MAX5019ESA Ver la hoja de datos (PDF) - Maxim Integrated
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MAX5019ESA Datasheet PDF : 14 Pages
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Current-Mode PWM Controllers with Integrated
Startup Circuit
Typical Operating Characteristics (continued)
(V+ = 48V, VDD = 13V, CS = GND, NRDV is open circuit, TA = +25°C, unless otherwise noted.)
271.0
270.5
270.0
269.5
269.0
268.5
268.0
267.5
267.0
0
NDRV FREQUENCY vs. VDD
FB = GND
5 10 15 20 25 30 35 40
VDD (V)
MAX5020
MAXIMUM DUTY CYCLE vs. VDD
48.0
47.9
47.8
VFB = 4V, CS = GND
47.7
47.6
47.5
DEVICE POWERED
47.4
FROM VDD
47.3
47.2 DEVICE POWERED
47.1 FROM V+
47.0
0
5 10 15 20 25 30 35 40
VDD (V)
VCC vs. VDD
10.2
10.1
DEVICE POWERED FROM VDD
10.0
9.9
FB = GND
9.8
9.7
9.6
9.5
0
DEVICE POWERED
FROM V+
5 10 15 20 25 30 35 40
VDD (V)
1.60
1.59
1.58
1.57
1.56
1.55
1.54
1.53
1.52
1.51
0
V+ SUPPLY CURRENT vs.
V+ VOLTAGE
VFB = VDD = GND
20 40 60 80 100
V+ VOLTAGE (V)
V+ SUPPLY CURRENT vs. V+ VOLTAGE
(AFTER STARTUP)
16
14
12
VDD = 13V, FB = GND
10
8
6
4
2
0
0 10 20 30 40 50 60 70 80 90 100 110
V+ VOLTAGE (V)
VCC VOLTAGE vs. VCC CURRENT
10.4
V+ = 110V, VFB = 4V
10.2
VDD = 36V
10.0
9.8
VDD = 13V
9.6
9.4
9.2
9.0
0
5.0
10.0
15.0
20.0
VCC CURRENT (mA)
VCC VOLTAGE vs. VCC CURRENT
10.0
9.9
VDD = GND, VFB = 4V
V+ = 110V
9.8
V+ = 90V
9.7
V+ = 72V
V+ = 48V
9.6
9.5
V+ = 36V
9.4
V+ = 24V
9.3
9.2
9.1
9.0
0
5.0
10.0
15.0
20.0
VCC CURRENT (mA)
_______________________________________________________________________________________ 5
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