LM2901-Q1, LM2901V-Q1, LM2901AV-Q1
SLCS142F – DECEMBER 2003 – REVISED MAY 2021
LM2901x-Q1 Quadruple Automotive Comparator
1 Features
3 Description
•
•
The LM2901x-Q1 family of devices consists of
four independent voltage comparators, designed to
operate from a single power supply over a wide range
of voltages.
•
•
•
•
•
•
•
•
•
•
Qualified for automotive applications
AEC-Q100 Qualified with the following results:
– Device temperature grade 1: –40°C to 125°C
ambient operating temperature range
– Device HBM ESD classification levels:
• H1B for "AV" version
• H1C for all other versions
– Device CDM ESD classification level C6
Single supply or dual supplies
Low supply-current drain independent of
supply voltage 0.8mA (typical)
Low input bias current 25 nA (typical)
Low input offset current 2 nA (typical)
Low input offset voltage 2mV Typ (typical)
Common-mode input voltage range includes
ground
Differential input voltage range equal to maximumrated supply voltage ±36 V
Low output saturation voltage
Output compatible with TTL, MOS, and CMOS
For single version in 5-pin SOT-23, see the TL331Q1 (SLVS969)
2 Applications
•
•
•
Automotive
– HEV/EV and power train
– Infotainment and cluster
– Body control module
Industrial
Appliances
Operation from dual supplies is possible, provided 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.
The outputs can be connected to other open-collector
outputs to achieve wired-AND relationships.
LM2901V-Q1 supports higher 32 V supply voltage
and LM2901AV-Q1 supports the higher 32 V supply
voltage and lower offset voltage.
Device Information
PART NUMBER
LM2901-Q1
LM2901A-Q1
LM2901AV-Q1
(1)
PACKAGE (1)
BODY SIZE (NOM)
TSSOP (14)
4.40 mm × 5.00 mm
SOIC (14)
3.91 mm × 8.65 mm
For all available packages, see the orderable addendum at
the end of the data sheet.
IN+
OUT
IN–
Copyright © 2016, Texas Instruments Incorporated
Simplified Schematic
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
LM2901-Q1, LM2901V-Q1, LM2901AV-Q1
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SLCS142F – DECEMBER 2003 – REVISED MAY 2021
Table of Contents
1 Features............................................................................1
2 Applications..................................................................... 1
3 Description.......................................................................1
4 Revision History.............................................................. 2
5 Pin Configuration and Functions...................................3
6 Specifications.................................................................. 4
6.1 Absolute Maximum Ratings........................................ 4
6.2 ESD Ratings............................................................... 4
6.3 Recommended Operating Conditions.........................4
6.4 Thermal Information....................................................5
6.5 Electrical Characteristics LM2901x-Q1.......................6
6.6 Switching Characteristics LM2901x-Q1...................... 6
6.7 Typical Characteristics LM2901x-Q1.......................... 7
7 Detailed Description........................................................8
7.1 Overview..................................................................... 8
7.2 Functional Block Diagram........................................... 8
7.3 Feature Description.....................................................8
7.4 Device Functional Modes............................................8
8 Application and Implementation.................................... 9
8.1 Application Information............................................... 9
8.2 Typical Application...................................................... 9
9 Power Supply Recommendations................................11
10 Layout........................................................................... 11
10.1 Layout Guidelines................................................... 11
10.2 Layout Example...................................................... 11
11 Device and Documentation Support..........................12
11.1 Documentation Support.......................................... 12
11.2 Related Links.......................................................... 12
11.3 Trademarks............................................................. 12
11.4 Electrostatic Discharge Caution.............................. 12
11.5 Glossary.................................................................. 12
12 Mechanical, Packaging, and Orderable
Information.................................................................... 12
4 Revision History
Changes from Revision E (January 2015) to Revision F (May 2021)
Page
• Updated Front Page HBM ESD Classifications.................................................................................................. 1
• Updated the numbering format for tables, figures, and cross-references throughout the document..................1
• Added seporate line for 1kV LM2901AV-Q1 HBM in ESD Ratings table............................................................4
• Changed incorrect text in Apps Section Feature Description............................................................................. 8
• Changed incorrect Layout Example pinout....................................................................................................... 11
Changes from Revision D (April 2008) to Revision E (January 2015)
Page
• Added AEC-Q100 results to the Features section .............................................................................................1
• Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and
Implementation section, Power Supply Recommendations section, Layout section, Device and
Documentation Support section, and Mechanical, Packaging, and Orderable Information section. ................. 1
• Added the common-mode voltage note to the VICR parameter in the Electrical Characteristics table............... 6
2
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SLCS142F – DECEMBER 2003 – REVISED MAY 2021
5 Pin Configuration and Functions
1OUT
1
14
3OUT
2OUT
2
13
4OUT
3
12
GND
2IN–
4
11
4IN+
2IN+
5
10
4IN–
1IN–
6
9
3IN+
1IN+
7
8
3IN–
V
CC
Figure 5-1. D and PW Packages
14-Pin SOIC and TSSOP
Top View
Table 5-1. Pin Functions
PIN
I/O
DESCRIPTION
NO.
NAME
1
1OUT
O
Output of comparator 1
2
2OUT
O
Output of comparator 2
3
VCC
—
Supply Pin
4
2IN–
I
5
2IN+
I
Positive input of comparator 2
6
1IN–
I
Negative input of comparator 1
7
1IN+
I
Positive input of comparator 1
8
3IN–
I
Negative input of comparator 3
9
3IN+
I
Positive input of comparator 3
10
4IN–
I
Negative input of comparator 4
11
4IN+
I
Positive input of comparator 4
12
GND
—
Ground
13
4OUT
O
Output of comparator 4
14
3OUT
O
Output of comparator 3
Negative input of comparator 2
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6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)(1)
MIN
MAX
Supply voltage, VCC (2)
UNIT
36
Differential input voltage, VID (3)
±36
Input voltage range, VI (either input)
–0.3
V
36
Output voltage, VO
36
Output current, IO
20
mA
150
°C
150
°C
Duration of output short circuit to
ground(4)
Unlimited
Operating virtual junction temperature, TJ
Storage temperature, Tstg
–65
(1)
Operation outside the Absolute Maximum Ratings may cause permanent device damage. Absolute
Maximum Ratings do not imply functional operation of the device at these or any other conditions beyond
those listed under Recommended Operating Conditions. If used outside the Recommended Operating
Conditions but within the Absolute Maximum Ratings, the device may not be fully functional, and this may
affect device reliability, functionality, performance, and shorten the device lifetime.
(2)
(3)
(4)
All voltage values, except differential voltages, are with respect to network ground.
Differential voltages are at IN+ with respect to IN−.
Short circuits from outputs to VCC can cause excessive heating and eventual destruction.
6.2 ESD Ratings
Human-body model (HBM), per AEC Q100-002(1), (LM2901-Q1, LM2901V-Q1)
V(ESD)
(1)
Electrostatic
Human-body model (HBM), per AEC Q100-002(1), (LM2901AV-Q1 Only)
discharge
Charged-device model (CDM), per AEC Q100-011
MIN
MAX
-2000
2000
-1000
1000
-1000
1000
UNIT
V
AEC Q100-002 indicates that HBM stressing shall be in accordance with the ANSI/ESDA/JEDEC JS-001 specification.
6.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
MIN
VCC
4
Supply voltage
TA
Ambient temperature
IO
Output current (per comparator)
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MAX
UNIT
LM2901-Q1
2
30
LM2901V-Q1, LM2901AV-Q1
2
32
–40
125
°C
0
4
mA
V
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6.4 Thermal Information
LM2901x-Q1
THERMAL
METRIC(1)
D (SOIC)
PW (TSSOP)
14 PINS
14 PINS
UNIT
RθJA
Junction-to-ambient thermal resistance(2)
88.6
119.1
°C/W
RθJC(top)
Junction-to-case (top) thermal resistance
49.1
47.9
°C/W
RθJB
Junction-to-board thermal resistance
43.0
60.9
°C/W
ψJT
Junction-to-top characterization parameter
13.6
5.4
°C/W
ψJB
Junction-to-board characterization parameter
42.7
60.3
°C/W
(1)
(2)
For more information about traditional and new thermal metrics, see the Semicondctor and IC Package Thermal Metrics application
report, SPRA953.
Maximum power dissipation is a function of TJ(max), RθJA, and TA. The maximum allowable power dissipation at any allowable ambient
temperature is PD = (TJ(max) − TA) / RθJA. Operating at the absolute maximum TJ of 150°C can affect reliability.
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6.5 Electrical Characteristics LM2901x-Q1
VCC = 5 V, at specified free-air temperature (unless otherwise noted)
TEST CONDITIONS(1)
PARAMETER
VIO
VIC = VICR(min),
VO = 1.4 V,
VCC = 5 V to
MAX(3)
Input offset voltage
IIB
Input bias current
VO = 1.4 V
VICR
Common-mode inputvoltage range(4)
AVD
Large-signal differentialvoltage amplification
IOH
High-level output current VID = 1 V
VOL
Low-level output voltage VID = –1 V
IOL = 4 mA
IOL
Low-level output current
VID = –1 V
VOL = 1.5 V
VO = 2.5 V, No
load
VCC = 5 V
(3)
(4)
MAX
2
25°C
1
2
Full range
5
50
200
25°C
–25
–250
Full range
0
VCC − 1.5
Full range
0
VCC − 2
25°C
VOH = 5 V
25°C
Full range
VCC =
–500
25°C
VOH = VCC MAX(3)
25
100
0.1
25°C
150
6
nA
V
50
nA
1
μA
400
700
25°C
nA
V/mV
Full range
mV
16
25°C
MAX(3)
mV
4
Full range
VCC = 15 V,
VO = 1.4 V to 11.4 V,
RL ≥ 15 kΩ to VCC
UNIT
7
15
25°C
VO = 1.4 V
(1)
(2)
TYP
Full range
A suffix devices
Input offset current
Supply current (four
comparators)
MIN
25°C
Non A devices
IIO
ICC
TA (2)
0.8
2
1
2.5
mA
All characteristics are measured with zero common-mode input voltage, unless otherwise specified.
Full range (MIN to MAX) is −40°C to 125°C. All characteristics are measured with zero common-mode input voltage, unless otherwise
specified.
VCC MAX = 30 V for non-V devices and 32 V for V-suffix devices.
The voltage at either the input or common mode should not be allowed to negative by more that 0.3 V. The upper end of the
common-mode voltage range is VCC+ – 1.5 V; however, one input can exceed VCC, and the comparator will provide a proper output
state as long as the other input remains in the common-mode range. Either or both inputs can go to 30 V without damage.
6.6 Switching Characteristics LM2901x-Q1
VCC = 5 V, TA = 25°C
PARAMETER
Response time(2)
(1)
(2)
6
TEST CONDITIONS
RL connected to 5 V through 5.1 kΩ,
CL = 15 pF(1)
MIN
TYP
100-mV input step with 5-mV
overdrive
1.3
TTL-level input step
0.3
MAX
UNIT
μs
CL includes probe and jig capacitance.
The response time specified is the interval between the input step function and the instant when the output crosses 1.4 V.
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6.7 Typical Characteristics LM2901x-Q1
1.2
70
-40C
0.8
-40C
0C
60
0C
25C
50
25C
Input Current (nA)
Supply Current (mA)
1.0
70C
85C
0.6
125C
0.4
0.2
70C
40
85C
30
125C
20
10
0.0
0
0
4
8
12
16
20
24
28
32
36
40
Supply Voltage (V)
44
0
4
8
12
Figure 6-1. Supply Current vs Supply Voltage
16
20
24
28
Supply Voltage (V)
C001
32
36
40
44
C001
Figure 6-2. Input Bias Current vs Supply Voltage
10
-40C
0C
Output Voltage (V)
1
25C
0.1
85C
125C
0.01
0.001
0.01
0.1
1
10
Output Current (mA)
100
C001
Figure 6-3. Output Saturation Voltage
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7 Detailed Description
7.1 Overview
The LM2901x-Q1 family of devices is a quad comparator with the ability to operate up to an absolute maximum
of 36 V on the supply pin. This standard device has proven ubiquity and versatility across a wide range of
applications because of the very wide supply voltage range (2 V to 30 V or 32 V), low IQ, and fast response of
the device.
This device is AEC-Q100 qualified and can operate over a wide temperature range (–40°C to 125°C).
The open-collector output allows the user to configure the logic-high voltage of the output (VOH) independent of
VCC and can be used with multiple comparators in wired AND functionality.
7.2 Functional Block Diagram
VCC
80-µA
Current
Regulator
60 µA
10 µA
10 µA
80-µA
IN+
OUT
IN–
GND
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7.3 Feature Description
The LM2901x-Q1 family of devices consists of a PNP Darlington pair input, allowing the device to operate with
very high gain and fast response with minimal input bias current. The input Darlington pair creates a limit on
the input common-mode voltage ability, allowing the LM2901x-Q1 family of devices to accurately function from
ground to VCC – 2 V for the lower voltage input. The higher voltage input may go up to the maximum VCC. This
ability enables a wide input range even when using modern-day supplies of 3.3 V and 5 V.
The output consists of an open collector bipolar transistor. The transistor sinks current when the negative input
voltage is higher than the positive input voltage and the offset voltage. The VOL is resistive and scales with the
output current. See Figure 6-3 in Section 6.7 for the VOL values with respect to the output current.
The special pinout of this device separates input pins from the output pins to reduce parasitic coupling between
input and output.
7.4 Device Functional Modes
7.4.1 Voltage Comparison
The LM2901x-Q1 family of devices operates solely as a voltage comparator, comparing the differential voltage
between the positive and negative pins and outputs a logic low or high impedance (logic high with pullup) based
on the input differential polarity.
8
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8 Application and Implementation
Note
Information in the following applications sections is not part of the TI component specification, and
TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining
suitability of components for their purposes. Customers should validate and test their design
implementation to confirm system functionality.
8.1 Application Information
The LM2901x-Q1 family of devices is typically used to compare a single signal to a reference or two signals
against each other. Many users take advantage of the open-drain output to drive the comparison logic output to
a logic voltage level to an MCU or logic device. The wide supply range and high voltage capability makes the
LM2901x-Q1 family of devices optimal for level shifting to a higher or lower voltage.
8.2 Typical Application
VLOGIC
VSUP
VxIN+
RPULLUP
+
RPULLUP
VxIN+
½ LM2901x-Q1
VREF
VLOGIC
VSUP
½ LM2901x-Q1
VxIN–
–
–
CL
CL
Copyright © 2016, Texas Instruments Incorporated
Figure 8-1. Single-Ended and Differential Comparator Configurations
8.2.1 Design Requirements
For this design example, use the parameters listed in Table 8-1 as the input parameters.
Table 8-1. Design Parameters
PARAMETER
EXAMPLE VALUE
Input voltage range
0 V to VSUP – 1.5 V
Supply voltage
2 V to 36 V
Logic supply voltage
2 V to 36 V
Output current (RPULLUP)
1 µA to 20 mA
Input overdrive voltage
100 mV
Reference voltage
2.5 V
Load capacitance (CL)
15 pF
8.2.2 Detailed Design Procedure
8.2.2.1 Input Voltage Range
When selecting the input voltage range, the input common-mode voltage range (VICR) must be considered. If
temperature operation is above or below 25°C the VICR can range from 0 V to VCC – 2 V. The VICR range limits
the input voltage range to as high as VCC – 2 V and as low as 0 V. Operation outside of this range can yield
incorrect comparisons.
The following lists some input voltage scenarios and the resulting outcomes:
•
When both IN– and IN+ are both within the common-mode range:
– If IN– is higher than IN+ and the offset voltage, then the output is low and the output transistor is sinking
current.
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– If IN– is lower than IN+ and the offset voltage, then the output is in high impedance and the output
transistor is not conducting.
When IN– is higher than common-mode and IN+ is within common-mode, the output is low and the output
transistor is sinking current.
When IN+ is higher than common-mode and IN– is within common-mode, then the output is in high
impedance and the output transistor is not conducting.
When IN– and IN+ are both higher than common-mode, then the output is low and the output transistor is
sinking current.
•
•
•
8.2.2.2 Minimum Overdrive Voltage
The overdrive voltage is the differential voltage produced between the positive and negative inputs of the
comparator over the offset voltage (VIO). To make an accurate comparison the overdrive voltage (VOD) must
be higher than the input offset voltage (VIO). The overdrive voltage can also determine the response time of
the comparator, with the response time decreasing as the overdrive increases. Figure 8-2 and Figure 8-3 show
positive and negative response times with respect to overdrive voltage.
8.2.2.3 Output and Drive Current
Output current is determined by the load or pullup resistance and logic or pullup voltage. The output current
produces an output low voltage (VOL) from the comparator. In which VOL is proportional to the output current.
Use Figure 6-3 to determine VOL based on the output current.
The output current can also effect the transient response. See Section 8.2.2.4 for more information.
8.2.2.4 Response Time
The transient response can be determined by the load capacitance (CL), load or pullup resistance (RPULLUP), and
equivalent collector-emitter resistance (RCE).
Use Equation 1 and Equation 2 to calculate the approximate values of the rise time (tr) and fall time (tf).
tP ≈ RPULLUP × CL
(1)
tN ≈ RCE × CL
(2)
To find the value of RCE, use the slope of Figure 6-3 in the linear region at the desired temperature, or divide VOL
by IO.
8.2.3 Application Curves
The following curves were generated with 5 V on VCC and VLOGIC, RPULLUP = 5.1 kΩ, and 50-pF scope probe.
6
6
5
20mV OD
5
4
100mV OD
4
Output Voltage (V)
Output Voltage (V)
5mV OD
3
2
1
0
3
2
1
5mV OD
0
20mV OD
100mV OD
±1
±1
0.0
0.5
1.0
1.5
Time (us)
2.0
2.5
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0.5
1.0
1.5
Time (us)
C001
Figure 8-2. Response Time for Various Overdrives
Negative Transition
10
0.0
2.0
2.5
C001
Figure 8-3. Response Time for Various Overdrives
Positive Transition
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9 Power Supply Recommendations
For fast response and comparison applications with noisy or AC inputs, TI recommends using a bypass
capacitor on the supply pin to reject any variation on the supply voltage. This variation can take away from
some of the input common mode range of the comparator and create an inaccurate comparison.
10 Layout
10.1 Layout Guidelines
For accurate comparator applications without hysteresis, maintaining a stable power supply with minimized noise
and glitches, which can affect the high-level input common-mode voltage range, is important. To achieve a stable
power supply, place a bypass capacitor between the positive and negative (if available) supply voltage and
ground. If a negative supply is not being used, do not put a capacitor between the GND pin of the IC and system
ground.
10.2 Layout Example
Ground
Bypass
Capacitor
1OUT
2OUT
VCC
2IN–
2IN+
1IN–
1IN+
0.1 μF
Positive Supply
1
2
14 3OUT
13 4OUT
3
12 GND
4
5
6
7
11 4IN+
10 4IN–
9 3IN+
8 3IN–
Negative Supply or Ground
Only needed
for dual power
0.1 μF
supplies
Ground
Figure 10-1. LM2901x-Q1 Layout Example
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11 Device and Documentation Support
11.1 Documentation Support
11.1.1 Related Documentation
For related documentation, see the following:
TL331-Q1 Single Differential Comparator, SLVS969
11.2 Related Links
The table below lists quick access links. Categories include technical documents, support and community
resources, tools and software, and quick access to sample or buy.
Table 11-1. Related Links
PARTS
PRODUCT FOLDER
SAMPLE & BUY
TECHNICAL
DOCUMENTS
TOOLS &
SOFTWARE
SUPPORT &
COMMUNITY
LM2901-Q1
Click here
Click here
Click here
Click here
Click here
LM2901V-Q1
Click here
Click here
Click here
Click here
Click here
LM2901AV-Q1
Click here
Click here
Click here
Click here
Click here
LM2901B-Q1
Click here
Click here
Click here
Click here
Click here
11.3 Trademarks
All trademarks are the property of their respective owners.
11.4 Electrostatic Discharge Caution
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled
with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may
be more susceptible to damage because very small parametric changes could cause the device not to meet its published
specifications.
11.5 Glossary
TI Glossary
This glossary lists and explains terms, acronyms, and definitions.
12 Mechanical, Packaging, and Orderable Information
The following pages include mechanical, packaging, and orderable information. This information is the most
current data available for the designated devices. This data is subject to change without notice and revision of
this document. For browser-based versions of this data sheet, refer to the left-hand navigation.
12
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PACKAGE OPTION ADDENDUM
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21-Apr-2022
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
(4/5)
(6)
LM2901AVQDRG4Q1
ACTIVE
SOIC
D
14
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
2901AVQ
LM2901AVQDRQ1
ACTIVE
SOIC
D
14
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
2901AVQ
LM2901AVQPWRG4Q1
ACTIVE
TSSOP
PW
14
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
2901AVQ
LM2901AVQPWRQ1
ACTIVE
TSSOP
PW
14
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
2901AVQ
LM2901QDRG4Q1
ACTIVE
SOIC
D
14
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
2901Q1
LM2901QDRQ1
ACTIVE
SOIC
D
14
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
2901Q1
LM2901QPWRG4Q1
ACTIVE
TSSOP
PW
14
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
2901Q1
LM2901QPWRQ1
ACTIVE
TSSOP
PW
14
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
2901Q1
LM2901VQDRG4Q1
ACTIVE
SOIC
D
14
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
2901VQ1
LM2901VQDRQ1
ACTIVE
SOIC
D
14
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
2901VQ1
LM2901VQPWRG4Q1
ACTIVE
TSSOP
PW
14
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
2901VQ
LM2901VQPWRQ1
ACTIVE
TSSOP
PW
14
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
2901VQ
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of
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