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參數(shù)資料
| 型號(hào)： | CA3524E |
| 廠商： | HARRIS SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Regulating Pulse Width Modulator |
| 中文描述： | 0.1 A SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, PDIP16 |
| 文件頁數(shù)： | 10/16頁 |
| 文件大?。?/td> | 206K |
| 代理商： | CA3524E |
10
CA1524, CA2524, CA3524
FIGURE 14. FOLDBACK CURRENT-LIMITING CIRCUIT USED
TO
REDUCE
POWER
SHORTED OUTPUT CONDITIONS
DISSIPATION
UNDER
FIGURE 15. CAPACITOR-DIODE COUPLED VOLTAGE
MULTIPLIER OUTPUT STAGES
FIGURE16. SINGLE-ENDEDINDUCTORCIRCUITSWHERETHE
TWO OUTPUTS OF THE 1524 ARE CONNECTED IN
PARALLEL
FIGURE 17. TRANSFORMER-COUPLED OUTPUTS
5
4
S
A
//S
B
R1
R2
RS
SENSE
V
O
= 5V
I
MAX
=
I
R
S
V
TH
R
S
V
TH
+
V
O
R
2
R1 + R2
(
)
I
SC
=
WHERE
V
TH
= 200mV
+
-
V+
V+
V+
S
A
S
A
S
A
S
B
S
B
S
B
D1
D1
D1
V+ > V
O
V+ < V
O
| V+ | > | V
O
|
+V
O
+V
O
-V
O
NOTE: Diode D1 Is Necessary To Prevent Reverse
Emitter-Base Breakdown of Transistor Switch S
A
.
V+
V+
V+
S
A
/S
B
S
A
/S
B
S
A
/S
B
+V
O
+V
O
-V
O
| V+ | < | V
O
|
V+ < V
O
V+ > V
O
TABLE 1. INPUT vs. OUTPUT VOLTAGE, AND FEEDBACK
RESISTOR VALUES FOR I
L
= 40mA (FOR CAPACI-
TOR-DIODE OUTPUT CIRCUIT IN FIGURE 18)
V
O
(V)
-0.5
R
2
(K
)
6
V+ (Min.) (V)
8
-2.5
10
9
-3
11
10
-4
13
11
-5
15
12
-6
17
13
-7
19
14
-8
21
15
-9
23
16
-10
25
17
-11
27
18
-12
29
19
-13
31
20
-14
33
21
-15
35
22
-16
37
23
-17
39
24
-18
41
25
-19
43
26
-20
45
27
S
A-B
V+
V
O
V+
S
A
S
B
PUSH-PULL
FLYBACK
V
O
V
O
FULL BRIDGE
V+
+
-
V
O
+
-
V+
S
A
S
B
Q1
Q2
CAN BE S
OR
S
A
CAN DRIVEQ1
CAN BE S
OR
S
B
CAN DRIVEQ2
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