參數(shù)資料
型號: PS222S
廠商: Electronic Theatre Controls, Inc.
英文描述: 3-Channel Secondary Monitoring IC With Over-Current Protection And an Additional 12V OCP Channel
中文描述: 3通道超過二次監(jiān)測集成電路保護(hù)和一個額外的12V OCP頻道
文件頁數(shù): 10/13頁
文件大?。?/td> 155K
代理商: PS222S
Notes:
1. Zener diode or resistor or both of them can be used in component X.
2. The bypass capacitor C
by
suggests to be 0.1uF~ 10uF and layout nearby pin VCC.
3. The recommend sense values of R
S12(1)
, R
S12(2)
, R
S5
and R
S33
are
0.002
Ω
.
4. Over-Current Protection design example:
( )
=
=
=
K
I
RI
20
μ
(2) R
S5
=0.002
,
V
V
R
I
V
=
×
=
+
002
.
5
5
3-Channel Secondary Monitoring IC
Version
A.001
-
9
-
PS222S
(1)
A
I
ref
μ
20
=
,
V
R
RI
I
5
62
25
.
ref
20
μ
OC
.
I
×
×
×
8
5
(3) If +5V OCP trip point is 20A,
( )
=
×
=
250
20
8
002
5
OC
R
5. GND path:
(1) The GND path width is wider as far as it could.
(2) The better grounding ability has better performance at surge test.
6. PS222S uses single 12VOCP protection function:
As “Typical 3 rails SPS” application circuit, the pin7(ISx) must be connected a
resistor(Resistance>10k
Ω
) to GND or floating.
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