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PT6909 is a fixed frequency PWM controller IC designed to control high brightness LED driver using a single-stage PFC boost-buck topology. It can achieve a well power factor and a higher dc-bus voltage. This topology allows reducing the filter capacitors and using
non-electrolytic capacitors to improve reliability. The PT6909 uses open-loop peak current control technique eliminates a need for loop compensation, limits the input inrush current, and is inherently protected from input under-voltage condition.
PT6909 provides a low frequency PWM dimming input that can accept an external control signal with a duty cycle of 0-100% and a frequency of between 100Hz and a few KHz. The PWM dimming capability enables PT6909 phase control solutions that can work with
standard TRIAC.
FEATURES
• Simple power factor correction Integrated
• Low start-up current
• 8V to 12V input range
• Constant-current driver
• Programmable fixed frequency operation
• Input and output current sensing
• Input current limit
• Boost circuit over-voltage protection(LED open protection)
• Input voltage limitation
• Low Input current harmonic distortion
• PWM Low-frequency dimming and phase Dimming compatible
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| [ 연락처 정보 ] |
 Company |
Princeton Technology Corp. |
| Address |
Taipei Taiwan 2F, No.233-1, Baociao Rd, Sindian, Taipei 23145, Taiwan
(우:23145) 대만 |
| Phone |
886 - 2 - 29162151 |
| Fax |
886 - 2 - 29174598 |
| Homepage |
http://www.princeton.com.tw |
| Contact |
Peili / 대리 |
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