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STMicroelectronics Electronic Components Datasheet

TS831 Datasheet

MICROPOWER VOLTAGE SUPERVISOR RESET ACTIVE LOW

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TS831
MICROPOWER VOLTAGE SUPERVISOR
RESET ACTIVE LOW
s ULTRA LOW POWER CONSUMPTION :
12µA 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
VCC DOWN TO 1V
s OPEN DRAIN OUTPUT COMPARATOR
s FAST RESPONSE TIME : 20µs 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 20µs 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
Part Number Temperature Range
TS831-5I
TS831-4I
TS831-3I
-40, +125°C
Package
DZP
•••
•••
•••
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)
D
SO8
(Plastic Micropackage)
Z
TO92
(Plastic Package)
P
TSSO P8
(Thin Shrink Small Outline Package)
PIN CONNECTIONS (top view)
SO8- TSSO P8
TO92
October 2000
1/11


STMicroelectronics Electronic Components Datasheet

TS831 Datasheet

MICROPOWER VOLTAGE SUPERVISOR RESET ACTIVE LOW

No Preview Available !

TS831 pdf
TS831
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
VCC Supply Voltage 1)
Vout Output Voltage
Iout Output Sink Current
TS831-5 and TS831-4
TS831-3
Pd Power Dissipation 2)
TO 92
SO8
TSSOP8
IF Clamp Diode Forward Current, pin 1 to pin 2 3)
Toper Operating Free Air Temperature Range
Tstg Storage Temperature
1. All voltages values, except differential voltage are with respect to network ground terminal.
2. Tj = 150°C, Tamb = 25oC with Rthja = 200oC/W for TO-92 package
Rthja = 175oC/W for SO8 package
Rthja = 200oC/W for TSSOP8 package
3. Maximum package power dissipation limit s must be observed.
Value
7
-0.3 to Vcc + 0.3
20
5
625
700
625
100
-40 to +85
-65 to +150
OPERATING CONDITIONS
Symbol
VCC Supply Voltage
Parameter
Value
1 to 5.5
TS831-5
ELECTRICAL CHARACTERISTICS Tamb = 25°C (unless otherwise specified)
Symbol
Parameter
Min. Typ.
Threshold Voltage - VCC Increasing
Vthi -40°C Tamb +85°C
-40°C Tamb +125°C
4.10
4.10
4.33
Threshold Voltage - VCC Decreasing
Vthd -40°C Tamb +85°C
-40°C Tamb +125°C
4.10
4.06
4.21
Vhys Hysteresis Voltage
50 100
ICC Current Consumption
VCC = 5V
Low Level Output Voltage
VOL -40°C Tamb +85°C
-40°C Tamb +125°C
VCC = 4V, IOL = 8mA
450
IOH
Low Level Output Voltage
-40°C Tamb +125°C
VCC = 5V
2
Response Time High to Low
tphl RL = 10k, CL = 15pF, VCC = Vthd -10mV
20
Note : Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation and by design.
Max.
4.46
4.50
4.46
4.46
200
12
800
1000
1300
100
1000
Unit
V
V
mA
mW
mA
°C
°C
Unit
V
Unit
V
V
mV
µA
mV
nA
µs
2/11


Part Number TS831
Description MICROPOWER VOLTAGE SUPERVISOR RESET ACTIVE LOW
Maker ST Microelectronics
Total Page 11 Pages
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