Overview
The MAX20087ATPA/VY+T, produced by Analog Devices Inc./Maxim Integrated, is a dual/quad camera power protector IC designed to deliver reliable and protected power to camera modules. This IC is part of the MAX20086–MAX20089 series, which offers advanced power protection and diagnostic features. It is particularly suited for applications requiring high fault coverage and compliance with ASIL B and ASIL D standards.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Load Current per Channel | 600 | mA | |||
| Device Supply Voltage | 3 | 5.5 | V | ||
| Camera Supply Voltage | 3 | 15 | V | ||
| Input-to-Output Voltage Drop | At 300mA | 110 | mV | ||
| Current-Limit Accuracy | -8% | +8% | % | ||
| Soft-Start Time | 0.5 | ms | |||
| Soft-Shutdown Time | 0.25 | ms | |||
| Shutdown Current | VEN = 0V, TA = +25°C | 0.3 | µA | ||
| Ambient Temperature Range | -40 | +125 | °C | ||
| Package Type | 20-Pin SWTQFN/WETQFN |
Key Features
- High Current Capability: Delivers up to 600mA load current to each of the four output channels.
- Advanced Protection: Each output is individually protected from short-to-battery, short-to-ground, and overcurrent conditions.
- Diagnostic Capabilities: Includes an enable input and I2C interface to read diagnostic status, with an on-board ADC for current measurement through each switch.
- ASIL Compliance: Supports ASIL B and ASIL D standards with additional diagnostic measurements for high-fault coverage.
- Adjustable Current Limit: Adjustable current limit from 100mA to 600mA.
- Soft-Start and Soft-Shutdown: 0.5ms soft-start and 0.25ms soft-shutdown to limit inrush current and avoid inductive ringing.
- Low Voltage Drop: Input-to-output voltage drop of only 110mV at 300mA.
- Compact Package: Available in small 4mm x 4mm 20-Pin SWTQFN and WETQFN packages.
- Overtemperature Shutdown: Includes overtemperature shutdown and overcurrent limiting on each output channel.
Applications
The MAX20087ATPA/VY+T is designed for various applications, including:
- Power-over-Coax for Radar and Camera Modules: Ideal for powering remote cameras and radar modules in automotive and industrial settings.
- Automotive Systems: Suitable for use in automotive systems requiring high reliability and fault tolerance, such as advanced driver-assistance systems (ADAS).
- Industrial Automation: Used in industrial automation for powering cameras and other sensors in harsh environments.
Q & A
- What is the maximum load current per channel for the MAX20087ATPA/VY+T?
The MAX20087ATPA/VY+T can deliver up to 600mA load current to each of its four output channels.
- What is the operating voltage range for the device supply and camera supply?
The device operates from a 3V to 5.5V supply and supports a camera supply voltage range of 3V to 15V.
- What is the typical input-to-output voltage drop at 300mA?
The input-to-output voltage drop is typically 110mV at 300mA.
- Does the MAX20087ATPA/VY+T support I2C interface?
Yes, the IC includes an I2C interface to read the diagnostic status of the device.
- What are the key protection features of the MAX20087ATPA/VY+T?
Each output channel is individually protected from short-to-battery, short-to-ground, and overcurrent conditions. It also includes overtemperature shutdown and overcurrent limiting on each output channel.
- Is the MAX20087ATPA/VY+T compliant with ASIL standards?
Yes, the MAX20087ATPA/VY+T is compliant with ASIL B and ASIL D standards, providing advanced diagnostic features for high-fault coverage.
- What is the ambient temperature range for the MAX20087ATPA/VY+T?
The IC is designed to operate from -40°C to +125°C ambient temperature.
- What is the package type of the MAX20087ATPA/VY+T?
The IC is available in 20-Pin SWTQFN and WETQFN packages.
- How does the soft-start and soft-shutdown feature work?
The IC features a 0.5ms soft-start and 0.25ms soft-shutdown to limit inrush current and avoid inductive ringing.
- Can the current limit be adjusted on the MAX20087ATPA/VY+T?
Yes, the current limit can be adjusted from 100mA to 600mA.
