AL5892
OFFLINE DIMMABLE LINEAR LED DRIVER
NEW PRODUCT
Description
Pin Assignments
The AL5892 is an offline TRIAC dimmable linear LED driver with high
integration of constant current control and smart bleeder operation. With
the built-in 350V main power MOSFET and 500V bleeder MOSFET, the
AL5892 offers users to design a TRIAC dimmable LED driver with
extremely few external components and minimized system BOM cost.
Because of the linear operation of the IC, the AL5892 LED driver is
compliant with EMI standards without adding any EMI components. The
AL5892 is optimized to work at 120VAC input mains voltage.
(Top View)
The AL5892 has abundant of protection features, such as LED short
protection (OSP), thermal foldback protection (TFP) and over
temperature shutdown protection (OTP).
1
GND
2
EP
With an innovative efficiency compensation method, the AL5892
operates up to 85% efficiency with driving a single high-voltage LED
chain.
The AL5892 detects TRIAC dimmer and controls the smart bleeder to
turn on and off, thus it offers the LED driver good dimmer compatibility
with both leading edge and trailing edge dimmers. The AL5892 also
converts the dimmer signal to optimize the dimming curve to be
compliant with NEMA SSL7.
VBUS
8
DIMD
7
COMP
BLD
3
6
CS
PLED
4
5
VCC
SO-8EP (Type TH)
Applications
LED Lamps
Retro Fit TRIAC Dimming
LED Power Modules
The AL5892 is available in SO-8EP (Type TH) package to enhance the
thermal reliability of the LED driver.
Features
Integrated 350V Main MOSFET and 500V Bleeder MOSFET
Low Operation Current: 300µA
Tight Current Sense Tolerance: 3%
Output Current Programmable up to 75mA
Wide Range of Dimmer Compatibility
Dimming Curve Compliant to NEMA SSL7
Internal Protections
LED Open/Short Protection (OSP)
Thermal Foldback Protection (TFP)
Over Temperature Shutdown Protection (OTP)
Power Factor >0.7
Efficiency up to 85%
SO-8EP (Type TH) Package
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
For automotive applications requiring specific change control
(i.e. parts qualified to AEC-Q100, PPAP capable, and
manufactured in IATF 16949 certified facilities), please
contact us or your local Diodes representative.
https://www.diodes.com/quality/product-definitions/
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
2. See https://www.diodes.com/quality/lead-free/ 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
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