CAT661 Datasheet, PDF (6/16 Pages) Catalyst Semiconductor – High Frequency 100mA CMOS Charge Pump, Inverter/Doubler

CAT661
Figure 2. Test Circuit Voltage Doubler
V+
C1
100µF
+
V+
5V
1
BOOST/FC
8
V+
2
7
CAP+
OSC
3 ^CAT661 6
GND
LV
4 _CAP-
OUT ⁵
10V VOUT
External
Oscillator
C2
100µF
TYPICAL OPERATING CHARACTERISTICS
Typical characteristic curves are generated using the circuit in Figure 2. Doubler test conditions are: V+ 5V, LV = GND,
BOOST/FC = Open and T_A = 25˚C unless otherwise indicated.
Supply Current vs. Input Voltage (No Load)
Output Resistance vs. Input Voltage
3000
10
2500
2000
1500
1000
500
8
6
FC = V+
4
FC = open
2
0
0
1
2
3
4
5
6
INPUT VOLTAGE [V]
Supply Current vs. Oscillator Frequency
0
1
2
3
4
5
6
INPUT VOLTAGE [V]
Output Voltage Drop vs. Load Current
10000
1.0
No Load
0.8
1000
0.6
100
10
1
10
100
1000
OSCILLATOR FREQUENCY [KHz]
0.4
0.2
0.0
0
V+ = 3V
V+ = 5V
20 40 60 80 100
LOAD CURRENT [mA]
Doc. No. 5003, Rev. J
6