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TC660 Datenblatt(PDF) 4 Page - TelCom Semiconductor, Inc

Teilenummer TC660
Bauteilbeschribung  100mA CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
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Hersteller  TELCOM [TelCom Semiconductor, Inc]
Direct Link  http://www.telcom-semi.com
Logo TELCOM - TelCom Semiconductor, Inc

TC660 Datenblatt(HTML) 4 Page - TelCom Semiconductor, Inc

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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
TEMPERATURE (
°C)
TEMPERATURE (
°C)
100
80
60
40
20
0
-40
20
40
-20
0
100
60
80
CAPACITANCE (pF)
100
10
1
0.1
0.01
12
5
20
10
10000
2000
100
500
FC = V+
FC = OPEN
Oscillator Frequency
vs. Supply Voltage
10)
SUPPLY VOLTAGE (V)
100
80
60
40
20
0
1.0
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)
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
12
10
8
6
4
2
0
0
20
40
-20
-40
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.
2
CAP+
External capacitor, + terminal
3
GND
Power-Supply Ground (Inverter) or Positive Input (Doubler)
4
CAP
External capacitor, – terminal
5VOUT
Negative Voltage output (Inverter) or Ground (Doubler)
6
LV
"Low-Voltage" pin. Connect to GND Pin for inverter operation when VIN < 3V; leave
open or GND above 3V. When overdriving OSC, connect to GND.
7
OSC
For external control of internal OSC. Connect ext. C from OSC to GND (close to pkg.)
to reduce frequency of oscillator
8V+
Positive Voltage Input (Inverter) or Output (Doubler)


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