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Description
Power Factor Controller
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1. Description
The SG6961 is an 8-pin boundary mode PFC controller IC intended for controlling PFC pre-regulators. The SG6961
provides a controlled on-time to regulate the output DC voltage and achieve natural power factor correction. The
maximum on-time of the external switch is programmable to ensure safe operation during AC brownouts. An
innovative multi-vector error amplifier is built in to provide rapid transient response and precise output voltage
clamping. A built-in circuit disables the controller if the output feedback loop is opened. The start-up current is
lower than 20μA and the operating current is under 4.5mA. The supply voltage can be up to 20V, maximizing
application flexibility.
2. Features
>Boundary Mode PFC Controller
>Low Input Current THD
>Controlled On-Time PWM
>Zero-Current Detection
>Cycle-by-Cycle Current Limiting
>Leading-Edge Blanking Instead of RC Filtering
>Low Start-up Current (10μA Typical)
>Low Operating Current (4.5mA Typical)
>Feedback Open-Loop Protection
>Programmable Maximum On-Time (MOT)
>Output Over-Voltage Clamping Protection
>Clamped Gate Output Voltage 16.5V
Preview of the first 3 pages of the data sheet
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241 buyer reviews from United Kingdom
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Length of registration:2 years
Your service is invaluable. I was able to save a repair by ordering through your company. Thank you so much.
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11/23/2022
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Warranty
All UTSOURCE purchases have a 60 days money back return policy, plus a 90 days UTSOURCE warranty against any manufacturing defects.This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation.
SG6961SZ
SG6961SZ has several brands around the world that may have alternate names for SG6961SZ due to regional differences or acquisition. SG6961SZ may also be known as the following names:
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