ka1m0280r Fairchild Semiconductor, ka1m0280r Datasheet - Page 4

• Manufacturer Part Number: ka1m0280r
• Description: Smps Controller
• Manufacturer: Fairchild Semiconductor

KA1M0280R
NOTES:
1.
2.
4
ELECTRICAL CHARACTERISTICS (Control part)
(Ta=25 C unless otherwise specified)
REFERENCE SECTION
Output voltage
Temperature Stability
OSCILLATOR SECTION
Initial accuracy
Frequency change with temperature
PWM SECTION
Maximum duty cycle
FEEDBACK SECTION
Feedback source current
Shutdown delay current
OVER CURRENT PROTECTION SECTION
Over current protection
UVLO SECTION
Start threshold voltage
Minimum operating voltage
TOTAL STANDBY CURRENT SECTION
Start current
Operating supply current
(control part only)
V
SHUTDOWN SECTION
Shutdown Feedback voltage
Thermal shutdown temperature (Tj)
Over voltage protection voltage
CC
These parameters, although guaranteed, are not 100% tested in production
These parameters, although guaranteed, are tested in EDS (wafer test) process
zener voltage
Characteristic
(1)
(1)(2)
(1)
(2)
Vref
Vref/ T
F
Dmax
I
Idelay
I
Vth(H)
Vth(L)
I
I
V
V
T
V
FB
L
ST
OPR
Symbol
OSC
F/ T
SD
Z
SD
OVP
(max)
Ta=25 C
Ta=25 C
Ta=25 C, 0V Vfb 3V
Ta=25 C, 5V Vfb V
Max. inductor current
After turn on
V
Ta=25 C
I
CC
25 C Ta +85 C
25 C Ta +85 C
CC
=20mA
=14V
Test condition
SD
Min.
4.80
1.05
140
0.7
4.0
0.1
6.9
61
74
14
30
23
9
6
Typ.
5.00
32.5
160
0.3
0.9
5.0
1.2
0.3
7.5
67
77
15
10
12
25
5
Max.
5.20
1.35
0.45
0.6
1.1
6.0
8.1
73
80
16
18
35
28
11
10
mV/ C
Unit
kHz
mA
mA
mA
%
%
SPS
V
A
V
V
V
V
V
C
A