In order to meet the critical needs of the high brightness (HB) LED market, Fairchild Semiconductor has introduced the primary side regulation (PSR) pulse width modulation (PWM) controllers FAN100 and FSEZ1016A, which simplify design. Reduce board space and provide important performance benefits. The FSEZ1016A is an EZSWITCHTM; PSR PWM controller with a primary-side regulated PWM controller and a power MOSFET, while the FAN100 is a primary-side regulated PWM controller. Through this integration, these controllers achieve the most accurate constant current (CC) control with their built-in proprietary TRUECURRENTTM technology and tight constant voltage (CV) range without the need for Use the feedback circuit on the secondary side. Since the constant current over a wide voltage range is tightened, the same circuit can be used for a different number of strings of LEDs, increasing design flexibility, reducing time to market, and extending the life of HB LEDs. Because of the high degree of integration of these PSR PWM controllers, board space can be saved to match the growing trend of bulb size.
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FAN100 and FSEZ1016A sample map
The FSEZ1016A and FAN100 feature a proprietary power-saving mode that provides turn-off time modulation to linearly reduce the PWM frequency under light load conditions. In addition, they can minimize power consumption by reducing the secondary side feedback circuits and components (standby power <0.15W without load). All of these energy-saving features are essential to enable power supplies to meet stringent energy efficiency regulations. In addition, these PSR PWM controllers provide robust protection features such as undervoltage lockout (UVLO), overvoltage protection (OVP), and overtemperature protection (OTP).
Fairchild's PSR PWM controllers enhance their broad portfolio of power-efficient electronics for power-sensitive applications such as power adapters, power supplies, lighting, computing, industrial control and home appliances. Maximize energy savings.
FAN100 and FSEZ1016A sample map
The FSEZ1016A and FAN100 feature a proprietary power-saving mode that provides turn-off time modulation to linearly reduce the PWM frequency under light load conditions. In addition, they can minimize power consumption by reducing the secondary side feedback circuits and components (standby power <0.15W without load). All of these energy-saving features are essential to enable power supplies to meet stringent energy efficiency regulations. In addition, these PSR PWM controllers provide robust protection features such as undervoltage lockout (UVLO), overvoltage protection (OVP), and overtemperature protection (OTP).
Fairchild's PSR PWM controllers enhance their broad portfolio of power-efficient electronics for power-sensitive applications such as power adapters, power supplies, lighting, computing, industrial control and home appliances. Maximize energy savings.
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