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IRS2573DSTRPBF Datasheet(PDF) 1 Page - International Rectifier |
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IRS2573DSTRPBF Datasheet(HTML) 1 Page - International Rectifier |
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1 / 28 page  www.irf.com © 2010 International Rectifier March 29, 2010 Datasheet No – PD97477 IRS2573D HID BALLAST CONTROL IC Datasehet Features • Buck, full-bridge and lamp control in one IC • Continuous/critical-conduction mode buck control • 600V high and low-side full-bridge driver • 600V high-side buck Driver • Low-side ignition FET gate driver • Integrated bootstrap FETs for full-bridge high-side drivers • Constant lamp power control • Programmable buck cycle-by-cycle over-current protection • Programmable buck output voltage limitation • Programmable lamp current limitation • Programmable full-bridge frequency • Fault latch reset input • Programmable ignition counter (21sec/64sec typical) • Programmable lamp under-voltage fault counter (197sec typical) for short-circuit or lamp does not warm-up • Fast transient lamp under-voltage event counter (16384 typical) for arc instability or end-of-life • Programmable lamp over-voltage fault counter (787sec typical) for open-circuit or lamp extinguishes • Programmable good fault reset counter (2730sec typical) • Micro-controller compatible timing thresholds • Internal 15.6V zener clamp diode on VCC • Micropower startup (150µA) • Latch immunity and ESD protection on all pins Product Summary Topology Full-Bridge & Buck VOFFSET 600 V VOUT VCC IO+, IO-, IO-Buck (typical) 180mA, 260mA, 400mA Deadtime (typical) 1.2 µs Duty Cycle 50% ±1% Package Options SOIC28W Typical Application Diagram RVSENSE2 RVSENSE1 CICOMP RIREF CVCC1 CBB CBS1 RHO1 RS MLS1 RISENSE RLO1 MHS1 CT CVSENSE CISENSE CBS2 RHO2 MLS2 RLO2 MHS2 CVCC2 14VDC CBUCK LBUCK DBUCK MBUCK RB CTIGN 1 2 3 5 6 7 8 9 28 27 26 25 24 23 22 21 VBB BUCK CS ICOMP PCOMP TOFF IREF VB2 LO2 LO1 VS1 HO1 VB1 VS2 HO2 17 18 12 CT VCC COM 11 10 19 20 OV OC VSENSE ISENSE ZX MIGN CIGN TIGN RIGN DIGN RZX VSB 4 15 16 14 TIGN TCLK 13 RST IGN CPCOMP RCS CTOFF ROC ROV CTCLK BUS (+) BUS (-) DBB RBB3 DHO2 DLO2 DHO1 DLO1 RDB COV COV (+) (-) CBUS DBS RBB1 RBB2 RVSENSE3 400VDC LAMP R1 CCS RDHO1 RDLO1 RDHO2 RDLO2 RVSENSE |
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