Ordering number:EN3173B Monolithic Digital IC LB1740 8-Channel, Current-Source Output, Darlington Transistor Array Overview Package Dimensions The LB1740 is an 8-channel current source output Darlington transistor array made up of PNP transistors and NPN transisitors.High output drive capability for very low input current is achieved. unit:mm 3007A-DIP18 [LB1740] Features • Eight independent Darlington driver circuits. • High breakdown voltage (50V), high current source output (500mA). • With output clamp diodes. SANYO:DIP18 Specifications Maximum Ratings at Ta = 25˚C Parameter Maximum supply voltage Output supply voltage Input supply voltage Muximum output current Clamp diode forward current Clamp diode reverse voltage Allowable power dissipation Symbol Conditions Ratings VCCmax VOUT VIN IOUT V –0.3 to VCC –0.3 to +30 V Per channel IF VR Pd max Unit –0.3 to +50 V –500 mA –500 mA –0.3 to +50 V 1.13 W Operating temperature Topr –20 to +75 ˚C Storage temperatrure Tstg –40 to +150 ˚C Allowable Operating Conditions at Ta = 25˚C Parameter Symbol Conditions Supply voltage V CC Inout ON-level voltage VION IOUT =–350mA Inout OFF-level voltage VIOFF IOUT ≥ –50µA Ratings Unit 4 to 50 V 1.8 to 30 V –0.3 to +0.3 V Electrical Characteristics at Ta = 25˚C, VCC =50V Parameter Supply current Symbol ICCH Output voltage Input current Clamp diode forward voltage Conditions ICCL All inputs:VIN=5V All inputs:Open VOH1 VOH2 VIN=1.8V, IOUT=–100mA VIN=1.8V, IOUT=–350mA VIN1 VIN2 VIN=5V VIN=25V Clamp diode reverse voltage VF VR Reted propagation delay time tph1 IF=–350mA IR=100µA Ratings min typ 5.6 VCC–2.0 VCC–2.4 –2.4 Unit max 10 mA 100 µA VCC–1.45 VCC–1.6 V V 0.4 0.75 mA 2.6 4.7 mA –1.2 V 50 V 20 ns SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquaters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN 43098HA (KT)/N2195YK/N149TA, TS No.3173-1/2 LB1740 Ta=25˚C, VCC=12V Parameter Switching delay time Symbol td Conditions Reference circuit, See Figure1 Ratings min typ max 7.3 Unit µA Figure 1 Pin Assignment Equivalent Circuit (1 channel) No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. Anyone purchasing any products described or contained herein for an above-mentioned use shall: Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: Not impose any responsibilty for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of April, 1998. Specifications and information herein are subject to change without notice. PS No.3173-2/2