NEW

TL391B-Q1

ACTIVE

Automotive grade, 36-V, single comparator with alternative pinout

Top

Product details

Parameters

Number of channels (#) 1 Output type Open-collector Propagation delay time (µs) 1 Vs (Max) (V) 36 Vs (Min) (V) 2 Vos (offset voltage @ 25 C) (Max) (mV) 2.5 Iq per channel (Typ) (mA) 0.21 Input bias current (+/-) (Max) (nA) 25 Rail-to-rail Out Rating Automotive Operating temperature range (C) -40 to 125 Features Standard comparator VICR (Max) (V) 34.5 VICR (Min) (V) 0 open-in-new Find other Comparators

Package | Pins | Size

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 open-in-new Find other Comparators

Features

  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range (B and Q versions)
    • Device temperature grade 3: –40°C to 85°C ambient operating temperature range (I version)
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C5
  • NEW TL331B-Q1 and TL391B-Q1
  • Wide range of supply voltage, 2 V to 36 V
  • Low supply-current drain independent of supply voltage: 0.43 mA Typ (B version)
  • Low input bias current, 3.5 nA typ (B version)
  • Low input offset voltage, 0.37 mV typ (B Version)
  • Differential input voltage range equal to maximum-rated supply voltage, ±36 V
  • Input range includes ground
  • TL391B-Q1 provides an alternate pinout
  • Output compatible With TTL, MOS and CMOS
open-in-new Find other Comparators

Description

The TL331B-Q1 and TL391B-Q1 devices are the next generation versions of the industry-standard TL331-Q1 comparator. These next generation devices provide outstanding value for cost-sensitive applications, with features including lower offset voltage, higher supply voltage capability, lower supply current, lower input bias current, lower propagation delay, dedicated ESD protection cells with improved negative input voltage handling. The TL331B-Q1 can drop-in replace both the TL331-Q1 "I" and "Q" versions. The TL391B-Q1 provides an alternate pinout of the TL331B-Q1.

This device consists of a single voltage comparator designed to operate from a single power supply over a wide range of voltages. Operation from dual supplies also is possible if the difference between the two supplies is 2 V to 36 V and VCC is at least 1.5 V more positive than the input common-mode voltage. Current drain is independent of the supply voltage. To achieve wired-AND relationships, one can connect the output to other open-collector outputs.

open-in-new Find other Comparators
Download
Similar products you might be interested in
open-in-new Compare products
Same functionality with different pin-out to the compared device.
NEW TL331B-Q1 ACTIVE Automotive grade, 36-V, single comparator Same functionality with different pinout.

Technical documentation

star = Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Data sheet TL331B-Q1, TL391B-Q1 and TL331-Q1 Automotive Single Comparators datasheet (Rev. F) Jan. 13, 2021

Design & development

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

Hardware development

EVALUATION BOARD Download
document-generic User guide
10
Description

Speed up your op amp prototyping and testing with the DIP-Adapter-EVM, which provides a fast, easy and inexpensive way to interface with small, surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them directly to existing circuits.

The (...)

Features
  • Simplifies prototyping of SMT IC’s
  • Supports 6 common package types
  • Low Cost

Design tools & simulation

SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOL Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide

CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 5 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos