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| Product Description | ||
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Name:Utsource electronic components SG6961SZ | |
| Brand:Infilled | ||
| Specs:Unfilled | ||
| Price:0.48/pcs | ||
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
https://www.utsource.net/ic-datasheet/SG6961SZ-1883740.html
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