ka3842ac Fairchild Semiconductor, ka3842ac Datasheet - Page 4

• Manufacturer Part Number: ka3842ac
• Description: Smps Controller
• Manufacturer: Fairchild Semiconductor

KA3842AC/KA3842AE Rev. 1.0.1
Electrical Characteristics
(V
* Adjust V
Notes:
1. These parameters, although guaranteed, are not 100% tested in production.
2. Parameter measured at trip point of latch with V2 = 0V.
3. Gain defined as: G
4. Junction-to-air thermal resistance test environments
OUTPUT SECTION
V
V
t
t
V
UNDER VOLTAGE LOCKOUT SECTION
V
V
PWM SECTION
D
D
TOTAL STANDBY CURRENT
I
I
V
R
F
ST
CC
Symbol
CC
OL
OH
OLIM
TH
TL
Z
MAX
MIN
PCB information:
= 15V, R
Board thickness; 1.6mm, Board dimension: 76.2 X 114.3mm
Board structure; Using the single layer PCB.
CC
above the start threshold before setting at 15V
Output Low Level
Output High Level
Rise Time
Fall Time
Output Voltage Swing Limit
Start Threshold
Min. Operating Voltage
(After turn on)
Maximum Duty Cycle
Minimum Duty Cycle
Start-Up Current
Operating Supply Current
V
T
CC
= 10k¾, C
Zener Voltage
(1)
V
(1)
= ΔV
Parameter
T
= 3.3nF, T
PIN1
ΔV
PIN3
(Continued)
A
(V
= 0°C to +70°C, unless otherwise specified)
PIN3
= 0 to 0.8V)
I
I
I
I
T
T
V
V
I
SINK
SINK
SOURCE
SOURCE
CC
J
J
CC
PIN2
= 25°C, C1 = 1nF
= 25°C, C1 = 1nF
= 25mA
= 27V, C1 = 1nF
= 20mA
= 200mA
= V
4
= 20mA
= 200mA
PIN3
Conditions
= 0V
2
, Ref.: EIA/JSED51-3 and EIA/JSED51-7
Min.
13
12
15
94
–
–
–
–
–
9
–
–
–
–
Typ.
13.5
13.5
0.1
1.5
0.2
40
40
22
16
10
96
11
29
–
Max.
100
100
100
0.4
2.2
0.4
www.fairchildsemi.com
17
11
17
–
–
–
0
–
Unit
mA
mA
ns
ns
%
%
V
V
V
V
V
V
V
V