UNISONIC TECHNOLOGIES CO., LTD UC34163 LINEAR INTEGRATED CIRCUIT DC TO DC CONVERTER CONTROLLER DESCRIPTION SOP-8 The UTC UC34163 is a monolithic regulator subsystem, intended for use as DC-to-DC converter. This device contains a temperature compensated reference, 2 comparators, a duty-cycle control oscillator, driver and high current output switch. FEATURES * Maximum input voltage is 35V. * Low standby current. * Output switch current to 1.5A. * Frequency of operation from 100Hz ~ 100kHz. * Step-down switch regulators. DIP-8 ORDERING INFORMATION Ordering Number Lead Free Halogen Free UC34163L-D08-T UC34163G-D08-T UC34163L-S08-R UC34163G-S08-R UC34163L-S08-T UC34163G-S08-T www.unisonic.com.tw Copyright © 2011 Unisonic Technologies Co., Ltd Package Packing DIP-8 SOP-8 SOP-8 Tube Tape Reel Tube 1 of 4 QW-R103-037.Ca UC34163 LINEAR INTEGRATED CIRCUIT PIN CONFIGURATION BLOCK DIAGRAM Switch Collector Vcc 1 2 SWC SWE VCC R Timing Capacitor GND 3 4 TCAP COMP Q GND 300mV VREF lSENSE V + - UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw Switch Emitter 7 Comparator Inverting Input S OSCILL ATOR CT I + - 8 1.25V VREF ADJ 6 5 IPEAK Sense Current Comparator Voltage 2 of 4 QW-R103-037.Ca UC34163 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (Ta=25°C) PARAMETER Supply Voltage Comparator Input Voltage Range Switch Collector Voltage Switch Emitter Voltage Switch Collector To Emitter Voltage Output Switch Current RATINGS UNIT 35 V -0.3 ~ +35 V 35 V 35 V 35 V 1.5 A DIP-8 1250 mW Power Dissipation (Ta=25°C) PD SOP-8 625 mW ℃ Operating Junction Temperature TJ +125 ℃ Operating Temperature TOPR -20 ~ +85 ℃ Storage Temperature TSTG -40 ~ +150 Note: 1.Absolute maximum ratings are those values beyond which the device which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. 2.The device is guaranteed to meet performance specification within 0℃~+70℃ operating temperature range and assured by design from -20℃~+85℃, characteristic and correlation with static process control. SYMBOL Vcc VIN(COMP) VC(SW) VE(SW) VCE(SW) IOUT THERMAL DATA PARAMETER Junction to Case SYMBOL DIP-8 SOP-8 θJC RATINGS 100 160 UNIT ℃/W ELECTRICAL CHARACTERISTICS (Ta=25℃, VCC = 5.0V, Ta=0 ~ 70℃, unless otherwise specified.) PARAMETER Oscillator Frequency (CT=470pF, Ta=25°C) Charging Current Discharging Current Oscillator Amplitude Discharge to Charge Current Ratio Output Switch Saturation Voltage 1(Note1) Collector Off State Current (Note1) ADJ Current limit Sense Voltage Comparator Threshold Voltage 1 Threshold Voltage 2 Threshold Voltage Line Regulation Input Bias Current Total Device SYMBOL FOSC ICHG IDISCHG VOSC K VCE(SAT) IC(OFF) TEST CONDITIONS MIN TYP MAX UNIT VCC=5 ~ 35V, Ta=25℃ VCC=5 ~ 35V, Ta=25℃ 25 20 140 Ta=25°C Ta=25℃ 35 30 200 0.8 5.2 ISW=1.0A VCE=35.0V,Ta=25°C 8.0 0.01 1.4 100 V μA 280 300 360 mV VTHD1 VTHD2 △VTHD1 IBIAS 1.21 280 1.24 300 2.0 50 1.29 360 5.0 400 V mV mV nA 2.5 4.0 mA ICC UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw kHz μA μA V VSENSE VCC=5 ~ 35V VIN=0V VCC=5 ~ 35V, CT=470pF V6=GND, V7>VTHD1 Note1: Output switch tests are performed under pulsed conditions to minimize power dissipation. Supply Current 45 40 260 3 of 4 QW-R103-037.Ca UC34163 LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT 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. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 4 QW-R103-037.Ca