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LD7576H Datasheet Preview

LD7576H Datasheet

Green-Mode PWM Controller

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LD7576/76H/76J/76K
12/5/2007
Green-Mode PWM Controller with High-Voltage
Start-Up Circuit and Adjustable OLP Delay Time
REV. 03
General Description
The LD7576X series bring high performance, combines with
highly integrated functions, protections and EMI-improve
solution. It’s an ideal solution for those cost-sensitive system,
reducing component count and overall system cost.
The LD7576X series features near-lossless high voltage
startup circuit, green-mode power-saving operation,
leading-edge blanking of the current sensing and internal
slope compensation. They also consist with more
protections of OLP (Over Load Protection), OVP (Over
Voltage Protection) and OTP (Over Temperature Protection)
to prevent the circuit damage under abnormal conditions.
The LD7576X series are available in DIP-8 and SOP-8
package.
Features
z High-Voltage (500V) Startup Circuit
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
z On-Chip OTP (Over Temperature Protection)
z OLP (Over Load Protection)
z Latch Mode Protection by CT pin
z 500mA Driving Capability
z Adjustable OLP delay time
Applications
z Switching AC/DC Adaptor and Battery Charger
z Open Frame Switching Power Supply
z LCD Monitor/TV Power
Typical Application
Leadtrend Technology Corporation
LD7576-DS-03 December 2007
1
www.leadtrend.com.tw
Free Datasheet http://www.datasheet4u.net/




Leadtrend

LD7576H Datasheet Preview

LD7576H Datasheet

Green-Mode PWM Controller

No Preview Available !

Pin Configuration
LD7576/76H/76J/76K
SOP-8 & DIP-8 (TOP VIEW)
8 765
TOP MARK
YYWWPP
1 234
YY:
WW:
PP:
Year code
Week code
Production code
Ordering Information
Part number Protection/Frequency
LD7576 PS
Auto-Recovery/65KHz
Package
SOP-8
PB Free
Top Mark
LD7576PS
Shipping
2500 /tape & reel
LD7576 GS
Auto-Recovery/65KHz
SOP-8 Green Package LD7576GS 2500 /tape & reel
LD7576 PN
Auto-Recovery65KHz
DIP-8
PB Free
LD7576PN 3600 /tube /Carton
LD7576J PS Auto-Recovery/100KHz
SOP-8
PB Free
LD7576JPS 2500 /tape & reel
LD7576J GS Auto-Recovery/100KHz
SOP-8 Green Package LD7576JGS 2500 /tape & reel
LD7576J PN Auto-Recovery100KHz
DIP-8
PB Free
LD7576JPN 3600 /tube /Carton
LD7576H PS
Latch/65KHz
SOP-8
PB Free LD7576HPS 2500 /tape & reel
LD7576H GS
Latch/65KHz
SOP-8 Green Package LD7576HGS 2500 /tape & reel
LD7576H PN
Latch/65KHz
DIP-8
PB Free LD7576HPN 3600 /tube /Carton
LD7576K PS
Latch/100KHz
SOP-8
PB Free LD7576KPS 2500 /tape & reel
LD7576K GS
Latch/100KHz
SOP-8 Green Package LD7576KGS 2500 /tape & reel
LD7576K PN
Latch/100KHz
DIP-8
PB Free LD7576KPN 3600 /tube /Carton
The LD7576 is ROHS compliant/ Green Package.
Note:
1. Oscillating frequency:
LD7576/76H: 65KHz (typ.),
LD7576J/76K: 100KHz (typ.).
2. LD7576H/76K features Built-in latch-mode function of OVP on Vcc pin , OLP and On Chip OTP.
3. LD7576/76J features Built-in Auto-Recovery function of OVP on Vcc pin OLP and On Chip OTP.
Leadtrend Technology Corporation
LD7576-DS-03 December 2007
2
www.leadtrend.com.tw
Free Datasheet http://www.datasheet4u.net/


Part Number LD7576H
Description Green-Mode PWM Controller
Maker Leadtrend
PDF Download

LD7576H Datasheet PDF






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