AP3064

Document number: DS37485 Rev. 2 - 2

1 of 20

www.diodes.com

September 2015

© Diodes Incorporated

AP3064

FOUR-CHANNEL CURRENT SOURCE BOOST LED DRIVER

Description

The AP3064 is a high efficiency boost controller with 4-string current

sources for driving WLED backlight. It operates over a wide input

voltage range from 4.5V to 33V.

The current of 4 strings are simply programmed from 20mA to 220mA

with an external resistor. The current matching between each string is

±1.5% (Typ). Its operating frequency can be adjusted from 0.1MHz to

1MHz.

The AP3064 features cycle-by-cycle current limit, soft-start, under

voltage

lockout

(UVLO)

protection,

programmable

OVP,

over

short/Schottky diode open protection and Schottky Diode short-circuit

protection.

The AP3064 is available in SOIC-16, PSOP-16, DIP-16 and QFN-

4×4-16 packages.

Features



Input Voltage Range: 4.5V to 33V



Drives up to 4 Strings in Parallel, 220mA per String



Programmable WLED Current from 20mA to 220mA



Adjustable Operating Frequency: 100kHz to 1MHz



String-to-string Current Matching Accuracy: ±1.5%



Built-in OCP, OTP, UVLO



External PWM Dimming



Open/Short LED Protection



Programmable Soft-start



Programmable OVP



Schottky Diode/Inductor Short-circuit Protection





Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)



Halogen and Antimony Free. “Green” Device (Note 3)

Applications



LCD Monitor



LCD Display Module



LCD TV

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

2. See http://www.diodes.com/quality/lead_free.html

for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"

and Lead-free.

3. Halogen- and Antimony-

free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

Pin Assignments

(Top View)

(Top View)

(Top View)

(Top View)

SOIC-16

PSOP-16

DIP-16

QFN-4×4-16

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

CH4

ISET

OVP

RT

EN

CS

OUT

VCC

VIN

STATUS

COMP

DIM

CH1

CH2

GND

CH3

CH 4

ISET

OVP

RT

EN

CS

OUT

VCC

VIN

STATUS

COMP

DIM

CH1

CH2

GND

CH 3

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

CH4

ISET

OVP

RT

EN

CS

OUT

VCC

VIN

STATUS

COMP

DIM

CH1

CH2

GND

CH3

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

GND

CH 3

CH 4

OVP

OUT

VCC

VIN

STATUS

1

E P

13

12

11

10

9

8

7

6

5

4

3

2

16

15

14

Pin 1 Mark