UTC TS391/A/B
LINEAR INTEGRATED CIRCUIT
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.
3
2
1
4
5
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.
SOT-25
MARKING
Part Number
TS391
TS391A
TS391B
Marking
S1
SA
SB
PIN CONNECTIONS (top view)
TS391
IN(-)
3
GND
2
Output
1
IN(-)
3
TS391A
GND
2
IN(+)
1
-
-
+
+
4
IN(+)
5
Vcc
4
Output
5
Vcc
UTC
UNISONIC TECHNOLOGIES CO. LTD
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QW-R104-003,B
UTC TS391/A/B
TS391B
IN(+)
3
GND
2
Output
1
LINEAR INTEGRATED CIRCUIT
+
-
4
IN(-)
5
Vcc
Vcc+
BLOCK DIAGRAM
3.5μA
100μA
3.5μA
100μA
IN(+)
GND
IN(-)
GND
Output
GND
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Differential Input Voltage
Input Voltage
Output Short-circuit to Ground
1)
Power Dissipation
2)
Operating Free Air Temperature Range
SYMBOL
Vcc
Vid
Vi
Pd
Topr
RATING
±18
or 36
±36
-0.3 ~ +36
Infinite
500
-40 ~ +125
UNIT
V
V
V
mW
℃
-65 ~ +150
℃
Storage Temperature Range
Tstg
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
UNISONIC TECHNOLOGIES CO. LTD
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QW-R104-003,B
UTC TS391/A/B
Input Offset Voltage
1)
Input Bias Current
2)
Input Offset Current
Large Signal Voltage Gain
Supply Current
Input Common Mode
Voltage Range
3)
Differential Input Voltage
4)
LINEAR INTEGRATED CIRCUIT
TEST CONDITIONS
Tamb=+25℃
Tmin.≤Tamb≤Tmax.
Tamb=+25℃
Tmin.≤Tamb≤Tmax.
Tamb=+25℃
Tmin.≤Tamb≤Tmax.
Vcc=15V,R
L
=15k,Vo=1 to 11V
Vcc=5V,no load
Vcc=30V,no load
Tamb=+25℃
Tmin.≤Tamb≤Tmax.
50
ELECTRICAL CHARACTERISTICS
Vcc=5.0V, All voltage referenced to GND ,Tamb=25
°C
(unless otherwise specified)
PARAMETER
SYMBOL
Vio
Iib
Iio
Gv
Icc
Vicm
Vid
Isink
V
OL
MIN
TYP
1
25
5
200
0.2
0.5
MAX
5
9
250
400
50
150
0.5
1.25
Vcc -1.5
Vcc -2
UNITS
mV
nA
nA
V/mV
mA
mV
mV
mA
0
0
Vcc
Vid=-1V,Vo=1.5V
Vid=1V,Vcc=Vo=30V
Tamb=+25℃
Tmin.≤Tamb≤Tmax.
Vid=1V,Vcc=Vo=30V
Tamb=+25℃
Tmin.≤Tamb≤Tmax.
R
L
=5.1kΩ to Vcc
5)
Output sink current
Low Level Output Voltage
6
16
250
400
700
mV
High Level Output Current
I
OH
Response Time
Large Signal Response
Time
tre
t
rel
0.1
1
1.3
300
nA
μA
μs
ns
Vi=TTL,Vref=+1.4V,R
L
=5.1kΩ to Vcc
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 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.
UTC
UNISONIC TECHNOLOGIES CO. LTD
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QW-R104-003,B
UTC TS391/A/B
LINEAR INTEGRATED CIRCUIT
Response time for various input
overdrives - negative transition
INPUT VOLTAGE (mV) OUTPUT VOLTAGE (V)
TYPICAL PERFORMANCE CHARACTERISTICS
Supply current vs supply voltage
0.5
0.4
0.3
0.2
0.1
0
0
Tamb=-55℃
Tamb=0℃
Tabm=+25℃
Tamb=+70℃
Tamb=+125℃
R=∞
6
5
4
3
2
1
0
0
-50
-100
0
Input overdrive:5mV
+5V
20mV
eI -
+
100mV
5.1kΩ
eo
SUPPLY CURRENT (mA)
Tamb=+25℃
0.5
1
TIME(μS)
Response time for various input
overdrives - positive transition
1.5
2
10
20
30
SUPPLY VOLTAGE (V)
40
Input current vs supply voltage
INPUT VOLTAGE (mV) OUTPUT VOLTAGE (V)
80
Tamb=-55℃
Tamb=0℃
40
Tamb=+25℃
6
5
4
3
2
1
0
100
50
0
0
Input overdrive:100mV
INPUT CURRENT(nA)
60
5mV
20mV
+5V
20
Tamb=+125℃
Tamb=+25℃
eI
Tamb=+70℃
40
-
+
5.1kΩ
eo
0
10
30
20
SUPPLY VOLTAGE (V)
Output saturation voltage vs output current
Out of saturation
0.5
1
TIME(μS)
1.5
2
10
SATURATION VOLTAGE (V)
1
10
0
Tamb=+125℃
10
-1
Tamb=+55℃
10
-2
Tamb=+25℃
10
-2
10
-2
10
-1
10
10
Output sink current (mA)
0
1
10
2
UTC
UNISONIC TECHNOLOGIES CO. LTD
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QW-R104-003,B
UTC TS391/A/B
LINEAR INTEGRATED CIRCUIT
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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