Product Information

AS3812A-ZQFT

AS3812A-ZQFT electronic component of Dialog Semiconductor

Datasheet
LED Lighting Drivers 16-Channel LED Driver for Local Dimming
Manufacturer: Dialog Semiconductor
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges



Price (USD)

4000: USD 1.725 ea
Line Total: USD 6900

0 - Global Stock
MOQ: 4000  Multiples: 4000
Pack Size: 4000

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Ships to you between Mon. 03 Jun to Wed. 05 Jun

MOQ : 4000
Multiples : 4000

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AS3812A-ZQFT
Dialog Semiconductor

4000 : USD 1.656
8000 : USD 1.62

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Additional Infomation About Product

AS3812 16-Channel LED Driver for Local Dimming 1 Description The AS3812 is the next generation of fully integrated 16-channel LED backlight driver. LED current set resistors are integrated in order to save external components as well as reducing the pin-count of the IC while maintaining a very high absolute LED current accuracy of 1%. The speed of the current regulation has been increased to support minimum PWM on times down to 1s.12-bit fully flexible PWM generators per channel and 10-bit LED current resolution can be used to adjust the brightness of the LED strings. Dialogs patented digital enhanced DC/DC feedback function is regulating any external SMPS to the best suitable output voltage needs of the LED strings to minimize power dissipation. Dialogs patented dimming method allows synchronizing the PWM generators with V/HSYNC of the video SOC/GPU. The device can be programmed via SPI and daisy chain connection to cascade many devices easily. 2 Features Universally compatible DC/DC feedback architecture 16 fully flexible, 12-bit PWM generators provide with digital enhancement configurable via SPI optimium power savings through local dimming Fully protected with integrated features x Period, high time, delay, reverse functions x Short/Open LED detection Global 10-bit IDAC gives 1% LED current accuracy for highest brightness uniformity x Over-temperature shutdown Integrated current sink FETs and current set resistors x Register lock/unlock Lower BOM cost Minimum PWM on-time of 1 ms enables high VSYNC and HSYNC inputs and integrated digital PLL contrast ratios allow synchronization with TV frame 3 Applications Ultra-HD/4K TVs LCD Monitors Notebooks/medium-small size displays 19-Dec-2018 Product Summary Rev. 1.01 www.dialog-semiconductor.com 1 of 8 2018 Dialog SemiconductorAS3812 16-Channel LED Driver for Local Dimming V IN VLED Power Supply e.g:DCDC step up/down 16 output channels CURR15 CURR16 CURR1 CURR2 VDD VDD 4.7F 16 x precision current sink xRES HSYNC xFault 16 x PWM generators VSYNC SDO SDI FB1 SCLK DCDC SPI LDO AS3812 feedback xCS FB2 V3 2 VSSA VSSA VSSP EPAD 2.2F Figure 3.1 : AS3812 Typical Application (With CURR15 and CURR16 connected together to show increased LED string current capability by paralleling outputs) 19-Dec-2018 Product Summary Rev. 1.01 www.dialog-semiconductor.com 2 of 8 2018 Dialog Semiconductor Dynamic power control Dynamic power control

HS Compliance

Tariff Desc

8542.39.23 No ..Linear/analogue and peripheral integrated circuits, timers, voltage regulators, A/D and D/A converters, telecommunication and modem integrated circuits, other than board level products Free

Electronic integrated circuits- Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits

Dialog Semiconductor may also be referenced as

ADESTO
Adesto Technologies
Dialog Semiconductor GmbH
DLG
Echelon / Adesto
Echelon Corporation

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