http://www.www.datasheet4u.com

900,000+ Datasheet PDF Search and Download

Datasheet4U offers most rated semiconductors datasheets pdf




Diodes Semiconductor Electronic Components Datasheet

AL1794 Datasheet

Single/Dual/Triple/Quad-Channel Current-Ratio-Optimized LED Driver

No Preview Available !

AL1794 pdf
AL1791/1792/1793/1794
Description
Single/Dual/Triple/Quad-Channel Current-Ratio-Optimized LED Driver
with Analog and PWM Dimming
U-DFN-4030-14
Pin Assignments
The AL1791/1792/1793/1794 (or collectively AL179x), a single/multi-
channel LED driver with analog and PWM dimming control, is
targeted for Tunable White/Color Smart Lighting application. It serves
as the LED driving element along with AC-DC Power Conversion
Block and Intelligent wireless MCU as an emerging smart-connected
lighting system configuration. The key merits attribute to cost-
effectiveness, dimming performance, low standby power, ease of
system implementation, and great scalability. AL1791, AL1792,
AL1793, and AL1794 are 1-channel, 2-channel, 3-channel, and 4-
channel LED drivers, respectively.
Top View
(U-DFN4030-14)
EN 1
PWM4/GND 2
PWM3/GND 3
PWM2/GND 4
14 VIN
13 REF
12 FAULTB
11 LEDPG
The IC is available in U-DFN-4030-14 package.
PWM1 5
10 LED4/GND
LED1 6
9 LED3/GND
LED2/GND 7
8 GND
Features
Input Voltage Range: 6.5V to 30V
1/2/3/4-channel LED drivers: independent Analog or PWM
dimming control for each channel
Reference Current: Adjustable by an external reference resistor
Ratio-optimized currents for 4 independent LED channels
(AL1794 only): Suitable for Tunable White and Tunable Color
Low Standby Power: With EN pin
E-flicker free High Frequency PWM dimming with Deep Dimming
Capability: Support 10KHz down to 1.0%, 4KHz down to 0.4%,
or 1KHz down to 0.1%
Internal Protections: Under Voltage Lockout (UVLO), LED string
open/short protection
Over-temperature protection (OTP): Thermal shutdown and auto
thermal recovery
Fault Reporting: UVLO, OTP, Open, and Short LED Power
Good Reporting
Low system BOM cost
Ambient Temperature Range -40°C to +125°C
U-DFN4030-14: Available in “Green” Molding Compound (No Br,
Sb)
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Applications
1-Channel Dimmable Smart Connected Light (SCL)
Bulbs
2-Channel Tunable White SCL Bulbs
3-Channel Tunable White or Color SCL Bulbs
4-Channel Tunable White+Color SCL Bulbs
Smart Connected LED Tubes, Panel Lights, Troffers, and Ceiling
Lights
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.
AL1791/1792/1793/1794
Document number:37957 Rev. 3 - 2
1 of 18
www.diodes.com
September 2015
© Diodes Incorporated


Diodes Semiconductor Electronic Components Datasheet

AL1794 Datasheet

Single/Dual/Triple/Quad-Channel Current-Ratio-Optimized LED Driver

No Preview Available !

AL1794 pdf
Typical Applications Circuit
AL1791/1792/1793/1794
85~265Vac
VIN adjustment
signal
AP3983C
AC-DC
Conversion
VLED1
VIN
3.3V
RFAULT
RLEDPG
Wireless/Color
management
MCU
AL1791
FAULTB
LEDPG
EN
PWM1
2700K
X8
LED1
REF
GND
RSET
Figure 1. 1-Channel Dimmable White
85~265Vac
VIN adjustment
signal
AP3983C
AC-DC
Conversion
VLED1
VIN
3.3V
RFAULT
RLEDPG
Wireless/Color
management
MCU
AL1792
FAULTB
LEDPG
EN
PWM1
PWM2
2700K
X8
LED1
LED2
REF
GND
6500K
X8
RSET
Figure 2. 2-Channel Tunable White
VLED2
85~265Vac
VIN adjustment
signal
AP3983C
AC-DC
Conversion
VLED1
VIN
3.3V
RFAULT
RLEDPG
Wireless/Color
management
MCU
AL1794
FAULTB
LEDPG
EN
PWM1
PWM2
PWM3
PWM4
LED1
LED2
LED3
LED4
REF
GND
Figure 3. 3-Channel Tunable Color
G RB
RSET
AL1791/1792/1793/1794
Document number:37957 Rev. 3 - 2
2 of 18
www.diodes.com
September 2015
© Diodes Incorporated


Part Number AL1794
Description Single/Dual/Triple/Quad-Channel Current-Ratio-Optimized LED Driver
Maker Diodes
Total Page 18 Pages
PDF Download
AL1794 pdf
Download PDF File
AL1794 pdf
View for Mobile






Related Datasheet

1 AL1791 Single/Dual/Triple/Quad-Channel Current-Ratio-Optimized LED Driver Diodes
Diodes
AL1791 pdf
2 AL1792 Single/Dual/Triple/Quad-Channel Current-Ratio-Optimized LED Driver Diodes
Diodes
AL1792 pdf
3 AL1793 Single/Dual/Triple/Quad-Channel Current-Ratio-Optimized LED Driver Diodes
Diodes
AL1793 pdf
4 AL1794 Single/Dual/Triple/Quad-Channel Current-Ratio-Optimized LED Driver Diodes
Diodes
AL1794 pdf




Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

site map

webmaste! click here

contact us

Buy Components