MAX5019 Ver la hoja de datos (PDF) - Maxim Integrated
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MAX5019 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.)
MAX5020
MAXIMUM DUTY CYCLE
vs. TEMPERATURE
48.0
47.8
FB = GND
47.6
47.4
47.2
47.0
46.8
-40 -20 0
20 40 60 80
TEMPERATURE (°C)
V+ INPUT CURRENT vs.
TEMPERATURE (AFTER STARTUP)
13.80
13.75
13.70
V+ = 110V, VDD = 13V, FB = GND
13.65
13.60
13.55
V+ SUPPLY CURRENT
vs. TEMPERATURE
1.64
1.63
1.62
1.61
FB = VDD = GND
1.60
1.59
1.58
1.57
1.56
1.55
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
V+ SHUTDOWN CURRENT
vs. TEMPERATURE
182.5
182.0
181.5
V+ = 110V, FB = SS_SHDN = GND
181.0
180.5
180.0
179.5
SOFT-START SOURCE CURRENT
vs. TEMPERATURE
4.50
4.49
VDD = FB = SS_SHDN = GND
4.48
4.47
V+ = 110V
4.46
4.45
4.44
4.43
4.42
4.41
4.40
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
CS THRESHOLD VOLTAGE
vs. TEMPERATURE
0.488
0.487
0.486
FB = GND
0.485
0.484
13.50
-40 -20 0
20 40 60 80
TEMPERATURE (°C)
179.0
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
0.483
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
NDRV RESISTANCE
vs. TEMPERATURE
5.0
4.5
4.0
HIGH-SIDE DRIVER
3.5
3.0
2.5
2.0
LOW-SIDE DRIVER
1.5
1.0
-40 -20 0
20 40
60 80
TEMPERATURE (°C)
CURRENT-LIMIT DELAY
vs. TEMPERATURE
210
208
206
FB = GND, 100mV OVERDRIVE ON CS
204
202
200
198
196
194
192
190
188
-40 -20 0
20 40 60 80
TEMPERATURE (°C)
VSS_SHDN vs. VDD
2.410
2.408
2.406
2.404
2.402
2.400
0
5 10 15 20 25 30 35 40
VDD (V)
4 _______________________________________________________________________________________
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