Rainbow-electronics MAX1697 Bedienungsanleitung Seite 6

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Seitenansicht 5
MAX1697
60mA, SOT23 Inverting Charge Pump
with Shutdown
6 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(Circuit of Figure 1, capacitors from Table 2, V
IN
= +5V, SHDN = IN, T
A
= +25°C, unless otherwise noted.)
0V
SHDN
0V
MAX1697S
(35kHz)
V
OUT
, 2V/div
MAX1697R
(12kHz)
V
OUT
, 2V/div
START-UP FROM SHUTDOWN
MAX1697 TOC19
400µs/div
0
20
10
40
30
60
50
70
0 10152052530354540 50
MAX1697R
OUTPUT CURRENT
vs. CAPACITANCE
MAX1697 TOC21
CAPACITANCE (µF)
OUTPUT CURRENT (mA)
V
IN
= +4.75V, V
OUT
= -4.0V
V
IN
= +1.9V, V
OUT
= -1.5V
V
IN
= +3.15V, V
OUT
= -2.5V
0
20
10
40
30
60
50
70
80
0 1015205 2530354045
MAX1697S
OUTPUT CURRENT
vs. CAPACITANCE
MAX1697 TOC22
CAPACITANCE (µF)
OUTPUT CURRENT (mA)
V
IN
= +1.9V, V
OUT
= -1.5V
V
IN
= +3.15V, V
OUT
= -2.5V
V
IN
= +4.75V, V
OUT
= -4.0V
0
100
50
200
150
300
250
350
450
400
500
010152052530354540 50
MAX1697R
OUTPUT RIPPLE vs. CAPACITANCE
MAX1697 TOC25
CAPACITANCE (µF)
OUTPUT RIPPLE (mV)
V
IN
= +1.9V, V
OUT
= -1.5V
V
IN
= +3.15V, V
OUT
= -2.5V
V
IN
= +4.75V, V
OUT
= -4.0V
0
20
10
40
30
60
50
70
0 2341 567 9810
MAX1697T
OUTPUT CURRENT
vs. CAPACITANCE
MAX1697 TOC23
CAPACITANCE (µF)
OUTPUT CURRENT (mA)
V
IN
= +3.15V, V
OUT
= -2.5V
V
IN
= +4.75V, V
OUT
= -4.0V
V
IN
= +1.9V, V
OUT
= -1.5V
0
20
10
40
30
60
50
70
80
0 2341 567 9810
MAX1697U
OUTPUT CURRENT
vs. CAPACITANCE
MAX1697 TOC24
CAPACITANCE (µF)
OUTPUT CURRENT (mA)
V
IN
= +1.9V, V
OUT
= -1.5V
V
IN
= +3.15V, V
OUT
= -2.5V
V
IN
= +4.75V, V
OUT
= -4.0V
0
100
50
200
150
300
250
350
450
400
500
0 10152052530354540 50
MAX1697S
OUTPUT RIPPLE vs. CAPACITANCE
MAX1697 TOC26
CAPACITANCE (µF)
OUTPUT RIPPLE (mV)
V
IN
= +1.9V, V
OUT
= -1.5V
V
IN
= +3.15V, V
OUT
= -2.5V
V
IN
= +4.75V, V
OUT
= -4.0V
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