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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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UBA3077HN датащи(PDF) 4 Page - NXP Semiconductors |
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UBA3077HN датащи(HTML) 4 Page - NXP Semiconductors |
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4 / 25 page  UBA3077HN All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved. Objective data sheet Rev. 1 — 8 February 2011 4 of 25 NXP Semiconductors UBA3077HN Three-channel switched-mode LED driver 6. Block diagram Only channel 1 is shown. Fig 1. UBA3077HN block diagram 001aan130 BANDGAP REFERENCE SHORT/OPEN LED DIGITAL BOOST CONTROLLER FAULT MANAGEMENT ADC UVLO POR ADC TEMPERATURE SENSOR PWM GENERATOR PWM CTRL l2C-BUS INTERFACE CLOCK AND MODE MANAGEMENT LEVEL SHIFTER CLK (500 kHz) 32 MHz CLK (500 kHz) PWM channel 1 PWM channel 1 13 20 3 7 12 11 9 16 15 14 4 IREF 22 21 SDA VSYNC +1 V PWM1 PWM2 PWM3 VDD(IO) SCL INT HICCUP VDD VDD VDD OCP VDD VDD Ipeak_th VIN 6 36 18 19 PWM channel 1 CH1 CH2 CH3 PWM channel 2 PWM channel 3 LX1 PGND11 VOUT1 FB1 PGND12 UBA3077HN |
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