UTC TS391/A/B LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO. LTD
1
QW-R104-003,B
LOW POWER SINGLE VOLTAGE
COMPARATOR
DESCRIPTION
The UTC TS391/A/B 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 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 +2V to
*
+34V or 1V to 18V
*Very low supply current (0.2mA) independent of supply
voltage (1 mW /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.
1
SOT-25
2
3
4
5
MARKING
Part Number
Marking
TS391 S1
TS391A SA
TS391B SB
PIN CONNECTIONS (top view)
TS391
TS391A
Output
1
5
2
3
4
IN(-)
-
+
IN(+)
Vcc
GND
IN(+)
1
5
2
3
4
-
+
GND
IN(-)
Vcc
Output
UTC TS391/A/B LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO. LTD
2
QW-R104-003,B
TS391B
Output
1
5
2
3
4
IN(+)
+
-
IN(-)
Vcc
GND
BLOCK DIAGRAM
Vcc+
100A
3.5A
3.5A
100A
IN(+)
Output
IN(-)
GND
GND
GND
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL
RATING
UNIT
Supply Voltage
Vcc
18 or 36
V
Differential Input Voltage
Vid
36
V
Input Voltage
Vi
-0.3 ~ +36
V
Output Short-circuit to Ground
1)
Infinite
Power Dissipation
2)
Pd
500
mW
Operating Free Air Temperature Range
Topr
-40 ~ +125
Storage Temperature Range
Tstg
-65 ~ +150
1.
Short-circuit from the output to Vcc
can cause excessive heating and eventual destruction.The maximum output
current is approwimately 20mA,independent of the magnitude of Vcc.
2. Tj=150, Tamb=25 with Rthja=250/W for SOT25 Package.
UTC TS391/A/B LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO. LTD
3
QW-R104-003,B
ELECTRICAL CHARACTERISTICS
Vcc=5.0V, All voltage referenced to GND ,Tamb=25
C(unless otherwise specified)
1.At output switch point, Vo=1.4V,Rs=0 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 PN P input stage. This current is essentially constant,
independent of the state of the output, so no loading charge exists on the reference or input lines.
3.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.
4.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).
5.The response time specified is for a 100mV input step with 5mV overdrive. For larger overdrive signals 300ns can
be obtained.
PARAMETER SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX
UNITS
Input Offset Voltage
1)
Vio
Tamb=+25
Tmin.TambTmax.
1 5
9
mV
Input Bias Current
2)
Iib
Tamb=+25
Tmin.TambTmax.
25 250
400
nA
Input Offset Current
Iio
Tamb=+25
Tmin.TambTmax.
5 50
150
nA
Large Signal Voltage Gain
Gv
Vcc=15V,R
L
=15k,Vo=1 to 11V
50
200
V/mV
Supply Current
Icc
Vcc=5V,no load
Vcc=30V,no load
0.2
0.5
0.5
1.25
mA
Input Common Mode
Voltage Range
3)
Vicm
Tamb=+25
Tmin.TambTmax.
0
0
Vcc -1.5
Vcc -2
mV
Differential Input Voltage
4)
Vid
Vcc
mV
Output sink current
Isink
Vid=-1V,Vo=1.5V 6
16
mA
Low Level Output Voltage
V
OL
Vid=1V,Vcc=Vo=30V
Tamb=+25
Tmin.TambTmax.
250
400
700
mV
High Level Output Current
I
OH
Vid=1V,Vcc=Vo=30V
Tamb=+25
Tmin.TambTmax.
0.1
1
nA
A
Response Time
tre
R
L
=5.1k to Vcc
5)
1.3 s
Large Signal Response
Time
t
rel
Vi=TTL,Vref=+1.4V,R
L
=5.1k to Vcc
300 ns
UTC TS391/A/B LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO. LTD
4
QW-R104-003,B
TYPICAL PERFORMANCE CHARACTERISTICS
Supply current vs supply voltage
S
U
P
P
L
Y
C
U
R
R
E
N
T
(
m
A
)
0.5
0.2
0
0
SUPPLY VOLTAGE (V)
10
20
30
40
TIME(S)
I
N
PU
T
VO
LT
AG
E (
m
V
)
O
U
T
P
U
T
VO
L
T
AG
E
(
V
)
Response time for various input
overdrives - negative transition
6
5
4
3
2
1
0
0
0.5
1
1.5
2
Input current vs supply voltage
I
N
P
U
T
C
U
R
R
E
N
T
(
n
A
)
0
SUPPLY VOLTAGE (V)
80
60
40
20
10
20
30
40
Response time for various input
overdrives - positive transition
0.4
0.3
0.1
Tamb=-55
Tamb=0
Tabm=+25
Tamb=+70
Tamb=+125
R=
0
-50
-100
Tamb=+25
20mV
100mV
Input overdrive:5mV
+5V
5.1k
eI
eo
-
+
Tamb=-55
Tamb=0
Tamb=+25
Tamb=+125
Tamb=+70
TIME(S)
I
N
PU
T
VO
L
T
AG
E (
m
V)
O
U
T
P
U
T
V
O
L
T
AG
E (
V
)
6
5
4
3
2
1
0
0
0.5
1
1.5
2
100
50
0
Tamb=+25
20mV
5mV
Input overdrive:100mV
+5V
5.1k
eI
eo
Output saturation voltage vs output current
S
A
T
U
R
A
T
I
O
N
V
O
L
T
A
G
E
(
V
)
Output sink current (mA)
10
1
10
0
10
-1
10
-2
10
-2
10
-2
10
-1
10
0
10
1
10
2
Tamb=+125
Tamb=+25
Tamb=+55
Out of saturation
-
+
UTC TS391/A/B LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO. LTD
5
QW-R104-003,B
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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