UBA2014P Просмотр технического описания (PDF) - Philips Electronics

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UBA2014P

600 V driver IC for HF fluorescent lamps

Philips Electronics 

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F1

1A

+ VDC

400 V

C7

330 nF

VDD 7

SUPPLY

UBA2014

CT 1

PREHEAT

TIMER

REFERENCE

CURRENT

BOOTSTRAP

HIGH SIDE

DRIVER

9 FVDD

10 GH

11 SH

DRIVER

CONTROL

LOW SIDE

DRIVER

6 GL

ADAPTIVE

NON-OVERLAP TIMING

AND CAPACITIVE

MODE DETECTOR

12 ACM

PREHEAT

CURRENT

SENSOR

8 PCS

DIVIDER

VOLTAGE

CONTROLLED

OSCILLATOR

LAMP

VOLTAGE

SENSOR

13 LVS

AVERAGE − 16 CS−

CURRENT

SENSOR

+

15 CS+

C5

100 nF

TR1

IRF820

TR2

IRF820

C6

1.2 nF

C10

5.6 nF

D1

BYD77D

L1

1.9 mH

Z1

12 V

R10

1 MΩ

R1

1 MΩ

R13

150 Ω

R9

47 Ω

R8

8.2 kΩ

R16

1.5 Ω

C8

330 pF

C19

56 nF

R20

220 kΩ

R5

10 kΩ

D4

BYD77D

C22

C17 8.2 nF

6.8 nF

C24

100 nF

TLD36W

C15

330 nF

4

IREF

5

GND

R12

33 kΩ

3

2

14

CF

CSW Vref

C2

R14

R4

12 nF 1 Ω

1 MΩ R3

C14

C13

100 pF 220 nF

220 kΩ

C3 R2

1 nF 8.2

kΩ

C23

100 nF

R18

180 kΩ

C20

68 nF

MGW586

Fig.8 Test and application circuit.

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