P50 6 W Ballast Evaluation Board User's Manual EVAL BOARD USER S MANUAL Introduction This document describes how the P50 driver can be implemented in a ballast application. The scope of this evaluation board user s manual is to highlight the P50 driver and not to explain or detailed how to build electronic ballast. The P50 is a high voltage power MOSFET driver providing two outputs for direct drive of N-channel power MOSFETs arranged in a half-bridge configuration with only one input. It uses the bootstrap technique to insure a proper drive of the High-side power switch. The driver works with one input to accommodate half-bridge topology with a fixed dead time of 50 ns. Evaluation Board Specification Input Range : 85 Vac 5 Vac OR 8 Vac 65 Vac Ballast Output Power : 6 W (type PL L 6W) Pre-heating Current : 95 ma Pre-heating Time : second Nominal Current : ma Detailed Operation The lamp ballast is powered via a half bridge configuration. The power MOSFETs are driven with the P50 driver. The driver is supplied by the V CC rail, and the high side driver is supplied by the bootstrap diode: when the low side power MOSFET (Q) is switched ON, the BRIDGE pin is pulled down to the ground, thus the capacitor connected between BRIDGE pin and VBOOT pin is refuelled via the diode D and the resistor R5 connected to V CC. When Q is switched OFF the bootstrap capacitor C6 supplies the high side driver with a voltage equal to V CC level minus the D forward voltage diode. Given the P50 architecture, the driver copies the input signal to the high side driver, then it generates a fixed dead time (50 ns) before toggling the low side driver when the input pin level changes. Figure. P50 Evaluation Board WARNING: BEFORE PLUGGING IN THE EVALUATION BOARD, MAKE SURE THE JUMPER IS IN THE CORRECT POSITION: IF J IS USED, THEN V IN MUST BE LOWER THAN 5 Vac. Semiconductor Components Industries, LLC, 0 November, 0 Rev. 0 Publication Order Number: EVBUM58/D
Figure. Dead Time Between the High and Low-Side Driver IN_HI DRV_HI IN_LO Figure. Input Output Timing Diagram DRV_LO Time ( ms/div) Voltage (00 V /div) current (0.5 V /div) Power (50 W/div) average power = W Figure. Signals
Figure 5. P50 Evaluation Board Schematic R C C R6 68k R 7k R 7k R0 k R5 k R OR R TRIG CVOLT DIS THR Q 5 6 7 8 C 0nF U TLC555C D 5V.W IN SD C7 00 F C 0 F C 7 F 00V C 7 F 00V F T500mA CON J C0 0pF C6 R 8k W R 8k W R k VBOOT DRV_HI Bridge DRV_IO U P50 C 7 F C5 00nF R5 0R D N96 C6 00nF R6 0R R8 0k PT Q IRF80LC Q IRF80LC C5 6.8nF R9 0k R7 0R R 90k D6 N96 C 0pF/00V D5 N96 8 7 6 5 L.mH B BALLAST kv C8 0nF 00V C7 0nF 00V Q BC57B C9 0pF J US Jumper
Figure 6. PCB Printout: Top and Bottom View
Table. BILL OF MATERIAL FOR THE P50 EVALUATION BOARD* Designator Qty. Description Value Tolerance Footprint Manufacturer B Connector / 0% Rad5.08 mm C,C Electrolytic Manufacturer Part Number Substitution Allowed Weidmuller PM5.08//90 Yes 7 F/00 V 0. Radial Panasonic ECAGM70 Yes C 0 nf/00 V 0% Radial Murata RPER7A0KMB05A Yes C, C Radial Yes C 0 pf/,000 V 0% Radial Panasonic PICECKAAKBP Yes C5 6.8 nf/,600 V 5% Radial BC Comp. 75 068 Yes C6 Radial Yes C7 Electrolytic C Electrolytic C Electrolytic 00 F/6 V 0% Radial Panasonic ECACM0 Yes 0 F/6 V 0% Radial BC Comp. 555 Yes.7 F/6 V 0% Radial Nippon Chemi-con SMEVB.7UF6V Yes C5, C6 00 nf/50 V 0% Radial Murata RPER7H0KMA05U Yes C7, C8 0 nf/00 V 0% Radial Vishay MKT805 Yes C9, C0 0 pf/00 V 5% Radial Murata RPE5CAJMZ05A Yes D Zener Diode 5 V/. W 5% Axial Vishay BZX85C5 Yes D, D5, D6 Rectifier Diode A/00 V 0% Axial ON Semiconductor N96G Yes D Zener Diode 5. V/. W 5% Axial Vishay BZX85C5V Yes F Fuse 500 ma/50 V 0% Radial Schurter 00 66 Yes J Connector / 0% Rad5.08 mm Weidmuller PM5.08//90 Yes J Resistor 0 /0.5 W 0% Axial Multicomp MCF 0.5W 0R Yes L Inductor. mh Yogt 5 0 No PT Diode Bridge 600 V/ A 0% DIL General Semiconductor Q, Q Power MOSFET N-channel 8 A/500 V 0% TO0 International Rectifier DF06M IRF80LC Q NPN Transistor 00 ma/5 V 0% TO9 ON Semiconductor BC57B Yes R, R5 Resistor k /0. W 5% Axial Neohm CFR5JK Yes R0 Resistor k /0. W 5% Axial Neohm CFR5JK Yes R Resistor 7 k /0. W 0.05 Axial Neohm CFR5J7K Yes R Resistor 7 k /0. W 5% Axial Neohm CFR5J7K Yes R Resistor 0 /0.5 W 5% Axial Multicomp MCF 0.5W 0R Yes R Resistor 90 k /0. W 5% Axial Neohm CFR5J90K Yes R6 Resistor 68 k /0. W 5% Axial Neohm CFR5J68K Yes R Resistor Axial Yes R, R Resistor 8 k / W 5% Axial BC Comp. 958 Yes R5, R6, R7 Resistor 0 /0. W 5% Axial Neohm CFR5J0R Yes R8, R9 Resistor 0 k /0. W 5% Axial Neohm CFR5J0K Yes U CMOS IC Analog/Timer 0% DIP8 Texas Instruments TLC555CP No U P50 P50 DIP8 ON Semiconductor P50 No *All devices are Pb-free. Yes Yes 5
TEST PROCEDURE A A Vac V V R Load 00 J Jumper Figure 7. Test Setup Connection Table. REQUIRED EQUIPMENT AC Power Source can be able to Deliver 0 V rms or 0 V rms Two Voltmeters Two Ampere Meters Resistive Load: 00 /50 W One P50 Evaluation Board Test Procedure. First of all check if you need or not the jumper # (J on the board close the diode bridge). This jumper must be removed in case of European mains (0 Vac input voltage) and have to placed in case of US mains (0 Vac). This jumper is used to build a voltage doublers just after the bridge diode in case of US mains input voltage range.. Connect the test setup as shown in Figure 7: AC Source Voltmeter and Ampere Meter on the Load Load on the Output. Apply 0 Vac for European mains or 0 Vac for US mains on the input connector.. Check I Load and V Load with the appropriate value in the Table. 5. If you get the correct output and input voltage, you can connect a 6 W fluorescent tube on the output (see Figure 8). Table. TEST RESULTS Input Mains J V IN (V rms ) I IN (A rms ) V Load (V rms ) I Load (A rms ) European Removed 0 V 78 ma 0 V 70 ma US Yes Max Input Voltage: V rms 0 V 5 ma 6 V 0 ma Input Connection Output Connection Vac A V 6 W Figure 8. Ballast Connection ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC s product/patent coverage may be accessed at www.onsemi.com/site/pdf/patent Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Typical parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including Typicals must be validated for each customer application by customer s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 56, Denver, Colorado 807 USA Phone: 0 675 75 or 800 860 Toll Free USA/Canada Fax: 0 675 76 or 800 867 Toll Free USA/Canada Email: orderlit@onsemi.com N. American Technical Support: 800 8 9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 790 90 Japan Customer Focus Center Phone: 8 587 050 6 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative EVBUM58/D