TC7660 데이터 시트보기 (PDF) - TelCom Semiconductor Inc => Microchip
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TC7660 Datasheet PDF : 9 Pages
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CHARGE PUMP DC-TO-DC
VOLTAGE CONVERTER
1
TC7660
TYPICAL PERFORMANCE CHARACTERISTICS (Circuit of Figure 1)
Operating Voltage vs. Temperature
12
Power Conversion Eff. vs. Osc. Freq.
2
100
98
10
96 IOUT = 1 mA
8
6
4 SUPPLY VOLTAGE RANGE
94
92
90 IOUT = 15 mA
88
3
86
2
0
–55 –25 0 +25 +50 +75 +100 +125
TEMPERATURE (°C)
Output Source Resistance vs. Supply Voltage
10k
TA = +25°C
84
82
TA = +25°C
V+ = +5V
80
100
1k
10k
OSCILLATOR FREQUENCY (Hz)
4
Output Source Resistance vs. Temperature
500
IOUT = 1 mA
450
1k
100Ω
400
200
5
150
V + = +2V
100
V + = +5V
50
10Ω
0
12 34 5 678
SUPPLY VOLTAGE (V)
Freq. of Osc. vs. Ext. Osc. Capacitance
10k
TA = +25°C
V+ = +5V
0
–55 –25
0 +25 +50 +75 +100 +125
TEMPERATURE (°C)
6
Unloaded Osc. Freq. vs. Temperature
20 V+ = +5V
18
16
1k
14
7
12
100
10
10
1
10
100
1000
10k
OSCILLATOR CAPACITANCE (pF)
TELCOM SEMICONDUCTOR, INC.
8
6
–55 –25 0 +25 +50 +75 +100 +125
TEMPERATURE (°C)
8
4-53
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