AL1783
60V THREE INDEPENDENT PWM CHANNEL LINEAR LED DRIVER
Description
Pin Assignments
The AL1783 is a three-channel linear LED driver with independent
PWM dimming and current-setting controls for each channel. The
device is designed to target connected, commercial, industrial, and
RGB LED lighting applications.
Top View
The key merits of the AL1783 are attributed to a compact solution,
eBOM cost effectiveness, excellent PWM dimming performance, low
standby power, ease of system implementation, and up to 60V input
and LED pin operating voltage.
The AL1783 is available in the TSSOP-16EP (Type DX) package to
minimize PCB space and external component count.
VIN
1
16
REF1
NC
2
15
REF2
PWM1
3
14
REF3
PWM2
4
13
FAULTB
PWM3
5
12
NC
GND
6
11
LED1
GND
7
10
LED2
GND
8
9
LED3
EP
(TSSOP-16EP (Type DX))
Features
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Applications
Wide Input Voltage Range from 6.5V to 60V
-40°C to +105°C Ambient Temperature Operation Range
±4% LED Current Tolerance @125mA
PWM Dimming Control for Each Channel
LED Current Adjustable for Each Channel by External Ref pins
Automatic Enter and Exit Standby Power Mode
Fast PWM Dimming Capable to eliminate e-Flicker
Robust Protections: Under Voltage Lock-out (UVLO), Over
Voltage Protection (OVP), LED String Open/Short Protection
(LED Short/Open)
Over Temperature Protection (OTP): Thermal Fold-back,
Thermal Shut-down, and Automatic Thermal Recovery
Fault Reporting: UVLO, OTP, LED Open and Short
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-Q100/101/200, 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:
AL1783
RGB Lighting
Horticulture Lighting
Architecture Lighting
Industrial Lighting
Commercial Lighting, i.e. Ceiling and Panel Light
Connected Lighting
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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