Four- to Seven-Input Automotive Power-System Monitor Family

The MAX20480 is a complete ASIL-compliant SoC power-system monitor with up to seven voltage monitor inputs. Each input has programmable OV/UV thresholds of between 2.5% and 10% with ±1% accuracy. Two of the inputs have a separate remote ground-sense input and support DVS through the integrated I2C interface.

The MAX20480 contains a programmable flexible power sequence recorder (FPSR). This recorder stores power-up and power-down timestamps separately, and supports on/off and sleep/standby power sequences. The MAX20480 also contains a programmable challenge/response watchdog, which is accessible through the I2C interface, along with a configurable active-low RESET output.

The MAX20480 improves reliability while significantly reducing system size and component count as compared to separate ICs or discrete components. The MAX20480 meets ASIL D reliability when used with a supervisory controller. The device is designed to operate over the ambient temperature range of -40°C to +125°C.

Applications

* ADAS * Autonomous Driving Processing Systems * Power System Supervision and MCU/SoC Monitoring * Remote Sensor Modules

* Small Solution

* 2.35V to 5.50V Operating Supply Voltage

* Only One External Component Required

* 150µA Operating Current

* 8µA Power-Down Mode

* High Precision

* Selectable 102.5% to 110% OV Monitors

* Selectable 97.5% to 90% UV Monitors

* ±1% Accuracy

* 0.5% Step Size

* ASIL D Compliance

* Highly Integrated

* Five Fixed-Voltage Monitoring Inputs

* Two Differential DVS Tracking-Voltage Monitoring Inputs with Remote-Ground Sense

* Power-Sequencing Recording

* Simple or Challenge/Response Windowed Watchdog

* Fault Recording

* CRC on I2C Interface

* Programmable I2C Address

* OTP Configuration with Error-Correcting Code and Reload Functionality

* Programmable Active-Low RESET Pin

* 16-Pin, Side-Wettable TQFN with Exposed Pad (3mm x 3mm)

* AEC-Q100 Qualified

* -40°C to +125°C Operating Temperature