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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
1
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
3.5A
100A
3.5A
100A
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
2
QW-R104-003,B
UTC TS391/A/B
Input Offset Voltage 1) Input Bias Current
2)
LINEAR INTEGRATED CIRCUIT
TEST CONDITIONS
Tamb=+25 Tmin.TambTmax. Tamb=+25 Tmin.TambTmax. Tamb=+25 Tmin.TambTmax. Vcc=15V,RL=15k,Vo=1 to 11V Vcc=5V,no load Vcc=30V,no load Tamb=+25 Tmin.TambTmax. 50
ELECTRICAL CHARACTERISTICS
Vcc=5.0V, All voltage referenced to GND ,Tamb=25C(unless otherwise specified)
PARAMETER
SYMBOL
Vio Iib Iio Gv Icc Vicm Vid Isink VOL
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
Input Offset Current Large Signal Voltage Gain Supply Current Input Common Mode Voltage Range 3) Differential Input Voltage
4)
0 0
Vcc Vid=-1V,Vo=1.5V Vid=1V,Vcc=Vo=30V Tamb=+25 Tmin.TambTmax. Vid=1V,Vcc=Vo=30V Tamb=+25 Tmin.TambTmax. RL=5.1k to Vcc
5)
Output sink current Low Level Output Voltage
6
16 250 400 700
mV
High Level Output Current IOH Response Time Large Signal Response Time tre trel
0.1 1 1.3 300
nA A s ns
Vi=TTL,Vref=+1.4V,RL=5.1k to Vcc
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.
UTC
UNISONIC TECHNOLOGIES
CO. LTD
3
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 5.1k eo
SUPPLY CURRENT (mA)
Tamb=+25 0.5 1 TIME(S) 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
+
5.1k eo
0
10 30 20 SUPPLY VOLTAGE (V) Output saturation voltage vs output current Out of saturation
0.5
1 TIME(S)
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
4
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.
UTC
UNISONIC TECHNOLOGIES
CO. LTD
5
QW-R104-003,B

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