T6316A/B Low-Dropout, Constant-Current FOR 路燈.CCTV.檯燈

GENERAL DESCRIPTION
The T6316A/B low-dropout bias supply forwhite LEDs is a high-performance alternativeto the simple ballast resistors used in conventional white LED designs. The T6316A uses a single resistor to set the bias current for four LEDs, which are matched to 3%. The T6316B build in internal resistor to set the bias current for four LED. The T6316A/B advantages over ballast resistors include significantly better LED to LED bias matching, much lower bias variation with supply voltage variation, significantly lower dropout voltage,
and in some applications, significantly improved efficiency. The T6316A/B is available in SOP-8 package and lead-free.

FEATURES
• Up to 400mA LED Bias Current
• 3% LED Current Matching
• Simple LED Brightness Control
• Low 0.05uA Shutdown Current
• 2.7V to 5V Supply Voltage Range
• SOP-8 Package and Lead-free
• VSET Resistor Option :
T6316A : External Resistor
T6316B : 20, 85, 100, 125, 150, 175, 200,
250, 300 and 350mA Output
Current Option by Internal
Resistor
• Build in Thermal Protect 160 °C

資料來源: 凱鈺科技