基于PS92010設(shè)計(jì)的高效PWM LED驅(qū)動(dòng)方案
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The TPS92010 is a PWM controller with advanced energy features to provide high efficiency driving for LED lighting applications.
The TPS92010 incorporates frequency fold back and low power mode operation to reduce the operation frequency at light load and no load operations.
The TPS92010 is offered in the 8-pin SOIC (D) package. Operating junction temperature range is C40℃ to 105℃.
PS92010主要特性：
LED Lighting Current Driver Controller with Energy Saving Features
Quasi-Resonant Mode Operation for Reduced EMI and Low Switching Losses (Low Voltage Switching)
Low Standby Current for Deep Dimming Efficiency Power Consumption
Low Startup Current: 25 µA Maximum
Programmable Line and Load Overvoltage Protection
Provides Open LED Protection
Internal Overtemperature Protection
Current Limit Protection
Cycle-by-Cycle Power Limit
Primary-Side Overcurrent Hiccup Restart Mode
1-A Sink TrueDrive, C0.75-A Source Gate Drive Output
Programmable Soft-Start
PS92010應(yīng)用：
Residential LED Lighting Drivers for A19 E12/E26/27, GU10, MR16, PAR30/38 Integral Lamps
Drivers for Wall Sconces, Pathway Lighting and Overhead Lighting
Drivers for Wall Washing, Architectural and Display Lighting
圖１．PS92010方框圖
圖２．PS92010開路測試電路
圖３．PS92010應(yīng)用電路
圖４．PS92010 QR檢測詳細(xì)電路
pwm相關(guān)文章:pwm原理
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