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Analog Devices / Maxim Integrated MAX42500 SoC Power System Monitors

Analog Devices MAX42500 SoC Power System Monitors offer up to seven voltage monitor inputs. The inputs provide programmable overvoltage (OV)/undervoltage (UV) thresholds of between 2.5% and 10% with ±1.3% accuracy over the entire temperature range. Two of the inputs have a separate remote ground-sense input and support dynamic voltage scaling (DVS) through the integrated I2C interface. Additionally, the MAX42500 includes a programmable, flexible power sequence recorder (FPSR). The recorder stores power-up and power-down timestamps separately and supports on/off and sleep/standby power sequences.

The ADI MAX42500 also incorporates a programmable challenge/response watchdog, accessible through the I2C interface, and a configurable RESET output. Compared to separate ICs or discrete components, the MAX42500 improves reliability while significantly reducing system size and component count. It is suitable for use in safety functions up to SIL 3. The MAX42500 is developed to operate over a -40°C to +125°C ambient temperature range.

Features

  • Small solution
    • 2.35V to 5.50V operating supply voltage
    • Only one external component is required
    • 150uA operating current
    • 8uA power-down mode
  • High precision
    • Selectable 102.5% to 110% OV monitors
    • Selectable 97.5% to 90% UV monitors
    • Programmable UV and OV thresholds
    • ±1.0% accuracy (-40°C to+85°C)
    • ±1.3% accuracy (-40°C to+125°C)
    • 0.5% step size
  • 16 Pin TQFN with exposed pad (3mm x 3mm)
  • Ongoing certification process to IEC 61508 SIL 3
  • -40°C to +125°C operating temperature
  • 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
    • Cyclic Redundancy Check (CRC) on the I2C interface
    • Programmable 12C address
    • OTP configuration with error-correcting code and reload functionality
    • Programmable Active Low RESET pin

Applications

  • Industrial process control
  • Robotics
  • Remote sensor modules
  • Power system supervision
  • Microcontroller Unit (MCU)/SoC monitoring

Simplified Block Diagram

Block Diagram - Analog Devices / Maxim Integrated MAX42500 SoC Power System Monitors
發佈日期: 2024-04-16 | 更新日期: 2024-05-13