UNISONIC TECHNOLOGIES CO., LTD UM606 LINEAR INTEGRATED CIRCUIT CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER 6 DESCRIPTION 5 4 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. 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 UM606xG-AG6-R Package SOT-26 Packing Tape Reel MARKING PACKAGE CODE MARKING 6 5 4 SOT-26 (For UM606) - UME6G 1 6 SOT-26 (For UM606x) D 2 3 4 UM6 G 1 www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd 5 2 Reference Voltage 3 1 of 8 QW-R105-034.G UM606 LINEAR INTEGRATED CIRCUIT PIN CONFIGURATION PIN DESCRIPTION PIN NO. 1 2 3 4 5 6 FUNCTION Input pin of the voltage control loop Ground Output pin. sinking current only Input pin of the current control loop Input pin of the current control loop Power supply BLOCK DIAGRAM 6 VCC VCTRL 1 Voltage Reference ICTRL 4 1.21V + 3 VOUT + - PIN NAME VCTRL GND VOUT ICTRL VSENSE VCC VSENSE 5 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 GND 2 of 8 QW-R105-034.G 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 RECOMMENDED OPERATING CONDITIONS PARAMETER SYMBOL VCC Supply Voltage RATINGS 250 92 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 IIBI Output Short Circuit Current. Transconduction Gain (VCTRL) Transconduction Gain (ICTRL). IOS Gmv Gmi TEST CONDITIONS UM606 UM606D UM606 IOUT=2.5mA UM606D UM606 @10mA Sinking Current UM606D UM606 VCC=5V UM606D UM606 UM606D Output to VCC. Sink Current Only Sink Current Only @-200mV 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 3 of 8 QW-R105-034.G UM606 LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT VOUT VREF R1 R2 (V) R1 Current Limit VSENSE (A) RSS Figure 1. Typical Application 1 of UTC UM606 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 8 QW-R105-034.G UM606 LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT(Cont.) VOUT VREF IL RSS R1 R2 (IL RSS ) (V) R1 Current Limit VSENSE (A) RSS Figure 2. Typical Application 2 of UTC UM606 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 8 QW-R105-034.G UM606 LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT(Cont.) VOUT+ To primary R2 UTC UM606 R4 VCC 1.210V + C1 R3 VOUT + - IL + VCTRL Load C3 GND R5 VSENSE ICTRL R1 R6 500 VOUT VREF Current Limit RSS VOUT- R1 R2 (IL RSS ) (V) R1 VSENSE VREF VSENSE VREF RSS (A) Figure 3. Typical Application 3 of UTC UM606 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 8 QW-R105-034.G UM606 LINEAR INTEGRATED CIRCUIT TYPICAL PERFORMANCE CHARACTERISTICS UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 7 of 8 QW-R105-034.G UM606 LINEAR INTEGRATED CIRCUIT TYPICAL PERFORMANCE CHARACTERISTICS(Cont.) Output Short Circuit Current vs. Ambient Temperature 60 50 40 30 20 10 0 -40 VCC=2.5V, VCC=5V, VCC=12.5V -20 0 20 40 60 80 100 120 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 8 of 8 QW-R105-034.G