MAX865 Maxim, MAX865 Datasheet - Page 3

• Manufacturer Part Number: MAX865
• Description: Compact / Dual-Output Charge Pump
• Manufacturer: Maxim

(Circuit of Figure 1, V
____________________________Typical Operating Characteristics (continued)
-10
10
-2
-4
-6
-8
8
6
4
2
0
0
BOTH V+ AND
V- LOADED EQUALLY
C1 = C2 = C3 = C4 = 3.3 F
V
IN
2
= 4.75V
1000
OUTPUT VOLTAGE vs.
OUTPUT CURRENT (mA)
900
800
700
600
500
400
300
200
100
25
23
21
19
17
27
15
OUTPUT CURRENT
4
0
-40
2.0
_______________________________________________________________________________________
IN
6
C1 = C2 = C3 = C4 = 3.3 F
C1 = C2 = C3 = C4 = 3.3 F
2.5 3.0
= 5V, T
-20
8
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
PUMP FREQUENCY
vs. TEMPERATURE
0
SUPPLY CURRENT
TEMPERATURE (°C)
10
A
Compact, Dual-Output Charge Pump
3.5 4.0
V
V
= +25°C, unless otherwise noted.)
V
IN
20
IN
IN
V+
12
= 5.0V
= 3.3V
= 2.0V
V-
V-
V+
40
14
4.5
60
5.0 5.5
400
350
300
250
200
150
100
80
50
0
100
0
6.0
C1 = C2 = C3 = C4
5 10 15
F
D
OUTPUT VOLTAGE RIPPLE
A
vs. PUMP CAPACITANCE
A: V+, IN = 4.75V, V+ + V- = 16V
B: V+, IN = 3.15V, V+ + V- = 10V
C: V+, IN = 1.90V, V+ + V- = 6V
D: V-, IN = 4.75V, V+ + V- = 16V
E: V-, IN = 3.15V, V+ + V- = 10V
F: V-, IN = 1.90V, V+ + V- = 6V
B
PUMP CAPACITANCE ( F)
E
C
20 25
30 35
250
200
150
100
300
250
200
150
100
50
50
0
0
-55
2.0
40 45
C1 = C2 = C3 = C4 = 3.3 F
C1 = C2 = C3 = C4 = 3.3 F
-35 -15
2.5
V-, V
50
IN
3.0 3.5
OUTPUT RESISTANCE
vs. SUPPLY VOLTAGE
OUTPUT RESISTANCE
vs. TEMPERATURE
SUPPLY VOLTAGE (V)
= 5.0V
TEMPERATURE (°C)
V+, V
5
V-
V+
25
IN
4.0 4.5
= 5.0V
7
6
5
4
3
2
1
0
V-, V
45 65
0
IN
V
V
V
= 3.3V
V+, V
IN
IN
IN
5 10 15
= 1.90V, V+ + V- = 6V
5.0 5.5
= 4.75V, V+ + V- = 16V
= 3.15V, V+ + V- = 10V
85 105
IN
vs. PUMP CAPACITANCE
PUMP CAPACITANCE ( F)
= 3.3V
OUTPUT CURRENT
125
20 25
6.0
C1 = C2 = C3 = C4
30 35
40 45
50
3