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參數(shù)資料
| 型號(hào)： | KA3884 |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SMPS CONTROLLER |
| 中文描述： | 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封裝： | DIP-8 |
| 文件頁(yè)數(shù)： | 4/5頁(yè) |
| 文件大?。?/td> | 69K |
| 代理商： | KA3884 |
KA3882/3/4/5 SMPS CONTROLLER
ELECTRICAL CHARACTERISTICS(Continued)
(V
CC
= 15V, R
T
= 10K
`
, C
T
= 3.3nF, T
A
= 0
to +85
, unless otherwise specified)
Adjust V
CC
above the start threshold bifore setting at 15V
NOTE 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
V
=
L
V
PIN1
L
V
PIN3
(V
PIN3
= 0 to 0.8V)
Characteristic
Symbol
Test Conditions
Min
Typ
Max
Unit
PWM SECTION
Maximum Duty Cycle
KA3882/3
KA3884/5
94
47
96
48
100
50
0
%
%
%
Minimum Duty Cycle
TOTAL STANDBY CURRENT
Start-Up Current
Operating Supply Current
V
CC
Zener Voltage
D
MIN
I
ST
I
CC
V
Z
0.2
11
29
0.4
17
mA
mA
V
V
PIN2
= V
PIN3
= 0V
I
CC
= 25mA
D
MAX
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