ka2s0765 Fairchild Semiconductor, ka2s0765 Datasheet - Page 4

• Manufacturer Part Number: ka2s0765
• Description: Fairchild Power Switch Fps
• Manufacturer: Fairchild Semiconductor

KA2S0765
Electrical Charcteristics (CONTROL part)
(Ta = 25 C unless otherwise specified)
Note:
1. These parameters, although guaranteed, are not 100% tested in production
2. These parameters, although guaranteed, are tested in EDS(water test) process
3. The amplitude of the sync. pulse is recommended to be between 2V and 3V for stable sync. function.
4
UVLO SECTION
OSCILLATOR SECTION
FEEDBACK SECTION
SYNC. & SOFT START SECTION
REFERENCE SECTION
PROTECTION SECTION
TOTAL DEVICE SECTION
Start threshold voltage
Stop threshold voltage
Initial accuracy
Frequency change with temperature
Maximum duty cycle
Feedback source current
Shutdown Feedback voltage
Shutdown delay current
Soft start voltage
Soft start current
Sync threshold voltage
Output voltage
Temperature Stability
CURRENT LIMIT (SELF-PROTECTION) SECTION
Peak Current Limit
Thermal shutdown temperature (Tj)
Over voltage protection voltage
Start Up current
Operating supply current
(control part only)
V
CC
zener voltage
Characteristic
(1)
(1)(2)
(3)
(1)
(2)
Symbol
V
Vref/ T
I
V
V
I
F
V
START
D
I
START
OVER
V
delay
V
T
STOP
SYTH
Vref
I
F/ T
I
OSC
I
OVP
V
max
OP
FB
SS
SD
SD
SS
Z
After turn on
Ta=25 C
Ta=25 C, Vfb=GND
Ta=25 C, 5V Vfb V
V
Sync & S/S=GND
Vfb=5V
Ta=25 C
KA2S0765
V
Ta=25 C
I
CC
25 C
25 C
FB
CC
=20mA
=2V
=14V
Test condition
Ta
Ta
-
-
-
-
-
+85 C
+85 C
SD
Min.
4.80
4.40
140
0.7
6.9
1.4
4.7
0.8
6.0
0.1
14
18
92
23
30
9
6
-
-
Typ.
5.00
5.00
32.5
160
0.9
7.5
1.8
5.0
1.0
6.4
0.3
0.3
10
15
20
95
25
12
5
Max.
5.20
5.60
0.55
1.2
1.1
8.1
2.2
5.3
6.8
0.6
16
11
22
98
28
18
35
10
-
mV/ C
Unit
kHz
mA
mA
mA
mA
%
%
V
V
V
V
V
V
A
V
V
C
A