O917A132TRGZRQ1 datasheet(2/87 Pages) TI1

Part #	O917A132TRGZRQ1

Description	Power Management Unit (PMU) for Processor

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Manufacturer	TI1 [Texas Instruments]

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TPS65917-Q1

SLVSCO4C – JULY 2015 – REVISED MARCH 2017

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Product Folder Links: TPS65917-Q1

Device Overview

(1)

For all available packages, see the orderable addendum at the end of the data sheet.

The power-sequence controller uses one-time programmable (OTP) memory to control the power

sequences, as well as default configurations such as output voltage and GPIO configurations. The OTP is

factory-programmed to allow start-up without any software required. Most static settings can be changed

from the default through SPI or I2C to configure the device to meet many different system needs. For

example, voltage-scaling registers are used to support dynamic voltage-scaling requirements of

processors.As an additional safety feature, the he OTP also contains a bit-integrity-error detection feature

to stop the power-up sequence if an error is detected, preventing the system from starting in an unknown

state.

The TPS65917-Q1 device also includes an analog-to-digital converter (ADC) to monitor the system state.

The GPADC includes two external channels to monitor any external voltage, as well as internal channels

to measure supply voltage, output current, and die temperature, allowing the processor to monitor the

health of the system. The device offers a watchdog to monitor for software lockup, and includes protection

and diagnostic mechanisms such as short-circuit protection, thermal monitoring, shutdown, and automatic

ADC conversions to detect if a voltage is below a predefined threshold. The PMIC can notify the processor

of these events through the interrupt handler, allowing the processor to take action in response.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TPS65917-Q1

VQFN (48)

7.00 mm × 7.00 mm

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