(Hong Kong)
Product Summary
The LD7575BGS is a current-mode PWM controller with excellent power-saving operation. The LD7575BGS features a highvoltage current source to directly supply the startup current from bulk capacitor and further to provide a lossless startup circuit. The integrated functions such as the leading-edge blanking of the current sensing, internal slope compensation, and the small package provide the users a high efficiency, minimum external component counts, and low cost solution for AC/DC power applications. The applications of the LD7575BGS include Switching AC/DC Adapter and Battery Charger, Open Frame Switching Power Supply, LCD Monitor/TV Power.
Parametrics
LD7575BGS absolute maximum ratings: (1)Supply Voltage VCC: 30V; (2)High-Voltage Pin, HV: -0.3V to 500V; (3)COMP, RT, CS: -0.3 to 7V; (4)Junction Temperature: 150℃; (5)Operating Ambient Temperature: -40℃ to 85℃; (6)Storage Temperature Range: -65℃ to 150℃; (7)Package Thermal Resistance (SOP-8): 160℃/W; (8)Package Thermal Resistance (DIP-8): 100℃/W; (9)Power Dissipation (SOP-8, at Ambient Temperature = 85℃): 400mW; (10)Power Dissipation (DIP-8, at Ambient Temperature = 85℃): 650mW; (11)Lead temperature (Soldering, 10sec): 260℃; (12)ESD Voltage Protection, Human Body Model (except HV Pin): 3KV; (13)ESD Voltage Protection, Machine Model: 200V; (14)Gate Output Current: 500mA.
Features
LD7575BGS features: (1)High-Voltage (500V) Startup Circuit; (2)Current Mode Control; (3)Non-Audible-Noise Green Mode Control; (4)UVLO (Under Voltage Lockout); (5)LEB (Leading-Edge Blanking) on CS Pin; (6)Programmable Switching Frequency; (7)Internal Slope Compensation; (8)OVP (Over Voltage Protection) on Vcc; (9)OLP (Over Load Protection); (10)500mA Driving Capability.
Diagrams
 |
 LD7522 |
Other |
|
Data Sheet |
Negotiable |
|
||||
|
LD7535 |
Other |
|
Data Sheet |
Negotiable |
|
||||
|
LD7550 |
Other |
|
Data Sheet |
Negotiable |
|
||||
|
LD7552 |
Other |
|
Data Sheet |
Negotiable |
|
||||
|
LD7552BPS |
Other |
|
Data Sheet |
Negotiable |
|
||||
|
LD7575PS |
Other |
|
Data Sheet |
Negotiable |
|
||||
