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Leadtrend

LD7530M Datasheet Preview

LD7530M Datasheet

Green-Mode PWM Controller

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LD7530M/LD7530N
6/3/2008
Green-Mode PWM Controller with Programmable OLP Delay Time
and Integrated Protections
REV: 01
General Description
The LD7530M/LD7530N are specifically designed for the
low total system cost by integrating many functions and
protections in a tiny SOT-26 package which usually need a
lot of extra components or circuits on the general designs.
Furthermore, the programmable OLP delay time function is
to reduce the circuit complexity and thus helps the power
circuit designers to easily deal with the peak load design by
using minimum component cost and developing time.
And to satisfy different designs, 2 versions of OVP levels are
implemented as ---
z LD7530M --- 28.0V ± 2.0V.
z LD7530N --- 21.0V ± 2.0V.
Features
z High-Voltage CMOS Process with Excellent ESD
protection
z Very Low Startup Current (<30μA)
z Current Mode Control
z Non-audible-noise Green Mode Control
z UVLO (Under Voltage Lockout)
z LEB (Leading-Edge Blanking) on CS Pin
z Internal Slope Compensation
z OVP (Over Voltage Protection) on Vcc Pin
z OLP (Over Load Protection) and programmable timer
z 300mA Driving Capability
Applications
z Switching AC/DC Adaptor and Battery Charger
z Open Frame Switching Power Supply
Typical Application
Leadtrend Technology Corporation
LD7530M&LD7530N-DS-01 June 2008
1
www.leadtrend.com.tw




Leadtrend

LD7530M Datasheet Preview

LD7530M Datasheet

Green-Mode PWM Controller

No Preview Available !

LD7530M/LD7530N
Pin Configuration (LD7530M)
DIP-8 (TOP VIEW)
8 76 5
TOP MARK
YYWW##
1 23 4
SOT-26 (TOP VIEW)
OUT VCC CS
65
30
Y W1
12
4
3
GND COMP CT
Y The PB free package is identified in
embossed font, while Green
compound package in normal print
YY, Y : Year code (D: 2004, E: 2005…..)
WW, W: Week code
1 : LD75..(M) (Product family code)
## : Production code
Pin Configuration (LD7530N)
DIP-8 (TOP VIEW)
8 76 5
TOP MARK
YYWW##
1 23 4
SOT-26 (TOP VIEW)
OUT VCC CS
65
Y W2 30
12
4
3
GND COMP CT
Y The PB free package is identified in
embossed font, while Green
compound package in normal print
YY, Y : Year code (D: 2004, E: 2005…..)
WW, W: Week code
2 : LD75..(N) (Product family code)
## : Production code
Leadtrend Technology Corporation
LD7530M&LD7530N-DS-01 June 2008
2
www.leadtrend.com.tw


Part Number LD7530M
Description Green-Mode PWM Controller
Maker Leadtrend
PDF Download

LD7530M Datasheet PDF






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