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TPS38700S-Q1

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Automotive power-supply sequencer with I²C support for up to six-channels

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Data sheet

TPS38700S-Q1

ACTIVE
Data sheet Order now

Product details

Supply voltage (min) (V) 2 Number of supplies monitored 6 Supply voltage (max) (V) 5.5 Iq (typ) (mA) 0.05 Rating Automotive Operating temperature range (°C) -40 to 125
Supply voltage (min) (V) 2 Number of supplies monitored 6 Supply voltage (max) (V) 5.5 Iq (typ) (mA) 0.05 Rating Automotive Operating temperature range (°C) -40 to 125
VQFN (RGE) 24 16 mm² 4 x 4
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C
  • Sequencing for state-of-the-art SoCs
    • Capable of sequencing up to 6 power rails
    • Power up/down timing sequence programmable via I2C
      • 125 us to 64 ms (in 125 us steps)
      • 500 us to 25 ms (in 500 us steps)
  • System Robustness
    • Active-low open-drain NIRQ to latch system into safe state during operation error
    • Connect with a multichannel supervisor like the TPS389006 -Q1 with Sync pin for full voltage monitoring & sequencing situations
    • Battery back-up function for diagnostic error reporting during power out events
    • Device thermal shutdown in high temperature environments
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C
  • Sequencing for state-of-the-art SoCs
    • Capable of sequencing up to 6 power rails
    • Power up/down timing sequence programmable via I2C
      • 125 us to 64 ms (in 125 us steps)
      • 500 us to 25 ms (in 500 us steps)
  • System Robustness
    • Active-low open-drain NIRQ to latch system into safe state during operation error
    • Connect with a multichannel supervisor like the TPS389006 -Q1 with Sync pin for full voltage monitoring & sequencing situations
    • Battery back-up function for diagnostic error reporting during power out events
    • Device thermal shutdown in high temperature environments

The TPS38700S-Q1 device is an integrated multichannel voltage sequencer with a window watchdog and I 2C programmable available in a 24-pin 4 mm x 4 mm VQFN package.

This multichannel voltage sequencer is an excellent choice for systems that require precise power up and/or power down sequencing and can be interfaced with multichannel voltage supervisors. The device defaults to preprogrammed OTP options but the I 2C can reprogram the power up and power down sequence, watchdog settings, and sequence timing options if needed.

Flexible and programmable voltage rail sequencing capabilities, low quiescent current, and small footprint allow this device to meet most application requirements.

SYNC on the TPS38700S-Q1 allows designers to have more control over how their system powers up. The TPS38700S-Q1 acheives this by only firing the following enable signal when the current rail has powered up to an acceptable level with the use of the SYNC signal. In addition TPS38700S-Q1 allows for custom delay options. TPS38700S-Q1 is designed to be used with the TPS389006 -Q1.

The TPS38700S-Q1 device is an integrated multichannel voltage sequencer with a window watchdog and I 2C programmable available in a 24-pin 4 mm x 4 mm VQFN package.

This multichannel voltage sequencer is an excellent choice for systems that require precise power up and/or power down sequencing and can be interfaced with multichannel voltage supervisors. The device defaults to preprogrammed OTP options but the I 2C can reprogram the power up and power down sequence, watchdog settings, and sequence timing options if needed.

Flexible and programmable voltage rail sequencing capabilities, low quiescent current, and small footprint allow this device to meet most application requirements.

SYNC on the TPS38700S-Q1 allows designers to have more control over how their system powers up. The TPS38700S-Q1 acheives this by only firing the following enable signal when the current rail has powered up to an acceptable level with the use of the SYNC signal. In addition TPS38700S-Q1 allows for custom delay options. TPS38700S-Q1 is designed to be used with the TPS389006 -Q1.
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* Data sheet TPS38700S-Q1 Power-Supply Sequencer with I2C Support for Up to 6 Channels, 6 GPOs, and SYNC datasheet PDF | HTML 13 Jul 2023

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS38700Q1EVM — TPS38700 evaluation module for power-supply sequencer with I²C support for up to 12 channels

The TPS38700 evaluation module (EVM) is a platform for evaluating the TPS38700, which is an integrated multichannel voltage sequencer with a window watchdog. TPS38700 is inter-integrated circuit (I2C) programmable and available in a 24-pin very thin quad flatpack no-lead (VQFN) package.

(...)

User guide: PDF | HTML
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Application software & framework

FUSION_MFR_GUI — Fusion Digital Power Manufacturing Tool

The Fusion Digital Power Manufacturing Tool (aka MFR GUI) is a Graphical User Interface used to download firmware, upgrade firmware, configure, calibrate and test .

The MFR GUI supports the same devices as Fusion Digital Power Designer software.  This tool is typically used in manufacturing (...)

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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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