(China (Mainland))
Product Summary
The LD7552IN is a low cost, low startup current, current mode PWM controller with green-mode power- saving operation. The integrated functions of the LD7552IN include the leading-edge blanking of the current sensing, internal slope compensation. It provides the users a superior AC/DC power application of higher efficiency, low external component counts, and lower cost solution. Furthermore, the LD7552IN features more protections like OLP (Over Load Protection) and OVP (Over Voltage Protection) to eliminate the external protection circuits. The LD7552IN is designed for the switching adaptor with 30W~60W output, offered in both SOP-8 and DIP-8 package.
Parametrics
LD7552IN absolute maximum ratings: 1)Supply Voltage, VCC: 30V; (2)COMP, RT, CS: -0.3 ~7V; (3)Junction Temperature: 150℃; (4)Operating Ambient Temperature: -40 to 85℃; (5)Storage Temperature Range: -65 to 150℃; (6)Package Thermal Resistance:) 160℃/W; (7)Power Dissipation (SOP-8, at Ambient Temperature = 85℃): 400mW; (8)Lead temperature (Soldering, 10sec): 260℃; (9)ESD Voltage Protection, Human Body Model: 3KV; (10)ESD Voltage Protection, Machine Model: 300V; (11)Gate Output Current: 500mA.
Features
LD7552IN features: (1)High-Voltage CMOS Process with Excellent ESD protection; (2)Very Low Startup Current (<20μA); (3)Current Mode Control; (4)Non-audible-noise Green Mode Control; (5)UVLO (Under Voltage Lockout); (6)LEB (Leading-Edge Blanking) on CS Pin; (7)Programmable Switching Frequency; (8)Internal Slope Compensation; (9)OVP (Over Voltage Protection) on Vcc Pin; (10)OLP (Over Load Protection); (11)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 |
|
||||
