UM607XG-AG6-R

UNISONIC TECHNOLOGIES CO., LTD UM607 CC, CV CONTROL FOR BATTERY CHARGER AND ADAPTOR DESCRIPTION The UTC UM607 is a voltage and current control IC which has precision voltage reference. These devices have been optimized for battery charger, adapter, second controller of switching regulator systems, and other battery systems. 6 5 4 LINEAR INTEGRATED CIRCUIT 1 2 3 SOT-26 FEATURES * Constant Voltage Control (CV) and Constant Current Control (CC) * Input voltage ranging from 2.2V to 14V * 40mA photo coupler drive current typically * 1mA maximum operating current * Internal Precision Voltage Reference : 1.240V ± 1% * Easy compensation and low external component count. ORDERING INFORMATION Ordering Number Lead Free Halogen Free UM607xL-AG6-R UM607xG-AG6-R Package SOT-26 Packing Tape Reel www.unisonic.com.tw Copyright © 2011 Unisonic Technologies Co., Ltd 1 of 7 QW-R105-037.B UM607 MARKING INFORMATION PACKAGE A-CH REFERENCE VOLTAGE CODE LINEAR INTEGRATED CIRCUIT MARKING 65 4 150mV SOT-26 70mV B D UM7 G 1 2 3 Reference Voltage PIN CONFIGURATION PIN DESCRIPTION PIN NO. 1 2 3 4 5 6 PIN NAME A-INPUT GND B+INPUT VCC PC A+INPUT DESCRIPTION Input Pin of the Current Control Loop Ground Line. 0V Reference For All Voltages Input Pin of the Voltage Control Loop DC Supply Line Photo Coupler (P/C) Drive Pin. Sinking Current Only Input Pin of the Current Control Loop UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 7 QW-R105-037.B UM607 BLOCK DIAGRAM LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 7 QW-R105-037.B UM607 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATING (Ta=25°C, unless otherwise specified) PARAMETER SYMBOL RATINGS UNIT DC Supply Voltage VCC 16 V Power Dissipation (Note 2) PD 500 mW Operating Temperature TOPR -40 ~ +85 °C Storage Temperature TSTG -55 ~ +150 °C Notes: 1. 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. 2. Mount on a glass epoxy circuit board of 30x30mm Pad dimension of 50mm2 RECOMMENDED OPERATING CONDITIONS PARAMETER DC Supply Voltage SYMBOL VCC RATINGS 2.2 ~ 14 UNIT V ELECTRICAL CHARACTERISTICS (VCC = 5V, Ta=25°C, unless otherwise specified) PARAMETER Operating Current Leakage Current Saturation Voltage PC Terminal Current Output Voltage High A CH : Current Control Loop Reference Voltage SYMBOL ICC IPC(LEAK) VPC(SAT) IPC VOH VREF(A) TEST CONDITIONS IPC= off V+=VPC=14V IPC= 20 mA RL= 30KΩ IPC= 2.5mA UM607B UM607D 144 66.5 MIN TYP 0.6 500 40 VCC-0.1 150 70 20 8 MAX 1.0 10 700 70 UNIT mA μA mV mA V mV 20 Input Bias Current IB(A) μA Transconduction Gain (Note 1) GM(A) 1.5 mA/mV B CH : Voltage Control Loop Reference Voltage (Note 2) VREF(B) IPC= 1.5mA 1.227 1.240 1.253 V Input Bias Current IB(B) 50 500 nA Transconduction Gain (Note 3) GM(B) 1 3 mA/mV Notes: 1. When the positive input at ICTRL is lower than -151mV, and the voltage is decreased by 1mV, the sinking current at the output OUT will be increased by 8mA. 2. The internal voltage reference is set at 1.240V (bandgap reference). The voltage control loop precision takes into account the cumulative effects of the internal voltage reference deviation as well as the input offset voltage of the trans-conductance operational amplifier. 3. If the voltage on B +Input (the positive input of the amplifier) is higher than the negative amplifier input (VREF(B) = 1.240V), and it is increased by 1mV, the sinking current at the output OUT will be increased by 3mA. 156 73.5 50 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 7 QW-R105-037.B UM607 TYPICAL APPLICATION CIRCUIT LINEAR INTEGRATED CIRCUIT In the above application schematic, the UTC UM607 is used on the secondary side of a flyback adapter (or battery charger) to provide an accurate control of voltage and current. The above feedback loop is made with an optocoupler. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 7 QW-R105-037.B UM607 TYPICAL CHARACTERISTICS Supply Current vs. Supply Voltage 1.2 Supply Current, ICC (mA) 1.0 0.8 0.6 0.4 0.2 0 PC Terminal Current, IPC (mA) LINEAR INTEGRATED CIRCUIT PC Terminal Current vs. Photo Coupler 90 75 60 45 30 15 0 0 2 4 6 8 10 12 14 16 Supply Voltage, VCC (V) 0 2 4 6 8 10 12 14 Photo Coupler, VPC (V) Input Bias Current vs. Ambient Tempreture 16 Supply Current vs. Ambient Tempreture 0.9 Input Bias Current, IB(B) (nA) VIN=2.2V 0.85 Supply Current, ICC (mA) 0.8 0.75 0.7 0.65 0.6 0.55 VIN=5V VIN=12V 120 100 80 60 40 20 0 0.5 -35 -25 -15 -5 5 15 25 35 45 55 65 75 85 Ambient Temperature, Ta (°C) -50 -35 -15 5 25 45 65 85 105 Ambient Temperature, Ta (°C) VREF_A (mV) vs. Ambient Tempreture 73 72 VREF_A (mV) 71 70 69 68 67 -35 1.250 1.245 VREF_B (V) 1.240 VREF_B (V) vs. Ambient Tempreture 1.235 1.230 1.225 -35 -15 5 25 45 65 85 Ambient Temperature, TA ( C) -15 5 25 45 65 Ambient Temperature, TA ( C) 85 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 7 QW-R105-037.B