TS831-3ID [STMICROELECTRONICS]
MICROPOWER VOLTAGE SUPERVISOR RESET ACTIVE LOW; 微功耗电压监控器复位低有效
| 型号： | TS831-3ID |
| 厂家： | 
ST |
| 描述： | MICROPOWER VOLTAGE SUPERVISOR RESET ACTIVE LOW |
| 文件： | 总11页 (文件大小：93K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TS831
MICROPOWER VOLTAGE SUPERVISOR
RESET ACTIVE LOW
■ 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
VCC DOWN TO 1V
■ OPEN DRAIN OUTPUT COMPARATOR
■ FAST RESPONSE TIME : 20µs FOR A 10mV
OVERDRIVE
D
DIP-8
(Plastic Micropackage)
Z
TO-92
(Plastic Package)
■ INTERNAL BUILT-IN HYSTERESIS
■ 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.
P
TSSOP-8
(Thin Shrink Small Outline Package)
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.
PIN CONNECTIONS (top view)
SO8-TSSOP8
APPLICATION
■ Power-on reset generator for microcontroller
■ Power failure detector
ORDER CODE
TO-92
Package
Part Number Temperature Range
D
Z
P
TS831-5I
TS831-4I
TS831-3I
•
•
•
•
•
•
•
•
•
-40, +125°C
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)
March 2000
1/11
TS831
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
1)
VCC
7
V
V
Supply Voltage
Vout
Iout
-0.3 to Vcc + 0.3
Output Voltage
Output Sink Current
TS831-5 and TS831-4
TS831-3
20
5
mA
2)
Pd
625
700
625
Power Dissipation
TO-92
SO-8
TSSOP-8
3)
mW
IF
100
mA
°C
Clamp Diode Forward Current, pin 1 to pin 2
Operating Free Air Temperature Range
Storage Temperature
T
-40 to +85
-65 to +150
oper
Tstg
°C
1. All voltages values, except differential voltage are with respect to network ground terminal.
2.
T
= 150°C, T
amb
= 25oC with Rthja = 200oC/W for TO-92 package
Rthja = 175oC/W for SO8 package
j
Rthja = 200oC/W for TSSOP8 package
3. Maximum package power dissipation limits must be observed.
OPERATING CONDITIONS
Symbol
Parameter
Value
Unit
VCC
Supply Voltage
1 to 5.5
V
TS831-5
ELECTRICAL CHARACTERISTICS Tamb = 25°C (unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
Threshold Voltage - VCC Increasing
4.33
Vthi
4.10
4.10
4.46
4.50
V
-40°C ≤ Tamb ≤ +85°C
-40°C ≤ Tamb ≤ +125°C
Threshold Voltage - VCC Decreasing
-40°C ≤ Tamb ≤ +85°C
4.21
Vthd
4.10
4.06
4.46
4.46
V
-40°C ≤ Tamb ≤ +125°C
Vhys
ICC
Hysteresis Voltage
50
100
450
200
12
mV
Current Consumption
VCC = 5V
µA
Low Level Output Voltage
-40°C ≤ Tamb ≤ +85°C
-40°C ≤ Tamb ≤ +125°C
VCC = 4V, IOL = 8mA
800
1000
1300
VOL
mV
Low Level Output Voltage
VCC = 5V
2
100
1000
IOH
nA
-40°C ≤ Tamb ≤ +125°C
Response Time High to Low
tphl
20
µs
RL = 10kΩ, CL = 15pF, VCC = Vthd -10mV
Note : Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation and by design.
2/11
TS831
TS831-4
ELECTRICAL CHARACTERISTICS Tamb = 25°C (unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
4.35
Threshold Voltage - VCC Increasing
Vthi
4.17
4.10
4.66
4.70
V
-40°C ≤ Tamb ≤ +85°C
-40°C ≤ Tamb ≤ +125°C
Threshold Voltage - VCC Decreasing
-40°C ≤ Tamb ≤ +85°C
4.4
Vthd
4.17
4.13
4.66
4.66
V
-40°C ≤ Tamb ≤ +125°C
Vhys
ICC
Hysteresis Voltage
50
100
450
200
12
mV
Current Consumption
VCC = 5V
µA
Low Level Output Voltage
-40°C ≤ Tamb ≤ +85°C
-40°C ≤ Tamb ≤ +125°C
VCC = 4V, IOL = 8mA
800
1000
1300
VOL
mV
Low Level Output Voltage
VCC = 5V
2
100
1000
IOH
nA
-40°C ≤ Tamb ≤ +125°C
Response Time High to Low
tphl
20
µs
RL = 10kΩ, CL = 15pF, VCC = Vthd -10mV
Note : Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation and by design.
TS831-3
ELECTRICAL CHARACTERISTICS Tamb = 25°C (unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
Threshold Voltage - VCC Increasing
2.71
Vthi
V
2.55
2.8
-40°C ≤ Tamb ≤ +125°C
Threshold Voltage - VCC Decreasing
2.65
60
Vthd
V
2.55
30
2.8
100
12
-40°C ≤ Tamb ≤ +125°C
Vhys
ICC
Hysteresis Voltage
mV
Current Consumption
VCC = 3V
µA
Low Level Output Voltage
VCC = 2.4V, IOL = 1mA
140
2
400
500
VOL
IOH
mV
nA
µs
-40°C ≤ Tamb ≤ +125°C
Low Level Output Voltage
VCC = 3V
100
1000
-40°C ≤ Tamb ≤ +125°C
Response Time High to Low
tphl
20
RL = 10kΩ, CL = 15pF, VCC = Vthd -10mV
Note : Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation and by design.
3/11
TS831
EQUIVALENT SCHEMATIC DIAGRAM
TIMING DIAGRAM
4/11
TS831
Output voltageversus input voltage
Reset output voltage versus Input voltage
5.0
10
TS831-3
TS831-3
R
L
= 10 Kohms
T=25°C
L
R = 10 Kohms
4.0
3.0
2.0
1.0
0.0
8
6
4
2
0
T=25°C
0
2
4
6
8
10
10
10
2.60
2.65
2.70
2.75
Input voltage (V)
Input voltage (V)
Output voltage versus input voltage
Reset output voltage versus Input voltage
5.0
10
TS831-4
R
L
= 10 Kohms
4.0
8
6
4
2
0
T=25°C
TS831-4
RL= 10 Kohms
T=25°C
3.0
2.0
1.0
0.0
0
2
4
6
8
4.4
4.5
4.6
Input voltage (V)
Input voltage (V)
Output voltageversus input voltage
Reset output voltage versus Input voltage
10
5.0
TS831-5
RL= 10 Kohms
8
6
4
2
0
4.0
T=25°C
3.0
TS831-5
R= 10 Kohms
T=25°C
L
2.0
1.0
0.0
4.20
0
2
4
6
8
4.24
4.28
4.32
4.36
4.40
Input voltage (V)
Inputvoltage (V)
5/11
TS831
Vth versustemperature whileVcc increasing
Vth versustemperaturewhileVcc decreasing
4.44
4.42
4.40
4.38
4.36
4.34
4.32
4.6
4.5
4.5
TS831-4
4.4
4.4
TS831-4
-40
-20
0
20
40
60
80
100 120
-40 -20
0
20
40
60
80
100 120
Temperature (°C)
Temperature (°C)
Hysteresis voltage versus temperature
Supply current versus temperature
9.6
160
9.4
9.2
9.0
8.8
TS831-4
140
120
100
80
TS831-4
No load
8.6
8.4
8.2
-40 -20
0
20
40
60
80 100 120
-40
-20
0
20
40
60
80
100 120
Temperature (°C)
Temperature (°C)
Supply current vs inputvoltage &temperature
Voltage output low vs Isink & temperature
3
-40°C
16
12
8
TS831-3
Vin=2.4V
TS831-3
No Load
2.5
+125°C
+125°C
2
+85°C
+25°C
1.5
-40°C
1
-40°C
25°C
4
0.5
0
0
0
2
4
6
8
10
0
2
4
6
8
Input voltage (V)
Isink (mA)
6/11
TS831
Supply current vs inputvoltage &temperature
Voltage output low vs Isink & temperature
4
25°C
TS831-4
Vin=4V
TS831-4
12
No Load
+125°C
3
+125°C
+85°C
+125°C
-40°C
8
4
0
+25°C
2
-40°C
25°C
-40°C
1
0
0
2
4
6
8
10
0
5
10
15
20
Input voltage (V)
Isink (mA)
Supply currentvs inputvoltage &temperature
Voltage output low vs Isink & temperature
4
25°C
TS831-5
No Load
12
+125°C
TS831-5
Vin=4V
3
+125°C
-40°C
8
4
0
+125°C
+85°C
2
+25°C
-40°C
25°C
-40°C
1
0
0
2
4
6
8
10
0
5
10
15
20
Input voltage (V)
Isink (mA)
Clamp diode forward current versus voltage
Response time
100
5V
Input
signal
4V
Vin= 0V
80
T=25°C
5V
TS831-4
RL= 10 Kohms
T=25°C
60
Reset
output
40
20
0
0V
0
0.5
1
1.5
0
20
40
60
80
100
Forward voltage (V)
Time (µs)
7/11
TS831
Basic configuration
Pull up
resistor
Microprocessor
circuit
Power
Supply
TS831
Reset
Special remarks
* Some microprocessor may integrate the pull up resistor.
* For the pull up resistor choice, please use the graphs nammed ”Voltage
output low vs Isink & temperature” depending on TS831 versions.
8/11
TS831
PACKAGE MECHANICAL DATA
8 PINS - PLASTIC MICROPACKAGE (SO)
Millimeters
Dim.
Inches
Typ.
Min.
Typ.
Max.
Min.
Max.
A
a1
a2
a3
b
1.75
0.25
1.65
0.85
0.48
0.25
0.5
0.069
0.010
0.065
0.033
0.019
0.010
0.020
0.1
0.004
0.65
0.35
0.19
0.25
0.026
0.014
0.007
0.010
b1
C
c1
D
45° (typ.)
4.8
5.8
5.0
6.2
0.189
0.228
0.197
0.244
E
e
1.27
3.81
0.050
0.150
e3
F
3.8
0.4
4.0
1.27
0.6
0.150
0.016
0.157
0.050
0.024
L
M
S
8° (max.)
9/11
TS831
PACKAGE MECHANICAL DATA
3 PINS - PLASTIC PACKAGE TO-92
Millimeters
Inches
Typ.
Dim.
Min
Typ.
Max.
Min.
Max.
L
B
1.27
3.7
0.05
3.2
4.45
4.58
12.7
0.407
0.35
4.2
5.2
0.126
0.1752
0.1803
0.5
0.1457
0.1969
0.198
0.1654
0.2047
0.2098
O1
C
5.00
5.03
5.33
K
O2
a
0.5
0.508
0.016
0.0138
0.0197
0.02
10/11
TS831
PACKAGE MECHANICAL DATA
8 PINS - THIN SHRINK SMALL OUTLINE PACKAGE
0,25 mm
.010 inch
GAGE PLANE
A
E
A2
A1
PIN 1 IDENTIFICATION
Millimeters
Typ.
Inches
Typ.
Dim.
Min.
Max.
Min.
Max.
A
A1
A2
b
1.20
0.15
1.05
0.30
0.20
3.10
0.05
0.006
0.041
0.15
0.05
0.80
0.19
0.09
2.90
0.01
1.00
0.031
0.007
0.003
0.114
0.039
c
0.012
0.122
D
E
3.00
6.40
4.40
0.65
0.118
0.252
0.173
0.025
E1
e
4.30
4.50
0.169
0.177
k
0°
8°
0°
8°
l
0.50
0.60
0.75
0.09
0.0236
0.030
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11/11
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