ka3511bs Fairchild Semiconductor, ka3511bs Datasheet - Page 2

• Manufacturer Part Number: ka3511bs
• Description: Intelligent Voltage Mode Pwm Ic
• Manufacturer: Fairchild Semiconductor

KA3511BS
Internal Block Diagram
Absolute Maximum Ratings
Temperature Characteristics
2
Parameter
Supply voltage
Collector output voltage
Collector output current
Power dissipation(KA3511BS)
Operating temperature
Storage temperature
Temperature coefficient of Vref (-25 C Ta 85 C)
V5
V12
E/A(+
)
E/A(-
DEAD TIME
)
CONTROL
COMP
VREF
DET
V
CC
R
C
T
T
21
14
7
8
2
3
4
1
9
Parameter
5V
OSCILLATOR
Start Up
VREF
1.25V
INTERNAL
BIAS
1.25V
COMP1
0.1V
COMP2
CONTROLLER
CONTROL
DEAD TIME
PWM
V
Symbol
I
Ichag
C1
C1
T
T
V
T
P
OPR
PG
STG
VREF
CC
, V
, I
D
C2
10
C2
Symbol
5V
Vref/ T
2.2u
F
GENERATOR
1.8V
Q
COMP3
PG
R
S
0.6V 1.8V
CK
D
Q
Q
2.2uF
T
Min.
0.6V
UVP
-
65 to 150
25 to 85
CONTROLLER
VREF
Value
19
200
1.5
40
40
DELAY
COMP
OVP
COMP
UVP
20
1.25
V
Typ.
0.01
GND
1.25
V
REMOTE ON/OFF
Max.
1.4V
-
Unit
mA
W
V
V
C
C
24
22
23
11
18
17
16
15
%/ C
5
6
Unit
T
REM
(PS-ON)
PG
V12
V3.3
C1
C2
PT
E
V5
REM