AL9910A Datasheet PDF - Diodes
Part Number | AL9910A | |
Description | UNIVERSAL HIGH VOLTAGE HIGH BRIGHTNESS LED DRIVER | |
Manufacturers | Diodes | |
Logo | ||
There is a preview and AL9910A download ( pdf file ) link at the bottom of this page. Total 15 Pages |
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UNIVERSAL HIGH VOLTAGE HIGH BRIGHTNESS LED DRIVER
Description
The AL9910/A high voltage PWM LED driver-controller provides an
efficient solution for offline high brightness LED lamps from rectified
line voltages ranging from 85VAC up to 277VAC. The AL9910 drives
external MOSFETs at switching frequencies up to 300kHz, with the
switching frequency determined by a single resistor. The AL9910
topology creates a constant current through the LEDs providing
constant light output. The output current is programmed by one
external resistor and is ultimately determined by the external
MOSFET chosen and therefore allows many low current LEDs to be
driven as well as a few high current LEDs.
The LED brightness can be varied by both Linear and PWM dimming
using the AL9910’s LD and PWM_D pins respectively. The PWM_D
input operates with duty ratio of 0-100% and frequency of up to
several kHz.
The AL9910 can withstand input voltages up to 500V which makes it
very resilient to transients at standard mains voltages. As well as
standard SO-8 package the AL9910 is available in the thermally
enhanced SO-8EP package.
Pin Assignments
(Top View)
VIN
CS
GND
GATE
1
2
3
4
AL9910
8 ROSC
7 LD
6 VDD
5 PWM_D
SO-8
(Top View)
VIN
CS
GND
GATE
1
2
3
4
AL9910
8 ROSC
7 LD
6 VDD
5 PWM_D
SO-8EP
Features
• >90% Efficiency
• Universal Rectified 85 to 277VAC Input Range
• Input Voltage Up to 500V
• Internal Voltage Regulator Removes Start-Up Resistor
7.5V MOSFET Drive – AL9910
10V MOSFET Drive – AL9910A
• Tighter Current Sense Tolerance: 5% AL9910-5, AL9910A-5
• Drives LED Lamps with Both High and Low Current LEDs
• LED Brightness Control with Linear and PWM Dimming
• Internal Thermal Protection (OTP)
• Available in SO-8 and SO-8EP Packages
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
Applications
• LED Offline Lamps
• High Voltage DC-DC LED Driver
• Signage and Decorative LED Lighting
• Back Lighting of Flat Panel Displays
• General Purpose Constant Current Source
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.
AL9910/ AL9910A/ AL9910-5/ AL9910-5A
Document number: DS35103 Rev. 9 - 2
1 of 15
www.diodes.com
May 2014
© Diodes Incorporated
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Typical Characteristics
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-40
-15 10 35 60
AMBIENT TEMPERATURE (°C)
85
Change in Current Sense Threshold vs. Ambient Temperature
10 0
90
80
ILED = 281mA
VIN = 264V
TA = 23.5C
70
60
50
40
30
20
10
0 0 50 100 150 200 250 300
VLD DIMMING CONTROL (mV)
IOUT MAX vs. VLD Dimming Control
1.5
1.0
0.5
0.0 ROSC = 226kΩ
-0.5
-1.0
ROSC = 1MΩ
-1.5
-2.0
-40 -15
10
35
60 85
AMBIENT TEMPERATURE (°C)
Change in Oscillation Frequency vs. Ambient Temperature
AL9910/ AL9910A/ AL9910-5/ AL9910A-5
46 0
44 0
42 0
VIN = 400V
40 0
38 0
VIN = 15V
36 0
34 0
32 0
30 0
28 0
-40
-15 10 35 60
AMBIENT TEMPERATURE (°C)
Input Current vs. Ambient Temperature
45 0
ILED(NOM) = 180mA
40 0
85
35 0
30 0
25 0
20 0
15 0
85 105 125 145 165 185 205 225 245 265
INPUT VOLTAGE (VRMS)
180mA LED Driver Short Circuit Output Current vs. Input Voltage
AL9910/ AL9910A/ AL9910-5/ AL9910-5A
Document number: DS35103 Rev. 9 - 2
5 of 15
www.diodes.com
May 2014
© Diodes Incorporated
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for AL9910A electronic component. |
Information | Total 15 Pages | |
Link URL | [ Copy URL to Clipboard ] | |
Download | [ AL9910A.PDF Datasheet ] |
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