irs2548d International Rectifier Corp., irs2548d Datasheet
irs2548d
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irs2548d Summary of contents
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... Power Supplies Typical Connection Diagram www.irf.com SMPS/LED DRIVER PFC + HALF-BRIDGE CONTROL IC Product Summary Topology V OFFSET V OUT I & I (typical & t (typical) ON OFF Deadtime (typical) Package April 18, 2011 IRS2548D Half Bridge 600V VCC 500mA/500mA 120nS/50nS 1.6uS 14-Lead SOIC © 2011 International Rectifier ...
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... Functional Block Diagram State Diagram Input/Output Pin Equivalent Circuit Diagram Lead Definitions Lead Assignments Application Information and Additional Details Package Details Tape and Reel Details Part Marking Information Ordering Information www.irf.com © 2011 International Rectifier 2 IRS2548D Page ...
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... Description The IRS2548D is a fully integrated, fully protected 600V LED or switched mode power supply control IC with integrated PFC control for a Boost pre-regulator. The IRS2548D is based on the popular IRS2168D electronic ballast control IC re-designed for use in LED driver or half-bridge power supply applications. The PFC circuitry operates in critical conduction mode and provides high PF, low THD and DC bus regulation ...
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... IR’s Consumer qualification level is granted by extension of the higher Industrial level. ††† MSL2 260° C (per IPC/JEDEC J-STD-020) Class A (per JEDEC standard JESD22-A115) Class 1C (per EIA/JEDEC standard EIA/JESD22-A114) Class I, Level A (per JESD78) Yes http://www.irf.com/ 4 IRS2548D †† © 2011 International Rectifier ...
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... V. Please note that this supply pin should not be driven by a low impedance DC power source greater than V specified in the electrical characteristics section. CLAMP www.irf.com Definition and COM, with a nominal breakdown voltage CC 5 IRS2548D Min. Max. Units -0.3 625 V B – 0 0 ...
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... Run Mode V CC Supply Current V CC Zener Clamp Voltage V CLAMP www.irf.com Definition to keep the internal 15.6 V zener regulating Min Typ 11.5 12.5 9.5 10.5 1.5 --- 250 --- 400 --- 14.6 15.6 6 IRS2548D Min. Max. V BSUV+ V CLAMP -1 600 V CLAMP V CCUV+ †† 300 -25 125 . CLAMP Max Units Test Conditions V CC rising from 13 ...
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... V --- 300 --- ns --- 400 --- us 1.1 1.2 1.3 © 2011 International Rectifier 7 IRS2548D MODE=RUN V BS rising from falling from 14V 600V MODE = RUN V VBUS = 3.5V VCOMP=4.0V MODE = RUN V VBUS = 4.5V VCOMP=4.0V VBUS=3.5V ICOMP=ICOMP_ SOURCE - 5uA VBUS=5.0V ICOMP=ICOMP_ SINK + 5uA VBUS=4.0V V COMP = 4. 1mA VBUS=4 ...
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... V --- 0 --- 1.15 1.25 1. --- 2.0 --- V --- 1.5 --- --- 0V --- V V --- 0 --- --- 0 100 mV --- 0 100 --- 120 --- nsec --- 50 --- --- 180 --- mA --- 260 --- --- 13.7 --- --- --- © 2011 International Rectifier 8 IRS2548D MODE = RUN VCC = 14.0V MODE = FAULT or UVLO MODE = RUN MODE = FAULT BIAS - CBS=0.1uF VB=10V ...
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... Functional Block Diagram www.irf.com Values in block diagram are typical values 9 IRS2548D © 2011 International Rectifier ...
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... State Diagram Please refer to application diagram on page 1. www.irf.com All values are typical. 10 IRS2548D © 2011 International Rectifier ...
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... Input/Output Pin Equivalent Circuit Diagrams www.irf.com © 2011 International Rectifier 11 IRS2548D ...
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... Logic & Low-Side Gate Driver Supply VB High-Side Gate Driver Floating Supply VS High Voltage Floating Return HO High-Side Gate Driver Output Lead Assignments www.irf.com Description VBUS 2 13 FMIN VS COMP VCC COM 10 5 PFC ENN IRS2548D © 2011 International Rectifier ...
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... IC is fully functional before the high and low-side output drivers and PFC are activated. Figure 1 shows a possible VCC supply voltage scheme using the micro-power start- up current of the IRS2548D together with a snubber charge pump from the half-bridge output ( ...
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... IC enters run mode. The operating frequency is set to the minimum limit, which is programmed by the external resistor (RFMIN) at the FMIN pin. If the IRS2548D is used in a series resonant configuration the frequency can be increased to regulate the system output voltage. This can be implemented by sinking additional current from the FMIN pin with an ...
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... A power factor of 1.0 corresponds to zero phase shift and a THD of 0% representing a pure sinusoidal current waveform. In order to provide a high PF and a low THD the IRS2548D includes an active power factor correction (PFC) circuit. The control method implemented in the IRS2548D ...
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... Control COMP OC COM CCOMP RVBUS (-) Figure 10: IRS2548D simplified PFC control circuit. The VBUS pin is regulated against a fixed internal 4V reference voltage for regulating the DC bus voltage (Figure 11). The feedback loop is performed by an operational transconductance amplifier (OTA) that sinks or sources a current to the external capacitor at the COMP pin ...
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... The maximum current is programmed with the external resistor RCS and an internal threshold of 1.25V (VCSTH+). This threshold determines the over-current limit of the system MAX MAX 17 IRS2548D Equivalent RFMIN (Kohms) [Amps Peak] CS [Ohms] © 2011 International Rectifier 50 ...
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... Proper core sizing and air-gapping should be considered in the inductor design. Step 3: Calculate PFC over-current resistor ROC value where VCSTH+ = 1.25V www.irf.com 2 η ) ⋅ VAC ⋅ MIN MIN P ⋅ VBUS OUT i over the specified system operating temperature PK 18 IRS2548D [Henries] [Amps Peak] [Ohms] © 2011 International Rectifier ...
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... Package Details www.irf.com © 2011 International Rectifier 19 IRS2548D ...
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... Tape and Reel Details www.irf.com © 2011 International Rectifier 20 IRS2548D ...
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... Part Marking Information www.irf.com © 2011 International Rectifier 21 IRS2548D ...
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... For technical support, please contact IR’s Technical Assistance Center www.irf.com Standard Pack Form Tube/Bulk SOIC14N Tape and Reel http://www.irf.com/technical-info/ WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105 22 IRS2548D Complete Part Number Quantity 55 IRS2548DSPBF 2500 IRS2548DSTRPBF © 2011 International Rectifier ...