MP113

® MP113 Printhead Driver Module FEATURES 2 Power, Analog Output Channels • High Output Voltage: Up To 135Vpp • High Output Current: 3A Continuous, 7A Peak (Per Channel) • High Output Slew Rate: Up To 45V/μs • 100W Dissipation Capability (Per Channel) • Over-temperature Protection • Temperature Sense Integrated Digital Printing Data Converter • LVDS Serial Data Input, 1- Or 2-bits Per Nozzle • Up To 1024 Nozzles • Output Waveform Frequency: Up To 50kHz APPLICATIONS • Industrial Inkjet Printers DESCRIPTION MP113 is an inkjet printhead driver intended for use with Fujifilm Dimatix SG-class printheads. It can also be used with Q-class print heads and compatible printheads of other brands. MP113 contains an analog and a digital section. The analog section consists of two independent power amplifiers, each of which capable of producing the fire pulses needed to drive up to 512 inkjet nozzles. The digital section converts 1- or 2-bit, digital printing data into bit streams for the printhead’s output latches, and exactly timed analog input signals for the power op amps. The analog section plugs into the digital section and is built on a thermally conductive but electrically insulating substrate that can be mounted to a heat sink. The digital section has card edge connectors for connection to the printhead(s) and to digital printing control. www.apexanalog.com © Apex Microtechnology Inc. All rights reserved July 2019 MP113U Rev D ® MP113 Figure 1: Equivalent Schematic Nozzle data (2-bit per nozzle) DATA (x8) CLK Nozzle Controller LVDS BUSY# Print Head Control Nozzle Latch ƵīĞƌ HEATER Print Head Digital Signals and Heater/ Thermistors Nozzle Latch Data Streamer THERMISTORS PRINT LVDS Control Unit Module System Controller RESET# System control signals and interfaces (I2C and UART) Print Data Module FAULT# SDA SCL Print KƉĞƌĂƟŽŶ Control TXD RXD System ŝĂŐŶŽƐƟĐ and Health Voltage Temp Sensor VCC Digital supply DGND Wave Form Generator Module Wave Form Module Controller High Voltage +VS Wave Form Table 1 Wave Form Waveform DAC 1 Generator ŵƉůŝĮĞƌ +VAUX Analog supply MP104 -VS AGND Print Head Current High Voltage Wave Form Table 2 Wave Form Waveform DAC 2 Generator Print Head Current ŵƉůŝĮĞƌ 2nd channel ŽƉƟŽŶĂů 2 MP113U Rev D ® MP113 ABSOLUTE MAXIMUM RATINGS Parameter Symbol Min +Vs -Vs Supply Voltage Max Units 165 V -20 V +VAUX 25 V Vcc 5.5 V Io(PK) 7.5 A Power Dissipation, internal PD 100 W Temperature, junction TJ 150 °C Temperature Range, storage Ts 105 °C Digital Supply Voltage Fire Pulse Output Current, peak, (within SOA)1 1 -40 Notes: 1. Rating applies to each amplifier channel ANALOG SPECIFICATIONS Unless otherwise noted, the analog output of the MP113 has been characterized under the following conditions: 1. Cable lengths to the print head up to 160cm 2. Temperature from 0 to 85°C 3. +Vs at 160V OUTPUT (PER AMPLIFIER CHANNEL) Parameter Test Conditions Voltage Swing IOUT=4.7A Voltage, output accuracy1 VOUT=50 to 130V, TJ=25°C 2 Min Typ Max 0 to +Vs-12 0 to +Vs-10 Current, continuous3 Units V 1 V 4.7 A Overshoot1 Full temperature range 10 % Undershoot1 Full temperature range 1 V Slew Rate CLOAD=75nF Capacitative Load 45 V/µs 75 nF Notes: 1. Refer to figure 2 for definition of this parameter. Figure 2 is also defined in Appendix 1 of FFDM’s Application Notes: Electronics Design for VersaDrop Jetting with SG-Class Printerheads, figure A1 waveform characteristics. 2. If better precision is required at a different temperature, the unit will need to be re-calibrated at that temperature. 3. The continuous current is internally limited. MP113U Rev D 3 ® MP113 Figure 2: Waveform Characteristics Overshoot Slew Rate + Slew Rate 90% Output Voltage 10% TĮƌĞƉƵůƐĞǁŝĚƚŚ Undershoot RISE/FALL TIME ERROR Rise Time Error (%) The MP113 analog output will vary from the input waveform uploaded to the module. Rise and fall times vary over amplitude and slew rate requirements. Use the graphs below to adjust input waveforms for rise and fall time error. The data in the graphs below were taken using an SG-1024 print-head operating at 50% load. Figure 3: Rise Time Error vs Amplitude 12 11 10 9 8 7 6 5 4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8 50 45 V/μs 35 V/μs 25 V/μs 60 70 80 90 100 110 120 130 Voltage (V) 4 MP113U Rev D ® MP113 Figure 4: Fall Time Error vs Amplitude -2 -3 Fall Time Error (%) -4 -5 -6 -7 45 V/μs -8 -9 -10 -11 25 V/μs -12 35 V/μs -13 -14 50 60 70 80 90 100 110 120 130 Voltage (V) MP113U Rev D 5 ® MP113 POWER SUPPLY REQUIREMENTS Parameter Test Conditions Min Typ Max Units 160 V Voltage, +Vs 70 Voltage, -Vs -20 -18 -15 V Voltage, VAUX +20 +24 +25 V Voltage, VCC1 4.75 5.0 5.5 V 5 7 mA Current, quiescent Current Consumption, operation +Vs to HVGND VAUX to AGND -Vs to AGND +Vs=160V, VAUX=24V, -Vs=-18V VAUX to AGND -VB to AGND 10 kHz, CL=150nF Vcc to DGND1 18 mA -48 mA 22 25 mA -58 -60 mA 225 230 mA Notes: 1. The 5V supply powers the MP113 and the print-head. The VCC continuous current value does NOT include any current used by the print-head. HIGH VOLTAGE POWER SUPPLY CURRENT USAGE The current draw on the high voltage power supply (+VS) is determined by the output waveform and pulse repeat frequency. Use figure 6 below to gauge the required output current when selecting a power supply. All values below were collected at 25°C, +VS = 160V. The MP113 was connected to an SG1024 print-head with all nozzles switched ON, or full load (CL=150nF). The test waveform was 130V peak at 45 V/us (see figure 5 below). 6 MP113U Rev D ® MP113 Figure 5: Waveform Used for Current Testing 140 120 Volts 100 80 60 40 20 0 0 2 4 6 8 10 12 14 Microseconds Figure 6: Supply Current vs Pulse Repeat Frequency 900 Supply Current (mA) 800 700 600 500 400 300 200 100 0 0 4 8 12 16 20 24 28 32 36 40 44 48 52 Pulse Repeat Frequency (kHz) MP113U Rev D 7 ® MP113 SYSTEM PROTECTION Parameter Temperature Accuracy Test Conditions Min Typ TC=0°C to 85°C1 Thermal System Shut-down Temperature, TSD Thermal System Warning Temperature Thermal Shutdown Temperature, Hysteresis Max Units ±2 °C 85 °C 70 °C 2 °C Notes: 1. TC is substrate temperature of the analog section (module) 8 MP113U Rev D ® MP113 THERMAL Parameter Resistance, AC junction to case Resistance, DC junction to case Test Conditions Min Typ Full temperature range f>60Hz Full temperature range f