TS391, TS391A
Datasheet
Low-power single voltage comparator
Features
•
•
SOT23-5
DFN8 2x2
•
•
•
•
•
Wide single supply voltage range or dual supplies 2 V to 36 V or ± 1 V to ± 18 V
Very low supply current (0.2 mA) independent of supply voltage
(1 mW / comparator at 5 V)
Low input bias current: 25 nA typ.
Low input offset current: ± 5 nA typ.
Low input offset voltage: ± 2 mV max. for TS391A
Input common-mode voltage range includes ground
Low output saturation voltage: 250 mV typ. (Io= 4 mA)
•
•
Differential input voltage range equal to the supply voltage
TTL, DTL, ECL, CMOS compatible outputs
Description
These devices consist of a low-power voltage comparator designed specifically to
operate from a single supply over a wide range of voltages. Operation from split
power supplies is also possible.
These comparators also have a unique characteristic where the input common-mode
voltage range includes ground, even though operated from a single power supply
voltage.
Maturity status link
TS391, TS391A
DS1551 - Rev 10 - January 2021
For further information contact your local STMicroelectronics sales office.
www.st.com
TS391, TS391A
Schematic diagram
1
Schematic diagram
Figure 1. Schematic diagram
VCC
3.5 µA
100 µA
Non-inverting
input
VCC
VCC
3.5 µA
100 µA
VO
Inverting
input
VCC
DS1551 - Rev 10
page 2/16
TS391, TS391A
Package pin connections
2
Package pin connections
Figure 2. Pin connections (top view)
TS391, TS391A
OUT
1
VCC-
2
IN-
3
TS391R
5
VCC+
4
IN-
1
VCC-
2
IN+
3
IN+
SOT23-5
5
VCC+
4
OUT
SOT23-5
TS391
1
8
E+
2
7
VCC+
E-
3
6
Out
VCC-
4
5
DFN8 2x2
DS1551 - Rev 10
page 3/16
TS391, TS391A
Absolute maximum ratings and operating conditions
3
Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings (AMR)
Symbol
Parameter
VCC
Supply voltage
Vid
Differential input voltage
Vi
Input voltage
Vo
Output voltage (1)
Tj
Unit
±18 or 36
±36
-0.3 to 36
V
36
Output short-circuit to ground (2)
Infinite
Maximum junction temperature
150
Tstg
Storage temperature range
Rthja
Thermal resistance junction to ambient (3)
ESD
Value
-65 to 150
SOT23-5
250
DFN8 2x2
57
Human body model (HBM) (4)
1500
Machine model (MM) (5)
100
Charged device model (CDM) (6)
1000
°C
°C/W
V
1. Output voltage can be set up to 36 V even if the VCC is lower.
2. Short-circuits from the output to VCC + can cause excessive heating and potential destruction. The maximum output current
is approximately 20 mA independent of the magnitude of VCC +.
3. Short-circuits can cause excessive heating. These values are typical.
4. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a 1.5 kΩ resistor
between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating.
5. Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between two pins of the
device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of connected pin combinations
while the other pins are floating.
6. Charged device model: all pins and package are charged together to the specified voltage and then discharged directly to
ground through only one pin. This is done for all pins.
Table 2. Operating conditions
Symbol
Parameter
VCC
Supply voltage
Vicm
Input common mode voltage range (1)
Toper
Operating free-air temperature range
Value
Unit
2 to 36 or ±1 to ±18
Tamb = 25 °C
Tmin ≤ Tamb ≤ Tmax
0 to (VCC +) - 1.5
V
0 to (VCC +) - 2
-40 to 125
°C
1. The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3 V. The
upper end of the common-mode voltage range is (VCC +) – 1.5 V, but either or both inputs can go to 30 V without damage.
DS1551 - Rev 10
page 4/16
TS391, TS391A
Electrical characteristics
4
Electrical characteristics
Table 3. VCC + = 5 V, VCC - = 0 V, Tamb = 25 °C (unless otherwise specified)
Symbol
Parameter and test conditions
TS391
Vio
TS391A
TS391
Iib
TS391A
Iio
AVD
ICC
Min.
Input offset voltage
1
5
1
Input offset voltage, Tmin ≤ Tamb ≤ Tmax
1.5
mV
2
Input bias current
25
Input bias current, Tmin ≤ Tamb ≤ Tmax
250
400
Input bias current (2)
25
Input bias current, Tmin ≤ Tamb ≤ Tmax
150
250
Input offset current
5
Input offset current, Tmin ≤ Tamb ≤ Tmax
nA
50
150
Large signal voltage gain, (VCC +) = 15 V, RL=15 kΩ, Vο = 1 tο 11 V
50
200
V/mV
Supply current (VCC +) = 5 V, no load
0.2
0.5
Supply current (VCC +) = 30 V, no load
0.5
1.25
mA
Isink
Output sink current, Vid = -1 V, Vo = 1.5 V
VOL
Low level output voltage, Vid = 1 V, VCC + = Vo = 30 V
IOH
High level output current, Vid = 1 V, VCC + = Vo = 30 V
Small signal response time, RL = 5.1 kΩ to (VCC + )
Unit
9
Input offset voltage (1)
Differential input voltage (3)
trel
Max.
Input offset voltage, Tmin ≤ Tamb ≤ Tmax
Vid
tre
Typ.
VCC +
6
(4)
Large signal response time, Vi = TTL, Vref = 1.4 V, RL = 5.1 kΩ to
VCC +
16
250
V
mA
400
700
0.1
mV
nA
1
µA
1.3
µs
300
ns
1. At the output switch point, Vo ≈ 1.4 V, RS = 0 Ω with (VCC +) from 5 V to 30 V, and over the full input
common-mode range (0 V to (VCC +) – 1.5 V).
2. The direction of the input current is out of the IC due to the PNP input stage. This current is essentially
constant, independent of the state of the output, so there is no load charge on the reference of input lines.
3. Positive excursions of the input voltage may exceed the power supply level. As long as the other voltage
remains within the common-mode range, the comparator will provide a proper output state. The low input
voltage state must not be less than –0.3 V (or 0.3 V below the negative power supply, if used)
4. The response time specified is for a 100 mV input step with 5 mV overdrive. For larger overdrive signals,
300 ns can be obtained.
DS1551 - Rev 10
page 5/16
TS391, TS391A
Electrical characteristic curves
5
Electrical characteristic curves
Figure 4. Response time for various input overdrives negative transition
Figure 5. Input current vs. supply voltage
Figure 6. Response time for various input overdrives positive transition
Input
voltage (mV)
Output
voltage (V)
Figure 3. Supply current vs. supply voltage
Vi = 0V
9
Tam b = -55˚C
R i = 10 Ω
Output
voltage (V)
60
Tam b = 0˚C
Tam b = +25˚C
40
20
Input
voltage (mV)
INPUT CURRENT (nA)
80
Tam b = +125˚C
Tam b = +70˚C
0
10
20
30
40
SUPPLY VOLTAGE (V)
S ATUR AT ION VOLTAGE (V)
Figure 7. Output saturation voltage vs. output current
10
1
10
0
10
-1
10
-2
10
-3
Out of saturation
Tam b = +125˚C
Tam b = -55˚C
Tam b = +25˚C
10
-2
10
-1
10
0
10
1
10
2
OUTPUT SINK CURRENT (mA)
DS1551 - Rev 10
page 6/16
TS391, TS391A
Package information
6
Package information
In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK packages,
depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product
status are available at: www.st.com. ECOPACK is an ST trademark.
DS1551 - Rev 10
page 7/16
TS391, TS391A
SOT23-5 package information
6.1
SOT23-5 package information
Figure 8. SOT23-5 package outline
Table 4. SOT23-5 mechanical data
Dimensions
Millimeters
Ref.
A
Min.
Typ.
Max.
Min.
Typ.
Max.
0.90
1.20
1.45
0.035
0.047
0.057
A1
DS1551 - Rev 10
Inches
0.15
0.006
A2
0.90
1.05
1.30
0.035
0.041
0.051
B
0.35
0.40
0.50
0.014
0.016
0.020
C
0.09
0.15
0.20
0.004
0.006
0.008
D
2.80
2.90
3.00
0.110
0.114
0.118
D1
1.90
0.075
e
0.95
0.037
E
2.60
2.80
3.00
0.102
0.110
0.118
F
1.50
1.60
1.75
0.059
0.063
0.069
L
0.10
0.35
0.60
0.004
0.014
0.024
K
0 degrees
10 degrees
0 degrees
10 degrees
page 8/16
TS391, TS391A
DFN8 2 x 2 package information
6.2
DFN8 2 x 2 package information
Figure 9. DFN8 2 x 2 package outline
Table 5. DFN8 2 x 2 mechanical data
Dimensions
Millimeters
Ref.
A
Min.
Typ.
Max.
Min.
Typ.
Max.
0.51
0.55
0.60
0.020
0.022
0.024
A1
0.05
A3
0.002
0.15
0.006
b
0.18
0.25
0.30
0.007
0.010
0.012
D
1.85
2.00
2.15
0.073
0.079
0.085
D2
1.45
1.60
1.70
0.057
0.063
0.067
E
1.85
2.00
2.15
0.073
0.079
0.085
E2
0.75
0.90
1.00
0.030
0.035
0.039
e
L
ddd
DS1551 - Rev 10
Inches
0.50
0.225
0.325
0.020
0.425
0.08
0.009
0.013
0.017
0.003
page 9/16
TS391, TS391A
DFN8 2 x 2 package information
Figure 10. DFN8 2 x 2 recommended footprint
DS1551 - Rev 10
page 10/16
TS391, TS391A
Ordering information
7
Ordering information
Table 6. Order codes
Part number
Temperature range
TS391ILT
TS391IQ2T
-40 °C to 125 °C
(automotive grade)
SOT23-5
SOT23-5
(automotive grade)
DFN8 2x2
Marking
K511
K512
SOT23-5
TS391IYLT (1)
TS391RIYLT (1)
Packaging
SOT23-5
TS391AILT
TS391RILT
Package
K510
Tape and reel
K509
K535
K5D
1. Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC
Q001 & Q002 or equivalent.
DS1551 - Rev 10
page 11/16
TS391, TS391A
Revision history
Table 7. Document revision history
Date
Revision
Changes
22-Sep-2004
1
Initial release.
06-Jan-2006
2
PPAP reference inserted in the document.
Added values for Rthja, Rthjc and ESD in Table 1: Absolute maximum ratings (AMR).
21-Nov-2007
3
Added footnote for automotive grade order code in order codes table.
Updated format.
21-Jan-2010
4
Corrected ESD tolerance values for human body model and machine model in Table 1:
Absolute maximum ratings (AMR) and added ESD tolerance value for charged device
model.
Updated note 1 in Table 6: Order codes.
Added TS391R pinout on page 1.
23-May-2011
5
Modified VCC range in Table 2: Operating conditions.
Added TS391RILT order code in Table 6: Order codes.
02-Mar-2012
6
Added DFN8 package information and changed SOT23-5L package drawing in
Chapter 4.
Removed letter "L" and "plastic package" from SOT23-5 silhouette and letters "Q2" and
"plastic micropackage" from DFN8 2x2 silhouette.
Standardized name of the DFN8 package to: "DFN8 2x2" throughout datasheet.
06-Nov-2015
7
Table 1: "Absolute maximum ratings (AMR)": added parameter Vo
Table 4: "SOT23-5 mechanical data": updated “K” parameter
Table 5: "DFN8 2 x 2 mechanical data": updated “L” parameter
Added new part number TS391A
20-Mar-2017
8
Features: updated low input offset voltage for TS391A
Table 3: added Vio and Iib information for TS391A
Table 6: "Order codes": added new order code TS391AILT
DS1551 - Rev 10
06-Mar-2020
9
Table 6 added new order code TS391RIYLT
14-Jan-2021
10
Updated Figure 3. Pin connections (top view).
page 12/16
TS391, TS391A
Contents
Contents
1
Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
2
Package pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3
Absolute maximum ratings and operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
4
Electrical characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
5
Electrical characteristic curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6
Package information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
7
6.1
SOT23-5 package information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6.2
DFN8 2 x 2 package information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
DS1551 - Rev 10
page 13/16
TS391, TS391A
List of tables
List of tables
Table 1.
Table 2.
Absolute maximum ratings (AMR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
VCC + = 5 V, VCC - = 0 V, Tamb = 25 °C (unless otherwise specified)
SOT23-5 mechanical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DFN8 2 x 2 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . .
Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DS1551 - Rev 10
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. 5
. 8
. 9
11
12
page 14/16
TS391, TS391A
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
DS1551 - Rev 10
Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply current vs. supply voltage . . . . . . . . . . . . . . . . . . . . .
Response time for various input overdrives - negative transition
Input current vs. supply voltage. . . . . . . . . . . . . . . . . . . . . . .
Response time for various input overdrives - positive transition .
Output saturation voltage vs. output current . . . . . . . . . . . . . .
SOT23-5 package outline . . . . . . . . . . . . . . . . . . . . . . . . . .
DFN8 2 x 2 package outline . . . . . . . . . . . . . . . . . . . . . . . . .
DFN8 2 x 2 recommended footprint . . . . . . . . . . . . . . . . . . . .
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. 2
. 3
. 6
. 6
. 6
. 6
. 6
. 8
. 9
10
page 15/16
TS391, TS391A
IMPORTANT NOTICE – PLEASE READ CAREFULLY
STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST
products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST
products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement.
Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of
Purchasers’ products.
No license, express or implied, to any intellectual property right is granted by ST herein.
Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product.
ST and the ST logo are trademarks of ST. For additional information about ST trademarks, please refer to www.st.com/trademarks. All other product or service
names are the property of their respective owners.
Information in this document supersedes and replaces information previously supplied in any prior versions of this document.
© 2021 STMicroelectronics – All rights reserved
DS1551 - Rev 10
page 16/16