IRS2530DPBF

July 09, 2008 IRS2530D(S) DIM8 DIMMING BALLAST CONTROL IC Product Summary IC Features • • • • • • • • • • • TM Dimming ballast control plus half-bridge driver Closed-loop lamp current dimming control Internal non-ZVS protection Internal crest factor protection Programmable preheat time Fixed dead-time (2.0μs typ.) Lamp insert auto-restart Internal bootstrap MOSFET Internal 15.6V zener clamp diode on Vcc Micropower startup (250μA) Latch immunity and ESD protection Topology Half-Bridge VOFFSET 600 V VOUT VCC IO+ & IO- (typical) 180mA & 260mA Deadtime (typical) 2.0μs Package Types Ballast System Features • • • • • • • • • Single chip dimming solution Simple lamp current dimming control method Single lamp current sensing resistor required No half-bridge current-sensing resistor required No external protection circuits required (fully PDIP8 SO8 internal) Flash-free lamp start at all dimming levels Large reduction in component count Typical applications Easy to use for fast design cycle time • Linear dimming ballast (down to 10%) Increased manufacturability and reliability • 3-way dimming ballast • Multi-level switch dimming ballast Typical Connection Diagram L AC LINE INPUT F1 LF BR1 RVCC1 N RVCC2 RLIM1 CF CBUS VCC CVCC2 COM VB 1 8 IRS2530D CVCC1 RLIM2 2 CDIM DIM CVCO VCO 3 4 7 6 5 RHO MHS HO VS LO LRES:A CDC CBS LRES:B CSNUB RLO CRES MLS SPIRAL CFL LAMP CH1 DCP2 RDIM1 1-10V DIM INPUT RLMP2 CPH RVCO (+) RLMP1 CH2 CFB RFB DCP1 LRES:C RDIM2 (-) RCS www.irf.com © 2008 International Rectifier 1 IRS2530D(S) Table of Contents Page Description 3 Qualification Information 4 Absolute Maximum Ratings 5 Recommended Operating Conditions 6 Electrical Characteristics 7 Input/Output Pin Equivalent Circuit Diagram 9 Lead Definitions 10 Lead Assignments 10 State Diagram 11 Application Information and Additional Details 12 Package Details 20 Tape and Reel Details 21 Part Marking Information 22 Ordering Information 23 www.irf.com © 2008 International Rectifier 2 IRS2530D(S) Description This IC takes full advantage of IR’s patented ballast and high-voltage technologies to realize a simple, highperformance dimming ballast solution. A single high-voltage pin senses the half-bridge current and voltage to perform necessary ballast protection functions. The DC dim input voltage reference and the AC lamp current feedback have been coupled together allowing a single pin to be used for dimming. Combining these high-voltage control algorithms together with a simple dimming method in a single 8-pin IC results in a large reduction in component count, an increase in manufacturability and reliability, a reduced design cycle time, while maintaining high dimming ballast system performance Block Diagram Bootstrap MOSFET VCC 1 Driver Logic UVLO COM 2 High-Side Half-bridge Driver 8 VB 7 HO 6 VS 5 LO 1uA Voltage Controlled Oscillator VCO 4 Fault Logic Crest Factor Protection Non-ZVS Protection Dimming Control DIM Half-bridge Voltage Sensing Low-Side Half-bridge Driver 3 Restart Logic www.irf.com © 2008 International Rectifier 3 IRS2530D(S) † Qualification Information Qualification Level Moisture Sensitivity Level Machine Model ESD Human Body Model IC Latch-Up Test RoHS Compliant Industrial†† Comments: This family of ICs has passed JEDEC’s Industrial qualification. IR’s Consumer qualification level is granted by extension of the higher Industrial level. MSL2††† SOIC8 (per IPC/JEDEC J-STD-020C) Not applicable PDIP8 (non-surface mount package style) Class C (per JEDEC standard EIA/JESD22-A115) Class 3A (per EIA/JEDEC standard JESD22-A114) Class I, Level A (per JESD78A) Yes † †† Qualification standards can be found at International Rectifier’s web site http://www.irf.com/ Higher qualification ratings may be available should the user have such requirements. Please contact your International Rectifier sales representative for further information. ††† Higher MSL ratings may be available for the specific package types listed here. Please contact your International Rectifier sales representative for further information. www.irf.com © 2008 International Rectifier 4 IRS2530D(S) Absolute Maximum Ratings Absolute Maximum Ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters are absolute voltages referenced to COM, all currents are defined positive into any lead. The Thermal Resistance and Power Dissipation ratings are measured under board mounted and still air conditions. Symbol Definition Min. Max. VB High-Side Floating Supply Voltage -0.3 625 VS High-Side Floating Supply Offset Voltage VB - 25 VB + 0.3 VHO High-Side Floating Output Voltage VS - 0.3 VB + 0.3 VLO Low-Side Output Voltage -0.3 VCC + 0.3 VVCO VCO Input Voltage -0.3 6 VDIM DIM Input Voltage -0.3 VCC + 0.3 †† † ICC --- 20 -500 500 dVS/dt Supply Current Maximum allowable current at LO, HO and PFC due to external power transistor Miller effect. Allowable VS Pin Voltage Slew Rate -50 50 PD Maximum Power Dissipation @ TA ≤ +25ºC, 8-Pin DIP --- 1.0 PD Maximum Power Dissipation @ TA ≤ +25ºC, 8-Pin SOIC --- 0.625 RθJA Thermal Resistance, Junction to Ambient, 8-Pin DIP --- 85 RθJA Thermal Resistance, Junction to Ambient, 8-Pin SOIC --- 128 TJ Junction Temperature -55 150 TS Storage Temperature -55 150 TL Lead Temperature (Soldering, 10 seconds) --- 300 IOMAX Units V mA V/ns W ºC/W ºC † This IC contains a zener clamp structure between the chip VCC and COM which has a nominal breakdown voltage of 15.6V. This supply pin should not be driven by a DC, low impedance power source greater than the VCLAMP specified in the Electrical Characteristics section. †† This IC contains a zener clamp structure between the chip VCO and COM which has a nominal breakdown voltage of 7.25V. This pin should not be driven by a DC, low impedance power source greater than the VVCOMAX specified in the Electrical Characteristics section. www.irf.com © 2008 International Rectifier 5 IRS2530D(S) Recommended Operating Conditions For proper operation the device should be used within the recommended conditions. Symbol VBS Definition Min. Max. Units VCC - 0.7 VCLAMP V 600 V VCCUV+ + 0.1V VCLAMP V VCC High-Side Floating Supply Voltage Steady State High-Side Floating Supply Offset Voltage Supply Voltage ICC Supply Current --- 5 mA VVCO VCO Pin Voltage 0 6 V TJ Junction Temperature -40 125 ºC VS ††† -3.0 ††† Care should be taken to avoid output switching conditions where the VS node decreases below COM by more than 5V. www.irf.com © 2008 International Rectifier 6 IRS2530D(S) Electrical Characteristics VCC=VBS=14V, VS=0V, CVCC=CBS=0.1μF, CVCO=CDIM=10nF, CLO=CHO=1nF, and TA = 25°C unless otherwise specified. The output voltage and current (VO and IO) parameters are referenced to COM and are applicable to the respective HO and LO output leads. Symbol Definition Min Typ Max Units Test Conditions Low Voltage Supply Characteristics VCLAMP VCC Zener Clamp Voltage 14.6 15.6 16.6 VCCUV+ Rising VCC UVLO+ Threshold 11.5 12.5 13.5 VCCUV- Falling VCC UVLO- Threshold 9.5 10.5 11.5 VCC Undervoltage Lockout Hysteresis 1.5 2.0 3.0 IQCCUV Micropower Startup VCC Supply Current --- 250 --- µA VCC = 8V ICCDIM DIM Mode VCC Supply Current --- 4.5 --- mA MODE = DIM IQCCFLT Fault Mode VCC Supply Current VCO Pin Zener Clamp Voltage --- 375 --- µA MODE = FAULT --- 7.25 --- V MODE = DIM VBS Supply Current --- 2 3 mA MODE = DIM IQBSUV UVLO Mode VBS Quiescent Current --- --- 50 µA VBS = 7V VBSUV+ Rising VBS Supply Undervoltage Threshold Falling VBS Supply Undervoltage Threshold Offset Supply Leakage Current 8.0 9.0 10.0 7.0 8.0 9.0 --- --- 50 VCCUVHY VVCOMAX ICC = 10mA V Floating Supply Characteristics IBS VBSUVILK V μA VB = VS = 600V Ballast Control Characteristics fMIN Minimum Output Frequency 32.0 34.2 36.4 fMAX Maximum Output Frequency --- 115 --- Duty Cycle --- 50 --- % Output Deadtime (HO or LO) --- 2.0 --- µs MODE = ALL VCO Pin Charging Current --- 1 --- µA MODE = PH/IGN VLOSD+ LO Pin Shutdown Threshold --- 8.75 --- VLOSD- LO Pin Re-start Threshold --- 8.5 --- VZVSTH VS Non-ZVS Detection Threshold --- 4.5 --- VCO Fault Rising Threshold --- 4.0 --- Crest factor peak-to-average fault factor --- 5.5 --- d DT IVCO VVCOFLT+ CSCF www.irf.com kHz VCO = 6V VCO = 0V MODE = FAULT V MODE = FAULT MODE = DIM, LO = HIGH V MODE = PH/IGN N/A MODE = DIM VS offset = 0.5V © 2008 International Rectifier 7 IRS2530D(S) Electrical Characteristics VCC=VBS=14V, VS=0V, CVCC=CBS=0.1µF, CVCO=CDIM=10nF, CLO=CHO=1nF, and TA = 25°C unless otherwise specified. The output voltage and current (VO and IO) parameters are referenced to COM and are applicable to the respective HO and LO output leads. Symbol Definition Min Typ Max Units --- 0.0 --- V Test Conditions Dimming Control Characteristics VDIMREG DIM Regulation Threshold MODE = DIM Gate Driver Output Characteristics (HO and LO) VOH High-Level Output Voltage --- VCC --- IO = 0A VOL Low-Level Output Voltage --- COM --- IO = 0A --- IO = 0A, VCC ≤ VCCUV- VOL_UV --- UV-Mode Output Voltage COM tr Output Rise Time --- 120 220 tf Output Fall Time --- 50 80 tSD Shutdown Propagation Delay --- 350 --- IO+ Output source current --- 180 --- IO- Output sink current --- 260 --- ns mA Bootstrap FET Characteristics VB_ON VB when the bootstrap FET is on --- 13.3 --- IB_CAP VB source current when FET is on 30 55 --- IB_10V VB source current when FET is on 8 12 --- www.irf.com V mA CBS = 0.1µF VB = 10V © 2008 International Rectifier 8 IRS2530D(S) I/O Pin Equivalent Circuit Diagrams www.irf.com © 2008 International Rectifier 9 IRS2530D(S) Lead Definitions Pin # Symbol Description 1 VCC Logic and internal gate drive supply voltage 2 COM IC power and signal ground 3 DIM Dimming DC reference and AC lamp current feedback input 4 VCO Voltage-controlled oscillator (VCO) input 5 LO Half-bridge low-side gate driver output 6 VS High voltage floating supply return and half-bridge sensing input 7 HO High-side gate driver output 8 VB High-side gate driver floating supply Lead Assignments 1 COM 2 DIM 3 VCO 4 8 IRS2530D VCC www.irf.com VB 7 HO 6 VS 5 LO © 2008 International Rectifier 10 IRS2530D(S) State Diagram Power Off VCC > 0V UVLO Mode Half-Bridge Off VCC < 10.5V (VCCUV-) or LO > 8.75V (VLOSD+) (Lamp Removed) IQCCUV ≅ 250μA VCO = 0V HO Off LO Open Circuit VCC > 12.5V (VCCUV+) and LO < 8.5V (VLOSD-) (Lamp Inserted) VCC < 10.5V (VCCUV-) FAULT Mode Fault Latch Set Half-Bridge Off IQCCUV ≅ 250μA HO Off LO Open Circuit VCO > 4.0V (VVCOFLT+) (Lamp non-strike) PH/IGN Mode Half-Bridge Oscillating Freq ramps from fMAX to fMIN VCO Charging (1μA) non-ZVS Disabled Crest Factor Disabled Lamp Ignites CF > 5.5 (lamp removal) DIM Mode non-ZVS ZVS freq = freq + df ZVS OK Half-Bridge Oscillating @fDIM Dimming Loop Enabled non-ZVS Enabled Crest Factor Enabled www.irf.com © 2008 International Rectifier 11 IRS2530D(S) Application Information and Additional Details Information regarding the following topics is included as subsections within this section of the datasheet: • • • • • • • • UVLO Mode and IC Supply Circuitry Preheat/Ignition (PH/IGN) Mode Dim Mode Non Zero-Voltage Switching (ZVS) Protection Crest Factor Over-current Protection Fault Mode and Lamp Reset Component Selection PCB Layout Guidelines UVLO Mode and IC Supply Circuitry The Under-Voltage Lock-Out Mode (UVLO) is defined as the state the IC is in when VCC is below the turn-on threshold of the IC, VCCUV+ (12.5 V, typical), and LO is above the shutdown threshold, VLOSD+ (8.75 V, typical). The UVLO circuit is designed to maintain an ultra-low supply current IQCCUV (