AIC1680
Ultra Low Power Voltage Detector
FEATURES
Ultra-Low Quiescent Current.
1.5V to 10.0V Input Voltage Operation.
Flexible Detection Voltage Setting
0.1V Step in the Range of 1.6V to 6.0V
High Detection Voltage Accuracy at
±2.5%.
Built-In Detection Voltage Hysteresis.
Three Output Types: N-ch, P-ch and CMOS.
Space Saving Packages: TO-92, SOT-89,
SOT-23 and SOT23-5.
DESCRIPTION
The AIC1680 is an accurate, ultra-low power
consumption voltage detector IC, fabricated with
advanced CMOS process. The AIC1680 con-
sists of a comparator, a voltage reference unit, a
resistor divider, two output drivers, and a hyste-
resis circuit.
The consumption current is so low that it can
often be ignored when compared to the battery
self-discharge current. The values of detection
and hysteresis voltage are set internally and are
accurately controlled by trimming techniques.
There are three types of output: N-ch open-drain,
P-ch open-drain, and CMOS. Four types of
package,
TO-92,
SOT-89,
SOT-23
and
SOT-23-5, are available to save board space.
APPLICATIONS
Battery Checker for Battery-Operated Systems.
CPU & Logic Circuit Reset.
Memory Back-up Circuit.
Level Discriminator.
Power Failure Detector.
TYPICAL APPLICATION CIRCUIT
V
IN
V
IN
V
IN
VDD
100K
AIC1680N
VOUT
V
OUT
VDD
VDD
AIC1680P
VOUT
V
OUT
100K
AIC1680C
VOUT
V
OUT
GND
GND
GND
Voltage Level Indicator
(N-ch Open-Drain Output)
Voltage Level Indicator
(P-ch Open-Drain Output)
Voltage Level Indicator
(CMOS Output)
Analog Integrations Corporation
Si-Soft Research Center
3A1, No.1, Li-Hsin Rd. I, Science Park, Hsinchu 300, Taiwan, R.O.C.
TEL: 886-3-5772500
FAX: 886-3-5772510
www.analog.com.tw
DS-1680G-01 122608
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AIC1680
ELECTRICAL CHARACTERISTICS
(T
A
=25°C, unless otherwise specified.) (Note 1)
°
PARAMETER
Detector Voltage
Detector Threshold Hysteresis
V
DD
=2.0V
V
DD
=3.0V
Supply Current
V
DD
=4.5V
V
DD
=6.0V
V
DD
=10.0V
Operation Voltage
V
DS
=0.5V, V
DD
=2.4V
Output Current
V
DS
=0.5V, V
DD
=3.6V
V
DS
=0.5V, V
DD
=4.6V
V
DS
=0.5V, V
DD
=6.0V
Output Current
Temperature Coefficience
Output Delay Time
T
DELAY
V
DS
=-2.1V, V
DD
=4.5V
I
OUT
(Pch)
2
I
OUT
(Nch)
V
DD
1.5
3.24
5.85
7.74
10.44
3.5
±150
200
mA
ppm/°C
µS
I
DD
TEST CONDITIONS
SYMBOL
V
DET
V
HYS
MIN
0.975
0.03
TYP
1.0
0.05
0.7
0.9
1.3
1.8
3.2
MAX
1.025
0.07
1.1
1.5
2.0
2.7
4.8
10
V
mA
UNIT
V
DET
V
DET
µA
Note 1
:
Specifications are production tested at T
A
=25°C. Specifications over the -40°C to 85°C operating
temperature range are assured by design, characterization and correlation with Statistical Quality
Controls (SQC).
TYPICAL PERFORMANCE CHARACTERISTICS
3.5
3.0
Supply Current (µA)
T
A
=25°C
2.5
2.0
1.5
1.0
0.5
2
3
4
5
6
7
8
9
10
Fig. 1
Supply Voltage(V)
Supply Current vs. Supply Voltage
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