DD331 Datasheet, PDF (2/11 Pages) Silicon Touch Technology Inc. – 4-Channel Flexible LED Pre-Driver

點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC.
DD331
DD331
4-Channel Flexible LED Pre-Driver
General Description
DD331 is a 4-channel LED pre-driver. It could provide constant-current to drive LED
with four N-type MOSFETs and external resistors. The four output enable terminals are
designed to drive LED with PWM functions. The maximum voltage and current in LED
string are determined by specification of N-type MOSFET.
Features
◆ Four independent LED output channels enable terminals, and current adjustment.
◆ Flexible in system design:
Maximum constant current output (ILED),
maximum sinking output voltage (VLED), and
minimum output voltage
are determined by the characteristic of N-type MOSFET
◆ Fast dimming frequency
(determined by gate capacitance of MOSFET)
◆ Supply voltage range: 5V ~ 18V
Applications
z LED architectural or entertainment lighting
z LED general or specialty illumination
z LED backlighting applications
Package Types
SOP16, SSOP16
High CONSTANT CURRENT LED DRIVERS
Version:A.002
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