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RT8855 Datasheet(PDF) 6 Page - Richtek Technology Corporation |
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RT8855 Datasheet(HTML) 6 Page - Richtek Technology Corporation |
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6 / 18 page  RT8855 6 DS8855-01 April 2011 www.richtek.com Function Block Diagram VCC12 VCC5 BOOT1 UGATE1 PHASE1 LGATE1 BOOT2 UGATE2 PHASE2 LGATE2 PWM3 PWM4 ISP1 ISN1 ISP2 ISN2 ISP3 ISN3 ISP4 ISN4 ADJ FBRTN_NB VID5 to VID0 I_SEN1 I_SEN2 I_SEN3 I_SEN4 IMAX OC POR POR VIDOFF PWROK FB 1.8V OV COMP OC OV RT 1.25V EN OFS Power-On Reset 5V Regulator MOSFET Driver MOSFET Driver CH3_EN Detector CH4_EN Detector CH1 Current SENSE CH2 Current SENSE CH3 Current SENSE CH4 Current SENSE AVG VID Table Generator Transient Response Enhancement Soft Start and Fault Logic Transient Response Enhancement Offset Modulator Waveform Generator + - + - + - + - + - + + - + + - EA - - - - - PGOOD FBRTN ISP_NB ISN_NB I_SENNB NB Current SENSE MOSFET Driver BOOT_NB UGATE_NB PHASE_NB LGATE_NB VCC12_NB + - RAMP_NB - + EA FB_NB OC_NB IMAX_NB OV_NB - + + 1.8V COMP_NB PS RAMP_NB OC Detection OC_NB Detection |
Similar Part No. - RT8855 |
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Similar Description - RT8855 |
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