TS836
MICROPOWER VOLTAGE SUPERVISOR
RESET ACTIVE HIGH
s
ULTRA LOW POWER CONSUMPTION: 12µA
max. at V
cc
= 5V
s
PRECISION RESET THRESHOLD (guaran-
teed over Temperature)
s
THRESHOLD VOLTAGE:
4.50V typ. FOR TS836-4
s
GUARANTEED RESET OPERATION FOR
V
CC
DOWN TO 1V
s
OPEN DRAIN OUTPUT COMPARATOR
WITH V
ol
= 450mV typ. @ I
ol
= 8mA & V
cc
= 4V
s
FAST RESPONSE TIME: 20µs FOR A 10mV
OVERDRIVE
D
SO8
(Plastic Micropackage)
Z
TO92
(Plastic Package)
s
100mV INTERNAL HYSTERESIS
DESCRIPTION
The TS836 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 4.5V for TS836-4
by internal 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 of 100mV increases the
comparator’s noise margin and prevents false re-
set operation.
APPLICATION
s
Power-on reset generator for micro controller
s
Power failure detector
O
ORDER CODE
Package
Temperature Range
D
-40, +85°C
•
Z
•
P
•
1
OUT
so
b
te
le
ro
P
uc
d
s)
t(
so
b
-O
P
TSSOP8
(Thin Shrink Small Outline Package)
P
te
le
od
r
s)
t(
uc
PIN CONNECTIONS
(top view)
SO8-TSSOP8
NC
8
NC
7
NC
6
NC
5
1
OUT
2
IN
3
NC
4
GND
TO92
Part Number
TS836-4I
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)
2
IN
3
GND
May 2003
1/10
TS836
ABSOLUTE MAXIMUM RATINGS
Symbol
V
CC
V
OUT
I
OUT
P
D
T
STG
Storage Temperature
R
THJA
= 175°C/W for SO8 package
R
THJA
= 200°C/W for TSSOP8 package
R
THJA
= 200°C/W for TO92 package
Parameter
Supply Voltage
1)
Output Voltage
Output Current
Power Dissipation
2)
SO8
TSSOP8
TO92
Value
7
-0.3 to V
cc
+
0.3
20
700
625
625
-65 to +150
Unit
V
V
mA
mW
°C
1. All voltages values, except differential voltage are with respect to network ground terminal.
2. P
D
is calculated with T
AMB
=+25°C, T
J
=+150°C and
OPERATING CONDITIONS
Symbol
V
CC
T
OPER
Supply Voltage
Operating Free Air Temperature Range
Parameter
Value
1 to 5.5
-40 to +85
TS836-4
ELECTRICAL CHARACTERISTICS
Tamb = 25°C (unless otherwise specified)
Symbol
V
THIi
V
THD
V
HYS
I
CC
V
OL
I
OH
T
PHL
Parameter
Threshold Voltage - V
CC
Increasing
T
min.
≤
T
amb
≤
T
max.
Threshold Voltage - V
CC
Decreasing
T
min.
≤
T
amb
≤
T
max.
Hysteresis Voltage
Current Consumption
Low Level Output Voltage
I
OL
= 8mA, T
min.
≤
T
amb
≤
T
max.
Output Off-state Leakage
T
min.
≤
T
amb
≤
T
max.
Response Time High to Low
R
L
= 10kΩ, C
L
= 15pF, V
CC
= V
thd
-10mV
O
so
b
te
le
ro
P
uc
d
s)
t(
b
-O
V
CC
= 5V
V
CC
= 4V
V
CC
= 5V
so
P
te
le
Min.
4.17
4.17
50
od
r
Typ.
4.5
4.4
100
s)
t(
uc
Max.
4.66
4.66
200
12
Unit
V
°C
Unit
V
V
mV
µA
mV
nA
µs
450
2
800
1000
100
1000
20
2/10
TS836
Vth vs Temperature while V
CC
increasing
4.60
Vth vs Temperature while V
CC
decreasing
4.44
4.56
4.52
4.48
V
THD
(Volts)
-20
0
20
40
60
80
100
120
V
THI
(Volts)
4.40
4.36
4.44
4.40
-40
4.32
-40
-20
0
20
40
60
80
100
120
Temperature (°C)
Temperature (°C)
Hysteresis vs Temperature
I
CC
vs Temperature
10.0
200
Hysteresis (mV)
150
9.5
100
9.0
50
0
-40
-20
0
20
40
60
80
Temperature (°C)
Reset Output Voltage vs Input Voltage
5
Output voltage (Volts)
4
b
O
3
R
L
=10k
Ω
T=+25°C
V
OL
(Volts)
so
2
1
te
le
ro
P
uc
d
s)
t(
100
120
so
b
-O
P
te
le
-20
0
od
r
s)
t(
uc
Icc (
µ
A)
8.5
8.0
-40
20
40
60
80
100
120
Temperature (°C)
Voltage Output Low vs Sink Current
1.00
0.75
0.50
T=+25°C
0.25
0
4.3
0.00
4.4
4.5
4.6
0
5
10
15
20
Input voltage (Volts)
I
SINK
(mA)
4/10
TS836
Reset Output Voltage vs Input Voltage
TS836-4
RL=10Kohms
T=25°C
Supply Failing down: Reset Delay Time
5V
5V
Input signal
2V/div
0.5ms/div
Input signal
0.5V/div
10 µs/div
0V
5V
TS836-4
RL=10Kohms
T=25°C
3.5V
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
Supply Rising up: Output Delay Time
5V
Input signal
0.5V/div
0.1 ms/div
3.5V
3.5V
TS836-4
RL=10 Kohms
CL=10 nF
T=25°C
5V
Input signal
0.5V/div
0.5 µs/div
Reset output
2V/div
0.1 ms/div
0V
Reset Output Voltage vs Input Voltage
(example)
bs
O
Input signal
6V
2 V/div
0.5 ms/div
4V
et
l
o
6V
P
e
ro
uc
d
s)
t(
so
b
-O
P
te
le
3.5V
5V
od
r
s)
t(
uc
TS836-4
RL=10 Kohms
T=25°C
Reset output
2V/div
0.5 µs/div
0V
Reset Output Voltage vs Input Voltage
(example)
TS836-4
RL=10 Kohms
T=25°C
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
Reset output
2V/div
0.5 ms/div
0V
5/10