TS831-3IZ-AP [STMICROELECTRONICS]
Micropower voltage supervisor with reset active low;
| 型号： | TS831-3IZ-AP |
| 厂家： | 
ST |
| 描述： | Micropower voltage supervisor with reset active low |
| 文件： | 总11页 (文件大小：267K) |
| 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
■ INTERNAL BUILT-IN HYSTERESIS
■ PIN TO PIN COMPATIBLE WITH MC33064
AND MC33164
D
SO8
Z
TO92
(Plastic Package)
(Plastic Micropackage)
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.
P
TSSOP8
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.
(Thin Shrink Small Outline Package)
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.
PIN CONNECTIONS (top view)
SO8-TSSOP8
APPLICATION
■ Power-on reset generator for microcontroller
■ Power failure detector
ORDER CODE
TO92
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)
November 2001
1/11
TS831
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
1)
VCC
7
V
V
Supply Voltage
V
-0.3 to Vcc + 0.3
Output Voltage
OUT
Output Sink Current
TS831-5 and TS831-4
TS831-3
20
5
IOUT
mA
2)
P
625
700
625
Power Dissipation
TO92
SO8
TSSOP8
D
mW
3)
IF
100
mA
Clamp Diode Forward Current, pin 1 to pin 2
Storage Temperature
TSTG
-65 to +150
°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
Operating Free Air Temperature Range
1 to 5.5
V
T
-40 to +125
°C
OPER
TS831-5
ELECTRICAL CHARACTERISTICS Tamb = 25°C (unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
Threshold Voltage with VCC Increasing
-40°C ≤ Tamb ≤ +85°C
4.33
VTHI
4.11
4.11
4.46
4.50
V
-40°C ≤ Tamb ≤ +125°C
Threshold Voltage with 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
High Level Output Current
VCC = 5V
2
100
1000
IOH
nA
-40°C ≤ Tamb ≤ +125°C
Response Time High to Low
T
20
µs
PHL
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
4.50
Threshold Voltage with VCC Increasing
-40°C ≤ Tamb ≤ +85°C
VTHI
4.18
4.18
4.66
4.70
V
-40°C ≤ Tamb ≤ +125°C
Threshold Voltage with VCC Decreasing
-40°C ≤ Tamb ≤ +85°C
4.40
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
High Level Output Current
VCC = 5V
2
100
1000
IOH
nA
-40°C ≤ Tamb ≤ +125°C
Response Time High to Low
T
20
µs
PHL
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 with VCC Increasing
2.71
VTHI
V
2.55
2.8
-40°C ≤ Tamb ≤ +125°C
Threshold Voltage with 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
High Level Output Current
VCC = 3V
100
1000
-40°C ≤ Tamb ≤ +125°C
Response Time High to Low
T
20
PHL
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
INPUT (Vcc)
OUTPUT
1.2V Vref
GND
TIMING DIAGRAM
4/11
TS831
Output voltage versus Vcc
Reset output voltage versus Vcc
5
5
TS831- 3
RL = 10 kΩ
TS831- 3
RL = 10 kΩ
4
4
T=25°C
T=25°C
3
3
2
1
0
2
1
0
2.600
2.625
2.650
2.675
2.700
2.725
2.750
0
1
2
3
4
5
Vcc (V)
Vcc (V)
Output voltageversus Vcc
Reset output voltage versus Vcc
5
5
TS831- 4
4
RL = 10 kΩ
T=25°C
4
3
2
1
0
TS831- 4
RL = 10 kΩ
T=25°C
3
2
1
0
4.40
4.45
4.50
4.55
4.60
0
1
2
3
4
5
Vcc (V)
Vcc (V)
Output voltage versus Vcc
Reset output voltage versus Vcc
5
5
TS831- 5
RL = 10 kΩ
4
4
T=25°C
TS831- 5
RL = 10 kΩ
3
3
T=25°C
2
1
0
2
1
0
4.20
0
1
2
3
4
5
4.25
4.30
4.35
4.40
Vcc (V)
Vcc (V)
5/11
TS831
V
versus temperature
V
versus temperature
THD
THI
4.44
4.60
4.55
TS831-4
VTHD max
TS831- 4
4.42
4.40
4.38
4.36
4.34
4.32
x
a
m
V
4.50
4.45
4.40
n
i
m
V
VTHD min
-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
160
10.0
Icc max
140
120
100
80
TS831- 4
No load
9.5
Icc min
9.0
TS831- 4
Vcc=5V
No load
8.5
8.0
60
-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 Vcc & temperature
Voltage output low vs Isink & temperature
12
TS831- 3
Input voltage=2.4 V
2.0
TS831- 3
No load
10
8
+125°C
1.5
1.0
0.5
0.0
+85°C
+25°C
- 40°C
6
+125°C
-40°C
4
+25°C
2
0
0
1
2
3
4
5
0
1
2
3
4
5
ISINK (mA)
Vcc (V)
6/11
TS831
Supply current vs Vcc & temperature
Voltage output low vs Isink & temperature
10
4
3
2
1
0
TS831- 4
No load
TS831- 4
Vcc= 4 V
8
6
4
2
0
+85°C
+125°C
+125°C
+85°C
+25°C
+25°C
- 40°C
- 40°C
0
5
10
ISINK (mA)
15
20
0
1
2
3
4
5
Vcc (V)
Supply current vs Vcc & temperature
Voltage output low vs Isink & temperature
4
10
TS831- 5
No load
TS831- 5
Vcc=4 V
+125°C
+85°C
+125°C
8
3
2
1
0
+85°C
6
4
+25°C
- 40°C
+25°C
- 40°C
2
0
0
5
10
ISINK (mA)
15
20
0
1
2
3
4
5
Vcc (V)
Clamp diode forward current versus voltage
Response time
5 V
100
4 V
4 V
Vcc=0 V
T=25°C
80
60
40
20
0
Vcc
5 V
Reset output
TS831- 4
RL = 10 kΩ
T=25°C
Response time
0 V
0
20
40
Time (µs)
60
80
0.0
0.5
1.0
1.5
Forward voltage (V)
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 lowvs 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 TO92
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
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.
© The ST logo is a registered trademark of STMicroelectronics
© 2001 STMicroelectronics - Printed in Italy - All Rights Reserved
STMicroelectronics GROUP OF COMPANIES
Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco
Singapore - Spain - Sweden - Switzerland - United Kingdom
© http://www.st.com
11/11
相关型号：
©2020 ICPDF网 联系我们和版权申明