TC7662A 查看數據表（PDF） - TelCom Semiconductor Inc => Microchip
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TC7662A Datasheet PDF : 5 Pages
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CHARGE PUMP
DC-TO-DC CONVERTER
1
TYPICAL CHARACTERISTICS
Supply Current vs. Temperature
700
600
500
400
V + = 15V
300
200
V+ = 5V
100
0
–60 –40 –20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
Frequency vs. Temperature
20
18
16
14
12
10
8
6
–60 –40 –20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
Power Conversion Efficiency vs. I LOAD
110
165
100
150
90
135
80 EFFICIENCY
120
70
105
60
90
50
SUPPLY
75
40
CURRENT
60
30
45
20
30
10
TA = +25°C 15
0
0 8 16 24 32 40 48 56 64 72 80
LOAD CURRENT (mA)
TELCOM SEMICONDUCTOR, INC.
TC7662A
Oscillator Frequency vs. CEXT
2
TA = +25°C
10k
1k
3
100
10
1
10
100
1000
10,000
CAPACITANCE (pF)
4
Output Resistance vs. Temperature
160
140
120
V += 5V, IL = 3 mA
100
5
80
60
40
V+ = 15V, IL = 20 mA
20
–60 –40 –20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
6
Output Resistance vs. Input Voltage
110
100
TA = +25°C
90
80
70
7
60
20 mA
50
40
30
20
10
0
2 4 6 8 10 12 14 16 18 20
8
INPUT VOLTAGE (V)
4-81
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