iml88-0v C / 8W T Tube EVM - pplication Notes. IC Description The iml88 is a Three Terminal Current Controller (TTCC) for regulating the current flowi

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1 iml88-0v C / 8W T Tube EVM - pplication Notes iml88 0V C 8W T Tube EVM pplication Notes Table of Content. IC Description.... Features.... Package and Pin Diagrams.... pplication Circuit.... PCB Layout and Photograph.... Schematic of PCB.... Bill of Materials Performance Data and Typical Characteristic Test Result Power Factor vs. V C THD vs. V C Input Voltage and Input Current Surge Performance EMI Performance IML Inc. ll rights reserved. Rev. 0. Mar. 0

2 iml88-0v C / 8W T Tube EVM - pplication Notes. IC Description The iml88 is a Three Terminal Current Controller (TTCC) for regulating the current flowing through an LED string. The application of the iml88 is configured in parallel with an LED string. The iml88 can work as voltage controlled current source, current regulator, or cut-off. It is suitable for the applications adopting periodical C voltage source. The PCB layout is also very flexible to meet various shape requirements. It is especially suitable for replacing incandescent light bulb and linear type fluorescent lamp.. Features System Chip pplications ll solid state components No electrolytic capacitor needed Compact size High Power Factor and Low Total Harmonic Distortion Performance High efficiency Flexible PCB layout style Wide range of LED forward voltage selection 88V input sustaining voltage. V dropout voltage for up to 0m regulating current. Chip-on-board process available. C LED lighting engine. LED light bulb. LED light tube.. Package and Pin Diagrams DFN mm mm SOT-89-L 0 IML Inc. ll rights reserved. Rev. 0. Mar. 0

3 iml88-0v C / 8W T Tube EVM - pplication Notes. pplication Circuit (Balanced Utilization Structure) Fuse V C MOV D BD R Ω 0 LED V LED pcs U iml88- DJ D SOD- 0./80V R=0Ω 00 Remark:. Balanced Utilization Structure: Totally pcs of chips are used for Balanced Utilization Structure. ll of the LED can light up even the V C is low, so it can provide good performance in brightness uniformity.. R/R8/R9: These are bleeder resistors for some indicator lamps in a lamp ON/OFF switch. R8 Ω 0 R 0Ω 00 U iml88 - DJ LED V LED pcs U iml88 - DJ D SOD- 0./80V R=0Ω 00 R=.Ω 00 LED V LED pcs U iml88- DJ R=Ω 00 LED V LED pcs R9.Ω 0 LED V LED pcs Q iml0 /00V N-MOS ZD SOD- V U iml88 - DJ R=.Ω 00. PCB Layout and Photograph 0 IML Inc. ll rights reserved. Rev. 0. Mar. 0

4 iml88-0v C / 8W T Tube EVM - pplication Notes. Schematic of PCB U LED D Diode R U U R ZD R R Q LED S+ LED S+ LED S+ LED S+ LED S+ C_N FUSE BD C V+ MOV C V- Bridge R LED S+ LED LED LED LED9 LED0 LED LED LED LED S- LED8 C_L LED S- LED LED LED LED LED LED8 LED LED LED S- LED S- LED S- LED S- LED S+ LED S- LED S+ U R8 LED S- D Diode R U LED S+ LED S- LED S+ R9 LED S- R. Bill of Materials Component Description Package Fuse (0Ω) 0 BD Bridge Diode, MDB0S, 000V, MOV D Φ mm U, U, U, U, U iml88nl-dj DFN-x-L LED ~ LED8 Edison, V LED (CCT=000) 0 R Resistor, 0Ω 00 R Resistor, 0Ω 00 R Resistor, Ω 00 R Resistor,.Ω 00 R Resistor,.Ω 00 R Resistor, 0Ω 00 R Resistor, Ω 0 R8 Resistor, Ω 0 R9 Resistor,.Ω 0 D 80V/0. Schottky Diode, MBR 080-TP SOD- ZD Zener Diode, V SOD- Q HV NMOS, iml0, 00V/, V GS,MX =0V SOT- 0 IML Inc. ll rights reserved. Rev. 0. Mar. 0

5 iml88-0v C / 8W T Tube EVM - pplication Notes 8. Performance Data and Typical Characteristic 8. Test Result V C (V) I IN (m) PF THD (%) P IN (W) I IN Line Reg % % % % % % % % % 8. Power Factor vs. V C 8. THD vs. V C 0 IML Inc. ll rights reserved. Rev. 0. Mar. 0

6 iml88-0v C / 8W T Tube EVM - pplication Notes 8. Input Voltage and Input Current V C =98V V C =0V CH: Input Voltage, CH:Input Current CH: Input Voltage, CH:Input Current V C =V V C =V CH: Input Voltage, CH:Input Current CH: Input Voltage, CH:Input Current 0 IML Inc. ll rights reserved. Rev. 0. Mar. 0

7 iml88-0v C / 8W T Tube EVM - pplication Notes 9. Surge Performance In order to pass V surge test (IEC000--), a MOV is required. Without MOV, the light engine can pass 0V surge. Here are the test results. 0 IML Inc. ll rights reserved. Rev. 0. Mar. 0

8 iml88-0v C / 8W T Tube EVM - pplication Notes 0. EMI Performance 0 IML Inc. ll rights reserved. Rev. 0. Mar. 0

9 iml88-0v C / 8W T Tube EVM - pplication Notes 0 IML Inc. ll rights reserved. Rev. 0. Mar. 0

iml v C / 0W EVM - pplication Notes. IC Description The iml8683 is a Three Terminal Current Controller (TTCC) for regulating the current flowin

iml v C / 0W EVM - pplication Notes. IC Description The iml8683 is a Three Terminal Current Controller (TTCC) for regulating the current flowin iml8683-220v C / 0W EVM - pplication Notes iml8683 220V C 0W EVM pplication Notes Table of Content. IC Description... 2 2. Features... 2 3. Package and Pin Diagrams... 2 4. pplication Circuit... 3 5. PCB