MAX8540EEE+ Maxim Integrated Products, MAX8540EEE+ Datasheet - Page 6

• Manufacturer Part Number: MAX8540EEE+
• Description: IC PWM CTRLR CURR-MODE 16-QSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX8540EEE+

• Pwm Type: Current Mode
• Number Of Outputs: 1
• Frequency - Max: 1MHz
• Duty Cycle: 82%
• Voltage - Supply: 7.6 V ~ 18 V
• Buck: No
• Boost: No
• Flyback: Yes
• Inverting: No
• Doubler: No
• Divider: Yes
• Cuk: No
• Isolated: Yes
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-QSOP
• Frequency-max: 1MHz
• Duty Cycle (max): 80 %
• Mounting Style: SMD/SMT
• Switching Frequency: 200 KHz to 1000 KHz
• Maximum Operating Temperature: + 85 C
• Fall Time: 53 ns
• Minimum Operating Temperature: - 40 C
• Rise Time: 57 ns
• Synchronous Pin: Yes
• Topology: Flyback, Forward
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Synchronizable, High-Frequency Current- and
Voltage-Mode PWM Controllers for Isolated Supplies
(V
6
CC
6.0
5.8
5.6
5.4
5.2
5.0
4.8
4.6
4.4
4.2
4.0
_______________________________________________________________________________________
90
85
80
75
70
65
60
55
50
= 12V, T
-40
-40
V
CC
-20
-20
NO-LOAD SWITCHING CURRENT
MAXIMUM DUTY CYCLE
A
= +25°C, unless otherwise specified.)
vs. TEMPERATURE
200
190
180
170
160
150
140
130
120
110
100
vs. TEMPERATURE
0
0
-40
20
20
R
T
T
R
FREQ
A
A
FREQ
(°C)
(°C)
-20
CURRENT-LIMIT DELAY TIME
40
40
= 36.5kΩ
= NONE
vs. TEMPERATURE
0
60
60
V
EN
20
T
80
80
A
= 0
(°C)
40
100
100
60
1000
80
600
580
560
540
520
500
480
460
440
420
400
800
600
400
200
0
-40
-40
100
-20
-20
SHUTDOWN V
vs. TEMPERATURE
vs. TEMPERATURE
0
0
R
FREQ
FREQUENCY
R
R
20
20
FREQ
FREQ
T
= 50kΩ
T
A
A
(°C)
(°C)
= 10kΩ
CC
= 20kΩ
40
40
Typical Operating Characteristics
CURRENT
60
60
V
EN
80
80
= 5V
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
100
100
-40
-20
OV/UV THRESHOLD VOLTAGE
5.10
5.05
5.00
4.95
4.90
130
125
120
115
110
105
100
vs. TEMPERATURE
0
-40
-40
20
T
-20
-20
A
CURRENT-SENSE THRESHOLD
(°C)
V
40
REFERENCE VOLTAGE
UV
vs. TEMPERATURE
vs. TEMPERATURE
0
0
V
OV
60
20
20
T
T
A
A
(°C)
(°C)
80
40
40
100
60
60
80
80
100
100