Smart Ballast Control IC

Datash eet Version 1.2, F ebruary 2006 ICB1FL02G Smart Ballast Control IC for Fluorescent Lamp Ballasts www.DataSheet4U.com Power Management & Supply N e v e r s t o p t h i n k i n g . ICB1FL02G Revision History: Previous Version: Page 19 25 26 2006-02-08 2005-06-06 (ICB1FL01G) Datasheet Subjects (major changes since last revision) Min Duration of EOL1 Preheating Time updated EOL Current Threshold, AC & DC www.DataSheet4U.com Edition 2006-02-08 Published by Infineon Technologies AG 81726 München, Germany © Infineon Technologies AG 2006. All Rights Reserved. Attention please! The information given in this data sheet shall in no event be regarded as a guarantee of conditions or characteristics (“Beschaffenheitsgarantie”). With respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation warranties of non-infringement of intellectual property rights of any third party. Information For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office (www.infineon.com). Warnings Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system, or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered. ICB1FL02G Smart Ballast Control IC for Fluorescent Lamp Ballasts Product Highlights • Lowest Count of external Components • HV-Driver with coreless Transformer Technology • Improved Reliability and minimized Spread due to digital and optimized analog control functions PG-DSO-18-1 Features PFC • • • • Discontinuous Conduction Mode PFC Integrated Compensation of PFC Control Loop Adjustable PFC Current Limitation Adjustable PFC Bus Voltage Description The Smart Ballast IC is designed to control a Fluorescent Lamp Ballast including a Discontinuous Conduction Mode Power Factor Correction (PFC), a lamp Inverter Control and a High Voltage Level Shift Half-Bridge Driver. Features Lamp Ballast Inverter The application requires a minimum of external • Supports Restart after Lamp Removal and End-of- components. There are integrated low pass filters and an internal compensation for the PFC voltage loop control. Life Detection in Multi-Lamp Topologies Preheating time is adjustable by a single resistor only in • End-of-Life (EOL) detected by adjustable +/the range between 0 and 2000ms. In the same way the Thresholds of sensed lamp voltage • Rectifier Effect detected by ratio of +/- Amplitude of preheating frequency and run frequency are set by resistors only. The control concept covers requirements Lamp Voltage • Detection of different capacitive Mode Operations for T5 lamp ballasts such as detection of end-of-life and www.DataSheet4U.com detection of capacitive mode operation and other • Adjustable Inverter Overcurrent Shutdown • Self-adaption of Ignition Time from 40ms to 235ms protection measures even in multilamp topologies. • Parameters adjustable by Resistors only ICB1FL02G is easy to use and easy to design and • Pb-free lead plating; RoHS compliant therefore a basis for a cost effective solution for fluorescent lamp ballasts. LVS2 90 ... 270 V AC IC B 1 F L 02 G RF R U N RF P H PFCGD PFCVS PFCCS GN D VCC LVS1 PFCZCD HSGD HSVCC HSGND LSGD LSCS RT P H RE S Type ICB1FL02G Package PG-DSO-18-1 Datasheet Version 1.2 3 February 2006 ICB1FL02G Table of Contents 1 1.1 1.2 2 3 3.1 3.2 3.3 3.4 3.5 3.6 4 5 6 6.1 6.2 6.3 6.3.1 6.3.2 6.3.2.1 6.3.2.2 6.3.2.3 6.3.2.4 6.3.2.5 6.3.3 6.3.3.1 6.3.3.2 6.3.3.3 6.3.3.4 6.3.3.5 6.3.3.6 7 7.1 7.2 7.3 8 Page Pin Configuration and Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Pin Configuration PG-DSO-18-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Blockdiagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Typical operating levels during start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 PFC Preconverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Typical operating levels during start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Detection of End-of-Life and Rectifier Effect . . . . . . . . . . . . . . . . . . . . . . . .14 Detection of capacitive mode operating conditions . . . . . . . . . . . . . . . . . . .15 Interruption of Operation and Restart after Lamp Removal . . . . . . . . . . . . .16 State Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 Protection Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Operating Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 www.DataSheet4U.com Power Supply Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 PFC Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 PFC Current Sense (PFCCS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 PFC Zero Current Detector (PFCZCD) . . . . . . . . . . . . . . . . . . . . . . . .23 PFC Bus Voltage Sense (PFCVS) . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 PFC PWM Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 PFC Gate Drive (PFCGD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Inverter Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 Inverter Control (RFRUN, RFPH, RTPH) . . . . . . . . . . . . . . . . . . . . . .25 Inverter Low Side Current Sense (LSCS) . . . . . . . . . . . . . . . . . . . . . .25 Restart after Lamp Removal (RES) . . . . . . . . . . . . . . . . . . . . . . . . . . .26 Lamp Voltage Sense (LVS1, LVS2) . . . . . . . . . . . . . . . . . . . . . . . . . .26 Inverter Low Side Gate Drive (LSGD) . . . . . . . . . . . . . . . . . . . . . . . . .27 Inverter High Side Gate Drive (HSGD) . . . . . . . . . . . . . . . . . . . . . . . .28 Application Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29 Operating Behaviour of a Ballast for a single Fluorescent Lamp . . . . . . . . .29 Design Equations of a Ballast Application . . . . . . . . . . . . . . . . . . . . . . . . . .30 Multilamp Ballast Topologies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35 Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36 Datasheet Version 1.2 4 February 2006 ICB1FL02G Pin Configuration and Description 1 1.1 Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Pin Configuration and Description Pin Configuration PG-DSO-18-1 Symbol LSCS LSGD VCC GND PFCGD PFCCS PFCVS RFRUN RFPH RTPH RES LVS1 LVS2 n.e. n.e. HSGND HSVCC HSGD HSGND Function Low side current sense (inverter) Low side gate drive (inverter) Supply voltage Controller ground PFC gate drive PFC current sense PFC voltage sense Set R for run frequency Set R for preheating frequency Set R for preheating time Restart after lamp removal Lamp voltage sense 1 Lamp voltage sense 2 Not existing Not existing High side ground High side supply voltage High side gate drive High side ground 1.2 Pin Description PFCZCD PFC zero current detector LSCS (Low side current sense, Pin 1) This pin is directly connected to the shunt resistor which is located between the Source terminal of the low-side MOSFET of the inverter and ground. Internal clamping structures and filtering measures allow for sensing the Source current of the low-side inverter MOSFET without additional filter components. There is a first threshold of 0,8V, which provides a couple of increasing steps of frequency during ignition mode, if exceeded by the sensed current signal for a time longer than 250ns. If the sensed current signal exceeds a second threshold of 1,6V for longer than 400ns during all operating modes, a latched shut down of the IC will be the result. LSGD (Low side gate drive, Pin 2) The Gate of the low-side MOSFET in a half-bridge inverter topology is controlled by this pin. There is an active L-level during UVLO (undervoltage lockout) and a limitation of the max. H-level at 11V during normal operation. Turning on the MOSFET softly (with reduced diDRAIN/dt), the Gate drive voltage rises within 220ns www.DataSheet4U.com from L-level to H-level. The fall time of the Gate drive voltage is less than 50ns in order to turn off quickly. This measure produces different switching speeds during turn-on and turn-off as it is usually achieved with a diode in parallel to a resis