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TPS3808-Q1

ACTIVE

Automotive, low-quiescent current programmable-delay supervisor

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Drop-in replacement with upgraded functionality to the compared device
NEW TPS3808E-Q1 ACTIVE Automotive, 600nA ultra-low quiescent current supervisor with programmable delay and manual reset Lower quiescent current with more threshold voltage options

TPS3808-Q1

ACTIVE
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Product details

Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 0.405, 1.12, 1.16, 1.4, 1.67, 2.79, 3.07, 4.65, Adjustable Features Manual reset capable, Reset time delay, Separate VDD & sense, Undervoltage monitor only Reset threshold accuracy (%) 0.5, 2 Iq (typ) (mA) 0.0024 Output driver type/reset output Active-low, Open-drain Time delay (ms) 1.25, 20, 300, 1200 Supply voltage (min) (V) 1.65 Supply voltage (max) (V) 6.5 TI functional safety category Functional Safety-Capable Rating Automotive Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 0.405, 1.12, 1.16, 1.4, 1.67, 2.79, 3.07, 4.65, Adjustable Features Manual reset capable, Reset time delay, Separate VDD & sense, Undervoltage monitor only Reset threshold accuracy (%) 0.5, 2 Iq (typ) (mA) 0.0024 Output driver type/reset output Active-low, Open-drain Time delay (ms) 1.25, 20, 300, 1200 Supply voltage (min) (V) 1.65 Supply voltage (max) (V) 6.5 TI functional safety category Functional Safety-Capable Rating Automotive Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8 WSON (DRV) 6 4 mm² 2 x 2
  • Qualified for Automotive Applications
  • Power-On Reset Generator With Adjustable Delay Time: 1.25 ms to 10 s
  • Very Low Quiescent Current: 2.4 µA Typical
  • High Threshold Accuracy: 0.5% Typical
  • Fixed Threshold Voltages for Standard Voltage Rails From 1.2 V to 5 V and Adjustable Voltage Down to 0.4 V Are Available
  • Manual Reset (MR) Input
  • Open-Drain RESET Output
  • Temperature Range: –40°C to +125°C
  • Small SOT-23 Package and WSON Package (TPS3808G01QDRVRQ1 only)
  • Qualified for Automotive Applications
  • Power-On Reset Generator With Adjustable Delay Time: 1.25 ms to 10 s
  • Very Low Quiescent Current: 2.4 µA Typical
  • High Threshold Accuracy: 0.5% Typical
  • Fixed Threshold Voltages for Standard Voltage Rails From 1.2 V to 5 V and Adjustable Voltage Down to 0.4 V Are Available
  • Manual Reset (MR) Input
  • Open-Drain RESET Output
  • Temperature Range: –40°C to +125°C
  • Small SOT-23 Package and WSON Package (TPS3808G01QDRVRQ1 only)

The TPS3808Gxx-Q1 microprocessor supervisory circuits monitor system voltages from 0.4 V to 5 V, asserting an open-drain RESET signal when the SENSE voltage drops below a preset threshold or when the manual reset (MR) pin drops to a logic low. The RESET output remains low for the user-adjustable delay time after the SENSE voltage and MR return above their thresholds.

The TPS3808Gxx-Q1 device uses a precision reference to achieve 0.5% threshold accuracy for VIT ≤ 3.3 V. The reset delay time can be set to 20 ms by disconnecting the CT pin, 300 ms by connecting the CT pin to VDD using a resistor, or can be user-adjusted from 1.25 ms to 10 s by connecting the CT pin to an external capacitor. The TPS3808Gxx-Q1 has a very low typical quiescent current of 2.4 µA, so it is well suited for battery-powered applications. The device is available in a small SOT-23 package (one option available in WSON) and is fully specified over a temperature range of –40°C to +125°C (TJ).

For more information about TI’s voltage supervisor portfolio, visit the Supervisor and Reset IC Overview Page page.

The TPS3808Gxx-Q1 microprocessor supervisory circuits monitor system voltages from 0.4 V to 5 V, asserting an open-drain RESET signal when the SENSE voltage drops below a preset threshold or when the manual reset (MR) pin drops to a logic low. The RESET output remains low for the user-adjustable delay time after the SENSE voltage and MR return above their thresholds.

The TPS3808Gxx-Q1 device uses a precision reference to achieve 0.5% threshold accuracy for VIT ≤ 3.3 V. The reset delay time can be set to 20 ms by disconnecting the CT pin, 300 ms by connecting the CT pin to VDD using a resistor, or can be user-adjusted from 1.25 ms to 10 s by connecting the CT pin to an external capacitor. The TPS3808Gxx-Q1 has a very low typical quiescent current of 2.4 µA, so it is well suited for battery-powered applications. The device is available in a small SOT-23 package (one option available in WSON) and is fully specified over a temperature range of –40°C to +125°C (TJ).

For more information about TI’s voltage supervisor portfolio, visit the Supervisor and Reset IC Overview Page page.
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Technical documentation

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Type Title Date
* Data sheet TPS3808Gxx-Q1 Low-Quiescent-Current Programmable-Delay Supervisory Circuit datasheet (Rev. J) PDF | HTML 13 Jun 2017
Functional safety information TPS3808-Q1 Functional Safety FIT Rate and Failure Mode Distribution 19 Dec 2019
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28 Jun 2019
Design guide Automotive Power Reference Design for Low-Power TDA3x Based Systems (Rev. B) 14 Jun 2017
Design guide Automotive Power Frontend With Cold Crank Operation and EMI Filter Design Guide 30 Nov 2015
Design guide TIDA-00530 Test Results 13 Oct 2015

Design & development

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

Evaluation board

TPS3808G01Q1EVM — TPS3808G01-Q1 automotive voltage supervisor evaluation module

The TPS3808G01Q1EVM is an evaluation modulate (EVM) for the TPS3808G01-Q1 voltage supervisor. The EVM has a supply voltage range from 1.8 V to 6.5 V. It offers input connections for all device input and output pins. Test points are provided to give the user access to an extra ground (...)
User guide: PDF
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Simulation model

TPS3808G01 TINA-TI Transient Reference Design

SBVM030.TSC (208 KB) - TINA-TI Reference Design
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Simulation model

TPS3808G01 TINA-TI Transient Spice Model

SBVM031.ZIP (41 KB) - TINA-TI Spice Model
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Simulation model

TPS3808G01 Unencrypted PSpice Transient Model Package (Rev. B)

SLIM038B.ZIP (81 KB) - PSpice Model
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Bill of materials (BOM)

TIDA-00530 BOM

TIDRI98.PDF (260 KB)
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Bill of materials (BOM)

TIDA-00699 BOM

TIDRJK8.PDF (257 KB)
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CAD/CAE symbol

TIDA-00530 Altium

TIDRI99.ZIP (2344 KB)
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CAD/CAE symbol

TIDA-00699 CAD Files

TIDRJK9.ZIP (626 KB)
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Schematic

TIDA-00530 Schematic

TIDRI97.PDF (684 KB)
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Schematic

TIDA-00699 Schematic

TIDRJK7.PDF (222 KB)
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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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Reference designs

PMP23242 — Microprocessor unit (MPU) discrete automotive power reference design

This design demonstrates a power tree using low-cost discrete voltage regulators and details the specific power up and down sequencing requirements of the different voltage rails of the AM62x-Q1 processor family.
Test report: PDF
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TIDA-080004 — Electronics and LED Driver Reference Design for Augmented Reality Head-Up Displays

This reference design provides an electronics subsystem designed to drive an automotive augmented reality (AR) head-up display (HUD). DLP® technology enables bright, crisp, highly saturated head-up displays that project critical driving information onto the windshield of the car, reducing (...)
Design guide: PDF
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TIDA-01004 — Automotive Camera Module Reference Design with 1MPixel Imager, Bayer Video Output & Power over Coax

The TIDA-01004 reference design is a remote automotive camera module that connects over a high speed serial video interface to a display or machine vision processing system. It uses TIs FPD-Link III SerDes technology to transmit uncompressed MegaPixel video data, bidirectional control signals and (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00530 — Automotive Power Reference Design for Low Power TDA3x Based Systems

This solution was designed to make an integrated, size-optimized power design for ADAS applications using the TDA3x SoC off of an automotive battery input.  By targeting only applications with lower processing needs, we’re able to choose devices and components which are smaller, compared (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00699 — Front End Power Supply Reference Design with Cold Crank Operation, Transient Protection, EMI Filter

This solution was designed to be a broadly applicable automotive off-battery front end power supply for 10-15W systems. There is a focus on EMI/EMC testing and compliance as well to help designers satisfy the regulatory requirements associated with producing an automotive electronic subsystem.
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
SOT-23 (DBV) 6 Ultra Librarian
WSON (DRV) 6 Ultra Librarian
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