CS8140/1
Typical Performance Characteristics: continued
Quiescent Current vs. V
IN
over R
LOAD
; T = 25¡C
20
V
ENABLE
= V
IN
18
16
14
12
10
8
6
4
2
0
0
1
2
3
4
5
6
7
8
9
10
R
load
= 25
R
load
= NO LOAD
Quiescent Current vs. V
IN
over Temperature; R
LOAD
= 25�½
20
V
ENABLE
= V
IN
18
16
TEMP = 25°C
14
12
10
8
6
TEMP = 125°C
4
2
0
0
1
2
3
4
5
6
7
8
9
10
TEMP =- 40°C
I
Q
(mA)
R
load
= 6.67
V
IN
(V)
I
Q
(mA)
V
IN
(V)
Watchdog Frequency Thresholds vs. Temperature
10
7
300
280
260
240
Watchdog Frequency Threshold vs C
DELAY
10
6
Upper Threshold
10
5
FREQUENCY (Hz)
220
200
WDI THRESHOLD
C
DELAY
= 0.1mF
180
160
140
120
10
4
Upper Threshold
10
3
Lower Threshold
10
2
Lower Threshold
100
80
60
-40 -30 -20 -10
0
10
20 30 40 50 60 70 80
90 100 110 120 130 140 150
10
1
10
0
10
1
10
2
10
3
10
4
10
5
10
6
10
7
T
J
(°C)
CAPACITANCE (pF)
Ripple Rejection vs Frequency
90
80
70
RESET OUTPUT VOLTAGE (mV)
2000
RESET Output Voltage vs Output Current
I
O
=250mA
1800
1600
1400
1200
1000
800
600
400
200
0
V
IN
= 5V
REJECTION (dB)
C
O
= 10mF, ESR=1&0.1mF, ESR=0
60
50
40
30
C
O
= 10mF,ESR=1W
20
10
0
10
0
10
1
10
2
10
3
C
O
= 10mF, ESR=10W
10
4
10
5
10
6
10
7
10
8
1
5
10
15
20
25
30
35
40
FREQUENCY (Hz)
RESET OUTPUT CURRENT (mA)
5
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
