TS391A [STMICROELECTRONICS]
低功耗单路电压比较器;
| 型号： | TS391A |
| 厂家： | 
ST |
| 描述： | 低功耗单路电压比较器 放大器 光电二极管 放大器电路 比较器 |
| 文件： | 总5页 (文件大小：47K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TS391
LOW POWER SINGLE VOLTAGE COMPARATORS
.
.
WIDE SINGLESUPPLY VOLTAGERANGE OR
DUAL SUPPLIES +2V TO +36V OR ±1V TO
±18V
VERY LOW SUPPLY CURRENT (0.2mA)
INDEPENDENT OF SUPPLY VOLTAGE
(1 mW/comparator at +5V)
LOW INPUT BIAS CURRENT : 25nATYP
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
TTL, DTL, ECL, MOS, CMOS COMPATIBLE
OUTPUTS
.
.
.
.
.
.
.
L
SOT23-5L
(Tiny Package)
DESCRIPTION
These devices consist of a low power voltage com-
paratordesigned specifically to operate from a sin-
gle supply over a wide range of voltages. Operation
from split power supplies is also possible.
This comparator also hasa unique characteristic in
that the input common-mode voltage range
includesgroundeventhoughoperatedfroma single
powersupply voltage.
ORDER CODES
Package
Part
Number
Temperature
Range
L
TS391IL
–40, +125oC
•
Example : TS391IL
PIN CONNECTIONS (top view)
+
V
Output
1
5
CC
V
-
2
3
CC
Inve rting input
4 Non-inve rting input
November 1998
1/5
TS391
SCHEMATIC DIAGRAM
VCC
µ
µ
µ
µ
3.5 A
100 A
3.5 A
100 A
Non-inverting
Input
VO
VCC
VCC
Inverting
Input
V
CC
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
TS391I
±18 or 36
±36
Unit
V
VCC
Vid
Vi
Supply Voltage
Differential Input Voltage
Input Voltage
V
–0.3 to +36
Infinite
V
Output Short-circuit to Ground - note 1
Power Dissipation - note 2
Ptot
Toper
Tstg
500
mW
oC
oC
Operating Free-air TemperatureRange
Storage Temperature Range
–40 to +125
–65 to +150
Notes : 1. Short-circuit from the output to VCC+ can cause excessive heating and eventual destruction. The maximum output
+
current is approximately 20mA, independent of the magnitude of VCC
.
2. Tj = 150oC, Tamb = 25oC with Rthja = 250oC/W for SOT23-5 package.
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TS391
ELECTRICAL CHARACTERISTICS
VCC+ = +5V, VCC = 0V, Tamb = 25oC (unless otherwise specified)
–
Symbol
Parameter
Min.
Typ.
Max.
Unit
Vio
Input Offset Voltage – (note 2)
mV
Tamb = +25oC
1
5
9
Tmin. ≤ Tamb ≤ Tmax.
Iib
Input Bias Current – (note 3)
nA
nA
Tamb = +25oC
25
5
250
400
Tmin. ≤ Tamb ≤ Tmax.
Iio
Input Offset Current
Tamb = +25oC
50
150
Tmin. ≤ Tamb ≤ Tmax.
Avd
ICC
Large Signal Voltage Gain
V/mV
mA
VCC = 15V, RL = 15kΩ, Vo = 1 to 11V
50
200
Supply Current
VCC
=
5V, no load
0.2
0.5
0.5
1.25
VCC = 30V, no load
Vicm
Input Common Mode Voltage Range - (note 4)
V
Tamb = +25oC
0
0
VCC+ -1.5
VCC+ -2
Tmin. ≤ Tamb ≤ Tmax.
+
Vid
Differential Input Voltage - (note 6)
VCC
V
Isink
Output Sink Current
mA
(Vid = -1V, VO = 1.5V)
6
16
VOL
Low Level Output Voltage
(Vid = -1V, Isink = 4mA)
Tamb = 25oC
mV
250
400
700
Tmin. ≤ Tamb ≤ Tmax
IOH
High Level Output Current
(Vid = 1V, VCC = VO = 30V)
Tamb = 25oC
0.1
nA
µA
Tmin. ≤ Tamb ≤ Tmax
1
tre
Response Time
µs
(RL = 5.1kΩ to VCC+) – (note 5)
1.3
trel
Large Signal Response Time
ns
+
(Vi = TTL, Vref = +1.4 V, RL = 5.1kΩ to VCC
)
300
+
Notes : 2. 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).
3. 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 no loading charge exists on the reference or input lines.
4. 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.
5. The response time specified is for a 100mV input step with 5mV overdrive. For larger overdrive signals 300ns can
be obtained.
6. 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).
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TS391
SUPPLY CURRENT versus
SUPPLY VOLTAGE
INPUT CURRENT versus
SUPPLY VOLTAGE
80
60
40
20
0.5
Tamb = -55 C
Tamb = 0 C
V = 0V
Ri = 109Ω
i
Tamb = -55°C
0.4
0.3
T
= +25 C
Tamb = 0°C
Tamb= +25°C
Tamb = +70 C
0.2
0.1
Tamb = +125 C
Tamb = +125°C
R
=
Tamb = +70°C
30 40
0
10
20
30
40
0
10
20
S UP P LY VOLTAGE (V)
SUPPLY VOLTAGE (V)
OUTPUT SATURATION VOLTAGE
versus OUTPUT CURRENT
RESPONSE TIME FOR VARIOUS INPUT
OVERDRIVES - NEGATIVE TRANSITION
10 1
6
5
Out of saturation
Input overdrive : 5mV
5V
10 0
10-1
10-2
10-3
4
3
2
1
0
5.1kΩ
20mV
e I
Tamb = +125°C
e
o
100mV
Tamb = -55°C
amb= +25°C
0
T
-50
-100
Tamb= +25°C
10-2
10-1
10 0
10 1
10 2
0
0.5
1
1.5
2
TIME (µs)
OUTPUT SINK CURRENT (mA)
RESPONSE TIME FOR VARIOUS INPUT
OVERDRIVES - POSITIVE TRANSITION
6
5
Input overdrive : 100mV
4
3
5mV
2
20mV
1
0
5V
5. 1kΩ
e I
100
50
0
eo
Tamb= +25°C
0
0.5
1
1.5
2
TIME (µs)
4/5
TS391
PACKAGE MECHANICAL DATA
5 PINS -TINY PACKAGE (SOT23)
A
E
A2
D
b
A1
E1
L
C
Millimeters
Inches
Dim.
Min.
0.90
0
Max.
Min.
Max.
0.057
0.006
0.051
0.020
0.008
0.118
0.118
0.069
0.024
A
A1
A2
b
1.45
0.15
1.30
0.50
0.20
3.00
3.00
1.75
0.60
0.034
0.90
0.35
0.09
2.80
2.60
1.50
0.10
0.034
0.013
0.003
0.110
0.102
0.059
0.003
C
D
E
E1
L
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics.
Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all
information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support
devices or systems without express written approval of STMicroelectronics.
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1998 STMicroelectronics – Printed in Italy – All Rights Reserved
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