THine Electronics, Inc.

1/11

THL6531_Rev.1.01_E

Copyright© 2013 THine Electronics, Inc. All rights reserved.

VIN

VREF

LX

VGH_OUT

PGND

VGH_FB

AGND1

VGL_FB

VGL_OUT

Detector

AVDD

AVDD

Boost

DOUT

DIN

FB

PC

AVDD

AMP_NON

AMP_OUT

VLS

VGH

VGL

VLS

VREF

V_VGH

GOUT

GR

Gate

slope

VGHM

GIN

GDELAY

VCC

AGND2

AMP_INV

UVLO

VIN

VCC

VCOM

OSC

OSC

1/2OSC

OSC

1/2OSC

1/2OSC

VIN

VREF

LX

VGH_OUT

PGND

VGH_FB

AGND1

VGL_FB

VGL_OUT

Detector

AVDD

AVDD

Boost

DOUT

DIN

FB

PC

AVDD

AMP_NON

AMP_OUT

VLS

VGH

VGL

VLS

VREF

V_VGH

GOUT

GR

Gate

slope

VGHM

GIN

GDELAY

VCC

AGND2

AMP_INV

UVLO

VIN

VCC

VCOM

OSC

OSC

1/2OSC

OSC

1/2OSC

1/2OSC

THV6531

Boost converter / 2 channel charge pump

Description

THV6531 is a controller IC power supply system with

boost converter and 2 channel charge pump circuit.

The positive and negative charge pumps provide

regulated TFT LCD gate-on and gate-off supplies. The

chip includes a VCOM buffer and a gate slop circuit.

Soft start / Over current protection / Under voltage lock

out protection / Thermal shut down are built in.

Mounted area is reducible by 24-pin QFN.

Application

･

Mobile phone display

・

Car Navigator display

･

Laptop/Netbook/Tablet PC display

Pin Configuration

Features

・

Input voltage range : 2.5V – 5.5V

・

Boost converter

Maximum output voltage : 18V

Switching limit current : 2.5A

Feedback voltage accuracy : +/-1%

Switching frequency : 1.2MHz

・

Positive charge pump

Feedback voltage accuracy : +/-1.5%

Switching frequency : 600kHz

・

Negative charge pump

Feedback voltage accuracy : +/-5%

Switching frequency : 600kHz

・

Operational amplifier

Output short-circuit current : +/-200mA

・

Gate slop

・

Detector

・

Protection circuit

Soft start

Over current protection

Under voltage lock out protection

Thermal shut down

・

4mm x 4mm QFN 24pin package

Block Diagram

1

2

3

4

12

11

10

9

5

6

7

8

Exposed Thermal Pad

AMP_NON

AMP_INV

AMP_OUT

AGND2

PC

DIN

AGND1

VCC

(Top view)

25 GNDEXP

18

17

16

15

14

13

19

20

21

22

24

23

AVDD

VGH_OUT

FB

PGND

1

2

3

4

12

11

10

9

5

6

7

8

Exposed Thermal Pad

AMP_NON

AMP_INV

AMP_OUT

AGND2

PC

DIN

AGND1

VCC

(Top view)

25 GNDEXP

18

17

16

15

14

13

19

20

21

22

24

23

AVDD

VGH_OUT

FB

PGND

1

2

3

4

12

11

10

9

5

6

7

8

Exposed Thermal Pad

AMP_NON

AMP_INV

AMP_OUT

AGND2

PC

DIN

AGND1

VCC

(Top view)

25 GNDEXP

18

17

16

15

14

13

19

20

21

22

24

23

AVDD

VGH_OUT

FB

PGND

1

2

3

4

12

11

10

9

5

6

7

8

Exposed Thermal Pad

AMP_NON

AMP_INV

AMP_OUT

AGND2

PC

DIN

AGND1

VCC

(Top view)

25 GNDEXP

18

17

16

15

14

13

19

20

21

22

24

23

AVDD

VGH_OUT

FB

PGND