Max864 dual-output charge pump with shutdown, Typical operating characteristics (continued) – Rainbow Electronics MAX864 User Manual
Page 4
MAX864
Dual-Output Charge Pump with Shutdown
4
_______________________________________________________________________________________
____________________________Typical Operating Characteristics (continued)
(V
IN
= 5.0V, capacitor values in Table 1, T
A
= +25°C, unless otherwise noted.)
14
0
0
5
10 15
30
25
35
50
OUTPUT CURRENT vs. PUMP CAPACITANCE
(V
IN
= 4.75V, V+ +
V-
= 16V)
2
12
MAX864-10
PUMP CAPACITANCE (
µ
F)
OUTPUT CURRENT FROM V+ TO V- (mA)
20
40 45
6
10
8
4
185kHz
100kHz
7kHz
33kHz
C1 = C2 = C3 = C4
400
0
0
5
10 15
30
25
35
50
OUTPUT VOLTAGE RIPPLE
vs. PUMP CAPACITANCE
(V
IN
= 1.9V, V+ +
V-
= 6V)
50
350
MAX864-11
PUMP CAPACITANCE (
µ
F)
OUTPUT VOLTAGE RIPPLE (mVp-p)
20
40 45
200
150
300
250
100
7kHz
33kHz
100kHz
185kHz
C1 = C2 = C3 = C4
OUTPUT RIPPLE IS
MEASURED FOR THE
LOAD CURRENT INDICATED
IN THE "OUTPUT CURRENT
vs. PUMP CAPACITANCE"
GRAPH AT V
IN
= 1.9V.
600
0
0
5
10 15
30
25
35
50
OUTPUT VOLTAGE RIPPLE
vs. PUMP CAPACITANCE
(V
IN
= 3.15V, V+ +
V-
= 10V)
500
MAX864-12
PUMP CAPACITANCE (
µ
F)
OUTPUT VOLTAGE RIPPLE (mVp-p)
20
40 45
300
200
400
100
7kHz
33kHz
100kHz
185kHz
C1 = C2 = C3 = C4
OUTPUT RIPPLE IS
MEASURED FOR THE
LOAD CURRENT INDICATED
IN THE "OUTPUT CURRENT
vs. PUMP CAPACITANCE"
GRAPH AT V
IN
= 3.15V.
800
0
0
5
10 15
30
25
35
50
OUTPUT VOLTAGE RIPPLE
vs. PUMP CAPACITANCE
(V
IN
= 4.75V, V+ +
V-
= 16V)
700
MAX864-13
PUMP CAPACITANCE (
µ
F)
OUTPUT VOLTAGE RIPPLE (mVp-p)
20
40 45
400
300
200
600
500
100
7kHz
100kHz
33kHz
185kHz
C1 = C2 = C3 = C4
OUTPUT RIPPLE IS
MEASURED FOR THE
LOAD CURRENT INDICATED
IN THE "OUTPUT CURRENT
vs. PUMP CAPACITANCE"
GRAPH AT V
IN
= 4.75V.
600
0
1.0
2.0
4.0
6.0
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
500
MAX864-14
SUPPLY VOLTAGE (V)
SHUTDOWN SUPPLY CURRENT (nA)
3.0
5.0
300
200
400
100
3.0
0
-55
-15
-35
65
45
85
125
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
2.5
MAX864-15
TEMPERATURE (°C)
SHUTDOWN SUPPLY CURRENT (
µ
A)
25
5
105
1.5
1.0
2.0
0.5
V
IN
= 5.0V
V
IN
= 3.3V
7
0
-55
-15
-35
65
45
85
125
SUPPLY CURRENT vs. TEMPERATURE
(V
IN
= 3.3V)
6
MAX864-16
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
25
5
105
3
2
5
4
1
FC1 = 1, FC0 = 1
FC1 = 1, FC0 = 0
FC1 = 0, FC0 = 1
FC1 = 0, FC0 = 0
14
0
-55
-15
-35
65
45
85
125
SUPPLY CURRENT vs. TEMPERATURE
(V
IN
= 5V)
12
MAX864-17
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
25
5
105
6
4
10
8
2
FC1 = 1, FC0 = 1
FC1 = 1, FC0 = 0
FC1 = 0, FC0 = 1
FC1 = 0, FC0 = 0
200
0
-55
-15
-35
65
45
85
125
PUMP FREQUENCY
vs. TEMPERATURE
180
MAX864-18
TEMPERATURE (°C)
PUMP FREQUENCY (kHz)
25
5
105
100
80
60
160
140
120
20
40
FC1 = 1, FC0 = 1
FC1 = 1, FC0 = 0
FC1 = 0, FC0 = 1
FC1 = 0, FC0 = 0