TI O917A133TRGZRQ1

The TPS65917-Q1 PMIC integrates five configurable buck converters with up to 3.5A output current to power processor cores, memory, I/O, and pre-regulation circuits via LDOs. The device is AEC-Q100 qualified. The buck converters are synchronized to a 2.2MHz internal clock to enhance device EMC performance. The GPIO_3 pin allows the buck converters to synchronize with an external clock, enabling multiple devices to synchronize to the same clock for improved system-level EMC performance. The device also includes five LDOs for powering low-current or low-noise domains.

The power sequencing controller uses one-time programmable (OTP) memory to control the power sequence, along with default configurations such as output voltage and GPIO settings. The OTP is factory-programmed, enabling startup without software. Most default static settings can be modified via SPI or I2C to configure the device for a variety of system requirements. For example, voltage adjustment registers support the processor's dynamic voltage scaling requirements. As an additional safety feature, the OTP includes bit integrity error detection that halts the power-up sequence upon error detection, preventing the system from starting in an unknown state.

The TPS65917-Q1 device also features an ADC for monitoring system status. The GPADC includes two external channels for monitoring all external voltages, plus multiple internal channels for measuring supply voltages, output currents, and die temperature, allowing the processor to monitor system health. The device provides a watchdog to monitor software lockup conditions and offers protection and diagnostic mechanisms such as short-circuit protection, thermal monitoring, shutdown, and automatic ADC conversions to detect voltages falling below predefined thresholds. The PMIC can report these events to the processor via an interrupt handler, enabling the processor to take appropriate responsive action.

• Automotive-qualified
  • AEC-Q100 qualified with the following results:
    • Device temperature Grade 2: ambient operating temperature range of -40°C to +105°C
    • Device HBM classification level 2
    • Device CDM classification level C4B
• System voltage range: 3.135V to 5.25V
• Low power consumption:
  • 20μA in power-down mode
  • 90μA in sleep mode (two SMPS active)
• Five step-down SMPS regulators:
  • Output voltage range: 0.7V to 3.3V (in 10mV or 20mV steps)
  • Two SMPS regulators with 3.5A current capability, 7A output in dual-phase configuration, and differential remote sensing (output and ground)
  • Three additional SMPS regulators with 3A, 2A, and 1.5A current capability respectively
  • 3.5A and 3A SMPS regulators with DVS control and output current measurement
  • Hardware- and software-controlled Eco-mode™ up to 5mA
  • Short-circuit protection
  • Power-good indication (voltage and overcurrent indication)
  • Internal soft-start for inrush current limiting
  • External clock synchronization in the range of 1.7MHz to 2.7MHz
• Five LDO linear regulators:
  • Output voltage range: 0.9V to 3.3V (in 50mV steps)
  • Two regulators with 300mA current capability and bypass mode
  • One regulator with 100mA current capability and low-noise performance up to 50mA
  • Two additional LDOs with 200mA current capability
  • Short-circuit protection
• 12-bit ΣΔ GPADC with 8 input channels (2 external)
• Temperature monitoring with high-temperature alarm and thermal shutdown
• Power sequence control:
  • Configurable power-up and power-down sequences (OTP)
  • Configurable sequences between sleep and active state transitions (OTP)
• Three digital output signals assignable to the startup sequence
• Selectable control interfaces:
  • One SPI for resource configuration and DVS control
  • Two I2C interfaces:
    • One dedicated to DVS control
    • One general-purpose I2C for resource configuration and DVS control
• OTP bit integrity error detection with run or hold power-up sequence and RESET_OUT release options
• Package options:
  • 7mm × 7mm 48-pin VQFN, 0.5mm pitch

• Automotive digital cluster
• Automotive advanced driver assistance systems (ADAS)
• Automotive navigation systems