IRPLLNR4 International Rectifier, IRPLLNR4 Datasheet
IRPLLNR4
Specifications of IRPLLNR4
Related parts for IRPLLNR4
IRPLLNR4 Summary of contents
Page 1
... Reference Design #0602 IRPLLNR4(rev. Universal Input Linear Fluorescent Ballast Fetures & Description ....................................................................... 2 Characteristics ................................................................................... 3 Overview ............................................................................................. 3 Schematic Diagram ........................................................................... 4 Bill of Materials ................................................................................... 5 Inductor Specs .................................................................................. 6-7 Demo Board Overview ...................................................................... 8 Preheat Mode ..................................................................................... 9 Ignition Ramp Mode .......................................................................... 11 Run Mode ........................................................................................... 13 Normal Power-Down ......................................................................... 14 Lamp Rwmoval & auto-restart .......................................................... 15 Fault Mode .......................................................................................... 15 Current Mode Configuration ............................................................. 19 Design Procedure to adapt the design to different lamp types ...
Page 2
... The IRPLLNR4 is a Universal Input Linear Fluorescent Ballast Features Drives 1 x 35W TL5 Lamp ! Input Voltage: 80-260Vac ! High Power Factor/Low THD ! High Frequency Operation ! Lamp Filament Preheating ! Lamp Fault Protection with Auto-Restart ! Low AC Line Protection ! End of Lamp Life Shutdown ! IR2166 HVIC Ballast Controller ...
Page 3
Electrical Characteristics Parameter Lamp Type Input Power Lamp running voltage Run Mode Frequency Preheat Mode Frequency Preheat Time Lamp Preheat Voltage Ignition Voltage Input AC Voltage Range Power Factor Total Harmonic Distortion Fault Protection Characteristics Fault Line voltage low Upper ...
Page 4
Schematics Diagram, IR2166 Single Lamp, Voltage Mode Heating www.irf.com RD-0602 4 ...
Page 5
Bill Of Materials Lamp type: TL5/35W, Line Input Voltage: 80-260 VAC Note: Different lamp types require different frequency programming components. Item # anufacturer International R ectifier oederstein ale ...
Page 6
Inductor Specs CORE SIZE BOBBIN CORE MATERIAL NOMINAL INDUCTANCE MAXIMUM CURRENT MAXIMUM CORE TEMPERATURE WINDING START PIN FINISH PIN TURNS WIRE DIAMETER (mm) MAIN ZX ELECTRICAL LAYOUT TEST (TEST FREQUENCY = 50kHz) MAIN WINDING INDUCTANCE MIN 0.9 MAIN WINDING RESISTANCE ...
Page 7
CORE SIZE BOBBIN CORE MATERIAL NOMINAL INDUCTANCE MAXIMUM CURRENT MAXIMUM CORE TEMPERATURE WINDING START PIN FINISH PIN TURNS WIRE DIAMETER (mm) MAIN CATHODE (1) CATHODE (2) ELECTRICAL LAYOUT TEST (TEST FREQUENCY = 50kHz) MAIN WINDING INDUCTANCE MIN 3.9 MAIN WINDING ...
Page 8
Demo board Overview This demo-board is designed for single TL5/35W Lamp, voltage mode heating (JV1 and JV2 mounted, JC1 and JC2 not mounted). TL5 lamps are becoming more popular due to their lower profile and higher lumen/ watt output. These ...
Page 9
UVLO and also its micro-power mode. The micro-power mode of the IR2166 allows the use of a large value, low wattage startup resistor (RSUPPLY). When the voltage on the IR2166 ...
Page 10
The ballast control section oscillator of the IR2166 is similar to oscillators found in many popular PWM voltage regulator ICs and consists of a timing capacitor and resistor connected to ground. Resistors RT and RPH program a current which determines ...
Page 11
I Figure 3 shows a plot of the half-bridge oscillation frequency as a function of time for all of the normal modes of operation: Preheat mode, Ignition Ramp mode and Run mode. f osc f Preheat f Run f Ignition ...
Page 12
LC load circuit until the lamp ignition voltage is exceeded and the lamp ignites. The maximum ignition voltage that can be generated is determined from the value of RCS, but in any case the ignition frequency ...
Page 13
Run Mode During the Run mode the frequency is shifted to the run frequency. The run frequency is determined only by RT. The 1-3V window comparator in the SD pin is enabled at the beginning of the Run mode. The ...
Page 14
Figure 5 shows the voltage appearing across the lamp during Startup, Preheat, Ignition Ramp and Run modes. Figure 5: Preheat, Ignition Ramp and Run Voltage in the lamp Normal Power-Down A normal power down occurs when the AC line voltage ...
Page 15
Lamp Removal and Auto-restart Resistors RPU, RSD and capacitor CSD1 form a divider/filter network which is used to detect an open lower lamp filament and/or lamp replacement. Under normal conditions, the voltage across CSD1 is close to zero. However, if ...
Page 16
During the Preheat mode the voltage across resistor RCS is not measured. However, at the end of Preheat mode (the beginning of the Ignition Ramp mode) the hard-switching and over-current detec- tion are enabled. During RUN mode any ...
Page 17
Figure 9: Hard-switching condition (upper filament open): Upper trace: voltage across RCS, Middle trace: LO pin voltage, Lower trace: HO-VS pin voltage The components REOL1, REOL2, REOL3, REOL4, CEOL are used for end of life protection. The end-of-life window comparator ...
Page 18
The value of REOL4 is changed so that the lamp voltage during normal running produces a signal with 1.5 Vppk at the point (A) were the capacitor CEOL connects it to the SD pin. For a T5/35W lamp 1.2Kohm at ...
Page 19
Current mode configuration The same PCB can be config- ured for current mode heating needed to remove the Jumpers JV1 and JV2 and to introduce the Jumpers JC1 and JC2. It could be also usefull to add a ...
Page 20
Design Procedure to adapt the design to different lamp types To adapt the design to different types of lamps you need to adjust the values of: LPFC, MPFC, MLO, MHO, CPH, RT, RPH, RCS, CT, REOL4, CRES and LRES. Do ...