KA7577D Fairchild, KA7577D Datasheet - Page 3

• Manufacturer Part Number: KA7577D
• Description: SMPS Controller
• Manufacturer: Fairchild

Electrical Characteristics
(V
POWER SUPPLY VOLTAGE AND CURRENT SECTION
Power Supply Voltage
Operation Start-Up Voltage
Operation Stop Voltage
Difference Voltage Between
Operation Start and Stop
Stand-By Current
Operating Supply Current
Supply Current at Non-Operating
Supply Current at Timer Non-
Operating
Supply Current at OVP Operating
ON/OFF SECTION
ON/OFF Terminal High
Threshold Voltage
ON/OFF Terminal Low Threshold
Voltage
ON/OFF Terminal Hysteresis
Voltage
DETECTION SECTION
Detection Voltage
Input Current of Detection
Voltage
Voltage Gain of Detection Amp
FEEDBACK SECTION
Current at Min Duty Cycle
Current at Max Duty Cycle
Current Difference Between Max
and Zero Duty Cycle
FB Terminal Voltage
FB Terminal Resistance
CC
= 18V, T
Parameter
A
= 25 C, unless otherwise specified)
V
V
V
V
THH(ON/OFF)
HYS(ON/OFF)
V
THL(ON/OFF)
I
I
CC(START)
I
I
FB(MAXD)
I
G
FB(MIND)
Symbol
CC(STOP)
CC(OPR)
CC(OVP)
CC(OFF)
I
V
I
CC(CT)
V(
R
I(DET)
V(DET)
V
(DET)
I
I
V
(FB)
SB
CC
(FB)
FB)
CC
T
T
V
V
V
V
V
V
V
V
I
V
SINK
A
A
CC
CC
CC
CC
CC
CC
CC
(DET)
(DET)
= 25 C, V
= -30 to +85 C, V
= 30V
= 14V
= 25V
= 9.5V
= 25V
= 14V
= 25V
= - 0.95mA
= 2.5V
= 2.5V
Conditions
CC
-
-
-
-
-
-
-
-
-
-
-
-
= 14.5V
CC
= 14.5V
-1.35 - 0.99 - 0.7
Min.
15.2
0.95
0.95
- 2.1 -1.54
- 0.9 - 0.55 - 0.4
125
9.0
5.0
1.0
2.1
1.9
0.1
2.4
4.9
50
40
13
50
40
-
-
-
-
Typ. Max. Unit
16.2
1.31
1.35
140
190
500
9.9
6.3
2.0
2.6
2.4
0.2
2.5
1.0
5.9
80
80
15
80
55
-
17.2
10.9
-1.0
140
160
120
220
290
7.6
1.9
2.0
3.0
3.1
2.9
0.3
2.6
3.0
7.1
30
21
-
-
KA7577
mA
mA
mA
mA
mA
mA
mA
dB
W
V
V
V
V
V
V
V
V
V
A
A
A
A
A
A
3