Electronic Components Datasheet Search |
|
UBA2025 Datasheet(PDF) 11 Page - NXP Semiconductors |
|
UBA2025 Datasheet(HTML) 11 Page - NXP Semiconductors |
11 / 17 page UBA2025_1 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 01 — 16 October 2009 11 of 17 NXP Semiconductors UBA2025 CFL power IC 11. Application information 11.1 Design equations • Bottom frequency: • Feed forward frequency: Where: – X1 = 3.68 – X2 = 22.28 – t = 0.4 µs – Rint =3 kΩ – Cpar = 4.7 pF – Vref = 2.5 V – Vi(VDC) = 300 V (nominal) – RHV = 560 KΩ (see Figure 6) • Operating frequency = fbtm(max), fff(max), and fcm(max) Where: – fbtm = bottom frequency – fff(max) = maximum feed forward frequency – fcm(max) = maximum frequency due to capacitive mode detection • Preheat time: • Ignition time: • Non-overlap time: f btm 1 2C f C par + () X1 R IREF × R int – () × [] t + × ----------------------------------------------------------------------------------------------------------- Hz () = f ff 1 2C f C par + () X2 V ref R HV × × V iVDC () ----------------------------------------- R int – × t + × ------------------------------------------------------------------------------------------------------------------------- Hz () = t ph C CP 150 nF ------------------ R ref 30 k Ω --------------- × s () = t ign 15 16 ------ t ph s () × = t no 1.4 µs R ref 30 k Ω --------------- × = |
Similar Part No. - UBA2025 |
|
Similar Description - UBA2025 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |