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SM7525 参数 Datasheet PDF下载

SM7525图片预览
型号: SM7525
PDF下载: 下载PDF文件 查看货源
内容描述: [SM7525 is a primary side feedback controlling power chip used in off-line small power AC/DC switching power. It realizes high precision (less than ±5%) constant current output under universal input voltage. The circuit is no loop compensation and saves opto-coupler, L431, transformer auxiliary winding and other components to reduce the cost.The circuit integrates cycle by cycle peak current limiting, FB overvoltage protection, output open/short protection and soft-start, which optimize the reliability.]
分类和应用:
文件页数/大小: 11 页 / 2894 K
品牌: SMSC [ SMSC CORPORATION ]
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深圳市钲铭科电子有限公司
GOSTON ELECTRONICS CO.,LTD
SM7525 Primary Side Feedback Controlling Switch
v1.6
Typical Application Circuit
SM7525 18V/300mA LED high-end lighting application circuit
T1
L1
8
DRAIN
7
DRAIN
6
GND
D6
E3
R4
DC+
F1
ACin
D3 D4
R6
E1 E2 U1
5
GND
D1 D2
C2
C1
R2
R5 C3
Y1
DC-
SM7525
1
2
3
4
CS
FB
NC
VCC
R3
D5
EMI Component
Absorbing
Circuit
R1
Schematic:
BOM Diagram:
Symbol
EMI Component
Parameters
Bit Number
C1
C2
C3
U1
F1
T1
L1
Y1
Parameters
1uF/16V
15pF/16V
102/1KV
SM7525
0.5A/250V
EE13
2.2mH/1W
102/250V
D1、D2、D3、D4、 RS1M
D5
D6
R1
R2
R3
R4、R6
R5
E1、E2
E3
Transform parameters;
ES1J
1.5Ω/1206
39K
1M/1206
20K/1206
120K/1206
4.7uf/400V
10uF/35V
8
1
N2
2
1
N1
NC
N3
NC
NC
1
5
N o te
4
D o tte d te rm in a l
B o tto m V ie w
1 . E E 1 3 (4 + 4 ), H o riz o n ta l P C 4 0
2 . P rim a ry In d u c ta n c e L p = 2 .0 m H
L e a k a g e
In d u c ta n c e : < 5 % o f L p
3 . L e a k a g e C u rr e n t( P rim a ry to S e c o n d )
< 2 m A /6 0 s @ 3 0 0 0 V A C
4 . L e a k a g e C u rr e n t ( P rim a ry to M a g n e tic c o re )
< 2 m A /6 0 s @ 3 0 0 0 V A C
5 . L e a k a g e C u rr e n t ( S e c o n d to M a g n e tic c o re )
< 2 m A /6 0 s @ 3 0 0 0 V A C
N 3 (N C
N 2 (2
N 1 (1
N C )
Φ
0 .2 5 * 1 * 3 6 T
1 )
Φ
0 .1 7 * 1 * 1 4 0 T
N C )
Φ
0 .1 7 * 1 O v e r a ll c o r e
Mail
:
sale@sz-ledpower.cn
Tel: 0755 -27593075
st Blvd.,South Area,Shenzhen High tech Industrial Park,Nanshan Dist.,Shenzhen.
Address: 3F,SSMEC Bldg.,15 South 1
-
Note: The latest datasheet is subject to the web(www.dianyuanic.com).
Fax: 0755 -29031113
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