Datasheet

MAX5014/MAX5015
Current-Mode PWM Controllers with Integrated
Startup Circuit for Isolated Power Supplies
4 _______________________________________________________________________________________
46.8
47.2
47.0
47.6
47.4
47.8
48.0
-40 20 40-20 0 60 80
MAX5015 MAXIMUM DUTY CYCLE
vs. TEMPERATURE
MAX5014 toc04
TEMPERATURE (
°
C)
MAX DUTY CYCLE (%)
V
OPTO
= 4V, CS = GND
V+ SUPPLY CURRENT
vs. TEMPERATURE
MAX5014 toc05
1.38
1.39
1.41
1.40
1.44
1.45
1.43
1.42
1.46
V+ INPUT CURRENT (mA)
-40 0 20-20
40
60 80
TEMPERATURE (
°
C)
V
OPTO
= 4V, V
DD
= CS = GND
4.50
4.65
4.60
4.55
4.75
4.70
4.95
4.90
4.85
4.80
5.00
-40-200 20406080
SOFT-START SOURCE CURRENT
vs. TEMPERATURE
MAX5014 toc06
TEMPERATURE (
°
C)
SOFT-START SOURCE CURRENT (µA)
V
DD
= 0, V+ = 110V, OPTO =
CS = SS_SHDN = GND
11.00
11.05
11.15
11.10
11.20
11.25
-40 0-20 20 40 60 80
V+ INPUT CURRENT vs.
TEMPERATURE (AFTER STARTUP)
MAX5014 toc07
TEMPERATURE (
°
C)
V+ INPUT CURRENT (µA)
V+ = 110V, V
OPTO
= 4V,
CS = GND, V
DD
= 13V
185
188
187
186
190
189
194
193
192
191
195
-40 -20 0 20 40 60 80
V+ SHUTDOWN CURRENT
vs. TEMPERATURE
MAX5014 toc08
TEMPERATURE (
°
C)
V+ SHUTDOWN CURRENT (µA)
V+ = 110V, OPTO = SS_SHDN =
CS = GND, V
DD
= 13V
0.483
0.484
0.486
0.485
0.487
0.488
-40 0-20 20 40 60 80
CS THRESHOLD VOLTAGE
vs. TEMPERATURE
MAX5014 toc09
TEMPERATURE (
°
C)
CS THRESHOLD VOLTAGE (V)
V
OPTO
= 4V, V+ = 110V
NDRV RESISTANCE
vs. TEMPERATURE
MAX5014 toc10
1.0
1.5
2.5
2.0
4.0
4.5
3.5
3.0
5.0
NDRV RESISTANCE (Ω)
-40 0 20-20
40
60 80
TEMPERATURE (°C)
HIGH-SIDE DRIVER
LOW-SIDE DRIVER
170
176
174
172
180
178
188
186
184
182
190
-40 -20 0 20 40 60 80
CURRENT-LIMIT DELAY
vs. TEMPERATURE
MAX5014 toc11
TEMPERATURE (°C)
CURRENT LIMIT DELAY (ns)
V
OPTO
= 4V, 100mV OVERDRIVE ON CS
2.400
2.402
2.406
2.404
2.408
2.410
010155 2025303540
V
SS_SHDN
vs. V
DD
MAX5014 toc12
V
DD
(V)
V
SS_SHDN
(V)
Typical Operating Characteristics (continued)
(V+ = 48V, V
DD
= 13V, NRDV is open circuit, T
A
= +25°C, unless otherwise noted.)