SLVSF96A January   2020  – February 2021 TPS653850A-Q1 , TPS653852A-Q1


  1. 1Features
  2. 2Applications
  3. 3Description
    1. 3.1 Typical Application Diagram
  4. 4Revision History
  5. 5Device and Documentation Support
    1. 5.1 Documentation Support
      1. 5.1.1 Related Documentation
    2. 5.2 Receiving Notification of Documentation Updates
    3. 5.3 Support Resources
    4. 5.4 Trademarks
    5. 5.5 Electrostatic Discharge Caution
    6. 5.6 Glossary
  6. 6Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information


  • AEC-Q100 Qualified with the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Functional Safety-Compliant
    • Developed for Functional Safety Applications
    • Documentation Available to Aid ISO 26262 System Design up to ASIL D
    • Systematic Capability and Hardware Integrity up to ASIL D
  • Input Voltage Range
    • 7 to 36-V for Initial Battery Power Up
    • 4 to 36-V Full Functionality After Initial Battery Power Up
    • Minimum 2.3 V During Operation After Wake-up
  • Supply Rails (With Internal FETs)
    • 6-V Synchronous Buck-Boost Preregulator
    • 5-V, 285-mA LDO (CAN, Peripherals or ADC REF 1% Accuracy with 20 to 120 mA Load)
    • 3.3-V or 5-V, 350-mA LDO (MCU) TPS653850A-Q1. 3.3-V 350-mA or 5-V 500 mA LDO (MCU) TPS653852A-Q1
    • 2 LDOs Protected for Sensor Supply or Peripherals
      • 120 mA for Sensor Supply 1 (VSOUT1), 100 mA for Sensor Supply 2 (VSOUT2)
      • Configurable Tracking Mode (Tracking Input Pin), or 3.3-V or 5-V Fixed Output Voltage
      • Short-to-Ground and Battery Protection
    • Charge Pump: 6-V Minimum, 11-V Maximum Above Battery Voltage
  • Monitoring and Protection
    • Independent Undervoltage and Overvoltage Monitoring on All Regulator Outputs, Battery Voltage, and Internal Supplies
    • Voltage Monitoring Circuitry, Including Independent Bandgap Reference, Supplied from Separate Battery Voltage Input Pin
    • Self-Check on All Voltage Monitoring (During Power-Up and After Power-Up Initiated by External MCU)
    • All Supplies Protected with Current Limit and Overtemperature Prewarning and Shutdown
  • Microcontroller Interface
    • Open and Close Window or Question-Answer Watchdog Function
    • Monitor for Functional Safety MCU Fault output (PWM or level), MCU Error-Signal Monitor
    • DIAGNOSTIC state for Performing Device Self-Tests and System Diagnostics
    • SAFE State for Device and System Protection upon Detected System Failure
    • Clock Monitor for Internal Oscillator
    • Analog and Logic Built-In Self-Test
    • CRC on Non-Volatile Memory as well as Device and System Configuration Registers and SPI Communications
    • Reset Circuit for MCU
    • Diagnostic Output Pin
  • SPI With CRC on Command Plus Data
  • Error Reporting Through SPI Registers for Errors on System Level and Device Level
  • Enable-Drive Output for Disabling External Power-Stages on Any Detected System Failure
  • Wake-up through IGN Pin (Ignition) or CAN_WU Pin (Transceiver or Other Function)
  • 48-Pin HTSSOP PowerPAD™ IC Package