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Dimming System for Monitors

Overview

Description

The requirements for color gamut, brightness and color switching of displays are higher and higher, especially the displays for competitive games. Renesas can provide a total IC solution for this application, including quasi-resonant (QR) flyback controller power, DC/DC buck, LDO, MCU, and backlighting solution.

System Benefits​:

  • High-performance AC/DC, high-performance DC/DC buck and low dropout voltage regulator (LDO) devices provide efficient power
  • iW7039 is a 32-channel, internal current sink, fault interrupt output, high precision LED driver with a high dynamic range that uses the BoardLED™ digital adaptative switch-mode technology to enable the best system efficiency and thermal performance
  • Low power and high-performance entry-level 48MHz Arm® Cortex®-M23 MCU

Comparison

Applications

  • TV backlighting
  • Monitor backlighting

Winning Combinations Interactive Diagram

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4:3 ratio Sheet.1 Sheet.2 Sheet.3 Sheet.4 CN339 CN339 CN339 Flyback Flyback Flyback Buck 2 Buck Buck Buck 1 Buck Buck Buck 3 Buck Buck Main Board Main Board Main Board Lighting Bar Lighting Bar Lighting Bar Diode - IR Infrared Sheet.21 Sheet.22 Sheet.23 Sheet.24 Sheet.25 Darlington.651 Sheet.27 Darlington.254 Diode - IR Infrared .29 Sheet.30 Sheet.31 Sheet.32 Sheet.33 Sheet.34 Darlington.651 Sheet.36 Darlington.254 Diode - IR Infrared .38 Sheet.39 Sheet.40 Sheet.41 Sheet.42 Sheet.43 Darlington.651 Sheet.45 Darlington.254 Diode - IR Infrared .47 Sheet.48 Sheet.49 Sheet.50 Sheet.51 Sheet.52 Darlington.651 Sheet.54 Darlington.254 AC Power Source Sheet.57 Alternating Current USB Plug Sheet.82 Sheet.83 Sheet.84 Sheet.85 Sheet.86 Sheet.96 Sheet.97 Sheet.98 Sheet.99 Sheet.100 Sheet.101 Sheet.102 Sheet.103 Sheet.104 Sheet.105 Sheet.106 Sheet.107 Sheet.108 Sheet.109 Sheet.110 Sheet.111 Sheet.112 Sheet.113 Sheet.114 Sheet.115 Sheet.116 Sheet.117 Sheet.118 Sheet.119 Sheet.120 Sheet.121 Sheet.122 Sheet.123 Sheet.128 Sheet.129 Sheet.130 Sheet.131 Sheet.132 Sheet.133 Sheet.134 Sheet.135 Sheet.136 Sheet.137 Sheet.138 AC Line AC Line AC Line Connector 1.170 Connector 1.145 19V/4Amax 19V/4Amax 19V/4Amax Connector 1.170.147 5V/0.5Amax 5V/0.5Amax 5V/0.5Amax 12V/5Amax 12V/5Amax 12V/5Amax 12V/5Amax 12V/5Amax 12V/5Amax Output 1 Output 1 Output 1 Output 3 Output 3 Output 3 Channel 65-96 Channel 65-96 Channel 65-96 FB3 FB3 FB3 Connector 1.170.156 Connector 1.170.157 Channel 1-32 Channel 1-32 Channel 1-32 FB1 FB1 FB1 SPI(2) SPI(2) SPI(2) Connector 1.170.167 Sheet.168 5V 5V 5V Connector 1.170.173 Miso3 Miso3 Miso3 Faultb 3 Faultb 3 Faultb 3 iW7039/VSYNC iW7039_VSYNC iW7039_VSYNC .177 SPI(2) Signals SPI(2) Signals SPI(2) Signals Faultb 1 Faultb 1 Faultb 1 5V 5V 5V ADC/DIM ADC_DIM ADC_DIM RESET RESET RESET SWDI SWDI SWDI SWCLK SWCLK SWCLK DEBUG/RX DEBUG_RX DEBUG_RX DEBUG/TX DEBUG_TX DEBUG_TX Diode - Photodiode Sheet.188 Sheet.189 Sheet.191 Sheet.192 Darlington.651 Sheet.194 Darlington.254 FACTORY/MODE FACTORY_MODE FACTORY_MODE Sheet.127 Sheet.208 Sheet.209 Sheet.210 Sheet.211 Sheet.212 Sheet.213 Ground (earth).214 Sheet.215 Sheet.216 Sheet.217 Sheet.218 Sheet.260 Sheet.261 Sheet.262 Sheet.263 Sheet.264 Sheet.265 Sheet.266 Ground (earth) Sheet.268 Sheet.269 Sheet.270 Sheet.271 Sheet.273 Sheet.274 Sheet.275 Sheet.276 Sheet.277 Sheet.278 Sheet.279 Ground (earth).280 Sheet.281 Sheet.282 Sheet.283 Sheet.284 Ground (earth).293 Sheet.294 Sheet.295 Sheet.296 Sheet.297 FACTORY/Test FACTORY_Test FACTORY_Test Local DIM/EN Local DIM_EN Local DIM_EN Faultb Reports LED Faultb Reports LED Faultb Reports LED .308 SPI(1) Signals SPI(1) Signals SPI(1) Signals SYS/VSYNC SYS_VSYNC SYS_VSYNC BL/ON BL_ON BL_ON EXT/DIM EXT_DIM EXT_DIM Sheet.313 MCU MCU MCU SPI SPI SPI GPIO GPIO GPIO SPI SPI SPI GPIO GPIO GPIO Sheet.314 Backlighting 2 Backlighting Backlighting Miso1 Miso1 Miso1 Sheet.315 Backlighting 1 Backlighting Backlighting Miso3 Miso3 Miso3
Exiting Interactive Block Diagram