UNISONIC TECHNOLOGIES CO., LTD UM606
CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER
DESCRIPTION
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.
6 5 4
LINEAR INTEGRATED CIRCUIT
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 Package SOT-26 Packing Tape Reel
www.unisonic.com.tw Copyright © 2011 Unisonic Technologies Co., Ltd
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UM606
MARKING
PACKAGE CODE 65 SOT-26 (For UM606) 1 6 SOT-26 D (For UM606x) 1 2 3 UM6 2 5 3 4 UME6 4 G: Halogen Free L: Lead Free MARKING
LINEAR INTEGRATED CIRCUIT
G: Halogen Free L: Lead Free Reference Voltage
PIN CONFIGURATION
PIN DESCRIPTION
PIN NO. PIN NAME 1 2 3 4 5 6 VCTRL GND VOUT ICTRL VSENSE VCC Ground Output pin. sinking current only Input pin of the current control loop Input pin of the current control loop Power supply FUNCTION Input pin of the voltage control loop
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R105-034.D
UM606
BLOCK DIAGRAM
LINEAR INTEGRATED CIRCUIT
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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 RATINGS 250 92 UNIT °C/W °C/W
RECOMMENDED OPERATING CONDITIONS
PARAMETER Supply Voltage Operating Temperature SYMBOL VCC TA RATINGS 2.5 ~ 18 -20 ~ +70 UNIT V °C
ELECTRICAL CHARACTERISTICS (VCC=5V, TA=25°C, unless otherwise specified.)
PARAMETER Reference Voltage Current Control Loop Reference Low Output Voltage Total Supply Current Input Bias Current Current Out of Pin ICTRL Output Short Circuit Current. Transconduction Gain (VCTRL) Transconduction Gain (ICTRL). SYMBOL VREF VSENSE VOL ICC IIB IIBI IOS Gmv Gmi UM606 @-200mV UM606D Output to VCC. Sink Current Only Sink Current Only TEST CONDITIONS UM606 UM606D UM606 IOUT=2.5mA UM606D UM606 @10mA Sinking Current UM606D UM606 VCC=5V UM606D MIN 1.198 1.186 196 66.5 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
1 1.5
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TYPICAL APPLICATION
LINEAR INTEGRATED CIRCUIT
VOUT
To primary 6 VCC VOUT 3 VCTRL 1 C2 22pF C3 2.2nF GND 2 ICTRL 4 VSENSE 5 R5 22K R1 R2 R4 R3 470K C1 2.2nF
Load
UM606
R6 500 R7
GND
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TYPICAL PERFORMANCE CHARACTERISTICS
LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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Output Short Circuit Current vs. Ambient Temperature
120 110 100 90 80 70 60 50 40 30 20 10 0 -40
LINEAR INTEGRATED CIRCUIT
TYPICAL PERFORMANCE CHARACTERISTICS(Cont.)
VCC=2.5V, VCC=5V, VCC=12.5V
-10
20
50
80
110
140
Ambient Temperature, TA(°C)
U TC 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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www.unisonic.com.tw
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