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Analog Devices Inc./Maxim Integrated MAX20087ATPC/VY+
- Part No.:
- MAX20087ATPC/VY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Current Regulation/Management
- Package:
- 20-WFQFN Exposed Pad
- Datasheet:
-
MAX20087ATPC/VY+.pdf
- Description:
- IC CURRENT SWITCH 8% 20TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:945
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Product details
Overview
MAX20087ATPC/VY+ from Analog Devices is a quad-channel automotive-grade high-side camera power protector IC with integrated diagnostics and I²C interface. It delivers up to 600mA per channel (4×), supports 3V–15V input, provides ±8% current-limit accuracy, and features ASIL B compliance for safety-critical ADAS camera systems.
For engineers reviewing the MAX20087ATPC/VY+ datasheet, MAX20087ATPC/VY+ pinout, MAX20087ATPC/VY+ application, or MAX20087ATPC/VY+ equivalent, this page delivers verified technical context, real-world diagnostic capabilities (e.g., per-channel ADC current/voltage readings), thermal shutdown behavior, soft-start/soft-shutdown timing, and validated alternative options for Power-over-Coax camera supply designs.
Technical Context
The MAX20087ATPC/VY+ implements four independent high-side NMOS switches with programmable current limiting (100–600mA via external ISET resistor) and autonomous fault response including autoretry on overcurrent. Each channel integrates dedicated overtemperature, overvoltage (short-to-battery), undervoltage (short-to-ground), and open-load detection circuitry.
Its 8-bit ADC supports three multiplexed modes - per-channel output current (3mA/LSB), per-channel output voltage (70mV/LSB), or system supply monitoring (VIN/VDD/VISET) - all accessible via I²C at up to 1.1MHz clock rate. The device operates across -40°C to +125°C ambient and meets AEC-Q100 Grade 0 requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Channels | 4 independent high-side protection switches - enables single-chip power management for quad-camera modules. |
| Max Output Current | 600mA per channel - sufficient to drive typical 12MP automotive image sensors with margin. |
| Current Limit Accuracy | ±8% - ensures predictable short-circuit trip point without calibration overhead in production. |
| Input Voltage Range | 3V to 15V - compatible with 5V, 8V, and 12V camera supply rails used in PoC transceivers. |
| Soft-Start / Soft-Shutdown | 0.5ms ramp-up / 0.25ms ramp-down - suppresses inrush current and minimizes EMI during switching transitions. |
| I²C Interface | Up to 1.1MHz clock, selectable 7-bit address (via ADDR pin), ACK-based error detection - enables robust host communication in noisy automotive environments. |
| Operating Temperature | -40°C to +125°C ambient - qualified for under-hood and front-end camera module placement. |
| Diagnostic Coverage | ASIL B compliant; supports ASIL D with software integration - provides fault status per channel (OC/UV/OV/TS) plus ADC-based measurements for functional safety analysis. |
Pinout & Package
MAX20087ATPC/VY+ uses a 20-pin SWTQFN-EP package (4mm × 4mm, T2044Y+4C), thermally enhanced with exposed pad connected to PGND for efficient heat dissipation in high-current operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Camera supply input | Accepts 3V–15V input; withstands 26V short-to-battery events - isolates upstream DC-DC converter from downstream faults. |
| OUT1–OUT4 | Protected camera supply outputs | Four independent high-side outputs; each delivers up to 600mA with individual current limit and diagnostics. |
| PGND | Power ground | High-current return path; must be tied to exposed pad (EP) for thermal and electrical integrity. |
| VDD | Device logic supply | 3V–5.5V supply for internal circuitry; includes UVLO (2.7V) and OVLO (5.7V) protection. |
| ISET | Current limit setting | Resistor-to-GND sets per-channel ILIM (100–600mA); ±8% accuracy maintained across temperature. |
| EN | Active-high enable | Controls global power-up sequence; rising edge initiates soft-start on enabled channels (CONFIG.EN[4:1]). |
| SDA / SCL | I²C bidirectional data / clock | Supports 1.1MHz operation; open-drain SDA requires external pullup; enables real-time fault readback and configuration. |
| INT | Open-drain interrupt output | Asserts low when unmasked fault occurs (e.g., OC1, UV2, TS3); supports prioritized fault handling in host MCU. |
| ADDR | I²C address select | Connect to GND or VDD to choose between two base addresses (0x28/0x29 write); avoids bus conflicts in multi-device systems. |
Key Features
| Feature | Design Value |
|---|---|
| Per-channel diagnostics | Real-time status bits (OC/UV/OV/TS) + 8-bit ADC readings (current/voltage) per output - eliminates need for external sense resistors or voltage monitors. |
| ASIL B hardware compliance | No additional software diagnostics required for ASIL B; ADC and fault reporting architecture supports ASIL D with host-level validation - reduces functional safety certification effort. |
| Short-to-battery isolation | Withstands 26V on OUTx while IN is at 0V - prevents back-feeding battery into camera supply rail during cable fault conditions. |
| Configurable current limit | 100–600mA range set by single external resistor (RISET = 25kΩ to 100kΩ) - simplifies design reuse across sensor variants with different power needs. |
| Parallel channel operation | Two or more outputs can be paralleled (e.g., OUT1+OUT2) to deliver >600mA with ~10% derating margin - supports higher-power radar/camera hybrids without redesign. |
| Low quiescent current | 3µA shutdown current - preserves battery life in always-on ADAS systems during vehicle sleep mode. |
Applications
| ADAS Front Camera Module | Rearview Camera System |
|---|---|
|
Use Scenario: Single PCB powering four synchronized 8MP image sensors in a surround-view camera ECU. IC Role / Device Role / Timing Role: Quad high-side protector managing independent power sequencing, fault isolation, and real-time current monitoring per sensor rail. Use Value: Enables deterministic startup timing (0.5ms soft-start), prevents single-point failure propagation, and provides diagnostic data for ISO 26262 fault tree analysis. |
Use Scenario: Compact rearview camera module with integrated ISP and MIPI CSI-2 transmitter operating from 8V PoC supply. IC Role / Device Role / Timing Role: High-side switch delivering regulated 3.3V/5V to image sensor and ISP while detecting short-to-ground during connector mating. Use Value: Eliminates need for discrete TVS + fuse + sense resistor stack; reduces BOM count by 7 components per channel. |
| Automotive Radar Transceiver | In-Cabin Driver Monitoring System |
|
Use Scenario: 77GHz radar SoC requiring clean, fault-protected 5V supply with fast transient response. IC Role / Device Role / Timing Role: Low-dropout (110mV @300mA) high-side switch with 0.25ms soft-shutdown to suppress inductive kick during radar sleep/wake cycles. Use Value: Prevents voltage overshoot on radar supply rail during rapid state transitions, improving RF stability and EMI performance. |
Use Scenario: Dual-sensor DMS module (IR + RGB) mounted on A-pillar with constrained thermal envelope. IC Role / Device Role / Timing Role: Thermally managed quad switch with per-channel thermal shutdown (165°C) and junction-to-case θJC = 2°C/W. Use Value: Allows continuous operation at +105°C ambient without derating; exposed pad enables direct thermal coupling to metal housing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-channel automotive power protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20087ATPB/VY+ | Same silicon, WETQFN-EP package (T2044Y+5C); identical electrical specs and pinout but different land pattern and moisture sensitivity level. | Preferred for high-humidity environments or reflow processes requiring MSL3 compliance; same thermal resistance (θJA = 33°C/W). | Select MAX20087ATPB/VY+ when board assembly requires WETQFN moisture sensitivity rating or finer pitch solder joint inspection capability. |
| MAX20086ATPC/VY+ | Dual-channel version (2 outputs); shares identical architecture, diagnostics, and I²C register map but lacks OUT3/OUT4 pins and related STAT2/ADC registers. | Suitable for dual-camera systems (e.g., stereo front-facing); reduces cost and footprint where quad-channel capability is unnecessary. | Choose MAX20086ATPC/VY+ to lower BOM cost and simplify layout when only two protected rails are needed. |
Compared with MAX20087ATPC/VY+, the MAX20087ATPB/VY+ offers identical functionality in a moisture-sensitive WETQFN package ideal for humid environments, while the MAX20086ATPC/VY+ provides a cost-optimized dual-channel variant with shared diagnostics architecture - enabling scalable platform design across mono/dual/quad camera configurations.
Availability
MAX20087ATPC/VY+ is available at Aetrix Electronics and suitable for automotive ADAS camera modules, Power-over-Coax systems, and radar transceiver power supplies requiring stable component supply, AEC-Q100 qualification, and ASIL-compliant diagnostics.
Supply support for MAX20087ATPC/VY+ 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, and communications markets with safety-certified power and signal conditioning solutions.
The MAX20086–MAX20089 family was designed specifically for automotive camera and radar power management, integrating protection, diagnostics, and I²C configurability into compact QFN packages for space-constrained ADAS ECUs.
FAQ
What is the maximum continuous output current per channel for the MAX20087ATPC/VY+?
The MAX20087ATPC/VY+ supports up to 600mA continuous output current per channel under specified thermal conditions (TA ≤ +125°C, θJA = 33°C/W on 4-layer board). This rating assumes proper PCB thermal design with the exposed pad soldered to multiple ground planes. Exceeding 600mA triggers overcurrent limiting with ±8% accuracy, and sustained overload activates thermal shutdown at TJ = 165°C.
How does the MAX20087ATPC/VY+ handle short-to-battery faults on its output channels?
The MAX20087ATPC/VY+ detects short-to-battery (output voltage exceeding VIN + 0.15V) within 1µs and opens the affected high-side switch to isolate the fault. It withstands up to 26V on OUTx while IN is at 0V, preventing back-feeding into the upstream supply. The event sets the corresponding OVx bit in STAT2 and asserts the INT pin if unmapped, enabling immediate host MCU response without external protection components.
Can the MAX20087ATPC/VY+ measure both output current and output voltage using its onboard ADC?
Yes - the MAX20087ATPC/VY+ supports three ADC multiplexer modes via the CONFIG register's MUX[1:0] bits. In mode '00', ADC1–ADC4 return per-channel current (3mA/LSB); in mode '01' (ASIL-compliant versions only), they return per-channel output voltage (70mV/LSB). This dual-mode capability eliminates the need for separate current-sense amplifiers and voltage dividers in camera power designs.
What is the purpose of the ISET pin on the MAX20087ATPC/VY+ and how is it configured?
The ISET pin on the MAX20087ATPC/VY+ sets the per-channel current limit using an external resistor to GND. With RISET = 100kΩ, ILIM = 600mA; scaling linearly down to 100mA at RISET = 25kΩ. The device guarantees ±8% accuracy across -40°C to +125°C. Pulling ISET open defaults to 600mA, while shorting it disables current limiting - making resistor selection a key design decision for fault tolerance and thermal management.
Does the MAX20087ATPC/VY+ support parallel operation of multiple output channels to increase total current capacity?
Yes - the MAX20087ATPC/VY+ allows paralleling of two or more output channels (e.g., OUT1 + OUT2) to deliver higher total current. When paralleled, the combined capacity is approximately N × ILIM with ~10% margin recommended to account for channel-to-channel mismatch in on-resistance and current limit threshold. This feature supports higher-power radar or multi-sensor camera modules without requiring a larger IC or external MOSFETs.
MAX20087ATPC/VY+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 20-WFQFN Exposed Pad
- Packaging:
- Tray
- 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)
MAX20087ATPC/VY+ FAQ
1.How can I place an order for MAX20087ATPC/VY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20087ATPC/VY+ 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 MAX20087ATPC/VY+ reliable?
The price and inventory of MAX20087ATPC/VY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20087ATPC/VY+ is usually 5 days.
3.What payment methods are accepted for MAX20087ATPC/VY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20087ATPC/VY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20087ATPC/VY+?
MAX20087ATPC/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20087ATPC/VY+ 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 MAX20087ATPC/VY+?
For technical support, including MAX20087ATPC/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20087ATPC/VY+ requirements.
6.How does Aetrix verify that MAX20087ATPC/VY+ is sourced from the original manufacturer or authorized distributors?
All MAX20087ATPC/VY+ 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 MAX20087ATPC/VY+ meets industry standards.
7.What is the process for return or replacement of MAX20087ATPC/VY+?
All MAX20087ATPC/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20087ATPC/VY+, 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 MAX20087ATPC/VY+ part is unused and in its original packaging.
Return procedure for MAX20087ATPC/VY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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