TC660 Ver la hoja de datos (PDF) - TelCom Semiconductor, Inc
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TC660 Datasheet PDF : 8 Pages
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100mA CHARGE PUMP DC-TO-DC
VOLTAGE CONVERTER
1
TC660
TYPICAL CHARACTERISTICS
2 All curves are generated using the test circuit of Figure 1 with V+ = 5V, LV = GND, FC = open, and TA = +25°C, unless
otherwise noted.
1)
600
Supply Current vs.
Supply Voltage
500
DOUBLER MODE
400
LV = OUT
300
200
LV = OPEN
100
LV = GND
0
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
2)
10,000
Supply Current vs.
Oscillator Frequency
1000
DOUBLER MODE
100
10
INVERTING MODE
1
0.01
0.1
1
10
100
OSCILLATOR FREQUENCY (kHz)
3)
100
92
84
76
68
60
0
Efficiency vs.
Load Current
V+ = 5.5V
V+ = 3.5V
V+ = 4.5V
V+ = 2.5V
V+ = 1.5V
20
40
60
80 100
LOAD CURRENT (mA)
3
4
4)
2.0
Output Voltage Drop
vs. Load Current
5)
-5.0
Output Voltage vs.
Oscillator Frequency
1.6
1.2
V+ = 1.5V
0.8
V+ = 2.5V
V+ = 3.5V
V+ = 4.5V
0.4
0
0
V+ = 5.5V
20
40
60
80 100
LOAD CURRENT (mA)
ILOAD = 10mA
-4.5
ILOAD = 1mA
ILOAD = 80mA
-4.0
-3.5
-3.0
0.1 0.2 0.4 1 2 4 10 20 40 100
OSCILLATOR FREQUENCY (kHz)
6)
Efficiency vs.
Oscillator Frequency
100
96
ILOAD = 10mA
92
88
84
80
ILOAD =
80mA
76
72
68
64
ILOAD = 1mA
60
0.1 0.2 0.4 1 2 4 10 20 40 100
OSCILLATOR FREQUENCY (kHz)
5
6
7) Output Source Resistance
vs. Supply Voltage
15
12
9
6
3
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
8) Output Source Resistance
vs. Temperature
16
14
V+ = 1.5VDC
12
10
V+ = 3VDC
8
6
V+ = 5VDC
4
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
TELCOM SEMICONDUCTOR, INC.
9)
12
10
8
Oscillator Frequency
vs. Supply Voltage
LV GROUNDED
LV OPEN
6
FC = OPEN, OSC = OPEN
4
2
0
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
7
8
4-7
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