AIC1680
Ultra Low Power Voltage Detector
Analog Integrations Corporation 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC www.analog.com.tw
DS-1680-00 Dec 29, 00 TEL: 886-3-5772500 FAX: 886-3-5772510 1
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.
APPLICATIONS
Battery Checker for Battery-Operated Systems.
CPU & Logic Circuit Reset.
Memory Back-up Circuit.
Level Discriminator.
Power Failure Detector.
TYPICAL APPLICATION CIRCUIT
100K
A
IC1680N VOUT
VIN
VOUT
GND
VDD
Voltage Level Indicator (N-ch Open-Drain Output)
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
hysteresis 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.
AIC1680
2
ORDERING INFORMATION
ORDER NUMBER
AIC1680CU
(SOT-23)
PIN CONFIGURATION
FRONT VIEW
1: VOUT
2: VDD
3: GND
1
2
3
1
2
3
PACKAGING TYPE
U: SOT-23
X: SOT-89
Z: TO-92
V:SOT23-5
AIC1680CZ
(TO-92)
FRONT VIEW
1: VOUT
2: VDD
3: GND
DETECTION VOLTAGE OPTIONAL
16: 1.6V
17: 1.7V
:
:
60: 6.0V
OUTPUT TYPE
N: N-ch Open Drain
P: P-ch Open Drain
C: CMOS
A
IC1680XXXCX
AIC1680CX
(SOT-89)
123
FRONT VIEW
1: VOUT
2: VDD
3: GND
1
45
(MARK SIDE)
FRONT VIEW
1: VOUT
2: VDD
3: GND
4: NC
5: NC
AIC1680CV
(SOT-23-5)
23
ABSOLUTE MAXIMUM RATINS
Supply Voltage ...........................………………….....…….....…………............................ 10V
Output Voltage ……………………………………………………………………..Vss-0.3 to 10V
Operating Temperature Range ……….……...................………...................... -30°C ~ 80°C
Storage Temperature Range ...........…….....................…………................. - 65°C ~ 150°C
Lead Temperature (Soldering) 10 sec. ...........…..........………............………...….......260°C
Output Current ...........…..........……….…………………………...........………...….......20mA
AIC1680
3
ELECTRICAL CHARACTERISTICS (Test Conditions : Ta=25°
°°
°C )
SYMBOL PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VDET Detector Voltage 0.975 1.0 1.025 VDET
VHYS Detector Threshold Hysteresis 0.03 0.05 0.07 VDET
IDD Supply Current VDD=2.0V
VDD=3.0V
VDD=4.5V
VDD=6.0V
VDD=10.0V
0.7
0.9
1.3
1.8
3.2
1.1
1.5
2.0
2.7
4.8
µA
VDD Operation Voltage 1.5 10 V
IOUT (Nch) Output Current VDS=0.5V VDD=2.4V
VDS=0.5V VDD=3.6V
VDS=0.5V VDD=4.6V
VDS=0.5V VDD=6.0V
3.24
5.85
7.74
10.44
mA
IOUT (Pch) Output Current VDS=-2.1V VDD=4.5V 3.5 mA
Temperature Coeficience ±150 ppm/°C
TDELAY Output Delay Time 200 µS
BLOCK DIAGRAM
VOUT
VDD
GND
1.25V
-
+
VOUT
VDD
-
+
GND
1.25V
N-ch open drain output P-ch open drain output
-
+
VD D
VOU T
GND
1.25V
CMOS output
AIC1680
4
PIN DESCRIPTIONS
VDD: Power Supply and Detected Voltage Input.
GND: Ground.
Vout: Detector Output
TYPICAL PERFORMANCE CHARACTERISTICS
2345678910
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Ta = 2 5 °C
Supply Current vs. Supply Voltage
Supply Current (µA)
Supply Voltage(V)
N-ch Driver Sinking Current vs. VDS
012345
0
1
2
3
4
5
VDET=1.8V
VDD=1.3V
VDD=1.5V
VDD=1.7V
S
inkin
g
Cu
rr
e
n
t
(
mA
)
VDS (V)
VDET=1.8V
Sinking Current (mA)
VDS (V)
012345
0.2
0.4
0.6
0.8
1.0
1.2
1.4
VDD=1.1V
VDD=0.9V
AIC1680
5
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
0 12345
2
4
6
8
10
VDET=2.5V
VDD =2.2V
VDD =2.4V
Sinking Current (mA)
VDS (V)
VDET=2.5V
Sinking Current (mA)
VDS (V)
0 12345
1
2
3
4
5
6
7
VDD =1.8V
VDD =2.0V
VDET=4.5V
Sinkin
g
Current
(
mA
)
VDS (V)
012345
0
5
10
15
20
25
30
VDD =4.0V
VDD =4.4V
VDET=4.5V
Sinking Current (mA)
VDS (V)
012345
0
5
10
15
20
VDD =3V
VDD =3.5V
P-ch Driver Output Current vs. VDS
VDET=1.8V
Output Current (mA)
VDD (V)
246810
0
1
2
3
4
5
6
VDS=1.5V
VDS=1.0V
VDS=0.5V
VDET=2.5V
Output Current (mA)
VDD (V)
2345678910
0
1
2
3
4
5
6
VDS=-1.5V
VDS=-1.0V
VDS=-0.5V
AIC1680
6
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
VDET=4.5V
Output Current (mA)
VDD (V)
5678910
1
2
3
4
5
6
VDS =-1.5V
VDS =-1.0V
VDS =-0.5V
APPLICATION INFORMATIONS
The timing diagram of VDD and VOUT is shown in below:
CMOS Type
VOUT
VHYS
VDD
0.8V
VDET
NMOS Type
VOUT
VHYS
VDD
0.8V
VDET
The guaranteed minimun operation voltage is 1.5V.
As the supply voltage(VDD) is reduced below 1.5V,
the performance degrades, N-ch or P-ch driving ca-
pacity degrades, and the supply current decreases.
AIC1680 isn’t functioning when VDD down to 0.8V.
AIC1680
7
PHYSICAL DIMENSIONS
SOT-23 (unit: mm)
SYMBOL MIN MAX
A 1.00 1.30
A1 — 0.10
A2 0.70 0.90
b 0.35 0.50
C 0.10 0.25
D 2.70 3.10
E 1.40 1.80
e 1.90 (TYP)
H 2.60 3.00
L0.37—
H
A1
A
A2
b
θ1
L
C
D
E
e
θ11˚9˚
SOT-23 Marking
Part No. Marking Part No. Marking
AIC1680-N16CU U16N AIC1680-N59CU U59N
AIC1680-P16CU U16P AIC1680-P59CU U59P
AIC1680-C16CU U16C AIC1680-C59CU U59C
AIC1680-N17CU U17N AIC1680-N60CU U60N
AIC1680-P17CU U17P AIC1680-P60CU U60P
AIC1680-C17CU U17C AIC1680-C60CU U60C
…….….
(0.1V INCREMENT)
AIC1680
8
SOT-89 (unit: mm)
SYMBOL MIN MAX
A 1.40 1.60
B 0.36 0.48
C 0.35 0.44
D 4.40 4.60
D1 1.62 1.83
E 2.29 2.60
e 1.50 (TYP.)
e1 3.00 (TYP.)
H 3.94 4.25
B
e
H
e1
D
D1
A
C
L
E
L 0.89 1.20
SOT-89 Marking
Part No. Marking Part No. Marking
AIC1680-N16CX X16N AIC1680-N59CX X59N
AIC1680-P16CX X16P AIC1680-P59CX X59P
AIC1680-C16CX X16C AIC1680-C59CX X59C
AIC1680-N17CX X17N AIC1680-N60CX X60N
AIC1680-P17CX X17P AIC1680-P60CX X60P
AIC1680-C17CX X17C AIC1680-C60CX X60C
…….….
(0.1V INCREMENT)
TO-92 (unit: mm)
SYMBOL MIN MAX
A 4.32 5.33
C 0.38 (TYP.)
D 4.40 5.20
E 3.17 4.20
e1 1.27 (TYP.)
AL
e1
D
C
E
L 12.7 -
AIC1680
9
SOT-23-5 (unit: mm)
SYMBOL MIN MAX
A 1.00 1.30
A1 — 0.10
A2 0.70 0.90
b 0.35 0.50
C 0.10 0.25
D 2.70 3.10
E 1.40 1.80
e 1.90 (TYP)
H 2.60 3.00
L0.37—
E
e
D
H
A1
A
A2
b
L
θ1
C
θ11°9°
SOT-23-5 Marking
Part No. Marking Part No. Marking
AIC1680-N16CV V16N AIC1680-N59CV V59N
AIC1680-P16CV V16P AIC1680-P59CV V59P
AIC1680-C16CV V16C AIC1680-C59CV V59C
AIC1680-N17CV V17N AIC1680-N60CV V60N
AIC1680-P17CV V17P AIC1680-P60CV V60P
AIC1680-C17CV V17C AIC1680-C60CV V60C
…….….
(0.1V INCREMENT)
