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Analog Devices Inc./Maxim Integrated MAX16133EEM/V+T
- Part No.:
- MAX16133EEM/V+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-8
- Datasheet:
-
MAX16133EEM/V+T.pdf
- Description:
- LOW-VOLTAGE, PRECISION, SINGLE/D
- Quantity:
- Payment:
- Shipping:
Inventory:1,362
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Product details
Overview
MAX16133EEM/V+T from Analog Devices is a dual-channel, precision voltage supervisor IC designed for automotive ADAS systems. It monitors two independent supply rails (IN1 = 3.3V, IN2 = 1.8V) for undervoltage and overvoltage faults within ±1% threshold accuracy over -40°C to +125°C, features active-low open-drain reset outputs with 560ms factory-set timeout, and operates from 1.71V to 5.5V VDD.
For engineers reviewing the MAX16133EEM/V+T datasheet, MAX16133EEM/V+T pinout, MAX16133EEM/V+T application, or MAX16133EEM/V+T equivalent, this device supports functional safety-critical power monitoring in multivoltage ASICs, storage equipment, and server power domains where windowed fault detection and guaranteed reset assertion down to VDD = 1.07V are required.
Technical Context
The MAX16133EEM/V+T implements dual independent window comparators with factory-trimmed UV/OV thresholds-IN1 at 3.3V nominal with ±9% tolerance (2.97V/3.63V), IN2 at 1.8V nominal with ±7% tolerance (1.674V/1.926V)-each with 0.5% hysteresis. Threshold accuracy is maintained at ±1% over full temperature range.
Its reset logic asserts active-low, open-drain outputs (RESET1, RESET2) when either input falls outside its programmed window; both outputs share the same 560ms minimum timeout period and require external pull-up resistors. The device guarantees correct output state as long as VDD > 1.07V, enabling robust operation during brown-out conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Range | 1.71V to 5.5V - supports wide-input industrial and automotive supplies |
| IN1 Nominal Voltage | 3.3V - matches common I/O rail for microcontrollers and FPGAs |
| IN2 Nominal Voltage | 1.8V - targets core voltage of advanced SoCs and memory interfaces |
| Threshold Accuracy | ±1% over -40°C to +125°C - enables reliable fault detection without calibration |
| Reset Timeout | 560ms min - ensures sufficient hold time for system initialization sequences |
| Supply Current | 12.5μA typical - minimizes quiescent power in always-on monitoring circuits |
| Output Type | Active-low, open-drain - allows wired-OR reset bus and flexible voltage-level translation |
Pinout & Package
MAX16133EEM/V+T is housed in an 8-pin SOT23 package (package code K8+5A, outline 21-0078), optimized for space-constrained automotive PCB layouts and qualified per AEC-Q100 Grade 0.
| 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 | First monitored voltage input | Connect to 3.3V rail; triggers RESET1 if voltage falls outside 2.97V–3.63V window |
| 3 - IN2 | Second monitored voltage input | Connect to 1.8V rail; triggers RESET2 if voltage falls outside 1.674V–1.926V window |
| 4 - GND | Ground reference | Common return path for all internal circuitry and reset outputs |
| 5 - RESET1 | Active-low open-drain reset output 1 | Asserts low when IN1 fault occurs; requires external pull-up to VDD or another logic rail |
| 6 - RESET2 | Active-low open-drain reset output 2 | Asserts low when IN2 fault occurs; independent timing but shares same timeout period |
| 7, 8 - N.C. | No-connect pins | Internally unused; recommended to connect to GND for mechanical stability and EMI control |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent window monitoring | Simultaneously supervises two distinct supply rails with separate UV/OV thresholds and reset outputs |
| ±1% threshold accuracy over temp | Eliminates need for external trimming or software compensation in automotive thermal environments |
| 560ms factory-programmed timeout | Matches typical boot-time requirements of ADAS processors without external RC timing components |
| Immunity to short supply transients | Rejects <15µs glitches on monitored inputs-prevents false resets during switching noise events |
| AEC-Q100 qualified | Validated for automotive applications including radar, camera modules, and domain controllers |
Applications
| ADAS Camera Module Power Monitoring | Multivoltage ASIC Sequencing |
|---|---|
Use Scenario: Real-time monitoring of dual-rail power (3.3V I/O + 1.8V core) in automotive surround-view camera ECUs. IC Role / Device Role / Timing Role: Dual-channel supervisor asserting independent reset signals to ensure clean boot and fault-triggered safe shutdown. Use Value: Prevents image corruption or sensor lockup by detecting sub-1% rail deviations before processor execution begins. | Use Scenario: Coordinating power-up sequencing across multiple voltage domains in radar SoCs with mixed 3.3V/1.8V/1.2V rails. IC Role / Device Role / Timing Role: Provides deterministic, temperature-stable reset assertion windows aligned to ASIC internal POR timing. Use Value: Enables single-chip supervision instead of discrete comparators + timers, reducing BOM count and layout area by >40%. |
| Automotive Storage Controller | Server Baseboard Management |
Use Scenario: Monitoring NVMe SSD controller rails (3.3V PCIe interface + 1.8V flash I/O) in vehicle infotainment storage units. IC Role / Device Role / Timing Role: Window comparator with hysteresis prevents chatter during transient load steps on shared power planes. Use Value: Guarantees 560ms reset hold time to satisfy NVMe specification Tready requirements after power stabilization. | Use Scenario: Supervising auxiliary 3.3V management rail and 1.8V BMC core supply in enterprise server baseboards. IC Role / Device Role / Timing Role: Dual-reset output feeds separate reset trees for host CPU and service processor domains. Use Value: Supports independent fault isolation and recovery paths while sharing one compact, AEC-Q100-aligned component. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16133BFM/V+T | Same dual-channel architecture but with IN1=3.3V/IN2=1.2V and ±6% tolerance (2.97V/3.63V, 1.128V/1.272V); 10ms reset timeout | Targets lower-voltage core rails (e.g., 1.2V FPGA cores) and faster reset response for non-safety-critical subsystems | Select when shorter timeout and 1.2V monitoring are required; not suitable for 1.8V ADAS SoC cores |
| TPS3808G33DBVR | Single-channel supervisor with 3.3V fixed threshold, ±0.5% accuracy, 200ms timeout, and push-pull output | Lacks dual monitoring and windowed OV/UV detection; no 1.8V channel or hysteresis programmability | Use only for single-rail applications where open-drain flexibility and dual-channel coverage are unnecessary |
Compared with MAX16133BFM/V+T and TPS3808G33DBVR, the MAX16133EEM/V+T uniquely delivers matched 3.3V/1.8V dual-window supervision with automotive-grade accuracy, 560ms safety-compliant timeout, and AEC-Q100 qualification-making it the sole option for ADAS SoC power integrity where both rails must be validated simultaneously under thermal stress.
Availability
MAX16133EEM/V+T is available at Aetrix Electronics and suitable for ADAS camera modules, multivoltage ASICs, and automotive storage equipment requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for MAX16133EEM/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 technologies, serving industrial, automotive, communications, and healthcare markets.
The MAX16132–MAX16135 family was engineered specifically for functional safety-critical power monitoring in automotive ADAS and autonomous driving systems, emphasizing precision, thermal stability, and AEC-Q100 compliance.
FAQ
What is the nominal input voltage configuration for MAX16133EEM/V+T?
The MAX16133EEM/V+T is factory-configured for dual-input monitoring: IN1 = 3.3V nominal with ±9% tolerance (2.97V–3.63V), and IN2 = 1.8V nominal with ±7% tolerance (1.674V–1.926V). These values are permanently programmed and cannot be adjusted in-circuit.
Does MAX16133EEM/V+T support overvoltage detection on both inputs?
Yes, MAX16133EEM/V+T performs true windowed supervision on both IN1 and IN2-detecting both undervoltage and overvoltage faults independently. Each input has dedicated UV and OV thresholds defined by its nominal voltage and tolerance setting, with 0.5% hysteresis applied to prevent oscillation near trip points.
What is the reset timeout period for MAX16133EEM/V+T and is it configurable?
The MAX16133EEM/V+T features a factory-programmed reset timeout period of 560ms (minimum), as indicated by the "T" suffix in the part number. This value is fixed and not user-adjustable; all reset outputs (RESET1 and RESET2) share this identical timeout duration.
How does MAX16133EEM/V+T ensure reliability during low-VDD conditions?
MAX16133EEM/V+T guarantees correct reset output logic state (active-low assertion) down to VDD = 1.07V, thanks to an integrated undervoltage lockout (UVLO) circuit. This ensures deterministic behavior during brown-out events and eliminates undefined reset states that could compromise system safety.
Is MAX16133EEM/V+T qualified for automotive applications?
Yes, MAX16133EEM/V+T is AEC-Q100 qualified (Grade 0, -40°C to +125°C) and packaged in an 8-pin SOT23 with RoHS-compliant finish. Its ±1% threshold accuracy over temperature, immunity to short transients, and functional safety features make it suitable for ASIL-B–capable ADAS subsystems.
MAX16133EEM/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:
- -
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 1.8V, 3.3V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 5ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-8
MAX16133EEM/V+T FAQ
1.How can I place an order for MAX16133EEM/V+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16133EEM/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 MAX16133EEM/V+T reliable?
The price and inventory of MAX16133EEM/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 MAX16133EEM/V+T is usually 5 days.
3.What payment methods are accepted for MAX16133EEM/V+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16133EEM/V+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16133EEM/V+T?
MAX16133EEM/V+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16133EEM/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 MAX16133EEM/V+T?
For technical support, including MAX16133EEM/V+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16133EEM/V+T requirements.
6.How does Aetrix verify that MAX16133EEM/V+T is sourced from the original manufacturer or authorized distributors?
All MAX16133EEM/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 MAX16133EEM/V+T meets industry standards.
7.What is the process for return or replacement of MAX16133EEM/V+T?
All MAX16133EEM/V+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16133EEM/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 MAX16133EEM/V+T part is unused and in its original packaging.
Return procedure for MAX16133EEM/V+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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