LX1555CDT データシートの表示（PDF） - Microsemi Corporation
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LX1555CDT Datasheet PDF : 18 Pages
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PRODUCT DATABOOK 1996/1997
LX1552/3/4/5
ULTRA-LOW START-UP CURRENT, CURRENT-MODE PWM
PRODUCTION DATA SHEET
CHARACTERISTIC CURVES
FIGURE 1. — OSCILLATOR FREQUENCY vs. TIMING RESISTOR
1000
100 CT = 6.8nF
CT = 1nF
CT = 3.3nF
10
CT = 22nF
1
CT = 47nF
CT = 0.1µF
VCC = 15V
TA = 25°C
0.1
0.1
1
10
100
(RT) Timing Resistor - (k )
FIGURE 2. — MAXIMUM DUTY CYCLE vs. TIMING RESISTOR
100
90
80
70
60
50
40
30
20
10
0
0.1
VCC = 15V
TA = 25°C
1
10
100
(RT) Timing Resistor - (k )
FIGURE 3. — OSCILLATOR DISCHARGE CURRENT vs.
TEMPERATURE
8.50
8.40
VCC = 15V
VPIN4 = 2V
8.30
8.20
8.10
8.00
7.90
7.80
7.70
-75 -50 -25 0 25 50 75 100 125
(TA) Ambient Temperature - (°C)
FIGURE 4. — OSCILLATOR FREQUENCY vs. TEMPERATURE
55
54
VCC = 15V
RT = 10k
53
CT = 3.3nF
52
51
50
49
48
47
46
45
-75 -50 -25 0 25 50 75 100 125
(TA) Ambient Temperature - (°C)
6
Copyright © 1994
Rev. 1.0a 1/01
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