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Analog Devices Inc./Maxim Integrated MAX16133HPB/V+T
- Part No.:
- MAX16133HPB/V+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-8
- Datasheet:
-
MAX16133HPB/V+T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-8
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MAX16133HPB/V+T from Analog Devices is a precision quad-voltage microprocessor supervisor IC designed for automotive ADAS systems. It monitors four independent supply rails (IN1–IN4) for undervoltage and overvoltage window faults with ±1% threshold accuracy over −40°C to +125°C, features dual active-low open-drain reset outputs (RESET1/RESET2), and supports factory-programmable input thresholds from 1.0V to 5.0V with ±4% to ±11% tolerance and 0.25%/0.5% hysteresis.
For engineers reviewing the MAX16133HPB/V+T datasheet, MAX16133HPB/V+T pinout, MAX16133HPB/V+T application, or MAX16133HPB/V+T equivalent, this device delivers deterministic fault detection in multivoltage ASICs, storage equipment, and server power sequencing where functional safety and AEC-Q100 compliance are required.
Technical Context
The MAX16133HPB/V+T implements a quad-input window comparator architecture with independent UV/OV detection per channel pair: RESET1 asserts when IN1 or IN2 falls outside its programmed window; RESET2 asserts when IN3 or IN4 falls outside its programmed window. All inputs share identical ±1% threshold accuracy and 0.25% hysteresis (per Table 8 suffix 'H'), enabling tight monitoring of asymmetric rail combinations like 3.3V/1.8V/1.2V/1.0V.
It integrates a fixed 560ms minimum reset timeout period (suffix 'T' per Table 9), guaranteed correct reset logic state down to VDD = 1.07V, and operates from 1.71V–5.5V supply with only 15μA quiescent current. The device is AEC-Q100 qualified (/V part number) and specified for automotive temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Channels | Quad (IN1–IN4), grouped as two independent pairs for dual reset assertion logic |
| Threshold Accuracy | ±1% over −40°C to +125°C - enables reliable fault detection without derating in harsh environments |
| Reset Timeout | 560ms min - ensures sufficient hold time for processor initialization in automotive boot sequences |
| Supply Current | 15μA typical - minimizes impact on always-on system power budgets |
| Operating Voltage | 1.71V to 5.5V - supports wide-range battery and post-regulator monitoring |
| Hysteresis | 0.25% of nominal input voltage - suppresses false resets during transient noise without degrading threshold precision |
| Output Type | Active-low, open-drain (RESET1/RESET2) - allows wired-OR configuration and flexible pull-up voltage selection |
Pinout & Package
MAX16133HPB/V+T is housed in an 8-pin SOT23 package (outline 21-0078, land pattern 90-0176), optimized for space-constrained automotive PCB layouts and compatible with standard reflow profiles (260°C peak).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDD | Power supply input | Bypass with 0.1µF capacitor to GND; UVLO ensures valid reset state above 1.07V |
| 2 - IN1 | Monitoring input 1 | First rail in RESET1 pair; factory-programmed nominal voltage (e.g., 3.3V per suffix 'H') |
| 3 - IN2 | Monitoring input 2 | Second rail in RESET1 pair; triggers RESET1 if either IN1 or IN2 violates window |
| 4 - GND | Ground reference | Common return for all analog and digital circuitry; critical for accurate threshold sensing |
| 5 - IN3 | Monitoring input 3 | First rail in RESET2 pair; factory-programmed nominal voltage (e.g., 1.2V) |
| 6 - IN4 | Monitoring input 4 | Second rail in RESET2 pair; triggers RESET2 if either IN3 or IN4 violates window |
| 7 - RESET2 | Active-low open-drain output 2 | Asserted when IN3 or IN4 fault; requires external pull-up resistor to system VDD or logic rail |
| 8 - RESET1 | Active-low open-drain output 1 | Asserted when IN1 or IN2 fault; electrically isolated from RESET2 for independent system partitioning |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent reset outputs | Enables hierarchical power sequencing - e.g., RESET1 controls core logic, RESET2 controls I/O subsystem |
| AEC-Q100 qualified (/V) | Validated for automotive use up to +125°C junction temperature with zero defects in HTOL and TC testing |
| Factory-programmable thresholds | Eliminates external resistor networks - IN1–IN4 set to precise voltages (e.g., 3.3V/1.8V/1.2V/1.0V per suffix 'H') at wafer level |
| Immunity to short transients | Internal comparator design rejects <15µs supply glitches - prevents spurious resets during load switching |
| Functional safety support | ±1% accuracy, guaranteed reset assertion below VDD = 1.07V, and diagnostic-ready open-drain outputs aid ISO 26262 ASIL-B decomposition |
Applications
| ADAS Sensor Fusion Module | Multivoltage ASIC Power Sequencing |
|---|---|
Use Scenario: Monitoring four independent rails (5.0V camera bias, 3.3V image processor, 1.8V SerDes, 1.2V core) in a surround-view ECU. IC Role / Device Role / Timing Role: Quad-supply window supervisor providing dual reset signals to isolate sensor and processing subsystems during brownout. Use Value: Prevents partial initialization by asserting RESET1 (for sensors) and RESET2 (for SoC) independently - avoids corrupted frame capture or lockup. | Use Scenario: Ensuring strict power-up order across 12V-to-1.0V conversion chain in radar SoC with multiple LDOs and DC/DC stages. IC Role / Device Role / Timing Role: Fault detector that validates each intermediate rail before enabling next-stage regulator via RESET1/RESET2 handshaking. Use Value: Guarantees 560ms minimum hold time per reset, eliminating race conditions during cold-start and enabling deterministic boot. |
| Automotive Server Storage Controller | High-Reliability Industrial Edge Gateway |
Use Scenario: Supervising NVMe SSD power rails (3.3V VCC, 1.8V VPP, 1.2V VDDQ, 1.0V VDD) in vehicle-mounted data logger. IC Role / Device Role / Timing Role: Window monitor detecting both under- and overvoltage events on all four rails simultaneously with ±1% accuracy. Use Value: Enables early fault detection before NAND write corruption occurs - critical for write-integrity in mission-critical logging. | Use Scenario: Monitoring redundant 24V DC input, 5V backplane, 3.3V MCU, and 1.8V FPGA rails in railway signaling gateway. IC Role / Device Role / Timing Role: Dual-reset supervisor supporting fail-safe shutdown: RESET1 triggers watchdog reset, RESET2 disables power MOSFETs. Use Value: 0.25% hysteresis prevents oscillation during marginal input conditions - essential for stable operation in EMI-heavy rail environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16135TPB/V+T | Same quad-input architecture and /V AEC-Q100 qualification, but uses 0.5% hysteresis (suffix 'P') instead of 0.25% (suffix 'H'); identical 560ms timeout (suffix 'T') | Higher hysteresis reduces sensitivity to noise but widens detectable fault window - less suitable for tightly regulated rails | Select MAX16135TPB/V+T only when system noise exceeds 0.25% of nominal rail voltage |
| TLV809E33DBVR | Single-channel 3.3V supervisor with 200ms timeout; no overvoltage detection, no quad capability, not AEC-Q100 qualified | Limited to basic undervoltage monitoring of one rail; lacks window detection, dual reset, and automotive qualification | Use only for cost-sensitive non-automotive applications requiring minimal supervision of a single 3.3V rail |
Compared with MAX16133HPB/V+T, MAX16135TPB/V+T offers wider hysteresis for noisy environments but sacrifices threshold resolution, while TLV809E33DBVR provides basic UV detection at lower cost but cannot replace quad-window supervision or meet automotive reliability requirements.
Availability
MAX16133HPB/V+T is available at Aetrix Electronics and suitable for ADAS sensor modules, multivoltage ASIC power sequencing, and automotive server storage controllers requiring stable component supply with full AEC-Q100 traceability and long-term lifecycle support.
Supply support for MAX16133HPB/V+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 automotive, industrial, communications, and healthcare markets with precision signal-chain solutions.
The MAX16132–MAX16135 product line was engineered specifically for automotive functional safety applications demanding ultra-precise, multi-rail voltage supervision with AEC-Q100 qualification and ±1% threshold stability across temperature.
FAQ
What is the exact input voltage configuration for MAX16133HPB/V+T?
The MAX16133HPB/V+T is a quad-input supervisor with factory-programmed nominal voltages corresponding to suffix 'H': IN1 = 3.3V, IN2 = 1.8V, IN3 = 1.2V, IN4 = 1.0V (per Table 4 and Selector Guide). Tolerance is ±7% with 0.25% hysteresis, yielding UV/OV thresholds of 3.069V/3.531V (IN1), 1.674V/1.926V (IN2), 1.116V/1.284V (IN3), and 0.93V/1.07V (IN4).
Does MAX16133HPB/V+T support overvoltage detection on all four inputs?
Yes, MAX16133HPB/V+T performs true window monitoring - detecting both undervoltage and overvoltage faults on all four inputs (IN1–IN4). Each input pair (IN1/IN2 and IN3/IN4) drives one of the two independent reset outputs (RESET1/RESET2), ensuring comprehensive fault coverage across the entire monitored voltage range.
What is the reset timeout period for MAX16133HPB/V+T and how is it set?
The MAX16133HPB/V+T has a factory-set minimum reset timeout period of 560ms, indicated by the suffix 'T' in the part number (Table 9). This timeout is fixed and shared across both RESET1 and RESET2 outputs - it begins when any monitored input enters fault and ends only after all inputs in the associated pair return within their window thresholds for the full duration.
Is MAX16133HPB/V+T pin-compatible with other devices in the MAX16132–MAX16135 family?
No - MAX16133HPB/V+T is not pin-compatible with MAX16132 or MAX16134 variants. While all share the same 8-pin SOT23 package, pin functions differ: MAX16132 uses single-input (IN/RESET), MAX16133 uses dual-pair quad-input (IN1/IN2/IN3/IN4/RESET1/RESET2), and MAX16134 uses triple-input with three independent resets. Pin mapping is unique to each variant per datasheet Figures 7–9.
How does the AEC-Q100 qualification of MAX16133HPB/V+T impact its use in automotive designs?
The /V suffix in MAX16133HPB/V+T confirms full AEC-Q100 Grade 0 qualification (−40°C to +125°C), including stress testing for HTOL, TC, UHAST, and ESD. This enables direct use in safety-critical ADAS domains without additional qualification effort, supports ISO 26262 hardware element analysis, and guarantees manufacturing traceability and defect rates compliant with automotive quality standards.
MAX16133HPB/V+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Voltage Detector
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 1.14V, 2.5V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 20ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-8
MAX16133HPB/V+T FAQ
1.How can I place an order for MAX16133HPB/V+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16133HPB/V+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 MAX16133HPB/V+T reliable?
The price and inventory of MAX16133HPB/V+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16133HPB/V+T is usually 5 days.
3.What payment methods are accepted for MAX16133HPB/V+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16133HPB/V+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16133HPB/V+T?
MAX16133HPB/V+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16133HPB/V+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 MAX16133HPB/V+T?
For technical support, including MAX16133HPB/V+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16133HPB/V+T requirements.
6.How does Aetrix verify that MAX16133HPB/V+T is sourced from the original manufacturer or authorized distributors?
All MAX16133HPB/V+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 MAX16133HPB/V+T meets industry standards.
7.What is the process for return or replacement of MAX16133HPB/V+T?
All MAX16133HPB/V+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16133HPB/V+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 MAX16133HPB/V+T part is unused and in its original packaging.
Return procedure for MAX16133HPB/V+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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