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Datasheet SM7525 PDF ( 特性, スペック, ピン接続図 )

部品番号 SM7525
部品説明 Primary Side Feedback Controlling Switch
メーカ Sunmoon
ロゴ Sunmoon ロゴ 
プレビュー
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SM7525 Datasheet, SM7525 PDF,ピン配置, 機能
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, ピン配列
GOSTON ELECTRONICS CO.,LTD
SM7525 Primary Side Feedback Controlling Switch v1.6
Limiting Values
Limiting Parameters (TA= 25)
Symbol
Description
VDD
Operating Voltage
VFB FB Input Voltage
VCS CS Input Voltage
TA Operating Temperature
Tstg Storage Temperature
VESD
HBM
Rθja Thermal Resistance
Vds Drain Source Breakdown Voltage
Range
-0.3~6
~
-0.3~7.0
-20~125
-40~150
4
65
-0.3~730
Electrical Operating Parameters
((No special instructionnormal condition TA=25VDD=6V)
Symbol
ICC
Vcc
Vcs
TLEB
VFBMIN
VFBMAX
TDEM_MIN
DMAX
RDSON
BVD_SS
Vcc_uvlo
Description
Static Current
Power Supply Voltage
Current Detection Threshold
Leading Edge Blanking Time
FB Minimum Threshold
Value
FB Overvoltage Threshold
Minimum Degaussing Time
Maximum Duty Cycle
On-Resistance
Drain Source Breakdown
Voltage
Vcc under-voltage protection
threshold
Min
Range
Type
-250
6
620
450
300
4
5
42
15
730
4
Max
Unit
V
V
V
KV
/W
V
Unit
uA
V
mV
ns
mV
V
us
%
Ohm
V
V
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).
-3-
Fax: 0755 -29031113


3Pages


SM7525 電子部品, 半導体
GOSTON ELECTRONICS CO.,LTD
PCB Layout Precautions
SM7525 Primary Side Feedback Controlling Switch v1.6
Thermal Copper Area
‹ Pin 5 and 6 of IC need copper to dissipate, which means shopping copper in the bottom layer and the
surface layer is necessary to reduce temperature and improve performance.
‹ The distance between DRAIN pin wiring and transformer should be as short as possible. It is appropriate to
keep small loop area and no big area copper.
‹ FB pin wiring should be away from high-voltage loop with more than 1mm spacing to avoid interference.
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).
-6-
Fax: 0755 -29031113

6 Page





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