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TS831-4IZT

P1-P3P4-P6P7-P9P10-P11
1/11
■ ULTRA LOW POWER CONSUMPTION :
12µA maximum
■ PRECISION RESET THRESHOLD
■ THRESHOLD VOLTAGE:
4.33V typ. FOR TS831-5
4.50V typ. FOR TS831-4
2.71V typ. FOR TS831-3
■ GUARANTEED RESET OPERATION FOR
V
CC DOWN TO 1V
■ OPEN DRAIN OUTPUT COMPARATOR
■ FAST RESPONSE TIME : 20µs FOR A 10mV
OVERDRIVE
■ INTERNAL BUILT-IN HYSTERESIS
■ PIN TO PIN COMPATIBLE WITH MC33064
AND MC33164
DESCRIPTION
The TS831 is an ultra low power integrated circuit
incorporating a high stability band-gap voltage
reference and a comparator with an 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
internal thermally matched resistors.
The comparator exhibits a 20µs response (with
10mV overdrive) and has an open drain output
active 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 reset operation.
APPLICATION
■ Power-on reset generator for microcontroller
■ 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
DZP
TS831-5I
-40, +125°C
•••
TS831-4I
•••
TS831-3I
•••
D
SO8
(Plastic Micropackage)
P
TSSOP8
(Thin Shrink Small Outline Package)
Z
TO92
(Plastic Package)
TO92
SO8-TSSOP8
TS831
MICROPOWER VOLTAGE SUPERVISOR
RESET ACTIVE LOW
November 2001
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)
7V
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
P
D
Power Dissipation
2)
TO92
SO8
TSSOP8
625
700
625
mW
I
F
Clamp Diode Forward Current, pin 1 to pin 2
3)
100 mA
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 limits must be observed.
Symbol Parameter Value Unit
V
CC
Supply Voltage 1 to 5.5 V
T
OPER
Operating Free Air Temperature Range -40 to +125 °C
Symbol Parameter Min. Typ. Max. Unit
V
THI
Threshold Voltage with V
CC
Increasing
-40°C
≤
Tamb
≤
+85°C
-40°C
≤
Tamb
≤
+125°C
4.11
4.11
4.33
4.46
4.50
V
V
THD
Threshold Voltage with 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
µ
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
High Level Output Current V
CC
= 5V
-40°C
≤
Tamb
≤
+125°C
2 100
1000
nA
T
PHL
Response Time High to Low
R
L
= 10k
Ω
, C
L
= 15pF, V
CC
= V
THD
-10mV
20
µ
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 with V
CC
Increasing
-40°C
≤
Tamb
≤
+85°C
-40°C
≤
Tamb
≤
+125°C
4.18
4.18
4.50
4.66
4.70
V
V
THD
Threshold Voltage with V
CC
Decreasing
-40°C
≤
Tamb
≤
+85°C
-40°C
≤
Tamb
≤
+125°C
4.17
4.13
4.40
4.66
4.66
V
V
HYS
Hysteresis Voltage 50 100 200 mV
I
CC
Current Consumption V
CC
= 5V
12
µ
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
High Level Output Current V
CC
= 5V
-40°C
≤
Tamb
≤
+125°C
2 100
1000
nA
T
PHL
Response Time High to Low
R
L
= 10k
Ω
, C
L
= 15pF, V
CC
= V
THD
-10mV
20
µ
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 with V
CC
Increasing
-40°C
≤
Tamb
≤
+125°C
2.55
2.71
2.8
V
V
THD
Threshold Voltage with 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
µ
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
High Level Output Current V
CC
= 3V
-40°C
≤
Tamb
≤
+125°C
2 100
1000
nA
T
PHL
Response Time High to Low
R
L
= 10k
Ω
, C
L
= 15pF, V
CC
= V
THD
-10mV
20
µ
s
Note : Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation and by design.
P1-P3P4-P6P7-P9P10-P11

TS831-4IZT

Mfr. #:
Buy TS831-4IZT
Manufacturer:
STMicroelectronics
Description:
Supervisory Circuits 4.50V Micropower AL
Lifecycle:
New from this manufacturer.
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