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Analog Devices Inc./Maxim Integrated MAX16133LFM+T
- Part No.:
- MAX16133LFM+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-8
- Datasheet:
-
MAX16133LFM+T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:2,898
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Product details
Overview
MAX16133LFM+T from Analog Devices is a precision dual-voltage microprocessor supervisor IC designed for automotive ADAS and multivoltage ASIC monitoring. It features two independent, ±1% accurate window voltage monitors (IN1/IN2), active-low open-drain reset outputs (RESET1/RESET2), 23 factory-programmable reset timeout periods (e.g., 5ms min), and operates from 1.71V to 5.5V supply across –40°C to +125°C.
For engineers reviewing the MAX16133LFM+T datasheet, MAX16133LFM+T pinout, MAX16133LFM+T application, or MAX16133LFM+T equivalent, this device delivers verified window supervision with programmable thresholds (e.g., 5.0V/3.3V nominal inputs), ±1% accuracy over temperature, guaranteed correct reset logic down to VDD = 1.07V, and AEC-Q100 qualification for functional safety-critical systems.
Technical Context
The MAX16133LFM+T implements dual independent window comparators with factory-trimmed undervoltage and overvoltage thresholds referenced to user-selected nominal input voltages (1.0V–5.0V). Each channel uses separate internal voltage references and hysteresis (0.25% or 0.5%) to reject short transients while maintaining ±1% threshold accuracy across –40°C to +125°C.
All reset outputs share a single factory-set timeout period (here: 5ms minimum), assert on window violation, and remain asserted for the full timeout after input recovery. The device requires external pullup resistors on RESET1/RESET2 and guarantees valid logic states down to VDD = 1.07V, enabling robust power sequencing in automotive multi-rail systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.71V to 5.5V - supports wide-input industrial and automotive rails without external regulation |
| Threshold Accuracy | ±1% over –40°C to +125°C - enables precise fault detection without calibration |
| Input Voltage Range | 1.0V to 5.0V (factory-programmable per channel) - covers core, I/O, and analog supply monitoring |
| Reset Timeout Period | 5ms (min) - ensures sufficient processor hold time during brown-out recovery |
| Quiescent Current | 12.5μA (typ) - minimizes standby power in always-on ADAS modules |
| Operating Temperature | –40°C to +125°C - meets automotive under-hood environmental requirements |
| Reset Output Type | Active-low, open-drain - allows wired-OR reset bus and flexible voltage-level translation |
Pinout & Package
MAX16133LFM+T is housed in an 8-pin SOT23 package (outline 21-0078, land pattern 90-0176), optimized for space-constrained automotive PCBs and compatible with standard reflow profiles (260°C peak).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pin 1) | Power supply input | Must be bypassed with 0.1µF capacitor to GND; UVLO ensures valid reset state above 1.07V |
| IN1 (Pin 2) | First monitored voltage input | Connect to nominal supply (e.g., 5.0V); asserts RESET1 if voltage falls outside programmed window |
| IN2 (Pin 3) | Second monitored voltage input | Connect to nominal supply (e.g., 3.3V); asserts RESET2 if voltage falls outside programmed window |
| GND (Pin 4) | Ground reference | Common return for all analog and digital circuitry; critical for noise immunity |
| RESET1 (Pin 5) | First reset output | Open-drain, active-low; requires external pullup; deasserts after 5ms timeout when IN1 recovers |
| RESET2 (Pin 6) | Second reset output | Open-drain, active-low; requires external pullup; deasserts after 5ms timeout when IN2 recovers |
| N.C. (Pin 7) | No-connect | Internally unused; recommended to tie to GND for mechanical stability |
| N.C. (Pin 8) | No-connect | Internally unused; recommended to tie to GND for mechanical stability |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent window monitoring | Enables simultaneous supervision of two critical supplies (e.g., MCU core + I/O rail) with no shared failure mode |
| ±1% threshold accuracy over temperature | Eliminates need for system-level recalibration in automotive thermal cycles |
| 23 factory-programmable reset timeouts | Allows precise match to processor reset timing requirements without external RC networks |
| Immunity to short monitored-supply transients | Prevents false resets during brief load-switching events or ESD-induced dips |
| AEC-Q100 qualified | Validated for automotive applications requiring functional safety (ISO 26262 ASIL-B support) |
Applications
| ADAS Camera Module Power Management | Multivoltage ASIC Sequencing |
|---|---|
Use Scenario: Monitoring dual power rails (5V imaging sensor + 1.8V ISP core) in an automotive surround-view camera. IC Role / Device Role / Timing Role: Dual-window supervisor asserting independent resets to halt processing during any rail fault before image corruption occurs. Use Value: Prevents corrupted frame capture and unsafe actuation by enforcing strict 5ms reset hold time aligned with sensor startup sequence. | Use Scenario: Ensuring correct power-up order and stable operation of a triple-rail ASIC (3.3V interface, 1.2V core, 1.8V memory) in a radar SoC. IC Role / Device Role / Timing Role: Independent voltage validation per rail with ±1% accuracy eliminates need for discrete supervisors or margining. Use Value: Reduces BOM count by 2× vs. single-channel alternatives and guarantees rail integrity across full automotive temperature range. |
| Automotive Infotainment Domain Controller | Industrial Storage Equipment |
Use Scenario: Supervising 5V USB-C PD input and 3.3V system management rail in a head-unit controller. IC Role / Device Role / Timing Role: Window monitoring detects both overvoltage (e.g., faulty charger) and undervoltage (e.g., cable drop) on each rail independently. Use Value: Enables safe shutdown before overvoltage damages downstream USB PHY or PMIC, meeting OEM transient immunity specs. | Use Scenario: Validating redundant 12V and 5V supplies powering NVMe SSD controllers and buffer memory in enterprise storage enclosures. IC Role / Device Role / Timing Role: Dual-channel supervision triggers system-level alert and graceful shutdown upon first rail fault. Use Value: Achieves >99.999% data integrity uptime by preventing write operations during marginal supply conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16133BFM+T | Same dual-input architecture, but configured for 5.0V/1.8V nominal inputs and 1ms timeout | Optimized for high-speed processor reset where shorter hold time is acceptable | Select when matching specific voltage pairs and faster reset release is required |
| TLV809E33DBVR | Single-channel, fixed 3.3V supervisor with 200ms timeout; no overvoltage detection or programmability | Limited to basic undervoltage monitoring of one rail; lacks window functionality and AEC-Q100 rating | Use only for non-automotive, single-rail cost-sensitive designs where window supervision is unnecessary |
Compared with MAX16133BFM+T and TLV809E33DBVR, the MAX16133LFM+T uniquely provides dual independent window supervision with 5ms timeout and AEC-Q100 qualification-making it the only option suitable for automotive ADAS dual-rail fault detection with precise timing control.
Availability
MAX16133LFM+T is available at Aetrix Electronics and suitable for ADAS camera modules, multivoltage ASIC sequencing, automotive infotainment domain controllers, industrial storage equipment, and servers requiring stable component supply with automotive-grade reliability and traceable sourcing.
Supply support for MAX16133LFM+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.
The MAX16132–MAX16135 family was engineered specifically for automotive ADAS and high-reliability multivoltage systems, delivering ±1% window supervision accuracy, AEC-Q100 qualification, and integrated transient immunity without external components.
FAQ
What is the nominal input voltage configuration for MAX16133LFM+T?
The MAX16133LFM+T is factory-configured for dual-input monitoring with nominal voltages of 5.0V on IN1 and 3.3V on IN2, as indicated by the "LFM" suffix per Analog Devices' ordering guide. This pairing supports common automotive processor core/I/O rail combinations and enables precise window thresholds (e.g., 4.75V–5.25V and 3.135V–3.465V with ±5% tolerance).
Does MAX16133LFM+T support overvoltage detection?
Yes, MAX16133LFM+T provides full window supervision, detecting both undervoltage and overvoltage faults on each input. Its ±1% accurate thresholds ensure reliable overvoltage detection-for example, triggering RESET1 if IN1 exceeds 5.05V (at 5.0V nominal and ±1% accuracy), critical for protecting sensitive ADAS sensors from supply surges.
What is the reset timeout period for MAX16133LFM+T?
The MAX16133LFM+T has a factory-set minimum reset timeout period of 5ms, as specified by the "F" suffix in its part number per Table 9 of the datasheet. This timeout applies identically to both RESET1 and RESET2 outputs and ensures sufficient hold time for microprocessor initialization after supply recovery.
Is MAX16133LFM+T qualified for automotive use?
Yes, MAX16133LFM+T is AEC-Q100 qualified for Grade 0 (–40°C to +125°C), making it suitable for under-hood and ADAS applications. Its design includes guaranteed reset logic validity down to VDD = 1.07V, ±1% threshold accuracy over temperature, and immunity to short supply transients-key requirements for ISO 26262 functional safety compliance.
How are the reset outputs configured on MAX16133LFM+T?
MAX16133LFM+T features two independent active-low, open-drain reset outputs: RESET1 (Pin 5) responds solely to IN1 violations, and RESET2 (Pin 6) responds solely to IN2 violations. Each requires an external pullup resistor to VDD or another logic rail, enabling flexible reset bus architectures and voltage-level translation in multirail systems.
MAX16133LFM+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 1.2V, 3.3V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 50ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-8
MAX16133LFM+T FAQ
1.How can I place an order for MAX16133LFM+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16133LFM+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 MAX16133LFM+T reliable?
The price and inventory of MAX16133LFM+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16133LFM+T is usually 5 days.
3.What payment methods are accepted for MAX16133LFM+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16133LFM+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16133LFM+T?
MAX16133LFM+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16133LFM+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 MAX16133LFM+T?
For technical support, including MAX16133LFM+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16133LFM+T requirements.
6.How does Aetrix verify that MAX16133LFM+T is sourced from the original manufacturer or authorized distributors?
All MAX16133LFM+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 MAX16133LFM+T meets industry standards.
7.What is the process for return or replacement of MAX16133LFM+T?
All MAX16133LFM+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16133LFM+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 MAX16133LFM+T part is unused and in its original packaging.
Return procedure for MAX16133LFM+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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