. Various FDM0565R (DM0565R) & FAN7310 - Circuit Description IPBOARD - 540N, 540B, 740N, 740B, 740T, 940B, 94 free download

File name FDM0565R (DM0565R) & FAN7310 - Circuit Description IPBOARD - 540N, 540B, 740N, 740B, 740T, 940B, 94

13 Circuit Descriptions 13 Circuit Descriptions 13-1 Overall Block Structure 13-1-1 Power Tree Panel Operating Board SE16/56AL Core Operation SE16/56AL Interface Operation 0.6W Self-Loss 1. When the AD board is in DPMS state: 1.1 The IP has been designed so that it operates with a power consumption of less than 0.6W of. 1.2 The Scaler consumes power up to 27mA 1.3 The power to the panel is switched off 1.4 The MCU consumes power up to 23mA. --> The total current consumption to the DPMS is less then 60mA and the total power consumption is 0.6W + 5V*60mA = 0.9W so that the total power consumption is less than 1W. 2. When the AD board is operating normally: 2.1 The maximum power consumption of the panel lamps is described below (It may vary depending on the panel manufacturer) 17" : 4*(7.5mA*650mVrms)=4*4.9=19.6W 19: : 4*(7.5mA*720mVrms)=4*5.4=21.6W 2.2 The power consumption of the Panel Control board is as follows: 5V*720mA=3.6W 2.3 The power consumption of the Scaler is as follows: 3.3V*245mA + 1.8V*300mA = 1.35W 2.4 The power consumption of the MCU is as follows: 5V*44mA =0.22W 13-1 13 Circuit Descriptions 13-1-2 Main Board Parts 1. Inverter: A conversion device that converts DC 6. MCU & EEPROM: I2C is a two-way serial bus of rated voltage/current to high ones necessary two lines that supports communications across for the panel lamp. the integrated circuits as well as between MCU, Scaler and EEPROM. 2. DC/DC(Regulator): General term for DC to DC In particular, MCU and Scaler (SE56AWL) use converting devices. the DDR direct bus for mutual communications, The IP board receives 5V and outputs 1.8 or which is an effective, speedy system because it 3.3V that is supplied to the scaler (SE56AWL). allows 4 additional address/data lines com- pared to the old serial systems. 3. Power MosFET: The IP board receives 5V and outputs a lower voltage in DPMS mode and 7. Function Key: A certain keystroke generates a supplies the whole 5V for the panel operating certain electrical potential, which is transferred board in normal conditions. In that case, the into ADC input port of the MCU and then con- switching of Power MosFET is controlled by verted to a digital value by the A/D converter of Micom.