UNISONIC TECHNOLOGIES CO., LTD UM606 LINEAR INTEGRATED CIRCUIT CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER 6 DESCRIPTION 5 The UTC UM606, for a constant voltage/constant current mode SMPS (switch mode power supplies) application which is a highly integrated solution, it contains one 1.21V voltage reference with ±1% accuracy, one current sensing circuit and two operational amplifiers. The UTC UM606 is an ideal voltage controller for use in adapters and battery chargers because the voltage reference it’s combining with one operational amplifier. And the UTC UM606 is an ideal current limiter for output low side current sensing because the other low voltage reference is combining with the other operational amplifier. 4 1 2 3 SOT-26 FEATURES *Constant Voltage and Constant Current Control *Precision Internal Voltage Reference *Few External Components *Easy Compensation ORDERING INFORMATION Ordering Number Lead Free Halogen Free UM606xL-AG6-R UM606xG-AG6-R www.unisonic.com.tw Copyright © 2011 Unisonic Technologies Co., Ltd Package Packing SOT-26 Tape Reel 1 of 7 QW-R105-034.D UM606 LINEAR INTEGRATED CIRCUIT MARKING PACKAGE CODE MARKING 6 5 SOT-26 - 4 UME6 G: Halogen Free L: Lead Free (For UM606) 1 2 6 5 3 4 SOT-26 D UM6 (For UM606x) 1 PIN CONFIGURATION PIN DESCRIPTION PIN NO. PIN NAME 2 3 G: Halogen Free L: Lead Free Reference Voltage FUNCTION 1 VCTRL Input pin of the voltage control loop 2 GND Ground 3 VOUT Output pin. sinking current only 4 ICTRL Input pin of the current control loop 5 VSENSE Input pin of the current control loop 6 VCC Power supply UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 7 QW-R105-034.D UM606 LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 7 QW-R105-034.D UM606 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (TA=25°C, unless otherwise specified.) PARAMETER SYMBOL RATINGS UNIT DC Supply Voltage VCC 20 V Input Voltage VIN -0.3 ~ VCC V Junction Temperature TJ +150 °C Operating Temperature TOPR -40~+105 °C Storage Temperature TSTG -65 ~ +150 °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 operation is not implied. THERMAL DATA PARAMETER Junction to Ambient Junction to Case SYMBOL θJA θJC UNIT °C/W °C/W RATINGS 2.5 ~ 18 UNIT V °C RECOMMENDED OPERATING CONDITIONS PARAMETER Supply Voltage Operating Temperature RATINGS 250 92 SYMBOL VCC TA -20 ~ +70 ELECTRICAL CHARACTERISTICS (VCC=5V, TA=25°C, unless otherwise specified.) PARAMETER Reference Voltage Current Control Loop Reference SYMBOL VREF VSENSE Low Output Voltage VOL Total Supply Current ICC Input Bias Current IIB Current Out of Pin ICTRL Output Short Circuit Current. Transconduction Gain (VCTRL) Transconduction Gain (ICTRL). IIBI IOS Gmv Gmi TEST CONDITIONS UM606 UM606D UM606 IOUT=2.5mA UM606D UM606 @10mA Sinking Current UM606D UM606 VCC=5V UM606D UM606 @-200mV UM606D Output to VCC. Sink Current Only Sink Current Only UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 1.198 1.186 196 66.5 1 1.5 TYP 1.21 1.21 200 70 200 100 0.6 0.5 50 25 18 27 3.5 7 MAX 1.222 1.234 204 73.5 UNIT V mV mV 1.2 1.0 mA nA μA 50 mA mA/mV mA/mV 4 of 7 QW-R105-034.D UM606 LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION VOUT To primary R2 6 VCC R4 VOUT 3 UM606 VCTRL 1 R3 470K C1 2.2nF C2 22pF Load C3 2.2nF GND 2 ICTRL VSENSE 5 4 R5 22K R1 R6 500 R7 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw GND 5 of 7 QW-R105-034.D UM606 LINEAR INTEGRATED CIRCUIT TYPICAL PERFORMANCE CHARACTERISTICS UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 7 QW-R105-034.D UM606 LINEAR INTEGRATED CIRCUIT TYPICAL PERFORMANCE CHARACTERISTICS(Cont.) Output Short Circuit Current vs. Ambient Temperature 120 110 100 90 80 70 60 50 40 30 20 10 0 -40 VCC=2.5V, VCC=5V, VCC=12.5V -10 20 50 80 110 140 Ambient Temperature, TA(°C) 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 7 of 7 QW-R105-034.D