LM2903-Q1

ACTIVE

AEC-Q100, Grade 0 and 1, Automotive High Voltage Dual Differential Comparator

A newer version of this product is available
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Exact equivalent in functionality and parametrics to the compared device:
NEW LM2903B-Q1 ACTIVE Automotive qualified dual differential commodity comparator Pin-to-pin upgrade with increased performance with a wider voltage range.
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Product details

Parameters

Number of channels (#) 2 Output type Open-collector Propagation delay time (µs) 1.3 Vs (Max) (V) 30 Vs (Min) (V) 2 Vos (offset voltage @ 25 C) (Max) (mV) 7 Iq per channel (Typ) (mA) 0.4 Input bias current (+/-) (Max) (nA) 50 Rail-to-rail Out Rating Automotive Operating temperature range (C) -40 to 125, -40 to 150 Features VICR (Max) (V) 30.5 VICR (Min) (V) 0 open-in-new Find other Comparators

Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 SOIC (D) 8 19 mm² 3.91 x 4.9 TSSOP (PW) 8 19 mm² 3 x 6.4 VSSOP (DGK) 8 15 mm² 3 x 4.9 open-in-new Find other Comparators

Features

  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 0: –40°C to 150°C ambient operating temperature range (LM2903E-Q1)
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
    • Device HBM ESD classification level H1C
    • Device CDM ESD classification level C4B
  • Improved 2 kV HBM ESD for "B" device
  • Single supply or dual supplies
  • Low supply-current independent of supply voltage 200 uA Typ Per comparator ("B" Versions)
  • Low input bias current 3.5 nA Typ ("B" device)
  • Low input offset current 0.5 nA Typ ("B" device)
  • Low input offset voltage ±0.37 mV Typ ("B" device)
  • Common-mode input voltage range includes ground
  • Differential input voltage range equal to maximum-rated supply voltage ±36 V
  • Output compatible with TTL, MOS, and CMOS
  • Functional Safety-Capable

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Description

The LM2903B-Q1 device is the next generation version of the industry-standard LM2903-Q1 comparator family. This next generation family provides 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, and improved 2kV ESD performance with drop-in replacement convenience.

All devices consist of two independent voltage comparators that are designed to operate over a wide range of voltages. Operation from dual supplies also is possible as long as the difference between the two supplies is within 2 V to 36 V, and VCC is at least 1.5 V more positive than the input common-mode voltage. The outputs can be connected to other open-collector outputs.

The LM2903-Q1 and LM2903B-Q1 are qualified for the AEC-Q100 Grade 1 temperature range of -40°C to +125°C. The LM2903E-Q1 is Qualified for the Grade 0 extended temperature range of -40°C to +150°C.

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Preproduction samples are available (PM2903BQDGKRQ1). Request now

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 6
Type Title Date
* Datasheet LM2903-Q1 and LM2903B-Q1 Automotive Dual Comparators datasheet (Rev. J) Nov. 18, 2020
Functional safety information LM2903-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA Apr. 07, 2020
Application note Application Design Guidelines for LM339, LM393, TL331 Family Comparators (Rev. A) Feb. 11, 2020
E-book The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Application note Designing Overcurrent protection for TPL7407L Peripheral Driver Nov. 05, 2014
Technical article Op Amps used as Comparators—is it okay? Mar. 14, 2012

Design & development

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Design tools & simulation

SIMULATION MODEL Download
SLCJ011.ZIP (0 KB) - PSpice Model
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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 (...)
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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 (...)
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Reference designs

REFERENCE DESIGNS Download
Automotive 60W Brushless DC (BLDC) Motor Drive
TIDA-00143 This TIDA-00143 reference design is a BLDC motor controller and is designed to operate from a single 12V (nominal) power supply which can vary over a wide range of voltages as found in typical automotive applications.  The board is designed to drive motors in the 60W range, which require (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Automotive High-Voltage Interlock Reference Design
TIDA-01445 — This reference design is a low BOM design that has good coverage of automotive interlock connection diagnosis. In hybrid or electric vehicles (HEV/EVs), battery management systems, traction inverters, DCDC converters, onboard chargers, and other subsystems that operate at high voltages need to have (...)
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CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options
TSSOP (PW) 8 View options
VSSOP (DGK) 8 View options

Ordering & quality

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