UC3848G-D08-T UTC [Unisonic Technologies], UC3848G-D08-T Datasheet
UC3848G-D08-T
Related parts for UC3848G-D08-T
UC3848G-D08-T Summary of contents
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... Cycle-by-Cycle Current Limiting * Under Voltage Lock Out * Short Circuit Protection ORDERING INFORMATION Ordering Number Lead Free UC3848L-D08-T UC3848L-S08-R www.unisonic.com.tw Copyright © 2011 Unisonic Technologies Co., Ltd Package Halogen Free UC3848G-D08-T DIP-8 UC3848G-S08-R SOP-8 LINEAR INTEGRATED CIRCUIT Packing Tube Tape Reel QW-R103-033 ...
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UC3848 PIN CONFIGURATION PIN DESCRIPTION PIN NO. SYMBOL 1 SS Soft-start 2 FB Feedback 3 CS Controller current sense input Connected power limiting for universal AC input Range 5 GND Ground 6 OUT Output to the ...
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UC3848 BLOCK DIAGRAM OVP Reference voltage Logic Control 1 SS Delay Time OTP OLP 2 FB Slope Compensation 5 GND UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw LINEAR INTEGRATED CIRCUIT Frequency Hopping UVLO Soft Start Latch S Q Burst ...
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UC3848 ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Input Voltage to V Pin IN Input Voltage to FB Pin Input Voltage to CS Pin Junction Temperature Operating Temperature Storage Temperature Note: Absolute maximum ratings are those values beyond which the device ...
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UC3848 FUNCTIONAL DESCRIPTION The internal reference voltages and bias circuit work at V (1) Soft-Start When every IC power on, driver output duty cycle will be decided by voltage V on current sense resistor at beginning. After V depend on ...
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UC3848 FUNCTIONAL DESCRIPTION(Cont.) (2) Switch Frequency Set The maximum switch frequency is set to 68kHz. Switch frequency is modulated by output power P operating load or light load condition, most of the power dissipation in a switching mode ...
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UC3848 FUNCTIONAL DESCRIPTION(Cont.) (4) Frequency Hopping For EMI Improvement The Frequency hopping is implemented in the IC; there are two oscillators built-in the IC. The first oscillator is to set the normal switching frequency; the switching frequency is modulated with ...
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UC3848 FUNCTIONAL DESCRIPTION(Cont.) (7)Protection section (Cont.) OLP After soft-start phase end, IC will shutdown driver if over load state occurs for continual T not inactive during soft-start phase. OLP case as followed FIG. 6. The test circuit as followed FIG.8. ...
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UC3848 TYPICAL APPLICATION CIRCUIT F1 L1 LINE XC1 ZNR1 NEUT TR1 R12 IC1 OUT GND 5 C6 R13 Table1 Components ...
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UC3848 TYPICAL CHARACTERISTICS Feedback Voltage During Loadjump From 10 100% Load (V 12V 10V -2V 0 2000 Time (400μs/div) Startup With Full Load Condition at V =90V, V and ...
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UC3848 TYPICAL CHARACTERISTICS(Cont.) Frequency vs. Output Power =90V Output Power, P OUT UTC assumes no responsibility for equipment failures that result from using products at values ...