MAX8541 MAXIM [Maxim Integrated Products], MAX8541 Datasheet - Page 7

• Manufacturer Part Number: MAX8541
• Description: Synchronizable, High-Frequency Current- and Voltage-Mode PWM Controllers for Isolated Supplies
• Manufacturer: MAXIM [Maxim Integrated Products]

(V
Voltage-Mode PWM Controllers for Isolated Supplies
CC
1000
800
600
400
200
0
= 12V, T
7.6
V
V
9.7
A
SKTON
SKTOFF
5.10
5.08
5.06
5.04
5.02
5.00
4.98
4.96
4.94
4.92
4.90
V
vs. INPUT VOLTAGE
DRV
= +25°C, unless otherwise specified.)
R
FREQ
INPUT VOLTAGE (V)
LATCH-OFF OVERCURRENT WAVEFORMS
FREQUENCY
Synchronizable, High-Frequency Current- and
0
11.8
R
R
= 50kΩ
_______________________________________________________________________________________
FREQ
FREQ
2
= 10kΩ
= 20kΩ
13.8
REFERENCE VOLTAGE
vs. LOAD CURRENT
LOAD CURRENT (mA)
4
15.9
10ms/div
6
18.0
C
8
SKTON
= 0.01µF
MAX8540 toc15
10
1000
Typical Operating Characteristics (continued)
800
600
400
200
0
12
0
1V/div
5V
0.2
SKTON/SKTOFF TIME
vs. CAPACITANCE
CAPACITANCE (µF)
0.4
0.6
0.8
V
V
SKTON
SKTOFF
5.06
5.04
5.02
5.00
4.98
4.96
4.94
V
DRV
HICCUP-MODE OVERCURRENT WAVEFORMS
1.0
7.6
REFERENCE VOLTAGE vs. V
V
9.7
V
DRV
CS
PROGRAMABLE LATCH-OFF DELAY
11.8
V
4ms/div
C
CC
SKTON
(V)
13.8
, C
SKTFOF
4ms/div
15.9
MAX8540 toc16
= 0.01µF
CC
C
SKTON
18.0
1V/div
1V/div
= 0.01µF
MAX8540 toc12
2V/div
7