MAX5021EUA-T Maxim Integrated Products, MAX5021EUA-T Datasheet - Page 4

• Manufacturer Part Number: MAX5021EUA-T
• Description: Current Mode PWM Controllers for Isolated Power Supplies
• Manufacturer: Maxim Integrated Products

Specifications of MAX5021EUA-T

• Number Of Outputs: 1
• Duty Cycle (max): 50 %
• Output Current: 250 mA
• Mounting Style: SMD/SMT
• Package / Case: uSOP-8
• Switching Frequency: 262 KHz
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Synchronous Pin: No
• Topology: Flyback, Forward

Current-Mode PWM Controllers for Isolated
Power Supplies
(V
4
IN
1.60
1.55
1.50
1.45
1.40
640
630
620
610
600
590
580
570
_______________________________________________________________________________________
= 15V, T
25
20
15
10
5
0
-40
230
-40
-3
+3
MEAN
-20
CURRENT SENSE THRESHOLD
-20
240
A
OSCILLATOR FREQUENCY
OSCILLATOR FREQUENCY (kHz)
= +25°C, unless otherwise noted.)
vs. TEMPERATURE
vs. TEMPERATURE
SUPPLY CURRENT
TEMPERATURE ( C)
250
TEMPERATURE ( C)
0
0
260
20
20
V
V
TOTAL NUMBER OF
DEVICES = 50
IN
OPTO
40
TOTAL NUMBER
OF DEVICES = 200
270
= 28.0V
40
= V
CS
60
280
60
= 0
80
290
80
9.15
9.12
9.09
9.06
9.03
9.00
Typical Operating Characteristics (continued)
75
70
65
60
55
50
25
20
15
10
5
0
-40
-40
540
V
V
OPTO = UNCONNECTED
IN
CS
560
-20
-20
CURRENT SENSE THRESHOLD (mV)
= 28.0V
= 0
CURRENT SENSE DELAY
vs. TEMPERATURE
vs. TEMPERATURE
580
CURRENT SENSE
MAXIMUM V
0
TEMPERATURE ( C)
TEMPERATURE ( C)
0
THRESHOLD
600
20
20
TOTAL NUMBER
OF DEVICES = 200
620
40
40
CC
640
60
60
660
80
80
8.30
8.20
8.10
8.00
7.90
7.80
7.70
280
275
270
265
260
255
250
245
6
5
4
3
2
1
0
-40
-40
-40
-3
-20
-20
-20
+3
MEAN
DELAY vs. TEMPERATURE
UNDERVOLTAGE LOCKOUT
OSCILLATOR FREQUENCY
vs. TEMPERATURE
vs. TEMPERATURE
TEMPERATURE ( C)
TEMPERATURE ( C)
TEMPERATURE ( C)
0
0
0
MINIMUM V
V
V
IN
IN
V
5mA LOAD ON V
V
OPTO = UNCONNECTED
RISING
FALLING
IN
CS
20
20
20
= 10.8V
= 0
TOTAL NUMBER
OF DEVICES = 50
40
40
40
CC
CC
60
60
60
80
80
80