MP4652—HIGH PERFORMANCE OFF-LINE TV LED DRIVER

MP4652 Rev.1.01

www.MonolithicPower.com

2

9/23/2011

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© 2011 MPS. All Rights Reserved.

SIMPLIFIED TYPICAL APPLICATION

VIN

EN

PWM

400V GND

400V

REF

REF

OVP1

10

11

12

5V* (See Note)

OCP

PWMOUT

PWMOUT

SYNC

EN

FB

VCC

BFS

FSET

FT

GND

GL

PWMOUT

VIN

GR

OVP

PWMIN

COMP

1

2

3

4

5

6

7

8

9

MP4652

13

14

15

16

SSD

OVP1

OCP

400V GND

.

.

.

.

.

.

OVP2

OVP2

REF

FCOMP

FCOMP

IREF

MP4652 LLC Application: Recommended for PWM dimming frequencies from 100Hz to 2kHz

*Note: The 5V could be an accurate reference voltage generated from a TL431.

VIN

EN

Dim

400V GND

400V

REF

REF

FB

OVP

10

11

12

FB

OCP

PWM

OUT

PWM

OUT

SYNC

EN

FB

VCC

BFS

FSET

FT

GND

GL

PWMOUT

VIN

GR

OVP

PWMIN

COMP

1

2

3

4

5

6

7

8

9

MP4652

13

14

15

16

SSD

SYNC

SYNC

SYNC

OVP

OCP

400V GND

.

.

.

Half Bridge Application: Recommended for PWM Dimming Frequencies Greater Than 2kHz