ST ILB005V2 User Manual

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Demonstration board for the L6585DE combo IC

Features

■ Input voltage: 88 Vac - 277 Vac

■ Input frequency: 50 Hz - 60 Hz

■ Output power: 54 W

■ Expected efficiency: 90%

■ Expected Input power: 60 W

■ Minimum PF required: 0.95

■ Maximum THD: 8%

■ Lamp voltage (run mode): 110 Vrms

■ Lamp current (run mode): 455 mArms

■ Maximum ignition voltage: 900 Vpk

■ Maximum preheating voltage: < 240 Vac

■ Preheating time: 1 s

■ Ignition time: 60 - 100 ms

STEVAL-ILB005V2

for PFC and ballast control

Data Brief

Description

Requirements for modern fluorescent lamp electronic ballasts focus on driver efficiency and safety aspects.

Previous dedicated ICs for ballast applications allowed designers to achieve good driver efficiency, but they required a lot of external circuitry to obtain good power factor correction, low THD and a full set of protection features.

The STEVAL-ILB005V2 demonstration board is based on the new L6585DE combo IC for ballast applications, which offers designers a highperformance PFC stage, and a high capability, fully programmable, half-bridge high-voltage driver. The device is also equipped with a full set of protection features.

Designed in high-voltage BCD off-line technology, the L6585DE embeds a PFC controller, a halfbridge controller, the relevant drivers and all the logic circuitry necessary to build an electronic ballast.

STEVAL-ILB005V2

Another important feature of the IC is its capability to control and limit the lamp voltage during the ignition phase.

The pre-heating and ignition durations are independently configurable, as are the half-bridge switching frequencies for each operating phase (pre-heating, ignition and normal mode).

Other features, such as half-bridge over-current with frequency increase and PFC over-voltage, allow designers to build a reliable, flexible solution with a reduced component count.

March 2009 Rev 2 1/4

For further information contact your local STMicroelectronics sales office.

www.st.com

Schematic diagram STEVAL-ILB005V2

Vcc

Vpfc

Vrect

1A - 305Vac

2x68mH

1A - 305Vac

2x68mH

220

C18

-54

R27

3.3

R27

3.3

DZ1

BZX84C15

DZ1

BZX84C15

C22

1kV-Y

C22

1kV-Y

R22

240k

R22

240k

R40

680k

R40

680k

1.3m

2.4A

1.3m

2.4A

C21

275V-X2

100n

C21

275V-X2

100n

C121n1n

STTH1L06

5.6nC3C3

5.6n

C24cccc

RS21W1W

0.82

RS21W1W

0.82

1N4148D3D3

1N4148

R244747

R32

20.3k

R32

20.3k

DZ3

680k

39.7kR8R8

39.7k

R34

68k

R34

68k

680kR2R2

680k

C11

100n

C11

100n

RS1

0.33

RS1

0.33

R21

R13

825k

R13

825k

R35

68k

R35

68k

R31

120k

R31

120k

C14

100n

C14

100n

16.2k

C17

10n

C17

10n

C13

10u

C13

10u

R20

1.5M

R20

1.5M

R29

68k

R29

68k

R18

26.7k

R18

26.7k

R10

75k

R10

75k

275V

470n

275V

470n

STD5NM50-Z

R15

825k

R15

825k

C20

275V-X2

100n

C20

275V-X2

100n

R30

560k

R30

560k

R28

68k

R28

68k

R16

18k

R16

18k

2.2M

C10

560n

C10

560n

10n

2KBP06M

2.2M

RT1

450V

22u

450V

22u

T2A

2.2MR5R5

2.2M

DZ2

C23

1kV-Y1n1n

C23

1kV-Y1n1n

R14

825k

R14

825k

R26

3.3

R26

3.3

R25

STD5NM50-ZQ3Q3

STD5NM50-Z

R33

68k

R33

68k

ACin 88-277Vac + earth

C15

2kV

4.7n

C15

2kV

4.7n

R41

2.4A

1.5mH

2.4A

1.5mH

680k

R19

29.4k

R19

29.4k

1N4148D2D2

1N4148

EOL

LSD

OUT

HSD

BOO

PFG

PFCS

MULT

L6585DE

STD5NM50-Z

C16

630Vdc

100n

C16

630Vdc

100n

1 Schematic diagram

Figure 1. STEVAL-ILB005V2 schematic diagram

C15

2kV

4.7n

C15

2kV

4.7n

C16

630Vdc

100n

C16

630Vdc

2 1

C24

R34

68k

R26

Vpfc

R35

68k

R29

68k

R29

68k

R28

68k

Vrect

T1T12.4A

1.5mH

STTH1L06

R13

825k

R5R52.2M

2.2M

22u

C1C1450V

68k

R33

R15

R14

825k

R14

825k

2.2M

R10

75k

R10

75k

4 8

1 5

680k

R26

C12

BZX84C15

DZ1

Vcc

D2D21N4148

1N4148

C13

C14

10n

825k

R16

18k

R16

18k

R8R839.7k

39.7k

2.2M

R2R2680k

680k

3.3

10u

100n

C6 cacaC6 ca

R9 cacaR9 ca

1 2

C2C2275V

C11

470n

R27

100n

3.3

1 2

2.4A

1.3m

STD5NM50-Z

R24

HSD

OUT

BOO

Vcc

CTCTR

COMP

L6585DE

ININV

ZCZCD

PFG

PFCS

1 47

D3D31N4148

1N4148

STD5NM50-Z

680k

R41

LSD

MULT

2 220

2 220 R1

WT5HO-54

Q3Q3STD5NM50-Z

R25

HBCS

EOL-L-R

EOL

TcTch

EOI

OSC

GND

T5HO-54

STD5NM50-Z

3 cc

3 cc R2

R19

16.2k

100n

R40

680k

R30

560k

R30

560k

R31

120k

R32

20.3k

C17

10n

0.82

RS2

DZ3

1 2

DZ2

1 2

C18

R22

240k

R20

1.5M

R21

29.4k

RS1

C9C91u1uC9C91u

C3C35.6n

C10

560n

26.7k

R18

1W1W0.33

5.6n

2/4

1kV-Y

C22

2KBP06M

- +

100n

C21

275V-X2

C21

275V-X2

C23

1kV-Y

RT1

2x68mH

T2T21A - 305Vac

C20

100n

C20

100n

275V-X2

1 2 3

ACin 88-277Vac + earth

T2A

ACin 88-277Vac + earth

STEVAL-ILB005V2 Revision history

2 Revision history

Table 1. Document revision history

Date Revision Changes

24-Feb-2009 1 Initial release

18-Mar-2009 2 Updated main product on the title and in description

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STEVAL-ILB005V2

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4/4

ST ILB005V2 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1 Schematic diagram

Figure 1. STEVAL-ILB005V2 schematic diagram

2 Revision history

Table 1. Document revision history