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UBA2021 Datasheet(PDF) 3 Page - NXP Semiconductors |
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UBA2021 Datasheet(HTML) 3 Page - NXP Semiconductors |
3 / 16 page UBA2021_4 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 04 — 25 July 2008 3 of 16 NXP Semiconductors UBA2021 630 V driver IC for CFL and TL lamps 6. Pinning information 6.1 Pinning 6.2 Pin description 7. Functional description 7.1 Introduction The UBA2021 is an integrated circuit for electronically ballasted compact fluorescent lamps and their derivatives operating with mains voltages up to 240 V (RMS). It provides all the necessary functions for preheat, ignition and on-state operation of the lamp. In addition to the control function, the IC provides level shift and drive functions for the two discrete power MOSFETs, T1 and T2 (see Figure 7). Fig 2. Pin configuration (SO14) Fig 3. Pin configuration (DIP14) UBA2021T FS CI G1 RHV S1 CF n.c. SGND VS RREF G2 RS PGND CP 001aai566 1 2 3 4 5 6 7 8 10 9 12 11 14 13 UBA2021P FS CI G1 RHV S1 CF n.c. SGND VS RREF G2 RS PGND CP 001aai567 1 2 3 4 5 6 7 8 10 9 12 11 14 13 Table 3. Pin description Symbol Pin Description FS 1 high side floating supply voltage G1 2 gate high transistor (T1) S1 3 source high transistor (T1) n.c. 4 high-voltage spacer, not to be connected VS 5 low voltage supply G2 6 gate low transistor (T2) PGND 7 power ground CP 8 timing/averaging capacitor RS 9 current monitoring input RREF 10 reference resistor SGND 11 signal ground CF 12 oscillator capacitor RHV 13 start-up resistor/feed-forward resistor CI 14 integrating capacitor |
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