www.fairchildsemi.com
ILC5062
SOT-23 Power Supply reset Monitor
with 1% precision
Features
•
•
•
•
•
•
•
All-CMOS design in SOT-23 or SC70 package
A grade ±1% precision in Reset Detection
Standard grade : ±2% precision in Reset Detection
Only 1µA of Iq
Over 2mA of sink current capability
Built-in hysteresis of 5% of detection voltage
Voltage options of 2.6, 2.7, 2.8, 2.9, 3.1, 4.4, and 4.6V fit
most supervisory applications
• Active low push-pull output
Description
All-CMOS voltage monitoring circuit in either a 3-lead
SOT-23 or SC70 package offers the best performance in
power consumption and accuracy.
The ILC5062 is available in a series of ±1% (A-grade) or 2%
(standard grade) accurate trip voltages to fit most micropro-
cessor applications. Even though its output can sink over
2mA, the device draws only 1µA in normal operation.
Additionally, a built-in hysteresis of 5% of detect voltage
simplifies system design.
Applications
•
•
•
•
Microprocessor reset circuits
Memory battery back-up circuitry
Power-on reset circuits
Portable and battery powered electronics
Block Diagram
V
IN
Pin-Package Configurations
Top View
V
OUT
V
OUT
1
V
OUT
1
V
REF
SC-70
V
SS
2
V
IN
V
SS
3
SOT-23
2
V
IN
V
SS
3
Complementary CMOS Output
Rev. 1.5
©2001 Fairchild Semiconductor Corporation
ILC5062
Absolute Maximum Ratings
Parameter
Input Voltage
Output Current
Output Voltage
Continuous Total
Power Dissipation (SOT-23)
Operating Ambient Temperature
Storage Temperature
Symbol
V
IN
I
OUT
V
OUT
P
D
T
opr
T
stg
Ratings
12
50
V
SS
-0.3~V
IN
=+0.3
150
-30~+80
-40~+125
Units
V
mA
V
mW
°C
°C
Electrical Characterisitcs ILC5062
(T
A
=25°C)
Parameter
Detect Fail Voltage
Detect Fail Voltage
Hysteresis Range
Supply Current
Symbol
V
DF
V
DF
V
HYS
Conditions
A grade
Standard grade
V
IN
= 1.5V
V
IN
= 2.0V
V
IN
= 3.0V
V
IN
= 4.0V
V
IN
= 5.0V
V
DF
= 2.1 ~ 6.0V
N-ch V
DS
= 0.5V
V
IN
= 1.0V
V
IN
= 2.0V
V
IN
= 3.0V
V
IN
= 4.0V
V
IN
= 5.0V
P-Ch V
DS
= 2.1V
V
IN
= 8V
Temperature Characteristics
∆V
DF
/(∆T
opr
•V
DF
) -30°C < Topr < 80°C
Delay Time (Release
t
DLY
Voltage
Output Inversion) (V
DR
-V
OUT
Inversion)
Min.
V
DF
X 0.99
V
DF
X 0.98
V
DF
X 0.02
Typ.
V
DF
V
DF
V
DF
X 0.05
0.9
1.0
1.3
1.6
2.0
Max.
V
DF
X 1.01
V
DF
X 1.02
V
DF
X 0.08
2.6
3.0
3.4
3.8
4.2
10.0
Units
V
V
V
I
SS
µA
Operating Voltage
Output Current
V
IN
1.5
2.2
7.7
10.1
11.5
13.0
-10
V
I
OUT
mA
±100
0.2
ppm/°C
ms
Note: An additional resistor between the V
IN
pin and supply voltage may cause deterioration of the characteristics due to
increasing of V
DR
.
©2001 Fairchild Semiconductor Corporation
2
ILC5062
Functional Description
The following designators 1~6 refer to the timing diagram below.
1. While the input voltage (V
IN
) is higher than the detect voltage (V
DF
), the output voltage at V
OUT
pin equals the input volt-
age at V
IN
pin.
2. When the input V
IN
voltage falls lower than V
DF
, V
OUT
drops near ground voltage.
3. If the input voltage decreases below the minimum operating voltage (V
MIN
), the V
OUT
output voltage will be undefined.
4. During an increase of the input voltage from the V
SS
voltage, V
OUT
is undefined at the voltage below V
MIN
. Exceeding the
V
MIN
level, the ouput stays at the ground level (V
SS
) between the minimum operating voltage (V
MIN
) and the detect release
voltage (V
DR
).
5. If the input voltage increases more than V
DR
, the output voltage at V
OUT
pin equals the input voltage at V
IN
pin.
6. The difference between V
DR
and V
DF
is the hysteresis in the system.
INPUT VOLTAGE (V
IN
)
DETECT RELEASE VOLTAGE (V
DR
)
6
DETECT FAIL VOLTAGE (V
DF
)
MINIMUM OPERATING VOLTAGE (V
MIN
)
GROUND VOLTAGE (V
SS
)
OUTPUT VOLTAGE (V
OUT
)
GROUND VOLTAGE (V
SS
)
1
2
3
4
5
©2001 Fairchild Semiconductor Corporation
3
ILC5062
Typical Performance Characteristics -
General conditions for all curves
Supply Current vs Input Voltage
4
SUPPLY CURRENT I
SS
(µA)
ILC5062M-27
T
A
= 80˚C
3
25˚C
2
-30˚C
1
Supply Current vs Input Voltage
4
SUPPLY CURRENT I
SS
(µA)
ILC5062M-44
3
T
A
= 80˚C
25˚C
2
-30˚C
1
0
0
1
2
3
4
5
6
7
8
9
10
INPUT VOLTAGE V
IN
(V)
0
0
1
2
3
4
5
6
7
8
9
10
INPUT VOLTAGE V
IN
(V)
N-ch Driver Output Current vs V
DS
40
OUTPUT CURRENT:I
OUT
Nch (mA)
ILC5062M-27
N-ch Driver Output Current vs V
DS
80
OUTPUT CURRENT:I
OUT
Nch (mA)
70
60
3.5V
50
3.0V
40
30
20
10
1.5V
0
0
1
2
V
DS
(V)
3
4
2.0V
2.5V
ILC5062M-44
V
IN
= 4.0V
30
V
IN
= 2.5V
20
2.0V
10
1.5V
0
0
0.5
1.0
1.5
V
DS
(V)
2.0
2.5
3.0
V
OUT
vs V
IN
V
OUT
vs V
IN
4
OUTPUT VOLTAGE:V
OUT
(V)
ILC5062M-27
OUTPUT VOLTAGE:V
OUT
(V)
6
ILC5062M-44
T
A
= 80˚C
25˚C
-30˚C
5
3
T
A
= 80˚C
25˚C
-30˚C
4
3
2
2
1
1
0
0
0
1
2
3
4
INPUT VOLTAGE V
IN
(V)
0
1
2
3
4
5
6
INPUT VOLTAGE V
IN
(V)
©2001 Fairchild Semiconductor Corporation
4
ILC5062
Typical Performance Characteristics -
General conditions for all curves
N-ch Driver Output Current vs Input Voltage
20
OUTPUT CURRENT:I
OUT
Nch (mA)
ILC5062M-27
V
DS
= 0.5V
OUTPUT CURRENT:I
OUT
Nch (mA)
20
N-ch Driver Output Current vs Input Voltage
25
ILC5062M-44
V
DS
= 0.5V
T
A
= 30˚C
15
T
A
= 30˚C
25˚C
15
80˚C
10
25˚C
10
80˚C
5
5
0
0
0.5
1.0
1.5
2.0
2.5
3.0
INPUT VOLTAGE V
IN
(V)
0
0
1
2
3
4
5
INPUT VOLTAGE V
IN
(V)
P_ch Driver Output Current vs Input Voltage
10
OUTPUT CURRENT:I
OUT
pch (mA)
ILC5062M-27
V
DS
= 2.1V
OUTPUT CURRENT:IOUTpch (mA)
P_ch Driver Output Current vs Input Voltage
12
10
8
6
4
2
0
0.5V
1.5V
ILC5062M-44
V
DS
= 2.1V
8
1.5V
6
1.0V
4
0.5V
2
1.0V
0
0
1
2
3
4
5
6
7
8
9
10
INPUT VOLTAGE V
IN
(V)
0
1
2
3
4
5
6
7
8
9
10
INPUT VOLTAGE V
IN
(V)
V
DR
and V
DF
vs Temperature
ILC5062M-27
RELEASE VOLTAGE:V
DF
and
RELEASE VOLTAGE:V
DR
3.0
2.9
2.8
2.7
2.6
2.5
-40
-20
0
20
40
60
80
AMBIENT TEMPERATURE:T
A
V
DR
(V)
V
DF
(V)
©2001 Fairchild Semiconductor Corporation
5
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