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AP3064
Document number: DS37485 Rev. 2 - 2
1 of 20
www.diodes.com
September 2015
© Diodes Incorporated
NEW PROD UCT
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
temperature protection (OTP), open/short LED protection, V
OUT
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
V
OUT
Short/Schottky Diode Open 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
CH4
ISET
OVP
RT
EN
CS
OUT
VCC
VIN
STATUS
COMP
DIM
CH1
CH2
GND
CH31
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
CH3
CH4
OVP
ISET
RT
EN
CS
OUT
VCC
VIN
STATUS
COMP
DIM
CH1
CH2
1
E P
13
12
11
10
9
8765
4
3
2
16 15 14
Pin 1 Mark
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