Issue Number │001
February 2011
New Product
Announcement
AP8800A
Simple cost effective solution for driving multiple 1‐W LEDs
The
AP8800A
is
an
improved accuracy cost
effective 350mA buck LED
driver in TSOT23-5.
The device can drive up to
7 LEDs, depending on the
forward voltage of the
LEDs, in series from a
voltage source of 8V to
28V. Series connection of
the LEDs provides identical
LED currents resulting in
uniform brightness and
eliminating the need for
ballast resistors.
The AP8800A switches at
frequency up to 600kHz.
This allows the use of small
size external components.
The TSOT23-5 (green
molding) package and
coupled with it requiring
only 4 external components
produces a small solution
footprint.
The accuracy, temperature
range and cost make it
ideally suited to cost
sensitive
domestic/commercial
lighting applications.
The Diodes advantage
The AP8800A provides a simple cost effective solution for general illumination LED lamps
ƒ 28V 350mA LED drive capability
Drives up to 7 LED in series and provides cost effective solution for MR16 and other 12VAC/DC systems
ƒ 5% initial average LED current accuracy
Meets accuracy requirements of most lighting apps at cost effective price and improves inter‐channel matching.
ƒ Simple digital PWM dimming with DC dimming on the CTRL pin
Provides flexible scheme to users with different dimming methods: DC for thermal control, PWM for brightness control
ƒ High switching frequency up to 600kHz
Small inductance value and size reducing overall solution size
ƒ Small footprint TSOT23‐5 package with only 4 external components
High power density small PCB footprint solution
Applications
ƒ 1W LED driving
ƒ General illumination
ƒ MR 16 lighting ƒ 12VAC/DC lighting
www.diodes.com
Issue Number │001
February 2011
New Product
Announcement
AP8800A
Simple cost effective solution for
driving multiple 1W LED
Typical Application:
D1
MR16 LED lamp
C1
SW
12VAC
AP8800A
D4
C2
CTRL
~
VIN
D3
GND
D2
SET
RSET
L1
D5
Diodes Medium Voltage High brightness LED Drivers
AP8800A
ZXLD1350
ZXLD1352
AL8805
ZXLD1360
AP8802H
ZXLD1362
ZXLD1366
Temp range
‐40 ~ 105oC
‐40 ~ 105oC
‐40 ~ 125oC
‐40 ~ 125oC
‐40 ~ 105oC
‐40 ~ 125oC
‐40 ~ 125oC
VIN
LED Current
8 ~ 28V
370mA
7 ~ 30V
380mA
6 ~ 30V
1A
7 ~ 30V
1A
8 ~ 60V
1A
6 ~ 60V
1A
6 ~ 60V
1A
Accuracy
Frequency
Efficiency
Dimming
5%
600kHz
95%
PWM/DC
5%
1MHz
95%
PWM/DC
5%
1MHz
98%
PWM/DC
5%
1MHz
95%
PWM/DC
5%
500kHz
92%
PWM/DC
5%
1MHz
95%
PWM/DC
2.5%
1MHz
95%
PWM/DC
Package
θJA (oC/W)
TSOT23‐5
(200)
TSOT23‐5
(200)
SOT25 (200)
TSOT23‐5
(82)
SO‐8EP (45)
TSOT23‐5 (82)
TSOT23‐5 (82)
DFN3030‐6 (44)
SO‐8EP (45)
To find out more information:
Medium voltage LED Driver Web page http://www.diodes.com/products/catalog/list.php?parent‐id=91
Datasheet http://www.diodes.com/datasheets/AP8800A.pdf
Ordering information
Device
AP8800AWT‐7
Packaging
Part mark
Reel size
Tape width
Quantity
TSOT23‐5
AZ YWX
7”
8mm
3000
All variants are in packages that are “Green” Molding Compound (No Br, Sb) with Lead Free Finish/RoHS Compliant (Note 1)
Notes:1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied, see EU Directive 2002/95/EC Annex Codes for date coding on part marks
W A~Z week 1~26 a~z week 27~53 X: A~Z: Internal code Y Year 0~9
www.diodes.com