UNISONIC TECHNOLOGIES CO., LTD UC3383 CMOS IC PFM CONTROLLED, STEP-UP DC/DC CONVERTERS (VARIABLE DUTY RATIO) 4 5 1 DESCRIPTION The UTC UC3383 Series are PFM step-up DC/DC switching converter. The UTC UC3383 can support both large and small currents. It automatically switches duty ratio (45%/75%) when it senses changes in load. Both built-in and external transistor types include 5-pin and 3-pin packages, which are provided with either a CE (chip enable) function that reduces power consumption during shut-down mode, or a VDD pin function (separated power and voltage detect pins). 1 2 3 SOT-25 SOT-89 FEATURES * Output Voltage Range: 2.0V~7.0V in 0.1V Increments * Operating (Start-up) Voltage Range: 0.9V~10V * Highly Accurate: Set-up Voltage ±2.5% * Maximum Oscillator Frequency (Max Fosc1): 180kHz (±15%) * Variable Duty Ratio: 45%/75% (±5%) * Both Switching Transistor Built-in and External Types are Available * 5-Lead Package Offer Chip Enable or Independent VOUT Pin Option. ORDERING INFORMATION Ordering Number Package Lead Free Halogen Free UC3383L-xx-AB3-R UC3383G-xx-AB3-R SOT-89 UC3383L-xx-AF5-R UC3383G-xx-AF5-R SOT-25 Note: Pin Assignment: NC: No Connection CE: Chip Enable xx: Output Voltage, refer to Marking Information. www.unisonic.com.tw Copyright © 2011 Unisonic Technologies Co., Ltd. 1 VSS CE Pin Assignment 2 3 4 VOUT Lx VOUT NC VSS 5 Lx Packing Tape Reel Tape Reel 1 of 15 QW-R502-032,I UC3383 CMOS IC MARKING INFORMATION PACKAGE VOLTAGE CODE SOT-25 SOT-89 MARKING 20:2.0V 25:2.5V 26:2.6V 27:2.7V 28:2.8V 30:3.0V 31:3.1V 32:3.2V 33:3.3V 36:3.6V 37:3.7V 40:4.0V 45:4.5V 50:5.0V PIN DESCRIPTION PIN NO. SOT-25 SOT-89 1 2 2 3 4 1 5 3 PIN NAME CE VOUT NC VSS Lx FUNCTION Chip Enable Output voltage monitor, IC internal power supply No Connection Ground Switch UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 15 QW-R502-032,I UC3383 CMOS IC BLOCK DIAGRAM UTC UC3383 (VDD is internally connected to the VOUT pin.) VDD VLx limiter VREF 2step PFM Control OSC 100/180 kHz + - Lx VOUT Buffer Vss Chip Enable + - ~5mV CE Note: The CE pin is only used with the 5-Lead Package. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 15 QW-R502-032,I UC3383 CMOS IC ABSOLUTE MAXIMUM RATINGS PARAMETER VOUT Input Voltage Lx pin Voltage CE Input Voltage VDD Input Voltage Lx pin Current (TA=25°C) RATINGS UNIT 12 V 12 V 12 V 12 V 400 mA SOT-89 500 mW Power Dissipation PD SOT-25 250 mW Operating Junction Temperature TJ +125 °C Ambient Operating Temperature TOPR -30 ~ +80 °C Storage Temperature TSTG -40 ~ +125 °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. SYMBOL VOUT VLx VCE VDD ILX ELECTRICAL CHARACTRISTICS(TA=25℃, VIN=VOUT× 0.6, unless otherwise specified.) UTC UC3383-2.0V (IOUT=10mA) PARAMETER SYMBOL TEST CONDITIONS Output Voltage VOUT L, SD, CL etc. connected Maximum Input Voltage VIN Oscillation Start-up Voltage VST IOUT=1mA Oscillation Hold Voltage VHLD IOUT=1mA Lx Limit Voltage VLxLMT Same as IDD1. FOSC>FOSC1×2 No-Load Input Current IIN IOUT=0mA (Note 1) Supply Current 1(Note 2) IDD1 VIN=VOUT×0.95 Supply Current 2 IDD2 VIN=VOUT+0.5V Lx Leakage Current ILXL No external components, VOUT=VLx=10V. Lx Switch-On Resistance RSWON Same as IDD1. VLx=0.4V Duty Ratio 1 DTY1 Same as IDD1. Measuring of Lx waveform Duty Ratio 2 DTY2 IOUT=1mA. Measuring of Lx on-time Efficiency EFFI L, SD, CL etc. connected FOSC1 Same as IDD1. 75% duty Maximum Oscillation Frequency FOSC2 Same as IDD1. 45% duty FOR 5-PINS PACKAGE ONLY Same as IDD1. High VCEH Existence of Lx Oscillation. CE Voltage Same as IDD1. Low VCEL Disappearance of Lx Oscillation High ICEH Same as IDD1. VCE=VOUT×0.95 CE ”High” Current Low ICEL Same as IDD1. VCE=0V Stand-by Current ISTB Same as IDD1. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 1.950 0.70 0.7 70 50 100 150 TYP MAX UNIT 2.000 2.050 V 10 V 0.80 0.90 V V 1.1 V 4.3 8.6 μA 13.6 27.3 μA 1.9 3.9 μA 1.0 μA 9.1 13.7 Ω 75 80 % 55 60 % 70 % 120 130 kHz 180 210 kHz 0.75 V 0.20 V 0.25 -0.25 0.5 μA μA μA 4 of 15 QW-R502-032,I UC3383 CMOS IC ELECTRICAL CHARACTRISTICS(Cont.) UTC UC3383-2.5V (IOUT=10mA) PARAMETER SYMBOL TEST CONDITIONS Output Voltage VOUT L, SD, CL etc. connected Maximum Input Voltage VIN Oscillation Start-up Voltage VST IOUT=1mA Oscillation Hold Voltage VHLD IOUT=1mA Lx Limit Voltage VLxLMT Same as IDD1. FOSC>FOSC1×2 No-Load Input Current IIN IOUT=0mA (Note 1) Supply Current 1(Note 2) IDD1 VIN=VOUT×0.95 Supply Current 2 IDD2 VIN=VOUT+0.5V Lx Leakage Current ILXL No external components, VOUT=VLx=10V. Lx Switch-On Resistance RSWON Same as IDD1. VLx=0.4V Duty Ratio 1 DTY1 Same as IDD1. Measuring of Lx waveform Duty Ratio 2 DTY2 IOUT=1mA. Measuring of Lx on-time Efficiency EFFI L, SD, CL etc. connected FOSC1 Same as IDD1. 75% duty Maximum Oscillation Frequency FOSC2 Same as IDD1. 45% duty FOR 5-PINS PACKAGE ONLY Same as IDD1. High VCEH Existence of Lx Oscillation. CE Voltage Same as IDD1. Low VCEL Disappearance of Lx Oscillation High ICEH Same as IDD1. VCE=VOUT×0.95 CE ”High” Current Low ICEL Same as IDD1. VCE=0V Stand-by Current ISTB Same as IDD1. UTC UC3383-2.6V (IOUT=10mA) PARAMETER SYMBOL TEST CONDITIONS Output Voltage VOUT L, SD, CL etc. connected Maximum Input Voltage VIN Oscillation Start-up Voltage VST IOUT=1mA Oscillation Hold Voltage VHLD IOUT=1mA Lx Limit Voltage VLxLMT Same as IDD1. FOSC>FOSC1×2 No-Load Input Current IIN IOUT=0mA (Note 1) Supply Current 1(Note 2) IDD1 VIN=VOUT×0.95 Supply Current 2 IDD2 VIN=VOUT+0.5V Lx Leakage Current ILXL No external components, VOUT=VLx=10V. Lx Switch-On Resistance RSWON Same as IDD1. VLx=0.4V Duty Ratio 1 DTY1 Same as IDD1.Measuring of Lx waveform Duty Ratio 2 DTY2 IOUT=1mA. Measuring of Lx on-time Efficiency EFFI L, SD, CL etc. connected FOSC1 Same as IDD1. 75% duty Maximum Oscillation Frequency FOSC2 Same as IDD1. 45% duty FOR 5-PINS PACKAGE ONLY Same as IDD1. High VCEH Existence of Lx Oscillation. CE Voltage Same as IDD1. Low VCEL Disappearance of Lx Oscillation High ICEH Same as IDD1. VCE=VOUT×0.95 CE ”High” Current Low ICEL Same as IDD1. VCE=0V Stand-by Current ISTB Same as IDD1. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN TYP MAX UNIT 2.438 2.500 2.563 V 10 V 0.80 0.90 V 0.70 V 0.7 1.1 V 4.45 8.95 μA 16.65 33.35 μA 2.0 4.05 μA 1.0 μA 7.15 10.8 Ω 70 75 80 % 40 45 50 % 70 % 100 120 130 kHz 150 180 210 kHz 0.75 V 0.20 V 0.25 -0.25 0.5 μA μA μA MIN TYP MAX UNIT 2.535 2.600 2.665 V 10 V 0.80 0.90 V 0.70 V 0.7 1.1 V 4.48 9.02 μA 17.26 34.56 μA 2.02 4.08 μA 1.0 μA 6.76 10.22 Ω 70 75 80 % 40 45 50 % 70 % 100 120 130 kHz 150 180 210 kHz 0.75 V 0.20 V 0.25 -0.25 0.5 μA μA μA 5 of 15 QW-R502-032,I UC3383 CMOS IC ELECTRICAL CHARACTRISTICS(Cont.) UTC UC3383-2.7V (IOUT=10mA) PARAMETER SYMBOL TEST CONDITIONS Output Voltage VOUT L, SD, CL etc. connected Maximum Input Voltage VIN Oscillation Start-up Voltage VST IOUT=1mA Oscillation Hold Voltage VHLD IOUT=1mA Lx Limit Voltage VLxLMT Same as IDD1. FOSC>Fosc1×2 No-Load Input Current IIN IOUT=0mA (Note 1) Supply Current 1(Note 2) IDD1 VIN=VOUT×0.95 Supply Current 2 IDD2 VIN=VOUT+0.5V Lx Leakage Current ILXL No external components, VOUT=VLx=10V. Lx Switch-On Resistance RSWON Same as IDD1. VLx=0.4V Duty Ratio 1 DTY1 Same as IDD1.Measuring of Lx waveform Duty Ratio 2 DTY2 IOUT=1mA. Measuring of Lx on-time Efficiency EFFI L, SD, CL etc. connected Fosc1 Same as IDD1. 75% duty Maximum Oscillation Frequency Fosc2 Same as IDD1. 45% duty FOR 5-PINS PACKAGE ONLY Same as IDD1. High VCEH Existence of Lx Oscillation. CE Voltage Same as IDD1. Low VCEL Disappearance of Lx Oscillation High ICEH Same as IDD1. VCE=VOUT×0.95 CE ”High” Current Low ICEL Same as IDD1. VCE=0V Stand-by Current ISTB Same as IDD1. UTC UC3383-2.8V (IOUT=10mA) PARAMETER SYMBOL TEST CONDITIONS Output Voltage VOUT L, SD, CL etc. connected Maximum Input Voltage VIN Oscillation Start-up Voltage VST IOUT=1mA Oscillation Hold Voltage VHLD IOUT=1mA Lx Limit Voltage VLxLMT Same as IDD1. FOSC>Fosc1×2 No-Load Input Current IIN IOUT=0mA (Note 1) Supply Current 1(Note 2) IDD1 VIN=VOUT×0.95 Supply Current 2 IDD2 VIN=VOUT+0.5V Lx Leakage Current ILXL No external components, VOUT=VLx=10V. Lx Switch-On Resistance RSWON Same as IDD1. VLx=0.4V Duty Ratio 1 DTY1 Same as IDD1,.Measuring of Lx waveform Duty Ratio 2 DTY2 IOUT=1mA. Measuring of Lx on-time Efficiency EFFI L, SD, CL etc. connected Fosc1 Same as IDD1. 75% duty Maximum Oscillation Frequency Fosc2 Same as IDD1. 45% duty FOR 5-PINS PACKAGE ONLY Same as IDD1. High VCEH Existence of Lx Oscillation. CE Voltage Same as IDD1. Low VCEL Disappearance of Lx Oscillation High ICEH Same as IDD1. VCE=VOUT×0.95 CE ”High” Current Low ICEL Same as IDD1. VCE=0V Stand-by Current ISTB Same as IDD1. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN TYP MAX 2.633 2.700 2.768 10 0.80 0.90 0.70 0.7 1.1 4.51 9.09 17.87 35.77 2.04 4.11 1.0 6.37 9.64 70 75 80 40 45 50 70 100 120 130 150 180 210 0.75 UNIT V V V V V μA μA μA μA Ω % % % kHz kHz V 0.20 V 0.25 -0.25 0.5 μA μA μA MIN TYP MAX 2.730 2.800 2.870 10 0.80 0.90 0.70 0.7 1.1 4.54 9.16 18.48 36.98 2.06 4.14 1.0 5.98 9.06 70 75 80 40 45 50 70 100 120 130 150 180 210 0.75 UNIT V V V V V μA μA μA μA Ω % % % kHz kHz V 0.20 V 0.25 -0.25 0.5 μA μA μA 6 of 15 QW-R502-032,I UC3383 CMOS IC ELECTRICAL CHARACTRISTICS(Cont.) UTC UC3383-3.0V (IOUT=30mA) PARAMETER SYMBOL TEST CONDITIONS MIN TYP Output Voltage VOUT L, SD, CL etc. connected 2.925 3.000 Maximum Input Voltage VIN Oscillation Start-up Voltage VST IOUT=1mA 0.80 Oscillation Hold Voltage VHLD IOUT=1mA 0.70 Lx Limit Voltage VLxLMT Same as IDD. FOSC>Fosc1×2 0.7 No-Load Input Current IIN IOUT=0mA (Note 1) 4.6 Supply Current 1(Note 2) IDD1 VIN=VOUT×0.95 19.7 Supply Current 2 IDD2 VIN=VOUT+0.5V 2.1 Lx Leakage Current ILXL No external components, VOUT=VLx=10V. Lx Switch-On Resistance RSWON Same as IDD1. VLx=0.4V 5.2 Duty Ratio 1 DTY1 Same as IDD1. Measuring of Lx waveform 70 75 Duty Ratio 2 DTY2 IOUT=1mA. Measuring of Lx on-time 40 45 Efficiency EFFI L, SD, CL etc. connected 80 Fosc1 Same as IDD1. 75% duty 100 120 Maximum Oscillation Frequency Fosc2 Same as IDD1. 45% duty 150 180 FOR 5-PINS PACKAGE ONLY Same as IDD1. 0.75 High VCEH Existence of Lx Oscillation. CE Voltage Same as IDD1. Low VCEL Disappearance of Lx Oscillation High ICEH Same as IDD1. VCE=VOUT×0.95 CE ”High” Current Low ICEL Same as IDD1. VCE=0V Stand-by Current ISTB Same as IDD1. UTC UC3383-3.1V (IOUT=30mA) PARAMETER SYMBOL TEST CONDITIONS Output Voltage VOUT L, SD, CL etc. connected Maximum Input Voltage VIN Oscillation Start-up Voltage VST IOUT=1mA Oscillation Hold Voltage VHLD IOUT=1mA Lx Limit Voltage VLxLMT Same as IDD. FOSC>Fosc1×2 No-Load Input Current IIN IOUT=0mA (Note 1) Supply Current 1(Note 2) IDD1 VIN=VOUT×0.95 Supply Current 2 IDD2 VIN=VOUT+0.5V Lx Leakage Current ILXL No external components, VOUT=VLx=10V. Lx Switch-On Resistance RSWON Same as IDD1. VLx=0.4V Duty Ratio 1 DTY1 Same as IDD1, Measuring of Lx waveform Duty Ratio 2 DTY2 IOUT=1mA. Measuring of Lx on-time Efficiency EFFI L, SD, CL etc. connected Fosc1 Same as IDD1. 75% duty Maximum Oscillation Frequency Fosc2 Same as IDD1. 45% duty FOR 5-PINS PACKAGE ONLY Same as IDD1. High VCEH Existence of Lx Oscillation. CE Voltage Same as IDD1. Low VCEL Disappearance of Lx Oscillation Same as IDD1. VCE=VOUT×0.95 High ICEH CE ”High” Current Low ICEL Same as IDD1. VCE=0V Stand-by Current ISTB Same as IDD1. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN TYP 3.023 3.100 0.80 0.70 0.7 4.635 20.3 2.115 70 40 100 150 5.08 75 45 80 120 180 MAX 3.075 10 0.90 1.1 9.3 39.4 4.2 1.0 7.9 80 50 130 210 UNIT V V V V V μA μA μA μA Ω % % % kHz kHz V 0.20 V 0.25 -0.25 0.5 μA μA μA MAX 3.178 10 0.90 UNIT V V V V V μA μA μA μA Ω % % % kHz kHz 1.1 9.365 40.6 4.23 1.0 7.72 80 50 130 210 0.75 V 0.20 V 0.25 -0.25 0.5 μA μA μA 7 of 15 QW-R502-032,I UC3383 CMOS IC ELECTRICAL CHARACTRISTICS(Cont.) UTC UC3383-3.2V (IOUT=30mA) PARAMETER SYMBOL TEST CONDITIONS Output Voltage VOUT L, SD, CL etc. connected Maximum Input Voltage VIN Oscillation Start-up Voltage VST IOUT=1mA Oscillation Hold Voltage VHLD IOUT=1mA Lx Limit Voltage VLxLMT Same as IDD. FOSC>Fosc1×2 No-Load Input Current IIN IOUT=0mA (Note 1) Supply Current 1(Note 2) IDD1 VIN=VOUT×0.95 Supply Current 2 IDD2 VIN=VOUT+0.5V Lx Leakage Current ILXL No external components, VOUT=VLx=10V. Lx Switch-On Resistance RSWON Same as IDD1. VLx=0.4V Duty Ratio 1 DTY1 Same as IDD1. Measuring of Lx waveform Duty Ratio 2 DTY2 IOUT=1mA. Measuring of Lx on-time Efficiency EFFI L, SD, CL etc. connected Fosc1 Same as IDD1. 75% duty Maximum Oscillation Frequency Fosc2 Same as IDD1. 45% duty FOR 5-PINS PACKAGE ONLY Same as IDD1. High VCEH Existence of Lx Oscillation. CE Voltage Same as IDD1. Low VCEL Disappearance of Lx Oscillation High ICEH Same as IDD1. VCE=VOUT×0.95 CE ”High” Current Low ICEL Same as IDD1. VCE=0V Stand-by Current ISTB Same as IDD1. UTC UC3383-3.3V (IOUT=30mA) PARAMETER SYMBOL TEST CONDITIONS Output Voltage VOUT L, SD, CL etc. connected Maximum Input Voltage VIN Oscillation Start-up Voltage VST IOUT=1mA Oscillation Hold Voltage VHLD IOUT=1mA Lx Limit Voltage VLxLMT Same as IDD. FOSC>Fosc1×2 No-Load Input Current IIN IOUT=0mA (Note 1) Supply Current 1(Note 2) IDD1 VIN=VOUT×0.95 Supply Current 2 IDD2 VIN=VOUT+0.5V Lx Leakage Current ILXL No external components, VOUT=VLx=10V. Lx Switch-On Resistance RSWON Same as IDD1. VLx=0.4V Duty Ratio 1 DTY1 Same as IDD1. Measuring of Lx waveform Duty Ratio 2 DTY2 IOUT=1mA. Measuring of Lx on-time Efficiency EFFI L, SD, CL etc. connected Fosc1 Same as IDD1. 75% duty Maximum Oscillation Frequency Fosc2 Same as IDD1. 45% duty FOR 5-PINS PACKAGE ONLY Same as IDD1. High VCEH Existence of Lx Oscillation. CE Voltage Same as IDD1. Low VCEL Disappearance of Lx Oscillation High ICEH Same as IDD1. VCE=VOUT×0.95 CE ”High” Current Low ICEL Same as IDD1. VCE=0V Stand-by Current ISTB Same as IDD1. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 3.120 TYP 3.200 0.80 0.70 0.7 4.67 20.9 2.13 70 40 100 150 4.96 75 45 80 120 180 MAX 3.280 10 0.90 1.1 9.34 41.8 4.26 1.0 7.54 80 50 130 210 0.75 V MIN TYP 3.218 3.300 0.80 0.70 0.7 4.705 21.5 2.145 70 40 100 150 UNIT V V V V V μA μA μA μA Ω % % % kHz kHz 4.84 75 45 80 120 180 0.20 V 0.25 -0.25 0.5 μA μA μA MAX 3.383 10 0.90 UNIT V V V V V μA μA μA μA Ω % % % kHz kHz 1.1 9.41 43 4.29 1.0 7.36 80 50 130 210 0.75 V 0.20 V 0.25 -0.25 0.5 μA μA μA 8 of 15 QW-R502-032,I UC3383 CMOS IC ELECTRICAL CHARACTRISTICS(Cont.) UTC UC3383-3.6V (IOUT=30mA) PARAMETER SYMBOL TEST CONDITIONS Output Voltage VOUT L, SD, CL etc. connected Maximum Input Voltage VIN Oscillation Start-up Voltage VST IOUT=1mA Oscillation Hold Voltage VHLD IOUT=1mA Lx Limit Voltage VLxLMT Same as IDD. FOSC>Fosc1×2 No-Load Input Current IIN IOUT=0mA (Note 1) Supply Current 1(Note 2) IDD1 VIN=VOUT×0.95 Supply Current 2 IDD2 VIN=VOUT+0.5V Lx Leakage Current ILXL No external components, VOUT=VLx=10V. Lx Switch-On Resistance RSWON Same as IDD1. VLx=0.4V Duty Ratio 1 DTY1 Same as IDD1. Measuring of Lx waveform Duty Ratio 2 DTY2 IOUT=1mA. Measuring of Lx on-time Efficiency EFFI L, SD, CL etc. connected Fosc1 Same as IDD1. 75% duty Maximum Oscillation Frequency Fosc2 Same as IDD1. 45% duty FOR 5-PINS PACKAGE ONLY Same as IDD1. High VCEH Existence of Lx Oscillation. CE Voltage Same as IDD1. Low VCEL Disappearance of Lx Oscillation High ICEH Same as IDD1. VCE=VOUT×0.95 CE ”High” Current Low ICEL Same as IDD1. VCE=0V Stand-by Current ISTB Same as IDD1. MIN 3.510 TYP 3.600 0.80 0.70 0.7 4.81 23.3 2.19 70 40 100 150 4.48 75 45 80 120 180 MAX 3.690 10 0.90 1.1 9.62 46.6 4.38 1.0 6.82 80 50 130 210 0.75 V 0.20 V 0.25 -0.25 0.5 μA μA μA UTC UC3383-3.7V (IOUT=30mA) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX Output Voltage VOUT L, SD, CL etc. connected 3.608 3.700 3.793 Maximum Input Voltage VIN 10 Oscillation Start-up Voltage VST IOUT=1mA 0.80 0.90 Oscillation Hold Voltage VHLD IOUT=1mA 0.70 Lx Limit Voltage VLxLMT Same as IDD. FOSC>Fosc1×2 0.7 1.1 No-Load Input Current IIN IOUT=0mA (Note 1) 4.845 9.755 Supply Current 1(Note 2) IDD1 VIN=VOUT×0.95 23.9 47.8 Supply Current 2 IDD2 VIN=VOUT+0.5V 2.205 4.41 Lx Leakage Current ILXL No external components, VOUT=VLx=10V. 1.0 Lx Switch-On Resistance RSWON Same as IDD1. VLx=0.4V 4.36 6.64 Duty Ratio 1 DTY1 Same as IDD1. Measuring of Lx waveform 70 75 80 Duty Ratio 2 DTY2 IOUT=1mA. Measuring of Lx on-time 40 45 50 Efficiency EFFI L, SD, CL etc. connected 80 100 120 130 Fosc1 Same as IDD1. 75% duty Maximum Oscillation Frequency Fosc2 Same as IDD1. 45% duty 150 180 210 FOR 5-PINS PACKAGE ONLY Same as IDD1. 0.75 High VCEH Existence of Lx Oscillation. CE Voltage Same as IDD1. 0.20 Low VCEL Disappearance of Lx Oscillation High ICEH Same as IDD1. VCE=VOUT×0.95 0.25 CE ”High” Current Low ICEL Same as IDD1. VCE=0V -0.25 Stand-by Current ISTB Same as IDD1. 0.5 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw UNIT V V V V V μA μA μA μA Ω % % % kHz kHz UNIT V V V V V μA μA μA μA Ω % % % kHz kHz V V μA μA μA 9 of 15 QW-R502-032,I UC3383 CMOS IC ELECTRICAL CHARACTRISTICS(Cont.) UTC UC3383-4.0V (IOUT=30mA) PARAMETER SYMBOL TEST CONDITIONS Output Voltage VOUT L, SD, CL etc. connected Maximum Input Voltage VIN Oscillation Start-up Voltage VST IOUT=1mA Oscillation Hold Voltage VHLD IOUT=1mA Lx Limit Voltage VLxLMT Same as IDD. FOSC>Fosc1×2 No-Load Input Current IIN IOUT=0mA (Note 1) Supply Current 1(Note 2) IDD1 VIN=VOUT×0.95 Supply Current 2 IDD2 VIN=VOUT+0.5V Lx Leakage Current ILXL No external components, VOUT=VLx=10V. Lx Switch-On Resistance RSWON Same as IDD1. VLx=0.4V Duty Ratio 1 DTY1 Same as IDD1. Measuring of Lx waveform Duty Ratio 2 DTY2 IOUT=1mA. Measuring of Lx on-time Efficiency EFFI L, SD, CL etc. connected Fosc1 Same as IDD1. 75% duty Maximum Oscillation Frequency Fosc2 Same as IDD1. 45% duty FOR 5-PINS PACKAGE ONLY Same as IDD1. High VCEH Existence of Lx Oscillation. CE Voltage Same as IDD1. Low VCEL Disappearance of Lx Oscillation High ICEH Same as IDD1. VCE=VOUT×0.95 CE ”High” Current Low ICEL Same as IDD1. VCE=0V Stand-by Current ISTB Same as IDD1. MIN TYP 3.900 4.000 0.80 0.70 0.7 4.95 25.7 2.25 70 40 100 150 4.0 75 45 80 120 180 MAX 4.100 10 0.90 1.1 9.94 51.4 4.5 1.0 6.1 80 50 130 210 0.75 V 0.20 V 0.25 -0.25 0.5 μA μA μA UTC UC3383-4.5V (IOUT=30mA) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX Output Voltage VOUT L, SD, CL etc. connected 4.388 4.500 4.613 Maximum Input Voltage VIN 10 Oscillation Start-up Voltage VST IOUT=1mA 0.80 0.90 Oscillation Hold Voltage VHLD IOUT=1mA 0.70 Lx Limit Voltage VLxLMT Same as IDD. FOSC>Fosc1×2 0.7 1.1 No-Load Input Current IIN IOUT=0mA (Note 1) 5.125 10.25 Supply Current 1(Note 2) IDD1 VIN=VOUT×0.95 28.8 57.6 Supply Current 2 IDD2 VIN=VOUT+0.5V 2.325 4.65 Lx Leakage Current ILXL No external components, VOUT=VLx=10V. 1.0 Lx Switch-On Resistance RSWON Same as IDD1. VLx=0.4V 3.4 5.2 Duty Ratio 1 DTY1 Same as IDD1. Measuring of Lx waveform 70 75 80 Duty Ratio 2 DTY2 IOUT=1mA. Measuring of Lx on-time 40 45 50 Efficiency EFFI L, SD, CL etc. connected 80 100 120 130 Fosc1 Same as IDD1. 75% duty Maximum Oscillation Frequency Fosc2 Same as IDD1. 45% duty 150 180 210 FOR 5-PINS PACKAGE ONLY Same as IDD1. 0.75 High VCEH Existence of Lx Oscillation. CE Voltage Same as IDD1. 0.20 Low VCEL Disappearance of Lx Oscillation High ICEH Same as IDD1. VCE=VOUT×0.95 0.25 CE ”High” Current Low ICEL Same as IDD1. VCE=0V -0.25 Stand-by Current ISTB Same as IDD1. 0.5 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw UNIT V V V V V μA μA μA μA Ω % % % kHz kHz UNIT V V V V V μA μA μA μA Ω % % % kHz kHz V V μA μA μA 10 of 15 QW-R502-032,I UC3383 CMOS IC ELECTRICAL CHARACTRISTICS(Cont.) UTC UC3383-5.0V (IOUT=50mA) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage VOUT L, SD, CL etc. connected 4.875 5.000 5.125 V Maximum Input Voltage VIN 10 V Oscillation Start-up Voltage VST IOUT=1mA 0.80 0.90 V Oscillation Hold Voltage VHLD IOUT=1mA 0.70 V Lx Limit Voltage VLxLMT Same as IDD1. FOSC>Fosc1×2 0.7 1.1 V No-Load Input Current IIN IOUT=0mA (Note 1) 5.3 10.6 μA Supply Current 1(Note 2) IDD1 VIN=VOUT×0.95 31.7 63.4 μA Supply Current 2 IDD2 VIN=VOUT+0.5V 2.4 4.8 μA Lx Leakage Current ILXL No external components, VOUT=VLx=10V. 1.0 μA Lx Switch-On Resistance RSWON Same as IDD1. VLx=0.4V 2.8 4.3 Ω Duty Ratio 1 DTY1 Same as IDD1. Measuring of Lx waveform 70 75 80 % Duty Ratio 2 DTY2 IOUT=1mA. Measuring of Lx on-time 40 45 50 % Efficiency EFFI L, SD, CL etc. connected 85 % Fosc1 Same as IDD1. 75% duty 100 120 130 kHz Maximum Oscillation Frequency Fosc2 Same as IDD1. 45% duty 150 180 210 kHz FOR 5-PINS PACKAGE ONLY Same as IDD1. 0.75 V High VCEH Existence of Lx Oscillation. CE Voltage Same as IDD1. 0.20 V Low VCEL Disappearance of Lx Oscillation High ICEH Same as IDD1. VCE=VOUT×0.95 0.25 μA CE ”High” Current Low ICEL Same as IDD1. VCE=0V -0.25 μA Stand-by Current ISTB Same as IDD1. 0.5 μA Note: 1. The Schottky diode (SD) must be type MA735, with reverse current(IR)<1.0μA at reverse voltage (VR) =10V. 2. "Supply Current 1" is the supply current while the oscillator is continuously oscillating. The current actually provided by an external VIN source is represented by "No-Load Input Current (IIN)". UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 11 of 15 QW-R502-032,I UC3383 CMOS IC TYPICAL APPLICATION CIRCUITS UTC UC3383 1 2 3 L VIN VOUT SD + L: 100µH SD: MA735 (Schottky diode; MATSUSHITA) C L : 16V 47µF CL GND Fig.1 3-Lead Package Application(SOT-89) 4 5 L VIN UTC UC3383 1 3 2 VOUT SD CL CE + L: 100µH SD: MA735 (Schottky diode; MATSUSHITA) CL : 16V 47µF GND Fig.2 5-Lead Package Application(SOT-25) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 12 of 15 QW-R502-032,I UC3383 CMOS IC TYPICAL CHARACTERISTICS (BUILT-IN SWITCHING TRANSISTOR) (1) OUTPUT VOLTAGE vs. OUTPUT CURREN L3383-3.0V 3.5 6 L=100µ H,C=47µ F (Tantalum) 2.5 Output Voltage, VOUT (V) 2.0V 3.0 Output Voltage, VOUT (V) L3383-5.0V 1.5V 2.0 1.2V 1.5 1.8V VIN =0.9V 1.0 0.5 0.0 20 0 40 60 80 4 2.0V 3 1.5V 2 VIN =0.9V 1 0 Output Current, IOUT (mA) 20 Eficiency, EFFI (%) Eficiency, EFFI (%) 0.9V 1.5V 1.8V 20 0 0 20 40 60 80 1.2V 0.9V 40 0 20 40 60 80 Output Current, IOUT(mA) (3) RIPPLE VOLTAGE vs. OUTPUT CURRENT L3383-3.0V L=100µH, C=47µ F (Tantalum) L=100µH, C=47µ F (Tantalum) 100 Ripple, VR(mVP-P- ) Ripple, VR(mVP-P) 100 L3383-5.0V 120 80 VIN =1.5V 60 40 20 0 20 40 VIN=3.0V 80 2.0V 60 40 20 1.2V 0.9V 0 1.5V 20 0 100 2.0V 60 Output Current, IOUT(mA) 100 100 100 L=100µH, C=47µF (Tantalum) VIN=3.0V 80 60 40 80 L3383-5.0V VIN=2.0V 1.2V 60 Output Current, IOUT (mA) L=100µH, C=47µF (Tantalum) 80 1.2V 40 (2) EFFICIENCY vs. OUTPUT CURRENT (3) L3383-3.0V 100 3.0V 5 0 100 L=100µ H,C=47µ F (Tantalum) 60 80 100 Output Current, IOUT(mA) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 0 1.5V 0 20 40 60 80 100 Output Current, IOUT(mA) 13 of 15 QW-R502-032,I Lx Switching-on Resistance, Rswon (Ω) Current Consumption 1, IDD1 (μA) Opfrating Start Voltage, Retain Voltage, VST, VHLD(V) Output Voltage, VOUT (V) Opfrating Start Voltage, Retain Voltage, VST, VHLD(V) Current Consumption 2, IDD2 (μA) UC3383 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw CMOS IC TYPICAL CHARACTERISTICS FOR UC3383-5.0 QW-R502-032,I 14 of 15 UC3383 TYPICAL CHARACTERISTICS FOR UC3383-5.0V(cont.) Dutyratio 1, 2 Duty 1, 2 (%) Maximum Osc Frequency1, 2, Max FOSC1, 2(kHZ) CMOS IC 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 15 of 15 QW-R502-032,I