UNISONIC TECHNOLOGIES CO., LTD UC3383
PFM CONTROLLED, STEP-UP DC/DC CONVERTERS (VARIABLE DUTY RATIO)
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).
4 5 3
CMOS IC
1
2
SOT-25
1
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 UC3383G-xx-AB3-R UC3383G-xx-AF5-R Package SOT-89 SOT-25 1 VSS CE Pin Assignment 2 3 4 VOUT Lx VOUT NC VSS 5 Lx Packing Tape Reel Tape Reel
Note: Pin Assignment: NC: No Connection CE: Chip Enable xx: Output Voltage, refer to Marking Information.
www.unisonic.com.tw Copyright © 2010 Unisonic Technologies Co., Ltd.
1 of 15 QW-R502-032,H
UC3383
MARKING INFORMATION
PACKAGE VOLTAGE CODE 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 MARKING
CMOS IC
SOT-25
SOT-89
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,H
UC3383
BLOCK DIAGRAM
CMOS IC
UTC UC3383 (VDD is internally connected to the VOUT pin.) VDD Lx Buffer Vss 2 step PFM Control OSC 100/180 kHz + + ~5mV VLx limiter VREF VOUT
Chip Enable
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,H
UC3383
ABSOLUTE MAXIMUM RATINGS
PARAMETER VOUT Input Voltage Lx pin Voltage CE Input Voltage VDD Input Voltage Lx pin Current (Ta=25°C) SYMBOL VOUT VLx VCE VDD ILX
CMOS IC
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.
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. MIN 1.950 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 V 0.20 0.25 -0.25 0.5 V μA μA μA
0.70 0.7
70 50 100 150 0.75
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 15 QW-R502-032,H
UC3383
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.
CMOS IC
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 0.20 0.25 -0.25 0.5 V V 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 0.20 0.25 -0.25 0.5 V V μA μA μA
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 15 QW-R502-032,H
UC3383
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 Same as IDD1. VCE=0V Low ICEL 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.
CMOS IC
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 0.20 0.25 -0.25 0.5
UNIT V V V V V μA μA μA μA Ω % % % kHz kHz V V 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 0.20 0.25 -0.25 0.5
UNIT V V V V V μA μA μA μA Ω % % % kHz kHz V V μA μA μA
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
6 of 15 QW-R502-032,H
UC3383
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 Same as IDD1. VCE=0V Low ICEL 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 High ICEH Same as IDD1. VCE=VOUT×0.95 CE ”High” Current Same as IDD1. VCE=0V Low ICEL Stand-by Current ISTB Same as IDD1.
CMOS IC
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 0.25 -0.25 0.5
V μA μA μA
MIN TYP 3.023 3.100 0.80 0.70 0.7 4.635 20.3 2.115 5.08 75 45 80 120 180
MAX 3.178 10 0.90 1.1 9.365 40.6 4.23 1.0 7.72 80 50 130 210
70 40 100 150 0.75
UNIT V V V V V μA μA μA μA Ω % % % kHz kHz V
0.20 0.25 -0.25 0.5
V μA μA μA
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
7 of 15 QW-R502-032,H
UC3383
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 Same as IDD1. VCE=0V Low ICEL 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. MIN 3.120 TYP 3.200 0.80 0.70 0.7 4.67 20.9 2.13 4.96 75 45 80 120 180
CMOS IC
MAX 3.280 10 0.90 1.1 9.34 41.8 4.26 1.0 7.54 80 50 130 210
70 40 100 150 0.75
UNIT V V V V V μA μA μA μA Ω % % % kHz kHz V
0.20 0.25 -0.25 0.5
V μA μA μA
MIN TYP 3.218 3.300 0.80 0.70 0.7 4.705 21.5 2.145 4.84 75 45 80 120 180
MAX 3.383 10 0.90 1.1 9.41 43 4.29 1.0 7.36 80 50 130 210
70 40 100 150 0.75
UNIT V V V V V μA μA μA μA Ω % % % kHz kHz V
0.20 0.25 -0.25 0.5
V μA μA μA
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
8 of 15 QW-R502-032,H
UC3383
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 Same as IDD1. VCE=0V Low ICEL Stand-by Current ISTB Same as IDD1. UTC UC3383-3.7V (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 4.48 75 45 80 120 180
CMOS IC
MAX 3.690 10 0.90 1.1 9.62 46.6 4.38 1.0 6.82 80 50 130 210
70 40 100 150 0.75
UNIT V V V V V μA μA μA μA Ω % % % kHz kHz V
0.20 0.25 -0.25 0.5
V μA μA μA
MIN TYP 3.608 3.700 0.80 0.70 0.7 4.845 23.9 2.205 4.36 75 45 80 120 180
MAX 3.793 10 0.90 1.1 9.755 47.8 4.41 1.0 6.64 80 50 130 210
70 40 100 150 0.75
UNIT V V V V V μA μA μA μA Ω % % % kHz kHz V
0.20 0.25 -0.25 0.5
V μA μA μA
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
9 of 15 QW-R502-032,H
UC3383
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 Same as IDD1. VCE=0V Low ICEL Stand-by Current ISTB Same as IDD1. UTC UC3383-4.5V (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 4.0 75 45 80 120 180
CMOS IC
MAX 4.100 10 0.90 1.1 9.94 51.4 4.5 1.0 6.1 80 50 130 210
70 40 100 150 0.75
UNIT V V V V V μA μA μA μA Ω % % % kHz kHz V
0.20 0.25 -0.25 0.5
V μA μA μA
MIN TYP MAX 4.388 4.500 4.613 10 0.80 0.90 0.70 0.7 1.1 5.125 10.25 28.8 57.6 2.325 4.65 1.0 3.4 5.2 70 75 80 40 45 50 80 100 120 130 150 180 210 0.75 0.20 0.25 -0.25 0.5
UNIT V V V V V μA μA μA μA Ω % % % kHz kHz V V μA μA μA
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
10 of 15 QW-R502-032,H
UC3383
ELECTRICAL CHARACTRISTICS(Cont.)
CMOS IC
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 Same as IDD1. VCE=0V -0.25 μA Low ICEL Stand-by Current ISTB Same as IDD1. 0.5 μA Note: 1. The Schottky diode (SD) must be type MA735, with reverse current(IR)
