1 Features

? Qualified for automotive applications

? AEC-Q100 qualified with the following results:

– Device temperature grade 1: –40°C to +125°C

ambient operating temperature

– Device temperature grade 0: –40°C to +150°C

ambient operating temperature

– Device HBM ESD classification level 2

– Device CDM ESD classification level C4B

? Functional Safety-Compliant (targets, confirmed on

device release)

– 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

– 5 to 36V for initial power up

– 3.5 to 36V full functionality after initial power up,

limited operation to 2.3V

? Output Supply Rails

– Synchronous buck-boost preregulator with

configurable spread-spectrum, 4.3V, 5 V, 6V

or 6.8V and low IQ mode with the following

options:

? 2.8A in buck mode (option 0 variant)

? 1.5A in buck mode (option 1 variant)

– Four LDOs: 1.0V to 1.8V in 50mV steps,

2.5 V, 3.0V, 3.3V, 5V, bypass or voltage

monitor mode. Each LDO with independent

configurable current limit.

? LDO1 and LDO2: Low IQ, up to 600mA

? LDO3 and LDO4: low noise, low IQ, 1%

accuracy, up to 225mA

– Two protected LDOs for sensor or peripheral

supplies, PLDO1 and PLDO2

? Configurable for tracking mode or fixed

output/VMON mode configurable for 1.0V to

1.8V in 50mV steps, 2.5V, 3.0V, 3.3V or 5V

up to 200mA

? Short-to-chassis (–2V) and supply (+36V)

protection

? Power sequence control:

– Configurable power-up and down sequences

(NVM default including output voltages)

– Output rails, external voltage monitor and

external enable signals can be included

? Monitoring, protection and diagnostics

– Undervoltage and overvoltage monitoring on all

regulator outputs, battery voltage, and internal

supplies

– Two external voltage monitors (pins)

– All regulator outputs protected with independent

current limit

– All regulators protected with independent

overtemperature prewarning and shutdown

– Watchdog: configurable for open and close

window or question-answer

– Error signal monitor (ESM) for monitoring MCU

error output (PWM and level modes)

– SAFE state for device and system protection

– Clock monitor for internal oscillators

– Analog and logic built-in self-test (BIST)

– CRC on non-volatile memory (NVM), device

configuration registers, and SPI communication

– Diagnostic output pin: multiplexes analog and

digital signals to MCU ADC and input

? Compare module: 2 channels configurable as

general purpose comparators or up to 4 channels

of voltage monitoring

? Timer (low IQ) for wake-up and measurement,

64μs to 203.6 days

? SPI for configuration, status and error reporting

? Reset output (NRST), two configurable safing

outputs (SAFE_OUTx) for system safe state on

detected faults interrupt output (NINT), and power

good output (PGOOD)

? Two configurable wake-up pins (WAKEx)

? 48-Pin HTSSOP PowerPAD? IC package

2 Applications

? Safety-Relevant Automotive Applications

3 Description

The TPS65386x-Q1 device is a multirail power

supply designed to supply microcontrollers, sensors,

transceivers and peripherals in safety relevant

applications.