STMICROELECTRONICS TS836-4I

TS836
MICROPOWER VOLTAGE SUPERVISOR
RESET ACTIVE HIGH
■ ULTRA LOW POWER CONSUMPTION: 12µA
max. at Vcc = 5V
■ PRECISION RESET THRESHOLD (guaranteed over Temperature)
■ THRESHOLD VOLTAGE:
4.50V typ. FOR TS836-4
■ GUARANTEED RESET OPERATION FOR
VCC DOWN TO 1V
■ OPEN DRAIN OUTPUT COMPARATOR
WITH Vol = 450mV typ. @ I ol = 8mA & Vcc = 4V
■ FAST RESPONSE TIME: 20µs FOR A 10mV
D
SO8
(Plastic Micropackage)
Z
TO92
(Plastic Package)
OVERDRIVE
■ 100mV INTERNAL HYSTERESIS
DESCRIPTION
The TS836 ultra low power integrated circuit incorporates a high stability band-gap voltage reference and a comparator with open drain output.
P
TSSOP8
(Thin Shrink Small Outline Package)
The threshold voltage is set at 4.5V for TS836-4
by internal thermally matched resistances.
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 of 100mV increases the
comparator’s noise margin and prevents false reset operation.
PIN CONNECTIONS (top view)
SO8-TSSOP8
NC
8
NC
7
NC
6
NC
5
2
IN
3
NC
4
GND
APPLICATION
■ Power-on reset generator for micro controller
■ Power failure detector
1
OUT
TO92
ORDER CODE
Package
Part Number
TS836-4I
Temperature Range
-40, +85°C
D
Z
P
•
•
•
Z= TO92 Plastic package - also available in Bulk (Z), Tape & Reel (ZT)
and Ammo Pack (AP)
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
P = Thin Shrink Small Outline Package (TSSOP) - only available
in Tape & Reel (PT)
May 2003
1
OUT
2
IN
3
GND
1/10
TS836
ABSOLUTE MAXIMUM RATINGS
Symbol
VCC
Parameter
Supply Voltage
VOUT
Output Voltage
IOUT
Output Current
1)
Unit
7
V
-0.3 to Vcc
Power Dissipation2)
Storage Temperature
+
V
0.3
20
mA
700
625
625
mW
-65 to +150
°C
Value
Unit
SO8
TSSOP8
TO92
PD
TSTG
Value
1. All voltages values, except differential voltage are with respect to network ground terminal.
2. PD is calculated with T AMB=+25°C, TJ=+150°C and
RTHJA= 175°C/W for SO8 package
RTHJA= 200°C/W for TSSOP8 package
RTHJA= 200°C/W for TO92 package
OPERATING CONDITIONS
Symbol
VCC
TOPER
Parameter
Supply Voltage
Operating Free Air Temperature Range
1 to 5.5
V
-40 to +85
°C
TS836-4
ELECTRICAL CHARACTERISTICS Tamb = 25°C (unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
VTHIi
Threshold Voltage - VCC Increasing
Tmin. ≤ Tamb ≤ Tmax.
4.17
4.5
4.66
V
VTHD
Threshold Voltage - VCC Decreasing
Tmin. ≤ Tamb ≤ Tmax.
4.17
4.4
4.66
V
VHYS
Hysteresis Voltage
50
100
200
mV
12
µA
ICC
Current Consumption
VCC = 5V
VOL
Low Level Output Voltage
IOL = 8mA, Tmin. ≤ Tamb ≤ Tmax.
VCC = 4V
450
800
1000
mV
IOH
Output Off-state Leakage
Tmin. ≤ Tamb ≤ Tmax.
VCC = 5V
2
100
1000
nA
TPHL
2/10
Response Time High to Low
RL = 10kΩ, CL = 15pF, VCC = Vthd -10mV
20
µs
TS836
EQUIVALENT SCHEMATIC DIAGRAM
INPUT (Vcc)
OUTPUT
1.2V Vref
GND
TIMING DIAGRAM
V cc
V thi
V thd
V cc m in
t
R e set
A ctiv e
In activ e
t
3/10
TS836
Vth vs Temperature while VCC increasing
Vth vs Temperature while VCC decreasing
4.60
4.44
VTHD (Volts)
VTHI (Volts)
4.56
4.52
4.48
4.40
4.36
4.44
4.40
-40
-20
0
20
40
60
80
100
4.32
-40
120
-20
0
Temperature (°C)
200
10.0
150
9.5
Icc (µA)
Hysteresis (mV)
60
80
100
120
80
100
120
ICC vs Temperature
100
50
9.0
8.5
-20
0
20
40
60
80
100
8.0
-40
120
-20
0
20
40
60
Temperature (°C)
Temperature (°C)
Reset Output Voltage vs Input Voltage
Voltage Output Low vs Sink Current
1.00
5
4
0.75
VOL (Volts)
Output voltage (Volts)
40
Temperature (°C)
Hysteresis vs Temperature
0
-40
20
3
RL=10kΩ
T=+25°C
2
0.50
T=+25°C
0.25
1
0
4.3
0.00
4.4
4.5
Input voltage (Volts)
4/10
4.6
0
5
10
ISINK (mA)
15
20
TS836
Reset Output Voltage vs Input Voltage
5V
Input signal
2V/div
0.5ms/div
TS836-4
RL=10Kohms
T=25°C
Supply Failing down: Reset Delay Time
5V
Input signal
0.5V/div
10 µs/div
0V
3.5V
5V
3.5V
Reset output
2V/div
0.5ms/div 0V
Reset output
2V/div
10 µs/div 0V
Supply Failing Down: Extended Reset Delay
Time with an Additional Capacitor
5V
Input signal
0.5V/div
0.1 ms/div
TS836-4
RL=10 Kohms
CL=10 nF
T=25°C
3.5V
3.5V
Input signal
0.5V/div
0.5 µs/div
TS836-4
RL=10 Kohms
T=25°C
5V
Input signal 6V
2 V/div
0.5 ms/div 4V
0V
5V
Reset output
2V/div
0.5 µs/div 0V
Reset Output Voltage vs Input Voltage
(example)
Reset output
2V/div
0.5 ms/div
Supply Rising up: Output Delay Time
3.5V
Reset output
2V/div
0.1 ms/div
0V
6V
TS836-4
RL=10Kohms
T=25°C
TS836-4
RL=10 Kohms
T=25°C
Reset Output Voltage vs Input Voltage
(example)
Input signal 5V
2 V/div
0.5 ms/div 3V
TS836-4
RL=10 Kohms
T=25°C
5V
Reset output
2V/div
0.5 ms/div
0V
5/10
TS836
Basic configuration
Configuration with an additional Capacitive
Load
Load
Resistor
Vcc
Input
Voltage
6/10
Load Resistor
Reset
TS836
Output
Voltage
Vcc
Input
Voltage
Reset
TS836
Capacitive
Load
Output
Voltage
TS836
PACKAGE MECHANICAL DATA
SO-8 MECHANICAL DATA
DIM.
mm.
MIN.
TYP
inch
MAX.
MIN.
TYP.
MAX.
A
1.35
1.75
0.053
0.069
A1
0.10
0.25
0.04
0.010
A2
1.10
1.65
0.043
0.065
B
0.33
0.51
0.013
0.020
C
0.19
0.25
0.007
0.010
D
4.80
5.00
0.189
0.197
E
3.80
4.00
0.150
0.157
e
1.27
0.050
H
5.80
6.20
0.228
0.244
h
0.25
0.50
0.010
0.020
L
0.40
1.27
0.016
0.050
k
ddd
8˚ (max.)
0.1
0.04
0016023/C
7/10
TS836
PACKAGE MECHANICAL DATA - TO92 TAPE AMMO PACK & TO92 TAPE & REEL
TO-92 MECHANICAL DATA
DIM.
AL
A
T
d
I1
P
PO
P2
F1/F2
D h
D P
W
W0
W1
W2
H
H0
H1
DO
L1
MIN.
mm.
TYP
MAX.
5.0
5.0
4.0
MIN.
0.45
2.5
11.7
12.4
5.95
2.4
-1
-1
17.5
5.7
8.5
12.7
12.7
6.35
2.5
0
0
18.0
6
9
15.5
16
3.8
4.0
inches
TYP.
MAX.
0.197
0.197
0.157
0.018
13.7
13
6.75
2.8
1
1
19.0
6.3
9.75
0.5
20
16.5
25
4.2
11
0.098
0.461
0.488
0.234
0.094
-0.039
-0.039
0.689
0.224
0.335
0.500
0.500
0.250
0.098
0
0
0.709
0.236
0.354
0.610
0.630
0.150
0.157
0.539
0.512
0.266
0.110
0.039
0.039
0.748
0.248
0.384
0.020
0.787
0.650
0.984
0.165
0.433
Packing information are available at: http://www.st.com/stonline/prodpres/packages/stdlin.htm
8/10
TS836
PACKAGE MECHANICAL DATA - TO92 BULK
TO-92 MECHANICA DATA
mm.
mils
DIM.
MIN.
TYP
MAX.
MIN.
TYP.
MAX.
A
4.32
4.95
170.1
194.9
b
0.36
0.51
14.2
20.1
D
4.45
4.95
175.2
194.9
E
3.30
3.94
129.9
155.1
e
2.41
2.67
94.9
105.1
e1
1.14
1.40
44.9
55.1
L
12.7
15.49
500.0
609.8
R
2.16
2.41
85.0
94.9
S1
0.92
1.52
36.2
59.8
W
0.41
0.56
16.1
22.0
0102782/C
Packing information are available at: http://www.st.com/stonline/prodpres/packages/stdlin.htm
9/10
TS836
PACKAGE MECHANICAL DATA
TSSOP8 MECHANICAL DATA
mm.
inch
DIM.
MIN.
TYP
A
MAX.
MIN.
TYP.
1.2
A1
0.05
A2
0.80
b
MAX.
0.047
0.15
0.002
1.05
0.031
0.19
0.30
0.007
0.012
c
0.09
0.20
0.004
0.008
D
2.90
3.00
3.10
0.114
0.118
0.122
E
6.20
6.40
6.60
0.244
0.252
0.260
E1
4.30
4.40
4.50
0.169
0.173
0.177
e
0.65
K
0˚
L
0.45
L1
1.00
0.60
1
0.006
0.039
0.041
0.0256
8˚
0˚
0.75
0.018
8˚
0.024
0.030
0.039
0079397/D
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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.
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