unisonic technologies co., ltd UC34363 preliminary linear integrated circuit www.unisonic.com.tw 1 of 6 copyright ? 2012 unisonic technologies co., ltd qw-r103-059.a constant voltage and constant current controller for battery chargers ? description the utc UC34363 is a switch controller for constant voltage, constant current (cv/cc) applicat ion. the device could be used for battery charge. utc UC34363 is used of sop-8 packages. additionally the utc UC34363 intergrated a internal compensation capacitor, so that the application is simplicial. ? features * cv/cc linear charge * 3a maximum charge current * pwm control mode * available charge current * over voltage protect ,over current protect * enable control function * very low power dissipation in standby mode ? ordering information ordering number lead free halogen free package packing UC34363l-s08-r UC34363g-s08-r sop-8 tape reel UC34363l-s08-t UC34363g-s08-t sop-8 tube note: xx: output voltage, refer to marki ng information. UC34363g-xx-s08-r (1)packing type (2)package type (3)output voltage code (1) r: tape reel, t: tube (2) s08: sop-8 (3) xx: refer to marking information (4) g: halogen free, l: lead free (4)halogen free
UC34363 preliminary linear integrated circuit unisonic technologies co., ltd 2 of 6 www.unisonic.com.tw qw-r103-059.a ? pin configuration ? pin description pin no. pin name description 1 v cc power supply 2 cv- negative input of the voltage amplifier 3 enable enable controlled on/off for ic 4 vref 3v external voltage reference 5 cc+ positive input of current amplifier 6 cc- negative input of current amplifier 7 output output 8 gnd ground
UC34363 preliminary linear integrated circuit unisonic technologies co., ltd 3 of 6 www.unisonic.com.tw qw-r103-059.a ? block diagram v cc cv- en v ref cc+ cc- output gnd - + compensation comp +- ocp +- cv + - compensation v ref =3v driver + - s rq s r q clock delay ramp d1 d2 cc
UC34363 preliminary linear integrated circuit unisonic technologies co., ltd 4 of 6 www.unisonic.com.tw qw-r103-059.a ? absolute maximum rating parameter symbol ratings unit power supply voltage v cc 30 v cc+ voltage v cc + 10 v cc- voltage v cc - 10 v cv- voltage v cv - 10 v operating junction temperature t j 125 c note: absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. ? electrical characteristics (v in =15v, t a =25c, unless otherwise specified) parameter symbol test conditions min typ max unit power supply power supply voltage v cc 8 30 v standby supply current i standby v cc = 30v 7 15 ma osc oscillator frequency f osc 75 khz cc constant current cc rs=50m ? , rcc1=rcc3=1k, rcc2=rcc4=30k 2 a enable v on 2 v enable logic input leve v off 1.5 v vref reference input voltage v ref iload=5ma 3.0 v protect thermal shutdown t otp 150 c
UC34363 preliminary linear integrated circuit unisonic technologies co., ltd 5 of 6 www.unisonic.com.tw qw-r103-059.a ? test circuit ? typical application circuit
UC34363 preliminary linear integrated circuit unisonic technologies co., ltd 6 of 6 www.unisonic.com.tw qw-r103-059.a utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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