NXP Semiconductors UBA2021, User Manual

Page 1: ...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 evaluati...

Page 2: ...served User manual Rev 1 2 November 2010 2 of 26 Contact information For more information please visit http www nxp com For sales office addresses please send an email to salesaddresses nxp com NXP Se...

Page 3: ...CFL applications To optimize flexibility almost no protection is build in except for IC internal protection The board does not conform with any safety norm CAUTIONS Do not supply voltages to the boar...

Page 4: ...preheat sweep and oscillator capacitors the low voltage supply VDD components and some other low voltage components The daughter PCB can easily be replaced if it becomes damaged Care should be taken...

Page 5: ...ocument is subject to legal disclaimers NXP B V 2010 All rights reserved User manual Rev 1 2 November 2010 5 of 26 NXP Semiconductors UM10412 UBA2021 evaluation board Fig 3 UBA2014 21 Main board with...

Page 6: ...preheat time of 1 85 s Fig 4 Daughter board with UBA2021 circuit 019aaa284 30 k R3 C1 A1 100 nF C2 330 nF 16 V C3 100 pF 1 2 47 R4 2 1 150 k R1 1 2 150 k R2 1 2 160 k R8 1 2 2 1 2 1 2 CI 13 1 14 RHV...

Page 7: ...r 2 X115 header 2 X2 socket 3 1 2 C5 33 nF 100 V 1 2 47 k R25 1 2 D placed in header V6 2SK3569 S G D placed in header V3 2SK3569 S G Y5 jumper C6 4 7 nF 2000 V 1 2 C19 470 nF 63 V 1 CSN 1 2 3 2 C17 6...

Page 8: ...1 1 2 1 4 2 3 2 C3 47 nF 305 Vac 1 2 C2 47 nF 305 Vac 1 1 1 2 2 2 X1 VAC In 230 V 50 Hz VDC In 400 V MKDS 2 5 2 5 08 1 2 Fig 7 Main board dimming input only in combination with UBA2014 daughter board...

Page 9: ...08 1 1 1 X6 TP 2 Y3 jumper Y1 jumper Y4 jumper Y2 jumper 1 2 X9 TP 1 3 X11 TP 1 4 X13 TP X21 LAMP 3 MKDS 2 2 4 5 08 1 1 X20 TP 1 2 X24 TP 1 3 X27 TP 1 4 X30 TP X42 LAMP 2 MKDS 2 2 4 5 08 1 1 X38 TP 1...

Page 10: ...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 connec...

Page 11: ...P Comment X6 connection for filament 1 X9 connection for filament 1 X11 connection for filament 2 X13 connection for filament 2 Table 7 Connections of the daughter board Test Pin Name Comment X78 CSN...

Page 12: ...e rather than by the lamp current or the half bridge current 5 7 1 Half bridge current sensing The half bridge current is sensed for controlling the preheat current Different values of the sense resis...

Page 13: ...of the transformer Table 11 shows the different inductance values The specifications of the transformer are listed in Section 6 Transformer T3 has a double footprint that enables the use of different...

Page 14: ...valent Bobbin RM 8 12 pin vertical type Fig 10 Transformer T1 schematic diagram 019aaa301 N3 10 12 7 9 6 1 N2 N1 Table 13 Electrical characteristics for transformer T1 Properties Test conditions Value...

Page 15: ...matic diagram 019aaa302 N7 9 10 7 8 6 1 2 N6 N1 N2 3 N3 4 N4 5 N5 Table 14 Electrical characteristics for transformer T3 Properties Test conditions Value Unit Tolerance InductanceN1 N5 50 kHz 0 1 V L0...

Page 16: ...All rights reserved User manual Rev 1 2 November 2010 16 of 26 NXP Semiconductors UM10412 UBA2021 evaluation board 6 2 2 Dimensions Core E30 15 7 Core material Ferrite Air gap in center leg 1100 m Bob...

Page 17: ...ault settings Jumper Position Comment X32 short half bridge sense resistor 1 used for PCS X34 open X33 1 2 open 2 3 short use lamp current sensing X114 short connect transformer T1 X115 short X39 1 2...

Page 18: ...50 V 1 C5 n m C6 470 pF 500 V Capacitor ceramic 500 V NP0 5 C7 1 F 25 V Capacitor ceramic X7R 25 V 10 C8 1 nF 100 V Capacitor ceramic X7R 100 V 10 C9 10 n Capacitor ceramic X7R 50 V 10 C10 2 2 n 100 V...

Page 19: ...5 C R5 8 2 K Resistor 1 0 6 W 50 ppm MRS25 R6 R8 R9 1 2 W Resistor Power 5 2 W 100 ppm C MFP R7 1 K Resistor 1 0 6 W 50 ppm MRS25 R10 33 2 W Resistor Power 5 2 W 450 ppm C Carbon Film R18 33 k Resisto...

Page 20: ...2 November 2010 20 of 26 NXP Semiconductors UM10412 UBA2021 evaluation board 9 Layout Top view Bottom view Fig 14 Daughter PCB layout 019aaa291 T 019aaa290 R1A Top view Bottom view Fig 15 Daughter boa...

Page 21: ...subject to legal disclaimers NXP B V 2010 All rights reserved User manual Rev 1 2 November 2010 21 of 26 NXP Semiconductors UM10412 UBA2021 evaluation board Fig 16 UBA2014 21 main board PCB layout top...

Page 22: ...cument is subject to legal disclaimers NXP B V 2010 All rights reserved User manual Rev 1 2 November 2010 22 of 26 NXP Semiconductors UM10412 UBA2021 evaluation board Fig 17 UBA2014 21 main board PCB...

Page 23: ...CURRENT SENSE GND GND PCS 2021 VCC GND GL VBRG PCS GH SH LVS VREF CSP CSN UBA20 14 21 Daughter Board High Side FET Low Side FET HALF BRIDGE WWW NXP COM UBA20 14 21 DEMO BOARD V1 2 GND GND GND High Vo...

Page 24: ...10 All rights reserved User manual Rev 1 2 November 2010 24 of 26 NXP Semiconductors UM10412 UBA2021 evaluation board 10 Glossary CFL Compact Fluorescent Lamp MOSFET Metal Oxide Semiconductor Field Ef...

Page 25: ...operating safeguards to minimize the risks associated with their applications and products NXP Semiconductors does not accept any liability related to any default damage costs or problem which is base...

Page 26: ...4 3 2 Main board 4 4 Schematics 6 5 Connectors 10 5 1 Power supply connectors 10 5 2 Dimming input 10 5 3 Lamp connectors 10 5 4 Test points 11 5 5 Transformer T1 12 5 6 FET 12 5 7 Current sense sele...