My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX16133BFM+T
- Part No.:
- MAX16133BFM+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-8
- Datasheet:
-
MAX16133BFM+T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:3,174
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX16133BFM+T from Analog Devices is a dual-channel, precision voltage supervisor IC designed for automotive ADAS and multivoltage ASIC monitoring. It features ±1% threshold accuracy over -40°C to +125°C, factory-programmable 5.0V/1.8V nominal input voltages, ±4% window tolerance with 0.25% hysteresis, and a 2ms reset timeout period. The device asserts active-low open-drain reset outputs when either monitored supply falls outside its undervoltage/overvoltage window.
For engineers reviewing the MAX16133BFM+T datasheet, MAX16133BFM+T pinout, MAX16133BFM+T application, or MAX16133BFM+T equivalent, this page delivers verified electrical specifications, automotive-grade thermal performance, dual-input window monitoring behavior, and AEC-Q100-compliant design context essential for functional safety-critical power sequencing in ADAS ECUs and server power management.
Technical Context
The MAX16133BFM+T implements independent dual-channel window supervision using factory-trimmed comparators with ±1% total threshold accuracy across temperature. Each channel monitors its assigned supply (IN1 = 5.0V, IN2 = 1.8V) against programmable undervoltage and overvoltage thresholds derived from ±4% tolerance and 0.25% hysteresis settings.
It uses a shared 2ms factory-set reset timeout period and guarantees correct reset logic state down to VDD = 1.07V. All reset outputs are active-low, open-drain, requiring external pull-up resistors, and the device remains immune to short-duration monitored supply transients per characterization data.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Channels | Dual independent inputs (IN1, IN2) with separate reset assertion logic |
| Nominal Input Voltages | IN1 = 5.0V, IN2 = 1.8V - factory-programmed per ordering suffix BFM |
| Window Tolerance | ±4% - sets UVTH = 96% × VIN_NOM, OVTH = 104% × VIN_NOM |
| Hysteresis | 0.25% of VIN_NOM - provides noise immunity without degrading threshold accuracy |
| Reset Timeout | 2ms minimum - ensures reliable microprocessor reset hold time after fault recovery |
| Supply Current | 12.5μA typical - enables low-power always-on monitoring in battery-backed systems |
| Operating Temperature | -40°C to +125°C - qualified for under-hood automotive environments |
Pinout & Package
MAX16133BFM+T is housed in an 8-pin SOT23 package (package code K8+5A, outline 21-0078), 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; device operates from 1.71V–5.5V and maintains valid reset state down to 1.07V |
| 2 - IN1 | Monitoring input 1 | Connected to 5.0V rail; asserts RESET1 when voltage falls outside 4.8V–5.2V window |
| 3 - IN2 | Monitoring input 2 | Connected to 1.8V rail; asserts RESET2 when voltage falls outside 1.728V–1.872V window |
| 4 - GND | Ground reference | Common return path for VDD, IN1, IN2, and reset outputs |
| 5 - RESET1 | Active-low open-drain reset output 1 | Asserts low when IN1 fault detected; requires external pull-up; shares 2ms timeout with RESET2 |
| 6 - RESET2 | Active-low open-drain reset output 2 | Asserts low when IN2 fault detected; requires external pull-up; shares 2ms timeout with RESET1 |
| 7 - NC | No-connect | Internally unconnected; must be tied to GND per datasheet recommendation |
| 8 - NC | No-connect | Internally unconnected; must be tied to GND per datasheet recommendation |
Key Features
| Feature | Design Value |
|---|---|
| ±1% threshold accuracy over temperature | Enables precise power-rail monitoring in ADAS sensors without calibration drift across full automotive range |
| Independent dual reset outputs | Allows separate reset control for CPU core (1.8V) and I/O (5.0V) domains in multivoltage ASICs |
| 23 selectable reset timeout periods | 2ms option (suffix 'B') matches typical microcontroller power-up stabilization requirements |
| Immunity to short monitored supply transients | Prevents false resets during brief voltage dips common in automotive load-dump or cold-crank events |
| AEC-Q100 qualified | Validated for automotive use with guaranteed reliability at 125°C junction temperature |
Applications
| ADAS Sensor Module Power Monitoring | Multivoltage ASIC Sequencing |
|---|---|
Use Scenario: Real-time monitoring of 5.0V imaging sensor bias and 1.8V digital core supplies in forward-facing camera ECU. IC Role / Device Role / Timing Role: Dual-channel window supervisor asserting independent resets to halt unsafe operation during rail collapse or overvoltage. Use Value: Prevents corrupted image capture or erroneous object detection by ensuring both rails meet ±4% window before releasing processor reset. | Use Scenario: Coordinating power-up sequence for FPGA-based processing unit with 5.0V I/O banks and 1.8V core logic. IC Role / Device Role / Timing Role: Independent reset generation per rail, enabling staggered release timing via external RC networks on each reset line. Use Value: Eliminates need for discrete supervisors or complex CPLD logic, reducing BOM count and layout area by 60% versus dual discrete solutions. |
| Automotive Infotainment SoC Supply Validation | Industrial Server VRM Health Check |
Use Scenario: Validating stable 5.0V USB PHY and 1.8V display interface supplies in head-unit multimedia processor. IC Role / Device Role / Timing Role: Window comparator detecting undervoltage/overvoltage faults with 2ms timeout, feeding system watchdog. Use Value: Enables fail-safe shutdown before corrupted audio/video buffers cause user-experience degradation or thermal runaway. | Use Scenario: Verifying output stability of multiple point-of-load VRMs supplying CPU, memory, and PCIe controllers in 1U server chassis. IC Role / Device Role / Timing Role: Dual-input supervisor validating two critical VRM outputs (e.g., 5V standby and 1.8V core) before enabling main power tree. Use Value: Reduces risk of catastrophic board-level failure during hot-swap events by catching VRM overshoot/undershoot within 2ms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16133BHA+T | Same dual-channel architecture but with 5.0V/1.2V nominal inputs and ±5% tolerance | Targeted at 1.2V-core/5V-I/O ASICs rather than 1.8V-core systems | Select when monitoring 1.2V logic rails; requires validation of 1.2V UV/OV thresholds against system requirements |
| TLV809E50DBVR | Single-channel 5.0V supervisor with fixed ±2% window and no overvoltage detection | Lacks dual-input capability and overvoltage monitoring; only supports basic undervoltage reset | Use only for single-rail monitoring where overvoltage immunity and dual-channel independence are not required |
Compared with MAX16133BHA+T and TLV809E50DBVR, the MAX16133BFM+T uniquely delivers matched 5.0V/1.8V dual-window supervision with ±4% tolerance, 0.25% hysteresis, and AEC-Q100 qualification-making it the only option that satisfies functional safety requirements for ADAS power integrity without design compromises.
Availability
MAX16133BFM+T is available at Aetrix Electronics and suitable for ADAS sensor modules, multivoltage ASICs, and industrial servers requiring stable component supply with automotive-grade reliability and traceable sourcing.
Supply support for MAX16133BFM+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.
The MAX16132–MAX16135 family was engineered specifically for functional safety-critical power monitoring in automotive ADAS and high-reliability computing systems, emphasizing ±1% threshold accuracy, transient immunity, and AEC-Q100 compliance.
FAQ
What is the exact nominal input voltage configuration for MAX16133BFM+T?
The MAX16133BFM+T is factory-configured with IN1 = 5.0V and IN2 = 1.8V nominal input voltages, as indicated by the 'BFM' ordering suffix per Analog Devices' Selector Guide. This pairing targets common automotive ASIC power domains where 5.0V supplies I/O peripherals and 1.8V powers digital cores. Thresholds are calculated as UVTH = 96% × VIN_NOM and OVTH = 104% × VIN_NOM, yielding 4.8V–5.2V and 1.728V–1.872V windows respectively.
Does MAX16133BFM+T support overvoltage detection on both channels?
Yes, MAX16133BFM+T supports full window monitoring-including overvoltage detection-on both IN1 and IN2. Unlike basic reset ICs that only detect undervoltage, this device asserts RESET1 when IN1 falls below 4.8V or rises above 5.2V, and RESET2 when IN2 falls below 1.728V or rises above 1.872V. This dual-direction fault coverage is essential for protecting sensitive ADAS sensors from transient overvoltage events during load dump or ESD coupling.
What is the reset timeout period for MAX16133BFM+T and how is it set?
The MAX16133BFM+T has a factory-set reset timeout period of 2ms (minimum), denoted by the 'B' character in its part number suffix. This value is fixed at wafer sort and cannot be adjusted externally. The 2ms duration ensures sufficient hold time for microcontrollers to complete internal initialization after power stabilization, while avoiding excessive delays in safety-critical ADAS response loops. Both RESET1 and RESET2 share this identical timeout period.
How does MAX16133BFM+T ensure reliability in automotive under-hood environments?
MAX16133BFM+T ensures automotive reliability through AEC-Q100 qualification, guaranteed operation from -40°C to +125°C, ±1% threshold accuracy over temperature, and immunity to short-duration supply transients. Its 8-pin SOT23 package meets JEDEC JESD51-7 thermal standards (θJA = 196°C/W), and the device maintains correct reset logic state down to VDD = 1.07V-critical for cold-crank scenarios. These features collectively satisfy ISO 26262 ASIL-B readiness requirements for power monitoring subsystems.
Can unused input pins on MAX16133BFM+T be left floating?
No, unused input pins on MAX16133BFM+T must not be left floating. Per the datasheet Applications Information section, any unused IN_ input must be connected to its nominal voltage setting (e.g., tie IN3/IN4 to appropriate voltage if used in quad variants). For MAX16133BFM+T-which is dual-channel-pins 7 and 8 are designated NC (no-connect) and must be tied to GND, not left floating, to prevent noise coupling and ensure stable internal reference operation.
MAX16133BFM+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:
- 1.2V, 3.3V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 1ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-8
MAX16133BFM+T FAQ
1.How can I place an order for MAX16133BFM+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX16133BFM+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 MAX16133BFM+T reliable?
The price and inventory of MAX16133BFM+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX16133BFM+T is usually 5 days.
3.What payment methods are accepted for MAX16133BFM+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX16133BFM+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX16133BFM+T?
MAX16133BFM+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX16133BFM+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 MAX16133BFM+T?
For technical support, including MAX16133BFM+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX16133BFM+T requirements.
6.How does Aetrix verify that MAX16133BFM+T is sourced from the original manufacturer or authorized distributors?
All MAX16133BFM+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 MAX16133BFM+T meets industry standards.
7.What is the process for return or replacement of MAX16133BFM+T?
All MAX16133BFM+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX16133BFM+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 MAX16133BFM+T part is unused and in its original packaging.
Return procedure for MAX16133BFM+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX16133BFM+T Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
