TS391, TS391A
Low-power single voltage comparator
Datasheet - production data
Description
This device consists 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.
Features
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.
(I
o
= 4 mA)
Differential input voltage range equal to the
supply voltage
TTL, DTL, ECL, CMOS compatible outputs
March 2017
DocID6324 Rev 8
1/14
www.st.com
This is information on a product in full production.
Contents
TS391, TS391A
Contents
1
2
3
4
5
6
Schematic diagram.......................................................................... 3
Package pin connections................................................................ 4
Absolute maximum ratings and operating conditions ................. 5
Electrical characteristics ................................................................ 6
Electrical characteristic curves ...................................................... 7
Package information ....................................................................... 8
6.1
6.2
SOT23-5 package information .......................................................... 9
DFN8 2x2 package information ....................................................... 10
7
8
Ordering information..................................................................... 12
Revision history ............................................................................ 13
2/14
DocID6324 Rev 8
TS391, TS391A
Schematic diagram
1
Schematic diagram
Figure 1: Schematic diagram
DocID6324 Rev 8
3/14
Package pin
connections
TS391, TS391A
2
Package pin connections
Figure 2: Pin connections (top view)
4/14
DocID6324 Rev 8
TS391, TS391A
Absolute maximum
ratings and operating
conditions
3
Absolute maximum ratings and operating conditions
Table 1: Absolute maximum ratings (AMR)
Symbol
V
CC
V
id
V
i
V
o
Supply voltage
Differential input voltage
Input voltage
Output voltage
(1)
Output short-circuit to ground
(2)
T
j
T
stg
R
thja
Maximum junction temperature
Storage temperature range
Thermal resistance junction to ambient
(3)
Human body model (HBM)
(4)
ESD
Machine model (MM)
(5)
Charged device model (CDM)
Notes:
(1)
Output
(2)
(6)
Parameter
Value
±18 or 36
±36
-0.3 to 36
36
Infinite
150
-65 to 150
SOT23-5
DFN8 2x2
250
57
1500
100
1000
Unit
V
°C
°C/W
V
voltage can be set up to 36 V even if the V
CC
is lower.
Short-circuits from the output to V
CC+
can cause excessive heating and potential destruction. The maximum
output current is approximately 20 mA independent of the magnitude of V
CC+
.
(3)
Short-circuits
(4)
Human
can cause excessive heating. These values are typical.
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
V
CC
V
icm
T
oper
Notes:
(1)
The
Parameter
Supply voltage
Input common mode voltage range
(1)
Value
2 to 36 or ±1 to ±18
T
amb
= 25 °C
T
min
≤ T
amb
≤ T
max
0 to (V
CC+
) - 1.5
0 to (V
CC+
) - 2
-40 to 125
Unit
V
Operating free-air temperature range
°C
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 (V
CC+
) – 1.5 V, but either or both inputs can go
to 30 V without damage.
DocID6324 Rev 8
5/14
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