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Электронный компонент: TS831-5ID

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1/11
s
ULTRA LOW POWER CONSUMPTION :
12
A maximum
s
PRECISION RESET THRESHOLD
s
THRESHOLD VOLTAGE:
4.33V typ. FOR TS831-5
4.50V typ. FOR TS831-4
2.71V typ. FOR TS831-3
s
GUARANTEED RESET OPERATION FOR
V
CC
DOWN TO 1V
s
OPEN DRAIN OUTPUT COMPARATOR
s
FAST RESPONSE TIME : 20
s FOR A 10mV
OVERDRIVE
s
INTERNAL BUILT-IN HYSTERESIS
s
PIN TO PIN COMPATIBLE WITH MC33064
AND MC33164
DESCRIPTION
The TS831 ultra low power integrated circuit incor-
porates a high stability band-gap voltage refer-
ence and a comparator with open drain output.
The threshold voltage is set at 4.33V for TS831-5,
4.5V for TS831-4 and 2.71V for TS831-3 by inter-
nal thermally matched resistances.
The comparator exhibits a 20
s response (with
10mV overdrive) and has an open drain output ac-
tive when input voltage is lower than the threshold.
An internal hysteresis, 100mV for TS831-4/
TS831-5 and 60mV for TS831-3, increases the
comparator's noise margin and prevents false re-
set operation.
APPLICATION
s
Power-on reset generator for microcontroller
s
Power failure detector
ORDER CODE
Z= TO92 Plastic package
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
P = Thin Shrink Small Outline Package (TSSOP) - only available
in Tape & Reel (PT)
PIN CONNECTIONS (top view)
Part Number
Temperature Range
Package
D
Z
P
TS831-5I
-40, +125
C
TS831-4I
TS831-3I
D
DIP-8
(Plastic Micropackage)
P
TSSOP-8
(Thin Shrink Small Outline Package)
Z
TO-92
(Plastic Package)
TO-92
SO8-TSSOP8
TS831
MICROPOWER VOLTAGE SUPERVISOR
RESET ACTIVE LOW
March 2000
TS831
2/11
ABSOLUTE MAXIMUM RATINGS
OPERATING CONDITIONS
TS831-5
ELECTRICAL CHARACTERISTICS
Tamb = 25
C (unless otherwise specified)
Symbol
Parameter
Value
Unit
V
CC
Supply Voltage
1)
7
V
V
out
Output Voltage
-0.3 to V
cc
+ 0.3
V
I
out
Output Sink Current
TS831-5 and TS831-4
TS831-3
20
5
mA
Pd
Power Dissipation
2)
TO-92
SO-8
TSSOP-8
625
700
625
mW
I
F
Clamp Diode Forward Current, pin 1 to pin 2
3)
100
mA
T
oper
Operating Free Air Temperature Range
-40 to +85
C
T
stg
Storage Temperature
-65 to +150
C
1. All voltages values, except differential voltage are with respect to network ground terminal.
2. T
j
= 150
C, T
amb
= 25
o
C with Rthja = 200
o
C/W for TO-92 package
Rthja = 175
o
C/W for SO8 package
Rthja = 200
o
C/W for TSSOP8 package
3. Maximum package power dissipation limit s must be observed.
Symbol
Parameter
Value
Unit
V
CC
Supply Voltage
1 to 5.5
V
Symbol
Parameter
Min.
Typ.
Max.
Unit
V
thi
Threshold Voltage - V
CC
Increasing
-40
C
Tamb
+85
C
-40
C
Tamb
+125
C
4.10
4.10
4.33
4.46
4.50
V
V
thd
Threshold Voltage - V
CC
Decreasing
-40
C
Tamb
+85
C
-40
C
Tamb
+125
C
4.10
4.06
4.21
4.46
4.46
V
V
hys
Hysteresis Voltage
50
100
200
mV
I
CC
Current Consumption
V
CC
= 5V
12
A
V
OL
Low Level Output Voltage
V
CC
= 4V, I
OL
= 8mA
-40
C
Tamb
+85
C
-40
C
Tamb
+125
C
450
800
1000
1300
mV
I
OH
Low Level Output Voltage
V
CC
= 5V
-40
C
Tamb
+125
C
2
100
1000
nA
tphl
Response Time High to Low
R
L
= 10k
, C
L
= 15pF, V
CC
= V
thd
-10mV
20
s
Note : Limits are 100% production tested at 25
C. Limits over temperature are guaranteed through correlation and by design.
TS831
3/11
TS831-4
ELECTRICAL CHARACTERISTICS
Tamb = 25
C (unless otherwise specified)
TS831-3
ELECTRICAL CHARACTERISTICS
Tamb = 25
C (unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
V
thi
Threshold Voltage - V
CC
Increasing
-40
C
Tamb
+85
C
-40
C
Tamb
+125
C
4.17
4.10
4.35
4.66
4.70
V
V
thd
Threshold Voltage - V
CC
Decreasing
-40
C
Tamb
+85
C
-40
C
Tamb
+125
C
4.17
4.13
4.4
4.66
4.66
V
V
hys
Hysteresis Voltage
50
100
200
mV
I
CC
Current Consumption
V
CC
= 5V
12
A
V
OL
Low Level Output Voltage
V
CC
= 4V, I
OL
= 8mA
-40
C
Tamb
+85
C
-40
C
Tamb
+125
C
450
800
1000
1300
mV
I
OH
Low Level Output Voltage
V
CC
= 5V
-40
C
Tamb
+125
C
2
100
1000
nA
tphl
Response Time High to Low
R
L
= 10k
, C
L
= 15pF, V
CC
= V
thd
-10mV
20
s
Note : Limits are 100% production tested at 25
C. Limits over temperature are guaranteed through correlation and by design.
Symbol
Parameter
Min.
Typ.
Max.
Unit
V
thi
Threshold Voltage - V
CC
Increasing
-40
C
Tamb
+125
C
2.55
2.71
2.8
V
V
thd
Threshold Voltage - V
CC
Decreasing
-40
C
Tamb
+125
C
2.55
2.65
2.8
V
V
hys
Hysteresis Voltage
30
60
100
mV
I
CC
Current Consumption
V
CC
= 3V
12
A
V
OL
Low Level Output Voltage
V
CC
= 2.4V, I
OL
= 1mA
-40
C
Tamb
+125
C
140
400
500
mV
I
OH
Low Level Output Voltage
V
CC
= 3V
-40
C
Tamb
+125
C
2
100
1000
nA
tphl
Response Time High to Low
R
L
= 10k
, C
L
= 15pF, V
CC
= V
thd
-10mV
20
s
Note : Limits are 100% production tested at 25
C. Limits over temperature are guaranteed through correlation and by design.
TS831
4/11
EQUIVALENT SCHEMATIC DIAGRAM
TIMING DIAGRAM
TS831
5/11
Output voltage versus input voltage
Output voltage versus input voltage
Output voltage versus input voltage
Reset output voltage versus Input voltage
Reset output voltage versus Input voltage
Reset output voltage versus Input voltage
0
2
4
6
8
10
Input voltage (V)
0
2
4
6
8
10
Output
voltage
(V)
TS831-3
R
L
= 10 Kohms
T=25
C
0
2
4
6
8
10
Input voltage (V)
0
2
4
6
8
10
Output
voltage
(V)
TS831-4
R
L
= 10 Kohms
T=25
C
0
2
4
6
8
10
Input voltage (V)
0
2
4
6
8
10
Output
voltage
(V)
TS831-5
R
L
= 10 Kohms
T=25
C
2.60
2.65
2. 70
2.75
Input voltage (V)
0.0
1.0
2.0
3.0
4.0
5.0
Output
voltage
(V)
TS831-3
R
L
= 10 Kohms
T=25
C
4.4
4.5
4.6
Input voltage (V)
0.0
1.0
2.0
3.0
4.0
5.0
Output
voltage
(V)
TS831-4
R
L
= 10 Kohms
T=25
C
4.20
4.24
4.28
4.32
4.36
4.40
Input voltage (V)
0.0
1.0
2.0
3.0
4.0
5.0
Output
voltage
(V)
TS831-5
R
L
= 10 Kohms
T=25
C