 115°C/W on four-layer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN1) | Monitoring Input 1 | Fixed 3.3V threshold input - connect directly to 3.3V rail; requires 0.1µF bypass to GND for noise immunity |
| 2 (IN2/VCC) | Power Supply & Reference Input | Primary power source (1.7V–5.5V) and internal reference - must be bypassed with 0.1µF capacitor to GND |
| 3 (IN3) | Monitoring Input 3 | Fixed 2.5V threshold input - direct connection to 2.5V rail; 0.1µF decoupling required near pin |
| 4 (IN4) | Monitoring Input 4 | Fixed 1.8V threshold input - connects to 1.8V core supply; decoupling improves transient rejection |
| 5 (GND) | Ground Reference | Analog and digital ground return - must be low-impedance connection to system ground plane |
| 6 (RESET) | Active-Low Open-Drain Output | Asserts low on any undervoltage; deasserts after 20ms timeout; internal 18μA pullup to IN2/VCC |
Key Features
| Feature | Design Value |
|---|---|
| Any-input valid reset state | Guaranteed RESET assertion when any monitored input >1V during power-up - prevents premature microcontroller release |
| Four independent fixed thresholds | IN1=3.3V, IN3=2.5V, IN4=1.8V, IN2/VCC=3.3V - supports common multi-rail CPU/memory/I/O sequencing without external dividers |
| 0.25% hysteresis | Rejects <100ns supply glitches without compromising ±1% threshold accuracy - critical for noisy industrial environments |
| Internal 18μA pullup | Eliminates external resistor in 3.3V/5V systems - reduces BOM count and layout area while maintaining logic-high level |
| –40°C to +125°C qualification | Validated across full extended temperature range - suitable for engine control units, base station power modules, and industrial PLCs |
Applications
| Server Power Sequencing | Industrial PLC Monitoring |
|---|---|
Use Scenario: Coordinating startup of 3.3V I/O, 2.5V memory, 1.8V core, and 5V auxiliary rails in dual-socket x86 servers. IC Role / Device Role / Timing Role: Four-channel voltage supervisor ensuring all rails exceed thresholds before releasing CPU reset and enabling clock distribution. Use Value: Prevents boot failure from out-of-spec rail sequencing; 20ms timeout aligns with DDR4 memory initialization timing requirements. | Use Scenario: Supervising isolated 24V DC input, 5V logic, 3.3V MCU, and 12V actuator supplies in programmable logic controllers. IC Role / Device Role / Timing Role: Fault-detection hub asserting system-wide reset on any rail collapse - including brownout on 24V field bus. Use Value: Enables deterministic fail-safe shutdown; ±1% accuracy ensures detection at 23.5V (24V × 0.98) before controller lockup. |
| Telecom Line Card Power | High-End Printer Engine Control |
Use Scenario: Monitoring redundant 48V PoE-derived rails (3.3V, 1.8V, 1.2V, 5V) on carrier-grade line cards with hot-swap capability. IC Role / Device Role / Timing Role: Primary reset arbiter interfacing with FPGA configuration logic and PMBus power controllers. Use Value: 0.25% hysteresis rejects EMI-induced dips during hot-plug insertion; 125°C rating supports sealed chassis thermal profiles. | Use Scenario: Ensuring stable power to laser diode drivers (5V), image processor (1.2V), motor control (24V), and interface ASIC (3.3V) in A3-format printers. IC Role / Device Role / Timing Role: System-level watchdog enforcing power-good sequence before enabling high-current print head activation. Use Value: Prevents thermal runaway from partial rail startup; internal pullup simplifies interface to 3.3V FPGA reset input. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16161UCAB+T | Same pinout and thresholds, but 140ms reset timeout instead of 20ms | Better suited for systems requiring longer hold time (e.g., FPGA configuration loading) | Select MAX16161UCAB+T only if 20ms timeout is insufficient for your power-up timing budget |
| TPS3808G33DBVR | Single-channel 3.3V supervisor; no IN3/IN4 support; 200ms timeout; 3.5μA quiescent current | Requires three additional ICs to match four-rail coverage; lower IQ but higher component count | Choose TPS3808G33DBVR only for cost-sensitive, single-rail designs where multi-channel integration is unnecessary |
Compared with MAX16161UCAB+T and TPS3808G33DBVR, the MAX16160UCAB+T uniquely delivers four-rail supervision in one SOT23-6 package with 20ms timeout and 18μA internal pullup - minimizing board area and enabling compact, thermally robust multi-supply systems without external components.
Availability
MAX16160UCAB+T is available at Aetrix Electronics and suitable for server power sequencing, industrial PLC monitoring, telecom line card power, and high-end printer engine control requiring stable component supply across extended temperature ranges.
Supply support for MAX16160UCAB+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 industrial, automotive, communications, and computing markets.
The MAX16160UCAB+T belongs to Maxim's high-accuracy supervisory circuit family, engineered specifically for robust multi-rail power monitoring in thermally demanding environments where ±1% threshold stability and glitch immunity are mandatory.
FAQ
What is the reset timeout period of the MAX16160UCAB+T?
The MAX16160UCAB+T has a guaranteed minimum reset timeout period of 20ms. This duration begins after all monitored inputs rise above their respective threshold voltages and ends when the RESET output deasserts. The actual timeout may vary by ±40% across temperature and voltage, per datasheet specification tRP_ACC = –40% to +30%. This value is factory-trimmed and does not require external components.
Does the MAX16160UCAB+T require external pullup resistors on the RESET pin?
No, the MAX16160UCAB+T does not require external pullup resistors on the RESET pin. It features an internal 18μA (typical) pullup current sourced from IN2/VCC, which maintains a valid logic-high level when RESET is deasserted. External pullups are only needed if interfacing to a logic supply different from IN2/VCC, such as 1.8V or 5V systems not tied to the device's VCC.
What are the fixed threshold voltages for each input on the MAX16160UCAB+T?
The MAX16160UCAB+T has fixed thresholds of 3.3V on IN1, 2.5V on IN3, and 1.8V on IN4. IN2/VCC serves as both power supply and monitoring input with a fixed 3.3V threshold. These values are defined by the "CAB" suffix in the part number and are laser-trimmed at wafer test - no external resistor networks are required for these configurations.
Can the MAX16160UCAB+T monitor a 12V supply rail?
No, the MAX16160UCAB+T cannot directly monitor a 12V supply because its absolute maximum input voltage rating is +6V on all IN_ pins. To supervise 12V, an external resistor divider must be used to scale the voltage down to ≤5V - but this configuration would require using an adjustable-threshold variant (e.g., MAX16160UCAA+T), not the fixed-threshold MAX16160UCAB+T.
Is the MAX16160UCAB+T compatible with the WLP package version MAX16160NCAB+T?
No, the MAX16160UCAB+T (SOT23-6) and MAX16160NCAB+T (6-bump WLP) are not pin-compatible despite identical electrical specifications and threshold settings. They differ in physical layout, thermal performance (θJA = 115°C/W vs. 95.15°C/W), and soldering requirements. PCB redesign and requalification are required when switching between these packages - they are functionally equivalent but mechanically distinct variants.
MAX16160UCAB+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 4
- Voltage - Threshold:
- 3.3V, Adj
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX16160UCAB+T FAQ
1.How can I place an order for MAX16160UCAB+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16160UCAB+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 MAX16160UCAB+T reliable?
The price and inventory of MAX16160UCAB+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16160UCAB+T is usually 5 days.
3.What payment methods are accepted for MAX16160UCAB+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16160UCAB+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16160UCAB+T?
MAX16160UCAB+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16160UCAB+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 MAX16160UCAB+T?
For technical support, including MAX16160UCAB+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16160UCAB+T requirements.
6.How does Aetrix verify that MAX16160UCAB+T is sourced from the original manufacturer or authorized distributors?
All MAX16160UCAB+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 MAX16160UCAB+T meets industry standards.
7.What is the process for return or replacement of MAX16160UCAB+T?
All MAX16160UCAB+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16160UCAB+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 MAX16160UCAB+T part is unused and in its original packaging.
Return procedure for MAX16160UCAB+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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