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PDF SM7525 Data sheet ( Hoja de datos )

Número de pieza SM7525
Descripción Primary Side Feedback Controlling Switch
Fabricantes Sunmoon 
Logotipo Sunmoon Logotipo



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No Preview Available ! SM7525 Hoja de datos, Descripción, Manual

GOSTON ELECTRONICS CO.,LTD
SM7525 Primary Side Feedback Controlling Switch v1.6
SM7525
Features
z Topological structure support:
Fly-back and low-cost BUCK-
Boost
z Integrated 730V hybrid techno-
logy
z Universal input voltage:
85Vac~265Vac
z Constant current precision less
than ±5%
z Universal voltage compatible
with 1~5W
z SunMoon patented no auxiliary
winding of primary side feed-
back control technology without
coupler, 431 and other compo-
nents.
z No loop compensation
z Built-in LEB circuit
z Cycle by cycle peak current
limiting
z Output open/short circuit
z Built-in soft-start
z Built-in overvoltage protection
and short circuit protection
z PackageSOP8
Applications
‹ LED lighting driver
General Description
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.
Pin Figure
SOP8
Output Power Meter
Input Voltage
Output Power
85Vac265Vac
1~5W
180Vac265Vac
5~7W
Typical Application
AC
SM7525
DC
Absorbing
Circuit
Mail: sale@sz-ledpower.cn
Tel: 0755 -27593075
Address: 3F,SSMEC Bldg.,15 South 1st Blvd.,South Area,Shenzhen H-igh tech Industrial Park,Nanshan Dist.,Shenzhen.
Note: The latest datasheet is subject to the web(www.dianyuanic.com).
-1-
Fax: 0755 -29031113

1 page




SM7525 pdf
GOSTON ELECTRONICS CO.,LTD
SM7525 Primary Side Feedback Controlling Switch v1.6
‹ Current Detection and LEB
SM7525 controls the power switch by detecting the resistor voltage of CS, so that the transformer
primary current control is achieved and cycle-by cycle peak current limiting is provided. Switch current inputs
CS pin by accessing to the external detection resistor.
In order to eliminate the interference caused by open of high voltage power MOSFET, it is built-in
leading edge blanking circuit. Therefore, there is no need for external RC filter circuit and reducing cost is
achieved.
‹ Protection Control
SM7525 improves the various protection functions and optimizes the power reliability including
cycle-by-cycle peak current limiting, short circuit protection, FB overvoltage protection and soft-start.
Mail: sale@sz-ledpower.cn
Tel: 0755 -27593075
Address: 3F,SSMEC Bldg.,15 South 1st Blvd.,South Area,Shenzhen H-igh tech Industrial Park,Nanshan Dist.,Shenzhen.
Note: The latest datasheet is subject to the web(www.dianyuanic.com).
-5-
Fax: 0755 -29031113

5 Page





SM7525 arduino
GOSTON ELECTRONICS CO.,LTD
Package:
SOP8
SM7525 Primary Side Feedback Controlling Switch v1.6
Mail: sale@sz-ledpower.cn
Tel: 0755 -27593075
Address: 3F,SSMEC Bldg.,15 South 1st Blvd.,South Area,Shenzhen H-igh tech Industrial Park,Nanshan Dist.,Shenzhen.
Note: The latest datasheet is subject to the web(www.dianyuanic.com).
- 11 -
Fax: 0755 -29031113

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