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RT9801BGE

P1-P3P4-P6P7-P9
RT9801A/B
4
DS9801A/B-13 April 2011www.richtek.com
Table 1: Pin Conditions for Programmable Threshold Voltage Setting
RT9801A RT9801B VSET0 VSET1 VSET2
5.0 4.0
H
H H
4.9 3.9
H
H F
4.8 3.8
H
H L
4.7 3.7
H
F H
4.6 3.6
H
F F
4.5 3.5
H
F L
4.4 3.4
H
L H
4.3 3.3
H
L F
4.2 3.2
H
L L
4.1 3.1 F H H
4.0 3.0 F H F
3.9 2.9 F H L
3.8 2.8
F
F H
3.7 2.7
F
F F
3.6 2.6
F
F L
3.5 2.5
F
L H
3.4 2.4
F
L F
3.3 2.3
F
L L
3.2 2.2
L
H H
3.1 2.1
L
H F
3.0 2.0
L
H L
2.9 1.9
L
F H
2.8 1.8
L
F F
2.7 1.7
L
F L
2.6 1.6
L
L H
2.5 1.5
L
L F
Note : 1. H : Connected to VDD
2. L : Connected to GND
3. F : Floating
RT9801A/B
5
DS9801A/B-13 April 2011 www.richtek.com
Typical Operating Characteristics
V
RESET
vs. V
DD
0
1
2
3
4
5
6
7
0.0 1.0 2.0 3.0 4.0 5.0 6.0
V
DD
(V)
V
RESET
(V)
2.0V
2.4V
4.5V
3.0V
5.0V
T
A
= 25°C
N-Ch Driver Sink Current vs. V
RESET
0
1
2
3
4
5
6
7
00.511.522.53
V
RESET
(V)
Sink Current I
SINK
(mA)
V
DD
= 1.7V
V
DD
= 1.5V
T
A
= 25°C
V
TH
= 2V
N-Ch Driver Sink Current vs. V
RESET
0
2
4
6
8
10
12
00.511.522.53
V
RESET
(V)
Sink Current I
SINK
(mA)
T
A
= 25°C
V
TH
= 2.4V
V
DD
= 2.0V
V
DD
= 2.2V
V
DD
= 1.5V
N-Ch Driver Sink Current vs. V
RESET
0
6
12
18
24
30
36
01234
V
RESET
(V)
Sink Current I
SINK
(mA)
T
A
= 25°C
V
TH
= 4.5V
V
DD
= 3.5V
V
DD
= 4.0V
V
DD
= 3.0V
V
DD
= 2.0V
V
DD
= 2.5V
V
DD
= 1.5V
N-Ch Driver Sink Current vs. V
RESET
0
3
6
9
12
15
18
00.511.522.53
V
RESET
(V)
Sink Current I
SINK
(mA)
T
A
= 25°C
V
TH
= 3V
V
DD
= 2.0V
V
DD
= 2.8V
V
DD
= 1.5V
N-Ch Driver Sink Current vs. V
RESET
0
8
16
24
32
40
012345
V
RESET
(V)
Sink Current I
SINK
(mA)
T
A
= 25°C
V
TH
= 5V
V
DD
= 3.5V
V
DD
= 4.0V
V
DD
= 3.0V
V
DD
= 2.0V
V
DD
= 2.5V
V
DD
= 1.5V
V
DD
= 4.5V
RT9801A/B
6
DS9801A/B-13 April 2011www.richtek.com
Reset Threshold Deviation vs. Temperature
2.4
2.8
3.2
3.6
4
4.4
4.8
5.2
-40 -15 10 35 60 85
Temperature
Threshold Voltage (V)
(°C)
V
TH
= 5V
V
TH
= 4.5V
V
TH
= 3V
V
TH
= 2.5V
Supply Current vs. Input Voltage
0
1
2
3
4
0123456
Input Voltage V
DD
(V)
Supply Current I
DD
(uA)
T
A
= -30°C
T
A
= 25°C
T
A
= 80°C
V
TH
= 2V
Supply Current vs. Input Voltage
0
1
2
3
4
0246
Input Voltage V
DD
(V)
Supply Current I
DD
(uA)
T
A
= -30°C
T
A
= 25°C
T
A
= 80°C
V
TH
= 2.4V
Supply Current vs. Input Voltage
0
1
2
3
4
5
0123456
Input Voltage V
DD
(V)
Supply Current I
DD
(uA)
T
A
= -30°C
T
A
= 25°C
T
A
= 80°C
V
TH
= 4.5V
Supply Current vs. Input Voltage
0
1
2
3
4
0123456
Input Voltage V
DD
(V)
Supply Current I
DD
(uA)
T
A
= -30°C
T
A
= 25°C
T
A
= 80°C
V
TH
= 3V
Supply Current vs. Input Voltage
0
1
2
3
4
5
0123456
Input Voltage V
DD
(V)
Supply Current I
DD
(uA)
V
TH
= 5V
T
A
= -30°C
T
A
= 25°C
T
A
= 80°C
P1-P3P4-P6P7-P9

RT9801BGE

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IC VOLT DETECTOR PROG SOT23-6
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