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Texas Instruments TPS65919-Q1 Power Management IC (PMIC)

Texas Instruments TPS65919-Q1 Power Management IC (PMIC) integrates four configurable step-down converters with up to 3.5A of output current to power the processor core, memory, I/O, and preregulation of LDOs. The device is AEC-Q100 qualified. The step-down converters are synchronized to an internal 2.2MHz clock to improve the EMC performance of the TPS65919-Q1. The GPIO_3 pin allows the step-down converters to synchronize to an external clock, allowing multiple devices to synchronize to the same clock, which improves system-level EMC performance. The Texas Instruments TPS65919-Q1 also contains four LDOs to power low-current or low-noise domains.

Features

  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results
    • Device Temperature Grade 2 (–40°C to +105°C ambient operating temperature range)
    • Device HBM Classification Level 2
    • Device CDM Classification Level C4B
  • System voltage range from 3.135V to 5.25V
  • Low-power consumption
    • 20µA in off mode
    • 90µA in sleep mode with two SMPSs active
  • Four step-down Switched-Mode Power Supply (SMPS) regulators
    • 0.7 to 3.3V output range in 10 or 20mV steps
    • Two SMPS regulators with 3.5A capability, with the ability to combine into 7A output in dual-phase configuration, with differential remote sensing (output and ground)
    • Two other SMPS regulators with 3A and 1.5A capabilities
    • Dynamic Voltage Scaling (DVS) control and output current measurement in 3.5A and 3A SMPS regulators
    • Hardware and software controlled Eco-mode™ supplying up to 5mA
    • Short-circuit protection
    • Power-Good indication (voltage and overcurrent indication)
    • Internal soft-start for in-rush current limitation
    • Ability to synchronize to external clock between 1.7MHz and 2.7MHz
  • Four Low-Dropout (LDO) linear regulators
    • 0.9 to 3.3V output range in 50mV steps
    • Two with 300mA capability and bypass mode
    • One with 100mA capability and capable of low-noise performance up to 50mA
    • One LDO with 200mA current capability
    • Short-circuit protection
  • 12-bit sigma-delta General-Purpose ADC (GPADC) with 8 input channels (2 external)
  • Thermal monitoring with high-temperature warning and thermal shutdown
  • Power sequence control
    • Configurable power-up and power-down sequences (OTP)
    • Configurable sequences between the SLEEP and ACTIVE state transition (OTP)
    • Three digital output signals can be included in the startup sequence
  • Selectable control interface
    • One SPI for resource configurations and DVS control
    • Two I2C interfaces - one dedicated to DVS control
      • One general-purpose I2C interface for resource configuration and DVS control
      • OTP bit-integrity error detection with options to proceed or hold the power-up sequence and RESET_OUT release
  • 7mm×7mm 48-pin with 0.5mm pitch package

Applications

  • Automotive digital cluster
  • Automotive Advanced Driver Assistance System (ADAS)
  • Automotive navigation systems

Functional Block Diagram

Block Diagram - Texas Instruments TPS65919-Q1 Power Management IC (PMIC)
Publié le: 2018-04-17 | Mis à jour le: 2022-12-02