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參數(shù)資料
| 型號(hào)： | FSAB20PH60 |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Smart Power Module for Partial Switching Converter |
| 中文描述： | 1-OUTPUT DC-DC UNREG PWR SUPPLY MODULE |
| 文件頁數(shù)： | 12/16頁 |
| 文件大小： | 589K |
| 代理商： | FSAB20PH60 |
12
www.fairchildsemi.com
FSAB20PH60 Rev. A
F
Note:
1. To avoid malfunction, the wiring of each input should be as short as possible. (less than 2-3cm)
2. V
FO
output is open collector type. This signal line should be pulled up to the positive side of the 5V power supply with approximately 4.7k
resistance. Please refer to Figure
8
.
3. V
output pulse width should be determined by connecting an external capacitor(C
FOD
) between C
FOD
(pin7) and COM(pin2). (Example : if C
FOD
= 33 nF, then t
FO
=
1.8
ms
(typ.)) Please refer to the note 6 for calculation method.
4. Input signal is High-Active type. There is a 3.3k
resistor inside the IC to pull down each input signal line to GND. When employing RC coupling circuits, set up such RC couple
that input signal agree with turn-off/turn-on threshold voltage.
5. To prevent errors of the protection function, the wiring around R
SC
, R
F
and C
SC
should be as short as possible.
6. In the over current protection circuit, please select the R
F
C
SC
time constant in the range 3~4
μ
s.
7. Each capacitor should be mounted as close to the pins as possible.
8. Relays are used at almost every systems of electrical equipments of home appliances. In these cases, there should be sufficient distance between the CPU and the relays.
Figure 11. Application Circuit
COM(L)
VCC
IN(UL)
IN(VL)
IN(WL)
VFO
C(FOD)
C(SC)
OUT(UL)
OUT(VL)
OUT(WL)
P
R
S
R
N
D
N
S
N
R
C
SC
C
FOD
V
FO
IN
(S)
IN
(R)
COM
V
CC
AC
Shunt
Resister
15V
5V
M
C
U
1nF
1nF
1nF 1nF
100
100
100
4.7
k
R
F
Csc
C
FOD
Vdc
Gating S
Gating R
Fault
COM
ACL
ACL
R
TH
C
SP05
C
SPC05
V
TH
R
TH
5V
Temp
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