STMICROELECTRONICS TS391IYLT

TS391
Low power single voltage comparator
Features
■
Wide single supply voltage range or dual
supplies +2V to +34V or ±1V to ±17V
■
Very low supply current (0.2mA) independent
of supply voltage (1mW/comparator at +5V)
■
Low input bias current: 25nA typ.
■
Low input offset current: ±5nA typ.
■
Low input offset voltage: ±1mV typ.
■
Input common-mode voltage range includes
ground
■
Low output saturation voltage: 250mV typ.
(Io= 4mA)
■
Differential input voltage range equal to the
supply voltage
■
L
SOT23-5
(Plastic package)
Pin connections (top view)
Output
1
V
CC
2
Inverting input
3
5
VCC+
TTL, DTL, ECL, CMOS compatible outputs
4 Non-inverting input
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.
This comparator also has a unique characteristic
in that the input common-mode voltage range
includes ground even though operated from a
single power supply voltage.
November 2007
Rev 3
1/8
www.st.com
8
Schematic diagram
1
TS391
Schematic diagram
Figure 1.
Schematic diagram
VCC
3.5μA
100μA
3.5μA
100μA
Non-inverting
Input
VCC
VCC
VO
Inverting
Input
VCC
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TS391
Absolute maximum ratings and operating conditions
2
Absolute maximum ratings and operating conditions
Table 1.
Absolute maximum ratings (AMR)
Symbol
Parameter
VCC
Supply voltage
Vid
Differential input voltage
Vi
Input voltage
Tj
Rthja
Value
Unit
±18 or 34
V
-±34
V
-0.3 to +34
V
Output short-circuit to ground(1)
Infinite
Maximum junction temperature
150
°C
250
°C/W
81
°C/W
-65 to +150
°C
Thermal resistance junction to
ambient(2)
Rthjc
Thermal resistance junction to case
Tstg
Storage temperature range
HBM: human body
(2)
model(3)
ESD
MM: machine model
300
V
(4)
200
1. Short-circuits from the output to VCC+ can cause excessive heating and potential destruction. The maximum output current
is approximately 20mA independent of the magnitude of VCC+.
2. Short-circuits can cause excessive heating. These values are typical.
3. Human body model: A 100pF capacitor is charged to the specified voltage, then discharged through a 1.5kΩ resistor
between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating.
4. Machine model: A 200pF capacitor is charged to the specified voltage, then discharged directly between two pins of the
device with no external series resistor (internal resistor < 5Ω). This is done for all couples of connected pin combinations
while the other pins are floating.
Table 2.
Operation conditions
Symbol
Parameter
Value
Unit
2 to 34
±1 to ±17
V
VCC
Supply voltage
Vicm
Input common mode voltage range (1)
Tamb = 25°C
Tmin ≤ Tamb ≤ Tmax
0 to VCC+ -1.5
0 to VCC+ -2
V
Toper
Operating free air temperature range
-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 0.3V. The
upper end of the common-mode voltage range is VCC+ –1.5V, but either or both inputs can go to +30V without damage.
3/8
Electrical characteristics
TS391
3
Electrical characteristics
Table 3.
VCC+ = +5V, VCC- = 0V, Tamb = 25°C (unless otherwise specified)
Symbol
Parameter
Vio
Input offset voltage (1)
Iio
Input offset current
Iib
Input bias current (2)
Test conditions
Min.
Typ.
Max.
Unit
1
5
9
mV
5
50
150
nA
25
250
400
nA
Tmin ≤ Tamb ≤ Tmax
Tmin ≤ Tamb ≤ Tmax
Tmin ≤ Tamb ≤ Tmax
Avd
Large signal voltage gain
VCC+ = 15V, RL = 15kΩ,
Vo = 1 to 11V
ICC
Supply current
VCC+ = 5V, no load
VCC+ = 30V, no load
Vid
Differential input voltage (3)
Isink
Output sink current
Vid = -1V, VO = 1.5V
+
50
200
0.2
0.5
6
V/mV
0.5
1.25
mA
VCC+
V
16
mA
VOL
Low level output voltage
Vid = 1V, VCC = VO = 30V
Tmin ≤ Tamb ≤ Tmax
250
IOH
High level output current
Vid = 1V, VCC+ = VO = 30V
Tmin ≤ Tamb ≤ Tmax
0.1
tre
Small signal response time
RL = 5.1kΩ to VCC+ (4)
1.3
µs
trel
Large signal response time
Vi = TTL, Vref = +1.4V,
RL = 5.1kΩ to VCC+
300
ns
400
700
mV
1
nA
µA
1. At output switch point, VO ≈ 1.4V, RS = 0Ω with VCC+ from 5V to 30V and over the full input common-mode range (0V to
VCC+ -1.5V).
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 loading charge on the reference or input lines.
3. Positive excursions of 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
–0.3V (or 0.3V below the negative power supply, if used).
4. The response time specified is for a 100mV input step with 5mV overdrive. For larger overdrive signals, 300ns can be
obtained.
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TS391
Electrical characteristics
Supply current vs. supply voltage
Figure 3.
INPUT VOLTAGE (mV)
OUTPUT VOLTAGE (V)
Figure 2.
80
INPUT CURRENT (nA)
Vi = 0V
9
R i = 10 Ω
60
Tamb = 0˚C
Tamb = +25˚C
40
20
Tamb = +125˚C
Tamb = +70˚C
0
10
20
30
SUPPLY VOLTAGE (V)
Figure 6.
10
SATURATION VOLTAGE (V)
Tamb = -55˚C
40
Input overdrive : 5mV
5V
5.1kΩ
20mV
eI
eo
100mV
Tamb = +25˚C
0
Figure 5.
OUTPUT VOLTAGE (V)
Input current vs. supply voltage
INPUT VOLTAGE (mV)
Figure 4.
6
5
4
3
2
1
0
0
-50
-100
Response time for various input
overdrives - negative transition
0.5
1
1.5
TIME (μs)
2
Response time for various input
overdrives - positive transition
6
Input overdrive : 100mV
5
4
5mV
3
2
20mV
1
0
100
Tamb = +25˚C
50
0
0
0.5
1
1.5
TIME (μs)
5V
5.1k Ω
eI
eo
2
Output saturation voltage vs.
output current
1
Out of saturation
10
0
Tamb = +125˚C
10
-1
Tamb = -55˚C
10
10
-2
Tamb = +25˚C
-3
10
-2
10
-1
10
0
10
1
10
2
OUTPUT SINK CURRENT (mA)
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Package information
4
TS391
Package information
In order to meet environmental requirements, ST offers these devices in ECOPACK®
packages. These packages have a lead-free second level interconnect. The category of
second level interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com.
Figure 7.
SOT23-5L package mechanical drawing
Table 4.
SOT23-5L package mechanical data
Dimensions
Ref.
Millimeters
Min.
Max.
Min.
Typ.
Max.
A
0.90
1.45
35.4
57.1
A1
0.00
0.15
0.00
5.9
A2
0.90
1.30
35.4
51.2
b
0.35
0.50
13.7
19.7
C
0.09
0.20
3.5
7.8
D
2.80
3.00
110.2
118.1
E
2.60
3.00
102.3
118.1
E1
1.50
1.75
59.0
68.8
e
0.95
37.4
e1
1.9
74.8
L
6/8
Typ.
Mils
0.35
0.55
13.7
21.6
TS391
5
Ordering information
Ordering information
Table 5.
Order codes
Part number
Temperature range
Package
TS391ILT
Packaging
SOT23-5L
-40°C, +125°C
TS391IYLT(1)
Marking
K511
SOT23-5L
(Automotive grade)
Tape & reel
K510
1. Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening
according to AEC Q001 & Q 002 or equivalent are on-going.
6
Revision history
Table 6.
Document revision history
Date
Revision
22-Sep-2004
1
Initial release.
6-Jan-2006
2
PPAP reference inserted in the document.
3
Added values for Rthja, Rthjc and ESD in Table 1: Absolute maximum
ratings (AMR).
Added footnote for automotive grade order code in order codes table.
Updated format.
21-Nov-2007
Changes
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TS391
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