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Analog Devices Inc./Maxim Integrated MAX16133HPB+T
- Part No.:
- MAX16133HPB+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-8
- Datasheet:
-
MAX16133HPB+T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:4,421
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Product details
Overview
MAX16133HPB+T from Analog Devices is a dual-input, precision voltage supervisor IC designed for automotive ADAS systems. It monitors two independent supply rails (e.g., 3.3V and 1.8V) for undervoltage and overvoltage faults with ±1% threshold accuracy over -40°C to +125°C, features active-low open-drain reset outputs, and supports 23 factory-programmable reset timeout periods down to 20µs.
For engineers reviewing the MAX16133HPB+T datasheet, MAX16133HPB+T pinout, MAX16133HPB+T application, or MAX16133HPB+T equivalent, this device delivers high-precision window monitoring for multivoltage ASICs and storage equipment where functional safety and immunity to short transients are critical.
Technical Context
The MAX16133HPB+T implements independent dual-channel window supervision using factory-trimmed UV/OV thresholds referenced to programmable nominal input voltages (1.0V–5.0V). Each channel uses separate comparators with ±1% accuracy over temperature and selectable hysteresis (0.25% or 0.5% of VIN_NOM).
It employs a shared, factory-set reset timeout period across both outputs and guarantees correct logic state down to VDD = 1.07V. The device is AEC-Q100 qualified and operates from 1.71V to 5.5V supply, with 15μA typical quiescent current and immunity to fast monitored-supply transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Channels | Dual independent inputs (IN1, IN2) with separate reset assertion logic |
| Threshold Accuracy | ±1% over -40°C to +125°C - enables reliable fault detection in automotive environments without calibration |
| Reset Timeout Range | 20µs to 1200ms (23 factory-selectable options) - supports fast recovery or extended hold-off per system requirements |
| Supply Current | 12.5μA typical - minimizes power impact in always-on ADAS subsystems |
| Operating Voltage | 1.71V to 5.5V - compatible with modern low-voltage microcontrollers and FPGAs |
| Output Type | Active-low, open-drain (RESET1, RESET2) - allows wired-OR configuration and flexible pull-up voltage selection |
| Temperature Range | -40°C to +125°C - meets full automotive under-hood operating conditions |
Pinout & Package
MAX16133HPB+T is housed in an 8-pin SOT23 package (package code K8+5A), with 0.65mm pitch, footprint per land pattern 90-0176, and thermal resistance θJA = 196°C/W on four-layer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDD | Power supply input | Bypass with 0.1µF capacitor to GND; device functional only above 1.07V |
| 2 - IN1 | First monitored voltage input | Connect to nominal rail (e.g., 3.3V); asserts RESET1 if outside UV/OV window |
| 3 - IN2 | Second monitored voltage input | Connect to second rail (e.g., 1.8V); asserts RESET2 if outside UV/OV window |
| 4 - GND | Ground reference | Common return for all internal circuitry and reset output sinks |
| 5 - RESET1 | Active-low open-drain reset output 1 | Asserted when IN1 falls outside window; requires external pull-up resistor |
| 6 - RESET2 | Active-low open-drain reset output 2 | Asserted when IN2 falls outside window; requires external pull-up resistor |
| 7, 8 - N.C. | No-connect pins | Internally unconnected; recommended to tie to GND for mechanical stability |
Key Features
| Feature | Design Value |
|---|---|
| ±1% threshold accuracy over temperature | Eliminates need for system-level recalibration in automotive thermal cycles |
| Programmable input tolerance (±4% to ±11%) | Enables precise UV/OV window definition for diverse rail voltages without external components |
| 23 factory-set reset timeout options | Allows matching reset duration to processor boot sequence without external timing components |
| Immunity to short monitored-supply transients | Prevents false resets during brief voltage dips or spikes common in automotive power domains |
| AEC-Q100 qualified | Validated for automotive use including stress testing, reliability, and failure mode analysis |
Applications
| ADAS Camera Module | Multivoltage ASIC Power Sequencing |
|---|---|
Use Scenario: Dual-rail power monitoring for image sensor (1.8V) and ISP core (3.3V) in automotive surround-view camera. IC Role / Device Role / Timing Role: Independent window supervisor ensuring both rails remain within safe operating limits before releasing reset to downstream logic. Use Value: Prevents corrupted image capture or ISP lockup by asserting dedicated reset signals per rail with ±1% accuracy at 125°C. | Use Scenario: Coordinated power-good signaling for FPGA, DDR memory, and I/O banks powered from three distinct supplies. IC Role / Device Role / Timing Role: Dual-channel supervisor enabling staggered reset release based on individual rail stability, supporting complex sequencing. Use Value: Reduces BOM count vs. discrete supervisors while maintaining rail-specific fault isolation and timing control. |
| Automotive Infotainment Storage | Server SSD Power Management |
Use Scenario: Monitoring NVMe controller (3.3V) and NAND flash I/O (1.2V) supplies in head-unit solid-state storage. IC Role / Device Role / Timing Role: Fault-detection interface between power delivery network and host processor, triggering controlled shutdown on rail deviation. Use Value: Enables functional safety compliance (ISO 26262 ASIL-B support via accurate window detection and predictable timeout). | Use Scenario: Ensuring stable operation of enterprise SSD controllers and DRAM buffers during hot-plug or load transients. IC Role / Device Role / Timing Role: High-precision voltage guardrail that prevents data corruption by halting operation before supply collapse. Use Value: Achieves <15μA quiescent current and 20µs minimum timeout - critical for ultra-low-power standby states and rapid fault response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3808G33DBVR | Single-channel, fixed 3.3V threshold; no overvoltage detection; ±2% accuracy over temperature | Lacks dual-rail capability and window monitoring - suitable only for basic undervoltage reset on one rail | Select only when supervising a single supply and overvoltage protection is not required. |
| ADM1293-1ACPZ-R7 | Quad-channel, I²C-configurable thresholds; ±0.75% accuracy; higher quiescent current (45μA) | Requires digital interface and firmware integration; supports dynamic threshold adjustment but adds complexity | Choose when system demands programmable thresholds or telemetry, not for cost-sensitive fixed-function designs. |
Compared with TPS3808G33DBVR and ADM1293-1ACPZ-R7, the MAX16133HPB+T uniquely combines dual independent window supervision, ±1% accuracy over full automotive temperature range, and zero-firmware operation - making it optimal for deterministic, safety-critical ADAS power monitoring without MCU overhead.
Availability
MAX16133HPB+T is available at Aetrix Electronics and suitable for ADAS camera modules, multivoltage ASICs, and automotive storage equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX16133HPB+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 product line was engineered specifically for automotive ADAS and infotainment systems requiring AEC-Q100 qualified, high-accuracy voltage supervision with functional safety support.
FAQ
What is the nominal input voltage configuration for MAX16133HPB+T?
The MAX16133HPB+T is a dual-input supervisor with factory-programmed nominal voltages: IN1 = 3.3V and IN2 = 1.8V, as indicated by the "HPB" suffix per Analog Devices' ordering guide. These values define the center points for its ±1% accurate undervoltage/overvoltage window thresholds.
Does MAX16133HPB+T support overvoltage detection on both channels?
Yes, MAX16133HPB+T provides full window supervision on both IN1 and IN2 - detecting both undervoltage and overvoltage faults independently. Each channel asserts its respective reset output (RESET1 or RESET2) when its input falls outside the factory-set UV/OV window.
What reset timeout period is factory-set for MAX16133HPB+T?
The "H" in the MAX16133HPB+T part number corresponds to a 20ms minimum reset timeout period, per Table 9 of the datasheet. All reset outputs (RESET1 and RESET2) share this identical factory-programmed timeout duration.
Is MAX16133HPB+T AEC-Q100 qualified?
Yes, MAX16133HPB+T is AEC-Q100 qualified for Grade 0 (-40°C to +125°C), as confirmed in the Ordering Information section and Applications list. This qualification covers stress testing, reliability, and failure mechanisms required for automotive under-hood deployment.
Can unused inputs on MAX16133HPB+T be left floating?
No - unused inputs must not be left floating. Per the Applications Information section, any unused IN_ pin must be connected to its nominal voltage setting (e.g., tie INx to 3.3V or 1.8V) to prevent false resets caused by noise or leakage currents.
MAX16133HPB+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:
- Multi-Voltage Supervisor
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-8
MAX16133HPB+T FAQ
1.How can I place an order for MAX16133HPB+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16133HPB+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+T reliable?
The price and inventory of MAX16133HPB+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+T is usually 5 days.
3.What payment methods are accepted for MAX16133HPB+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16133HPB+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16133HPB+T?
MAX16133HPB+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16133HPB+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+T?
For technical support, including MAX16133HPB+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16133HPB+T requirements.
6.How does Aetrix verify that MAX16133HPB+T is sourced from the original manufacturer or authorized distributors?
All MAX16133HPB+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+T meets industry standards.
7.What is the process for return or replacement of MAX16133HPB+T?
All MAX16133HPB+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16133HPB+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+T part is unused and in its original packaging.
Return procedure for MAX16133HPB+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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