MAX865C View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX865C Datasheet PDF : 8 Pages
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Compact, Dual-Output Charge Pump
____________________________Typical Operating Characteristics (continued)
(Circuit of Figure 1, VIN = 5V, TA = +25°C, unless otherwise noted.)
OUTPUT VOLTAGE vs.
OUTPUT CURRENT
10
V+
8
6
4
V-
2 BOTH V+ AND
0 V- LOADED EQUALLY
-2 C1 = C2 = C3 = C4 = 3.3µF
-4 VIN = 4.75V
V-
-6
-8
-10
0
V+
2 4 6 8 10 12 14
OUTPUT CURRENT (mA)
OUTPUT VOLTAGE RIPPLE
vs. PUMP CAPACITANCE
400
C1 = C2 = C3 = C4
350
A: V+, IN = 4.75V, V+ + |V-| = 16V
300
B: V+, IN = 3.15V, V+ + |V-| = 10V
C: V+, IN = 1.90V, V+ + |V-| = 6V
250
D: V-, IN = 4.75V, V+ + |V-| = 16V
200
E: V-, IN = 3.15V, V+ + |V-| = 10V
F: V-, IN = 1.90V, V+ + |V-| = 6V
150
F
100
D AE
BC
50
0
0 5 10 15 20 25 30 35 40 45 50
PUMP CAPACITANCE (µF)
OUTPUT CURRENT
vs. PUMP CAPACITANCE
7
VIN = 4.75V, V+ + |V-| = 16V
6
5
VIN = 3.15V, V+ + |V-| = 10V
4
3
VIN = 1.90V, V+ + |V-| = 6V
2
1
C1 = C2 = C3 = C4
0
0 5 10 15 20 25 30 35 40 45 50
PUMP CAPACITANCE (µF)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
1000
900 C1 = C2 = C3 = C4 = 3.3µF
800
700
600
500
400
300
200
100
0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
SUPPLY VOLTAGE (V)
OUTPUT RESISTANCE
vs. TEMPERATURE
300
C1 = C2 = C3 = C4 = 3.3µF
250
V-, VIN = 3.3V
200
V-, VIN = 5.0V
150
100
V+, VIN = 3.3V
50
V+, VIN = 5.0V
0
-55 -35 -15 5 25 45 65 85 105 125
TEMPERATURE (°C)
PUMP FREQUENCY
vs. TEMPERATURE
27
VIN = 5.0V
25
23
VIN = 3.3V
21
VIN = 2.0V
19
OUTPUT RESISTANCE
vs. SUPPLY VOLTAGE
250
200
V-
150
V+
100
17 C1 = C2 = C3 = C4 = 3.3µF
50
C1 = C2 = C3 = C4 = 3.3µF
15
-40 -20
0 20 40 60
TEMPERATURE (°C)
80 100
0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
SUPPLY VOLTAGE (V)
_______________________________________________________________________________________ 3
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