IRU3073CQ IRF [International Rectifier], IRU3073CQ Datasheet
IRU3073CQ
Related parts for IRU3073CQ
IRU3073CQ Summary of contents
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... Vcc Drv2 Fb2 VcH C1 VcL U1 IRU3073 HDrv REF R7 OCSet Comp LDrv Rt SS/SD R10 Fb1 Gnd PGnd R11 Figure 1 - Typical application of IRU3073. DEVICE PACKAGE IRU3073CQ 16-Pin Plastic QSOP NB (Q) www.irf.com Data Sheet No. PD94699 IRU3073 12V L1 + OUT1 Q5 C10 1 ...
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IRU3073 ABSOLUTE MAXIMUM RATINGS Vcc Supply Voltage ................................................... -0.5 - 25V VcL, VcH Supply Voltage .......................................... -0.5 - 25V Storage Temperature Range ...................................... -65°C To 150°C Operating Junction Temperature Range ..................... CAUTION: Stresses above those listed in "Absolute Maximum Ratings" ...
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PARAMETER SYM Error Amp Fb Voltage Input Bias Current I FB1 Fb Voltage Input Bias Current I FB2 V Voltage Range V P Transconductance Oscillator Frequency Freq Ramp Amplitude V RAMP Output Drivers Rise Time Tr Fall Time Tf Dead ...
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IRU3073 PIN# PIN SYMBOL PIN DESCRIPTION 12 PGnd This pin serves as the separate ground for MOSFET's driver and should be connected to system's ground plane. 13 Gnd This pin serves as analog ground for internal reference and control circuitry. ...
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THEORY OF OPERATION Introduction The IRU3073 is designed for a two output application and it includes one synchronous buck controller and a linear regulator controller. The PWM section is a fixed frequency, voltage mode and consists of a precision ref- ...
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IRU3073 The feedback voltage increases linearly as the injecting current goes down. The injecting current drops to zero when soft-start voltage is around 2V and the output volt- age goes into steady state. As shown in Figure 4, the positive ...
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If the over-current condition is temporary and goes away quickly, the IRU3073 will resume its normal operation. If output is shorted or over-current condition persists, the output voltage will keep going down until it is below 0.4V. Then the output ...
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IRU3073 APPLICATION INFORMATION Design Example: The following example is a typical application for IRU3073, the schematic is Figure 17 on page 16. Supply Voltage Switcher V =V L=V H=12V 2.5V OUT ...
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25%(I ), then the output inductor will be 3.125mH The Coilcraft DO5022HC series provides a range of in- ductors in different values, low profile suitable for large currents. 3.3mH is a good choice for ...
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IRU3073 V DS 90% 10 (ON) (OFF Figure 9 - Switching time waveforms. From IRF7832 data sheet we obtain: IRF7832 t = 12.3ns 21ns f These values are taken ...
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V OUT Comp E Vp=V REF R Gain(dB) H(s) dB Frequency F Z Figure 11 - Compensation network without local feedback and its asymptotic gain plot. The transfer function ( ...
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IRU3073 V OUT E Vp=V REF Gain(dB) H( Figure 12 - Compensation network with local feedback and ...
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LDO Section Output Voltage Programming Output voltage for LDO is programmed by reference volt- age and external voltage divider. The Fb2 pin is the in- verting input of the error amplifier, which is internally ref- erenced to 0.8V. The divider ...
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IRU3073 TYPICAL APPLICATION 2.5V Q3 C13 Drv2 IRLR2703 150uF R2 1.6V Fb2 C14 R14 150uF 1K V C10 0.1uF V C2 33pF R7 C7 Comp 2200pF 24K Rt SS/SD C6 0.1uF Gnd Figure 15 - Typical application ...
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TYPICAL APPLICATION 3.3V Q3 C13 Drv2 IRLR2703 150uF R2 1.6V Fb2 C14 R14 150uF 1K V C10 0.1uF V C2 33pF R7 C7 Comp 2200pF 24K Rt SS/SD C6 0.1uF Gnd Figure 16 - Typical application of ...
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IRU3073 DEMO-BOARD APPLICATION 2.5V Q3 C13 Drv2 IRLR2703 150uF 1.6V R2 Fb2 @ 2A 1K C14 C15 R14 1uF 150uF 1K V C10 0.1uF V C2 33pF R7 C7 Comp 2200pF 24K Rt SS/SD C6 0.1uF Gnd Figure 17 - ...
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... Cap, Poscap 150mF, 6.3V R1 Resistor 10V R2,10,14 Resistor 1K Resistor 5.1K Resistor 100K R7 Resistor 24K Resistor 4.7V Resistor 2.15K, 1% Rev. 1.0 09/17/03 Value Qty Part# 2 IRF7832 1 IRLR2703 1 IRU3073CQ 1 BAT54 1 DO3316P-102 1 DO5022P-332HC 4 16TPB47M 1 ECU-V1H330JCV 2 ECJ-2VF1E104 1 ECU-V1H222KBV 1 ECJ-2VC1H471J 2 6TPB330M 7 ECJ-2VF1C1O5Z 2 6TPB150M www.irf.com IRU3073 Manuf Web site (www ...
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IRU3073 APPLICATION EXPERIMENTAL WAVEFORMS Figure 18 - Normal condition at no load. Ch1: HDrv Ch2: LDrv Ch4: Inductor Current 18 Figure 19 - Gate signals when SS pin pulls low. Ch1: HDrv Ch2: LDrv Figure 20 - Soft-Start. Ch1: V ...
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APPLICATION EXPERIMENTAL WAVEFORMS Figure 21 - Output Shorted at start-up. Ch1: V OUT Ch4: I OUT Figure 23 - Load Transient Response (LDO Section). IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 Rev. 1.0 ...
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IRU3073 (Q) QSOP Package, Narrow Body A B PIN NO. 1 NOTE: ALL MEASUREMENTS ARE IN MILLIMETERS. 20 16-Pin D E DETAIL-A C 0. 16-PIN SYMBOL MIN MAX A 4.80 4.98 ...
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PACKAGE SHIPMENT METHOD PKG PACKAGE DESIG DESCRIPTION Q QSOP Plastic, Narrow Body IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 Rev. 1.0 09/17/03 PIN PARTS COUNT PER REEL 16 2500 Feed ...