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參數(shù)資料
| 型號(hào)： | TC660COA |
| 廠商： | TelCom Semiconductor, Inc. |
| 英文描述： | 100mA CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER |
| 中文描述： | 100mA的電荷泵型DC - DC電壓轉(zhuǎn)換器 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大?。?/td> | 122K |
| 代理商： | TC660COA |
4-8
TELCOM SEMICONDUCTOR, INC.
TC660
100mA CHARGE PUMP DC-TO-DC
VOLTAGE CONVERTER
TYPICAL CHARACTERISTICS
(Cont.)
Oscillator Frequency
vs. External Capacitance
13)
11)
12)
Oscillator Frequency
vs. Temperature
Oscillator Frequency
vs. Temperature
O
TEMPERATURE (
°
C)
TEMPERATURE (
°
C)
O
O
100
80
60
40
20
0
-40
20
40
-20
0
100
60
80
CAPACITANCE (pF)
100
10
1
0.1
0.011
2
5
20
10
10000
2000
100
500
FC = V+
FC = OPEN
Oscillator Frequency
vs. Supply Voltage
10)
SUPPLY VOLTAGE (V)
O
100
80
60
40
20
01.0
2.0
1.5
2.5 3.0 3.5 4.0 4.5 5.0 5.5
LV GROUNDED
FC = V+, OSC = OPEN
LV OPEN
FC = V+, OSC = OPEN
TC7660 and TC660 Output
Voltage and Power Efficiency
vs. Load Current, V
+ =
5V
14)
O
LOAD CURRENT (mA)
-3.0
-3.4
-3.8
-4.2
-4.6
-5.0
0
2.0
60
40
100
80
100
92
84
76
68
60
TC660
TC7660
EFF
VOUT
TC7660
TC660
P
12
10
8
6
4
2
0
-40
0
20
40
-20
80
60
100
FC= OPEN, OSC = OPEN
PIN DESCRIPTION
Pin No.
Symbol
Description
1
FC
Internal Oscillator frequency control. f
≈
10 kHz when FC
≈
OPEN;
≈
90 kHz when
FC = V
+
. FC has no effect if OSC is overdriven.
External capacitor, + terminal
Power-Supply Ground (Inverter) or Positive Input (Doubler)
External capacitor, – terminal
Negative Voltage output (Inverter) or Ground (Doubler)
"Low-Voltage" pin. Connect to GND Pin for inverter operation when V
IN
< 3V; leave
open or GND above 3V. When overdriving OSC, connect to GND.
For external control of internal OSC. Connect ext. C from OSC to GND (close to pkg.)
to reduce frequency of oscillator
Positive Voltage Input (Inverter) or Output (Doubler)
2
3
4
5
6
CAP
+
GND
CAP
–
V
OUT
LV
7
OSC
8
V
+
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