KA2008-AF10A Printheads For Facsimiles 3.3V to 5V Printing Voltage (A Series) KA2008-AF10A ROHM’s A Series printheads for A4 paper size Facsimile applications utilize original integrated mounting technology, allowing for a wide range of logic voltages (3.13V to 5.25V). zApplications Facsimiles Electric whiteboard Measuring terminal printers zFeatures 1) Providing easy design solution of power supply with the same bit number for each strobe at A4 size FAX application by employing the first in the industry 216 bits Driver IC. 2) Achieved Logic voltage of 3.13 to 5.25V and provides the wide range of power supply voltage. Wide selection of electrical components is able to choose. 3) Employment of ROHM’s own technology clip connector makes it possible to supply the goods without heat sink and substrate it self. This allows wide range of designing since substrate could be directly attached to the mechanism. zDimensions (Unit : mm) 230.5±0.3 (HEATSINK WIDTH) MAX 8.5 5.85±0.3 4.85±0.2 Dot #1 Dot #1728 . φ14 .0 LABEL RESIN COATING FOR PROTECTION OF PIN. No.9 No.1 CONNECTOR B RESIN COATING FOR PROTECTION OF IC. No.1 No.9 CONNECTOR A MAX 16±0.2 15.1±1 230 (SUBSTRATE WIDTH) 216 (EFFECTIVE PRINT WIDTH) 2.6±0.1 4.6±0.2 CENTER OF HEAT ELEMENTS 11.5±0.1 5±0.2 11.5±0.1 220.5±0.2 4-M3 Rev.A 1/4 KA2008-AF10A Printheads zEquivalent circuit DOT #1728 8,9 VH DOT #1 1,2 GND 8,9 1728 /STB4 /STB3 1297 1296 865 864 433 432 1 5 6 6 5 LATCH RESISTER VH GND /STB1 /STB2 4 /LAT 3 7 DI 1,2 CLK SHIFT RESISTER Vdd 4 7 3 TM TM ＴHＥＲＭＩＳＴＯＲ 30ｋΩ Ｂ：3950K CONNECTOR B CONNECTOR A VH: 24 SUPPLY /STB: STROBE (HIGH ACTIVE) /LAT:LATCH CLK: CLOCK DI: DATA IN GND: GROUND TM: THERMISTOR zPin assignments CONNECTOR B CONNECTOR A No. Circuit No. Circuit 1 GND 1 VH 2 GND 2 VH 3 TM 3 CLK 4 VDD 4 LAT 5 STB4 5 STB2 6 STB3 6 STB1 7 DI 7 TM 8 VH 8 GND VH 9 GND 9 Rev.A 2/4 KA2008-AF10A Printheads zTiming chart tw CLK CLK (CLOCK) t hold DI t setup DI DI(DATA IN) "High":BLACK "LOW" :WHITE Min. 5μs (VIH=5V)* t setup LAT Min. 10μs (VIH=3.3V)* t hold LAT /LAT (LATCH) "High": HOLD "LOW" : THROUGH tw LAT t setup STB /STB (STROBE) tdo tdo DRIVER OUT ∗ If delay time for Driver Out can not be secured enough, there is a possibility that VH would fluctuate greatly. Please design the circuit so that VH does not exceed peak voltage (Vp). zCharacteristics Symbol Typical Unit Effective printing width − 216.0 mm Dot pitch − 0.125 mm Total dot number − 1728 dots Ω Parameter Average resistance value Rave 3000 Applied voltage VH 24.0 V Applied power PO 0.17 W/dot Print cycle SLT 10 ms Pulse width TON 1.95 ms Maximum number of dots energized simultaneously − 432 dots Maximum clock frequency − 4 MHz Maximum roller diameter − φ14.0 mm Running life / pulse life − 30/3×107 km/pulses Operating temperature − 5~45 °C Rev.A 3/4 KA2008-AF10A Printheads zElectrical characteristic curves 1.4 0.5 0.45 1 SLT : 10ms/line 0.9 1.2 0.8 0.35 0.3 0.25 0.2 0.15 1 ENERGY (mJ / dot) OPTICAL DENSITY ENERGY (mJ / dot) 0.4 0.8 0.6 0.4 0.6 0.5 0.4 0.3 0.2 0.1 0.2 0.05 0 4 0.7 6 8 10 12 14 16 18 20 22 SCANNING LINE TIME (ms / line) 0 0 0.1 0.1 0.2 0.3 0.4 0.5 ENERGY (mJ / dot) Fig.3 Adaptive speed chart Fig.4 Representative density curve 0 0 5 10 15 20 SCANNING LINE TIME (ms / line) Fig.5 Maximum energy curve 180 160 RESISTANCE : (kΩ) 140 120 100 80 60 40 20 0 −20 −10 0 10 20 30 40 50 60 70 TEMPERATURE : (°C) Fig.6 Thermistor curve Rev.A 4/4 Appendix Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document are no antiradiation design. The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of which would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. It is our top priority to supply products with the utmost quality and reliability. However, there is always a chance of failure due to unexpected factors. Therefore, please take into account the derating characteristics and allow for sufficient safety features, such as extra margin, anti-flammability, and fail-safe measures when designing in order to prevent possible accidents that may result in bodily harm or fire caused by component failure. ROHM cannot be held responsible for any damages arising from the use of the products under conditions out of the range of the specifications or due to non-compliance with the NOTES specified in this catalog. Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact your nearest sales office. ROHM Customer Support System www.rohm.com Copyright © 2007 ROHM CO.,LTD. THE AMERICAS / EUPOPE / ASIA / JAPAN Contact us : webmaster@ rohm.co. jp 21, Saiin Mizosaki-cho, Ukyo-ku, Kyoto 615-8585, Japan TEL : +81-75-311-2121 FAX : +81-75-315-0172 Appendix1-Rev2.0