LD7552BPS

PWM controller, SOP-8, DIP-8, Low Startup Current

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Price:: US $0.22~0.29 / piece [Get Latest Price]

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	US $0.22~0.29

PartNumber:: LD7552BPS

Brand:: Leadtrend Technology Corporation - Leadtrend | Pack: DIP | D/C: 10+

Availability:: Supply Ability: 10000/Week Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

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Products Upload time: 2011-08-25

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Part Number:LD7552BPS
US $0.22 - 0.29
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Product Summary

The LD7552BPS are low cost, low startup current, current mode PWM controllers with green-mode power- saving operation. The integrated functions include the leading-edge blanking of the current sensing, internal slope compensation. They provide the users a superior AC/DC power application of higher efficiency, low external component counts, and lower cost solution. Furthermore, LD7552BPS feature more protections like OLP (Over Load Protection) and OVP (Over Voltage Protection) to eliminate the external protection circuits. It is designed for the switching adaptor with 30W~60W output, offered in both SOP-8 and DIP-8 package.

Parametrics

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 (SOP-8): 160℃/W; (7)Package Thermal Resistance (DIP-8): 100℃/W; (8)Power Dissipation (SOP-8, at Ambient Temperature = 85℃): 400mW; (9)Power Dissipation (DIP-8, at Ambient Temperature = 85℃): 650mW; (10)Lead temperature (Soldering, 10sec): 260℃; (11)ESD Voltage Protection, Human Body Model: 3KV; (12)ESD Voltage Protection, Machine Model: 300V; (13)Gate Output Current: 500mA.

Features

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.