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Summary of Contents for NXP Semiconductors UBA2021
- Page 1 UM10412 UBA2021 evaluation board Rev. 1 — 2 November 2010 User manual Document information Info Content Keywords UBA2021, evaluation board, TL, CFL Abstract This document is the user manual for the UBA2021 evaluation board.
- Page 2 UM10412 NXP Semiconductors UBA2021 evaluation board Revision history Date Description 20101102 First issue Contact information For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com UM10412 All information provided in this document is subject to legal disclaimers.
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Page 3: Introduction
Always operate with burner (lamp) connected to the board and connected to the resonant circuit. Failing to do so may damage the board. • Do not use the UBA2021 daughter board in combination with the (old) V1.1 main board. The V1.1 board is blue instead of green. UM10412 All information provided in this document is subject to legal disclaimers. -
Page 4: Board Description
The board consists of two separate PCBs. The main board with the resonance circuit and a small daughter board with the UBA2021 IC. 3.1 Daughter board The daughter board contains the UBA2021 IC with the preheat, sweep and oscillator capacitors, the low voltage supply (V ) components and some other low voltage components. - Page 5 UM10412 NXP Semiconductors UBA2021 evaluation board 019aaa289 Fig 3. UBA2014/21 Main board with UBA2021 daughter board inserted UM10412 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved. User manual Rev. 1 — 2 November 2010...
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Page 6: Schematics
4. Schematics Figure 4 is a schematic of the daughter board with the UBA2021 IC. The component values for the oscillator and sweep are RREF = 30 kΩ, CF = 100 pF, CP = 330 nF. These values will give a minimum oscillator frequency of 39.5 kHz and a preheat time of 1.85 s. - Page 7 xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx Vbrg 220 kΩ connection for daughterboard placed in header 43 kΩ 43 kΩ 47 kΩ 47 kΩ...
- Page 8 UM10412 NXP Semiconductors UBA2021 evaluation board VDC In = 400 V 1N4937 MKDS 2.5/2-5.08 75 kΩ 47 μF/ 350 V GBU8K 75 kΩ VAC In = 230 V 50 Hz 1.5 mH Fuseholder 5x20 75 kΩ 47 nF/ 47 nF/...
- Page 9 UM10412 NXP Semiconductors UBA2021 evaluation board X110 X111 X112 X113 header 2 header 2 header 2 header 2 jumper jumper jumper jumper LAMP 4 X90 TP X6 TP X92 TP X9 TP X94 TP X11 TP X96 TP X13 TP MKDS 2.2/4-5.08...
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Page 10: Connectors
X3-2 Mains 230 V AC 5.2 Dimming input The UBA2021 does not have dimming functionality so this input is not used. If dimming is required, please use the UBA2014. 5.3 Lamp connectors There are four lamp connectors on the board. The connectors are listed in... -
Page 11: Test Points
X120 PCS_2021 preheat current sense for the UBA2021 daughter board UM10412 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved. User manual Rev. -
Page 12: Transformer T1
5.7.2 Lamp current sensing The UBA2021 does not sense the lamp current, so X39 should be shorted between pin 2 and pin 3 in order to connect the lamp to ground. UM10412 All information provided in this document is subject to legal disclaimers. -
Page 13: Using Transformer T3
UM10412 NXP Semiconductors UBA2021 evaluation board 5.8 Using transformer T3 The jumper X117 should be inserted to use the flexible transformer T3. This will connect SH to pin 1 of the transformer. Table 11 shows the different inductance values. The... -
Page 14: Transformer Specifications
UM10412 NXP Semiconductors UBA2021 evaluation board 6. Transformer specifications 6.1 Transformer T1 6.1.1 Schematic diagram • Manufacturer: Würth Elektronik • Part number: 760870401 019aaa301 Fig 10. Transformer T1 schematic diagram 6.1.2 Winding specification Table 13. Electrical characteristics for transformer T1... -
Page 15: Transformer T3
UM10412 NXP Semiconductors UBA2021 evaluation board 21.59 mm (max) 21.59 mm 17.27 mm (max) (max) 019aaa251 Fig 11. Transformer T1 6.2 Transformer T3 6.2.1 Schematic diagram • Manufacturer: Würth Elektronik • Part number: 760870402 019aaa302 Fig 12. Transformer T3 schematic diagram Table 14. -
Page 16: Dimensions
UM10412 NXP Semiconductors UBA2021 evaluation board 6.2.2 Dimensions 31.5 mm (max) 31.5 mm 21 mm (max) (max) 019aaa299 Fig 13. Transformer T3 • Core: E30/15/7 • Core material: Ferrite Air gap in center leg: 1100 μm • • Bobbin: CSH-E30/7-1S-10P UM10412 All information provided in this document is subject to legal disclaimers. -
Page 17: Application Example
External connections for T5 HE 35W Jumper Position Comment 400 V DC External dimming the UBA2021 board has no dimming so this input can be left open. burner T5 HE 35 W burner UM10412 All information provided in this document is subject to legal disclaimers. -
Page 18: Bill Of Materials (Bom)
Resistor 1 % 0.125 W 100 ppm RC12H 3.3 kΩ Resistor 1 % 0.125 W 100 ppm RC12H 160 kΩ V1, V2, V3 BAS29 NXP Semiconductors, Diode, 50 ns 90 V 250 mA BC857C NXP Semiconductors, PNP transistor BC847C NXP Semiconductors, NPN transistor UM10412 All information provided in this document is subject to legal disclaimers. - Page 19 UM10412 NXP Semiconductors UBA2021 evaluation board Table 18. BOM main board Reference Value or type no. Component Capacitor MKT 400 V DC 10 % 68 nF/400 V Capacitor, MKP Class X2 20 % C2, C3 47 nF/305 V AC Capacitor MKT 100 V DC 5 %...
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Page 20: Layout
UM10412 NXP Semiconductors UBA2021 evaluation board 9. Layout 019aaa291 019aaa290 Top view Bottom view Fig 14. Daughter PCB layout C7 C6 C1 C3 V2 2 019aaa292 019aaa296 Top view Bottom view Fig 15. Daughter board silk screen UM10412 All information provided in this document is subject to legal disclaimers. - Page 21 UM10412 NXP Semiconductors UBA2021 evaluation board TOP SIDE UBA2014EB R1C 3322 029 91481 019aaa295 Fig 16. UBA2014/21 main board PCB layout top view UM10412 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved.
- Page 22 UM10412 NXP Semiconductors UBA2021 evaluation board BOTTOM SIDE 019aaa293 Fig 17. UBA2014/21 main board PCB layout bottom view UM10412 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved. User manual Rev. 1 — 2 November 2010...
- Page 23 xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx EXPERIMENTING AREA X117 LAMP 1 15 μH 2 mH 2.5 mH 15 μH 3 mH 2 A/T 3.5 mH HALF...
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Page 24: Glossary
UM10412 NXP Semiconductors UBA2021 evaluation board 10. Glossary CFL — Compact Fluorescent Lamp MOSFET — Metal–Oxide Semiconductor Field-Effect Transistor NMOST — Negative channel Metal–Oxide Semiconductor Transistor TL — Tubular Lamp UM10412 All information provided in this document is subject to legal disclaimers. -
Page 25: Legal Information
In no event shall NXP Semiconductors be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost In no event shall NXP Semiconductors, its affiliates or their suppliers be liable profits, lost savings, business interruption, costs related to the removal or... -
Page 26: Table Of Contents
UM10412 NXP Semiconductors UBA2021 evaluation board 12. Contents Introduction ......3 Safety warnings and cautions ... . . 3 Board description .
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