FAN7387V Ballast Control IC for Compact Fluorescent Lamp Features Description The FAN7387V, developed using Fairchild’s unique highvoltage process and system-in-package (SiP) concept, is a ballast-control integrated circuit (IC) for a compact fluorescent lamp (CFL). The FAN7387V has a simple oscillating circuit using an external resistor and capacitor so the frequency variation is stable across the temperature range. FAN7387V has a external pin for dead time control and shutdown. By using this resistor, a designer can choose the optimum dead time to reduce the power loss on internal switching devices (MOSFETs). Integrated Half-Bridge MOSFET Internal Clock Using RCT Enable External Sync Function Using RCT Dead-Time Control by using Resistor Shut Down (Disable Mode) Internal Shunt Regulator UVLO Function High and Low Side Applications Compact Fluorescent Lamp Ballast 8-DIP Ordering Information Part Number Operating Temperature Package Packing Method FAN7387VN -40 to +125°C 8-Lead, Dual-In-line Package (DIP) Tube © 2008 Fairchild Semiconductor Corporation FAN7387V • 1.0.0 www.fairchildsemi.com FAN7387V — Ballast Control IC for Compact Fluorescent Lamp February 2012 Figure 1. Typical Application Circuit for Fluorescent Lamp (Rapid Starting Method without PTC) Figure 2. Typical Application Circuit for Fluorescent Lamp (Rapid Starting Method with PTC) © 2008 Fairchild Semiconductor Corporation FAN7387V • 1.0.0 www.fairchildsemi.com 2 FAN7387V — Ballast Control IC for Compact Fluorescent Lamp Typical Applications Diagrams FAN7387V — Ballast Control IC for Compact Fluorescent Lamp Internal Block Diagram HIGH- SIDE DRIVER VB UVLO UVLO Noise Canceller S Q R Q S Q R D Q Internal CLK SET ( Frequency Divider ) Q RESET External Sync HIN IN VDD Logic Detection Level DT LIN DELAY SHUTDOWN Always LIN First LOW- SIDE GATE DRIVER HIN LIN Figure 3. Functional Block Diagram Pin Configuration OUT PGND GND DT/SD 8 7 6 5 FAN7387V YWW ( YWW : Work Week Code) 1 2 VDC VB Figure 4. 3 4 VDD RCT Pin Configurations (Top View) Pin Definitions Pin # Name Description 1 VDC 2 VB 3 VDD Supply Voltage 4 RCT Oscillator Frequency Set Resistor and Capacitor 5 DT/SD High-voltage Supply High-Side Floating Supply Dead Time Set Resistor 6 GND Signal Ground 7 PGND Power Ground 8 OUT High-Side Floating Supply Return © 2008 Fairchild Semiconductor Corporation FAN7387V • 1.0.0 www.fairchildsemi.com 3 Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. TA=25°C unless otherwise specified. Symbol VB Parameter Min. Typ. Max. Unit High-Side Floating Supply -0.3 465.0 V VOUT High-Side Floating Supply Return -0.3 440.0 V VRCT RCT Pins Input Voltage ICL dVOUT/dt TA TSTG VDD Clamping Current Level(1) V 25 Allowable Offset Voltage Slew Rate mA 50 V/ns Operating Temperature Range -40 +125 °C Storage Temperature Range -65 +150 °C PD Power Dissipation 2.1 W ΘJA Thermal Resistance (Junction-to-Air) 70 °C/W Note: 1. Do not supply a low-impedance voltage source to the internal clamping Zener diode between the GND and the VDD pin of this device. © 2008 Fairchild Semiconductor Corporation FAN7387V • 1.0.0 www.fairchildsemi.com 4 FAN7387V — Ballast Control IC for Compact Fluorescent Lamp Absolute Maximum Ratings VBIAS (VDD, VB -VOUT)=14.0V, TA=25°C, unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. Unit High Voltage Supply Section VDC High Voltage Supply Voltage 440 V Low-Side Supply Characteristics (VDD) VDDUV+ VDD UVLO Positive-Going Threshold VDD Increasing 9 11 13 VDDUV- VDD Decreasing 7.8 8.8 9.8 VDD UVLO Negative-Going Threshold VDDUHY VDD-Side UVLO Hysteresis 2.2 VCL Supply Camping Voltage IDD=10mA 14.4 IST Startup Supply Current VDD=9V 60 90 IQDD Low-Side Quiescent Supply Current RDT=100kΩ 230 380 IDD Dynamic Operating Supply Current 20kHz, CL=1nF 0.6 V 15.4 µA mA High-Side Supply Characteristics (VB-VOUT) VHSUV+ High-Side UVLO Positive-Going Threshold VB-VOUT Increasing 8 9 10 VHSUV- High-Side UVLO Negative-Going Threshold VB-VOUT Decreasing 7.5 8.5 9.5 VHSUHY VBS Supply UVLO Hysteresis IQHS High-Side Quiescent Supply Current IPBS High-Side Dynamic Operating Supply Current V 0.5 50 90 130 180 18 20 22 47.5 49.0 20kHz, CL=1nF µA Oscillator Characteristics fosc D VRCT+ VRCT- Oscillation Frequency RT=50kΩ, CT=330pF Duty Cycle Running Mode Upper Threshold Voltage of RCT Running Mode % VDD Lower Threshold Voltage of RCT Running Mode VDD/4 VIH Logic “1” Input Voltage of RCT Running Mode 3/4 VDD VIL Logic “0” Input Voltage of RCT Running Mode tD Dead Time RDT=100kΩ 440 540 640 Minimum Dead Time VDT/SD=VDD 280 400 520 tDMIN kHz V 3/5 VDD ns Protection Characteristics VSD+ Shutdown “1” Input Voltage VSD- Shutdown “0” Input Voltage ISD Shutdown Current tSD Shutdown Propagation Delay 2.5 VSD/DT=0 After Run Mode 1 350 180 V µA Ns Internal MOSFET Section ILKMOS Internal MOSFET Leakage Current VDS=400V RON Static Drain-Source On-Resistance VGS=10V, ID=190mA 4.6 50 µA 6.0 Ω IS Maximum Continuous Drain-Source Diode Forward Current 0.38 A ISM Maximum Pulsed Continuous Drain-Source Diode Forward Current 3.04 A VSD Drain-Source Diode Forward Voltage © 2008 Fairchild Semiconductor Corporation FAN7387V • 1.0.0 VGS=0V, IS=0.38A 1.2 V www.fairchildsemi.com 5 FAN7387V — Ballast Control IC for Compact Fluorescent Lamp Electrical Characteristics 12.5 200 12.0 VDDUV+ [V] IST [μA] 150 100 11.5 11.0 10.5 50 10.0 0 -40 -20 0 20 40 60 80 100 9.5 -40 120 -20 0 Figure 5. Startup Current vs. Temperature 60 80 100 120 10.0 9.6 10.0 9.2 9.5 VBSUV+ [V] VDDUV- [V] 40 Figure 6. VDD UVLO+ vs. Temperature 10.5 9.0 8.8 8.4 8.5 8.0 8.0 7.6 7.5 -40 20 Temperature [°C] Temperature [°C] 7.2 -20 0 20 40 60 80 100 120 -40 -20 0 Temperature [°C] 20 40 60 80 100 120 Temperature [°C] Figure 7. VDD UVLO- vs. Temperature Figure 8. VB-VOUT UVLO+ vs. Temperature 16.0 10.0 9.6 15.8 VCL [V] VBSUV- [V] 9.2 8.8 8.4 15.6 15.4 15.2 8.0 7.6 15.0 7.2 -40 -20 0 20 40 60 80 100 14.8 -40 120 Temperature [°C] 0 20 40 60 80 100 120 Temperature [°C] Figure 9. VB-VOUT UVLO- vs. Temperature © 2008 Fairchild Semiconductor Corporation FAN7387V • 1.0.0 -20 Figure 10. VCL vs. Temperature www.fairchildsemi.com 6 FAN7387V — Ballast Control IC for Compact Fluorescent Lamp Typical Performance Characteristics FAN7387V — Ballast Control IC for Compact Fluorescent Lamp 2.5 500 2.0 400 IQDD [μA] IPDD [mA] Typical Performance Characteristics (Continued) 1.5 1.0 0.5 0.0 -40 300 200 100 -20 0 20 40 60 80 100 0 -40 120 Temperature [°C] 20 40 60 80 100 120 Figure 12. IQDD vs. Temperature 3.0 500 2.5 VSD+ [V] 400 ISD [μA] 0 Temperature [°C] Figure 11. IPDD vs. Temperature 300 200 2.0 1.5 1.0 0.5 100 0 -40 -20 -20 0 20 40 60 80 100 0.0 -40 120 -20 0 20 40 60 80 100 120 Temperature [°C] Temperature [°C] Figure 13. ISD vs. Temperature Figure 14. VSD+ vs. Temperature 23 3.0 22 fOSC1[kHz] VSD- [V] 2.5 2.0 21 20 19 1.5 18 1.0 -40 -20 0 20 40 60 80 100 17 -40 120 Figure 15. VSD- vs. Temperature © 2008 Fairchild Semiconductor Corporation FAN7387V • 1.0.0 -20 0 20 40 60 80 100 120 Temperature [°C] Temperature [°C] Figure 16. Operating Frequency vs. Temperature www.fairchildsemi.com 7 50 500 475 40 tDMIN_mismatch[ns] tDMIN[ns] 450 425 400 375 30 20 350 10 325 300 -40 -20 0 20 40 60 80 100 0 -40 120 -20 0 Temperature [°C] 40 60 80 100 120 Temperature [°C] Figure 17. tDMIN vs. Temperature Figure 18. Dead-Time Mismatch vs. Temperature 52 Duty at Low-Side Output [%] 52 Duty at High-Side Output [%] 20 51 50 49 51 50 49 48 -40 -20 0 20 40 60 80 100 48 -40 120 Temperature [°C] -20 0 20 40 60 80 100 120 Temperature [°C] Figure 19. High-Side Duty Ratio vs. Temperature Figure 20. Low-Side Duty Ratio vs. Temperature Figure 21. Frequency vs. RT Figure 22. On-Region Characteristics © 2008 Fairchild Semiconductor Corporation FAN7387V • 1.0.0 www.fairchildsemi.com 8 FAN7387V — Ballast Control IC for Compact Fluorescent Lamp Typical Performance Characteristics (Continued) Figure 23. On-Resistance Variation vs. Drain Current and Gate Voltage Figure 24. Body Diode Forward Voltage Variation vs. Source Current and Temperature Figure 25. Breakdown Voltage Variation vs. Temperature Figure 26. On-Resistance Variation vs. Temperature Figure 27. Maximum Safe Operating Area Figure 28. Maximum Drain-Current vs. Case Temperature © 2008 Fairchild Semiconductor Corporation FAN7387V • 1.0.0 www.fairchildsemi.com 9 FAN7387V — Ballast Control IC for Compact Fluorescent Lamp Typical Performance Characteristics (Continued) 1. Under-Voltage Lockout (UVLO) Function FAN7387V has a UVLO circuit for a low-side and highside block. When VDD reaches to the VDDUV+, the UVLO circuit is released and the FAN7387V operates normally. At UVLO condition, the FAN7387V has a low supply current of less than 130µA. Once UVLO is released, FAN7387V operates normally until VDD goes below VDDUV-, the UVLO hysteresis. FAN7387V also has a high-side gate driver. The supply for the high-side driver is applied between VB and VOUT. To prevent malfunction at low supply voltage between VB and VOUT, FAN7387V provides an additional UVLO circuit. If VB-VOUT is under VHSUV+, the driver holds LOW state to turn off the highside switch. Once the voltage of VB-VOUT is higher than VHSUV+, after VB-VOUT exceeds VHSUV-, the operation of driver resumes. RCT t LO Tfix Tfix HO DT DT T Figure 30. Typical Waveforms of RCT and Internal Signal (LO, HO) of IC 2. Oscillator The running frequency is determined by an external timing resistor (RT) and timing capacitor (CT). The charge time of capacitor CT from 1/4 VDD to VDD determines the running frequency of gate driver output (VOUT). t = 1.38 • R T • C T (2) The running frequency of IC is determined by 1/t and is approximately given as: frunning = 1 1 = t 2(t + t fix ) (3) where t is the discharging time of the RCT voltage and tfix is constant value about 450ns of IC. 3. Programming Dead Time Control / Shutdown A multi-function pin controls dead time using an external resistor (RDT) and protects abnormal condition using an external switch. This pin should be connected to an external capacitor to maintain stable operation. Figure 29. Typical Connection Method Figure 30 shows the typical waveforms of RCT and internal signals (LO and HO) of IC. From the circuit analysis, the discharging time of RCT, t, is given by: −t VRCT ( t ) = VDD × In R T • CT If the voltage of DT/SD is decreased to under 1V by an external switch, such as the TR or MOSFET, the FAN7387V enters shutdown mode. In this mode, the FAN7387V doesn’t have any output signal. (1) From Equation 1, it is possible to calculate the discharging time, t, from VDD to one quarter (1/4) of VDD by substituting VRCT(t) with 1/4 VDD. +14V RCT 4 2 VDD 3 1 DT/SD 5 8 GND 6 7 VB VDC RDT OUT Cbp External Signal PGND Rev. 1.0 Figure 31. External Shutdown Circuit © 2008 Fairchild Semiconductor Corporation FAN7387V • 1.0.0 www.fairchildsemi.com 10 FAN7387V — Ballast Control IC for Compact Fluorescent Lamp Application Information FAN7387V — Ballast Control IC for Compact Fluorescent Lamp Physical Dimensions 9.83 9.00 6.67 6.096 8.255 7.61 3.683 3.20 5.08 MAX 7.62 0.33 MIN 3.60 3.00 (0.56) 2.54 0.356 0.20 0.56 0.355 9.957 7.87 1.65 1.27 7.62 NOTES: UNLESS OTHERWISE SPECIFIED A) THIS PACKAGE CONFORMS TO JEDEC MS-001 VARIATION BA B) ALL DIMENSIONS ARE IN MILLIMETERS. C) DIMENSIONS ARE EXCLUSIVE OF BURRS, MOLD FLASH, AND TIE BAR EXTRUSIONS. D) DIMENSIONS AND TOLERANCES PER ASME Y14.5M-1994 E) DRAWING FILENAME AND REVSION: MKT-N08FREV2. Figure 32. 8-Lead Dual Inline Package (DIP) Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2008 Fairchild Semiconductor Corporation FAN7387V • 1.0.0 www.fairchildsemi.com 11 FAN7387V — Ballast Control IC for Compact Fluorescent Lamp © 2008 Fairchild Semiconductor Corporation FAN7387V • 1.0.0 www.fairchildsemi.com 12