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Analog Devices Inc./Maxim Integrated MAX20087ATPA/VY+T
- Part No.:
- MAX20087ATPA/VY+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Current Regulation/Management
- Package:
- 20-WFQFN Exposed Pad
- Datasheet:
-
MAX20087ATPA/VY+T.pdf
- Description:
- IC CURRENT SWITCH 8% 20TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,241
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Product details
Overview
MAX20087ATPA/VY+T from Analog Devices is a quad-channel automotive-grade high-side camera power protector IC with integrated diagnostics and ASIL B compliance. It delivers up to 600mA per channel, features ±8% current-limit accuracy, 110mV dropout at 300mA, and supports 3V–15V input supply for Power-over-Coax radar and camera modules.
For engineers reviewing the MAX20087ATPA/VY+T datasheet, MAX20087ATPA/VY+T pinout, MAX20087ATPA/VY+T application, or MAX20087ATPA/VY+T equivalent, this device is selected for safety-critical ADAS camera power management requiring fault diagnostics, I²C-configurable enable control, soft-start/soft-shutdown timing, and thermal/overcurrent/overvoltage protection per channel.
Technical Context
The MAX20087ATPA/VY+T implements four independent high-side NMOS switches with per-channel overtemperature shutdown, adjustable current limiting (100–600mA), and differential output over/undervoltage detection. Its internal 8-bit ADC supports three multiplexed diagnostic modes: per-output current (3mA/LSB), per-output voltage (70mV/LSB), or system supply readings (VIN/VDD/VISET).
Control is delivered via an I²C interface (up to 1.1MHz) with configurable address (ADDR pin), active-high EN input, and open-drain INT output. The device operates across -40°C to +125°C ambient and meets AEC-Q100 Grade 0, with ASIL B compliance achieved without additional software diagnostics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Channels | 4 independent high-side protected outputs, each capable of 600mA continuous load current |
| Input Voltage Range | 3V to 15V - supports wide-range camera supply rails including PoC systems |
| Current Limit Accuracy | ±8% - ensures predictable short-circuit response and consistent channel-to-channel matching |
| On-Resistance (RDS(on)) | 400–700mΩ - enables low-loss operation with only 110mV drop at 300mA |
| Soft-Start / Soft-Shutdown | 0.5ms ramp-up / 0.25ms ramp-down - prevents inrush current and output ringing during switching |
| ADC Resolution & Modes | 8-bit with selectable mux: current (3mA/LSB), output voltage (70mV/LSB), or supply monitoring (VIN/VDD/VISET) |
| Diagnostic Coverage | Per-channel OV/UV/OC/TS status bits + ISET integrity check - enables ASIL B compliance and full fault visibility |
Pinout & Package
MAX20087ATPA/VY+T is housed in a 4mm × 4mm, 20-pin SWTQFN-EP package (package code T2044Y+4C) with exposed thermal pad. Pin assignment matches the MAX20087 variant per official pin description table.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Camera supply input | High-voltage rail (3–15V) feeding all four protected outputs; withstands 26V short-to-battery |
| OUT1–OUT4 | Protected camera supply outputs | Four independent high-side switch outputs; each supports 600mA, soft-start, and individual fault reporting |
| ISET | Current limit setting | Analog input referenced to GND; resistor value sets per-channel ILIM from 100mA to 600mA (±8% accuracy) |
| VDD | Device logic supply | 3.0–5.5V supply powering internal logic, ADC, and I²C interface; includes UVLO/OVLO protection |
| EN | Enable control input | Active-high digital input; rising edge initiates soft-start on enabled channels per CONFIG register |
| SCL / SDA | I²C serial interface | Standard 2-wire bus (up to 1.1MHz); supports read/write of 16 registers including STAT1/STAT2 and ADC1–ADC4 |
| ADDR | I²C address select | Binary input selecting one of eight possible 7-bit addresses (0x28–0x2F) for multi-device bus configuration |
| INT | Fault interrupt output | Open-drain, active-low signal asserting when any unmasked fault (OC/UV/OV/TS) occurs on any channel |
| PGND / GND | Power and analog ground | Separate ground pins - PGND connects to exposed pad for thermal dissipation; GND for analog reference |
Key Features
| Feature | Design Value |
|---|---|
| Quad-channel high-side protection | Four independent 600mA switches with per-channel overcurrent, overtemperature, and OV/UV diagnostics |
| ASIL B-compliant architecture | No external software diagnostics required; built-in fault coverage satisfies ISO 26262 ASIL B requirements |
| Configurable I²C diagnostics | Read real-time status (STAT1/STAT2), ADC values (current/voltage/supply), and maskable interrupt sources |
| Adjustable current limit | Set per channel from 100mA to 600mA using single external resistor; ±8% tolerance ensures robust overload handling |
| Thermal-aware soft-switching | 0.5ms soft-start limits inrush; 0.25ms soft-shutdown suppresses inductive kickback during fault recovery |
| 26V short-to-battery isolation | Withstands transient battery faults without latch-up or damage - critical for automotive 12V/24V environments |
Applications
| Radar Camera Power Management | ADAS Front-Facing Camera Module |
|---|---|
Use Scenario: Power delivery to four coax-fed camera sensors in a front radar/camera fusion ECU. IC Role / Device Role / Timing Role: Quad high-side protector managing independent power domains with synchronized soft-start and fault-isolated shutdown. Use Value: Enables single-chip power sequencing and diagnostics for multi-sensor ADAS stacks, reducing BOM count and PCB area vs discrete solutions. |
Use Scenario: Supplying image sensors and ISP in a compact automotive front camera module operating at -40°C to +125°C. IC Role / Device Role / Timing Role: High-reliability power switch with ASIL B-compliant diagnostics for functional safety validation. Use Value: Provides certified fault coverage (OV/UV/OC/TS per channel) required for ISO 26262 ASIL B camera subsystem certification. |
| Rear-Vision Camera System | Surround-View Camera Hub |
Use Scenario: Powering rear-view camera with reverse-triggered activation and cable fault detection. IC Role / Device Role / Timing Role: Enable-controlled high-side switch with autoretry on short-circuit and differential OV/UV monitoring. Use Value: Detects coax cable shorts or opens before camera startup, preventing false triggers and enabling predictive maintenance. |
Use Scenario: Centralized power management for four surround-view cameras in a vehicle's domain controller. IC Role / Device Role / Timing Role: I²C-configurable quad protector supporting parallel channel operation for >600mA loads. Use Value: Allows dynamic current allocation across cameras via software, optimizing thermal performance and enabling fail-operational redundancy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad high-side camera power protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20087ATPA/VY+ | Same die, identical electrical specs, but packaged in WETQFN (T2044Y+5C) instead of SWTQFN | Higher moisture resistance; preferred for humid or condensing environments | Select MAX20087ATPA/VY+ when IPC/JEDEC MSL-3 handling is required or board-level conformal coating is not used |
| MAX20089ATPA/VY+T | ASIL D-compliant version with extended ADC diagnostics (7 additional measurements) and enhanced fault coverage | Required for ASIL D camera systems; supports higher diagnostic coverage metrics | Choose MAX20089ATPA/VY+T when full ASIL D compliance is mandated and additional ADC channels are utilized |
Compared with MAX20087ATPA/VY+T, the MAX20087ATPA/VY+ offers identical protection functionality in a moisture-resistant package, while MAX20089ATPA/VY+T adds ASIL D capability and expanded ADC diagnostics - making it suitable for higher-integrity camera domains where fault coverage must exceed ASIL B thresholds.
Availability
MAX20087ATPA/VY+T is available at Aetrix Electronics and suitable for automotive ADAS camera modules, radar sensor power supplies, and surround-view systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX20087ATPA/VY+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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving automotive, industrial, communications, and healthcare markets.
The MAX20087ATPA/VY+T belongs to the MAX20086–MAX20089 family of dual/quad camera power protectors, designed specifically for functional-safety-compliant Power-over-Coax (PoC) systems in advanced driver-assistance applications.
FAQ
What is the maximum continuous output current per channel for the MAX20087ATPA/VY+T?
The MAX20087ATPA/VY+T supports up to 600mA continuous output current per channel under specified thermal conditions. This rating assumes proper PCB layout with thermal vias to the exposed pad and operation within the -40°C to +125°C ambient range. Peak current capability reaches 1A for short durations, but sustained operation above 600mA requires paralleling channels with appropriate derating.
Does the MAX20087ATPA/VY+T support ASIL D compliance?
The MAX20087ATPA/VY+T is certified ASIL B compliant out-of-the-box without requiring additional software diagnostics. For ASIL D compliance, the MAX20089ATPA/VY+T variant must be used - it provides extended ADC diagnostics (seven additional measurements) and higher fault coverage metrics required by ISO 26262 for ASIL D camera subsystems.
How is the current limit set on the MAX20087ATPA/VY+T?
The current limit on the MAX20087ATPA/VY+T is set using an external resistor connected between the ISET pin and GND. The relationship is defined as ILIM = 600mA × (RISET / 100kΩ), yielding a programmable range from 100mA to 600mA. The device achieves ±8% accuracy across temperature and process variation, and the ISET pin also supports diagnostics for open/short detection.
What diagnostic data can be read via I²C from the MAX20087ATPA/VY+T?
Through its I²C interface, the MAX20087ATPA/VY+T provides access to real-time status registers (STAT1/STAT2), configuration registers (CONFIG, MASK), and four 8-bit ADC registers (ADC1–ADC4). Depending on the MUX setting, these ADC registers report either per-output current (3mA/LSB), per-output voltage (70mV/LSB), or system supply voltages (VIN/VDD/VISET), enabling comprehensive hardware-level diagnostics.
What is the purpose of the INT pin on the MAX20087ATPA/VY+T?
The INT pin on the MAX20087ATPA/VY+T is an active-low, open-drain interrupt output that asserts whenever any unmasked fault condition occurs - including overcurrent (OC), overvoltage (OV), undervoltage (UV), or thermal shutdown (TS) on any of the four output channels. It requires an external pull-up resistor (≥2kΩ) and allows microcontrollers to respond immediately to power faults without polling.
MAX20087ATPA/VY+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 20-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Current Switch
- Sensing Method:
- -
- Accuracy:
- ±8%
- Voltage - Input:
- 3V ~ 15V
- Current - Output:
- 600mA
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 20-TQFN-EP (4x4)
MAX20087ATPA/VY+T FAQ
1.How can I place an order for MAX20087ATPA/VY+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20087ATPA/VY+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 MAX20087ATPA/VY+T reliable?
The price and inventory of MAX20087ATPA/VY+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20087ATPA/VY+T is usually 5 days.
3.What payment methods are accepted for MAX20087ATPA/VY+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20087ATPA/VY+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20087ATPA/VY+T?
MAX20087ATPA/VY+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20087ATPA/VY+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 MAX20087ATPA/VY+T?
For technical support, including MAX20087ATPA/VY+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20087ATPA/VY+T requirements.
6.How does Aetrix verify that MAX20087ATPA/VY+T is sourced from the original manufacturer or authorized distributors?
All MAX20087ATPA/VY+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 MAX20087ATPA/VY+T meets industry standards.
7.What is the process for return or replacement of MAX20087ATPA/VY+T?
All MAX20087ATPA/VY+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX20087ATPA/VY+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 MAX20087ATPA/VY+T part is unused and in its original packaging.
Return procedure for MAX20087ATPA/VY+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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