Anterwell Technology Ltd.

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Power Rectifier Diode Switching

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Anterwell Technology Ltd.
City:shenzhen
Province/State:guangdong
Country/Region:china
Contact Person:MissSharon Yang
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Power Rectifier Diode Switching

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Brand Name :ONSEMI
Model Number :NCP3066DR2G
Certification :Original Factory Pack
Place of Origin :Morocco
MOQ :100pcs
Price :Negotiation
Payment Terms :T/T, Western Union,PayPal
Supply Ability :6000PCS
Delivery Time :1 Day
Packaging Details :please contact me for details
Input Voltage Range :from 3.0 V to 40 V
Integrated :1.5 A Switch
Low Feedback Voltage :235 mV
Frequency of Operation :250 kHz
Pb−Free OR NOT :Pb−Free Devices
Current Limit :Cycle−by−Cycle
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Up to 1.5 A Constant Power Rectifier Diode Switching

Current Switching

Regulator for LEDs with

ON/OFF Function

The NCP3066 is a monolithic switching regulator designed to deliver constant current for powering high brightness LEDs. The device has a very low feedback voltage of 235 mV (nominal) which is used to regulate the average current of the LED string. In addition, the NCP3066 has a wide input voltage up to 40 V to allow it to operate from a 12 Vac or a 12−36 Vdc supply, commonly used for lighting applications as well as unregulated supplies such as rechargeable batteries. The NCP3066 switching regulator can be configured in Step−Down (Buck), Step−Up (Boost) and Voltage−Inverting topologies with a minimum number of external components. The ON/OFF pin provides PWM dimming capability or a low power shutdown mode.

Features

• Integrated 1.5 A Switch

• Input Voltage Range from 3.0 V to 40 V

• Logic Level Shutdown Capability

• Low Feedback Voltage of 235 mV

• Cycle−by−Cycle Current Limit

• No Control Loop Compensation Required

• Frequency of Operation Adjustable up to 250 kHz

• Analog and Digital PWM Dimming Capability

• Internal Thermal Shutdown with Hysteresis

• NCV Prefix for Automotive and Other Applications Requiring Site and Control Changes

• These are Pb−Free Devices

Applications

• Automotive and Marine Lighting

• Constant Current Source, High Brightness LED Driver

• Low Voltage and Landscape Lighting

Power Rectifier Diode Switching

NCP3066, NCV3066

Power Rectifier Diode Switching

NCP3066, NCV3066

Power Rectifier Diode SwitchingFigure 5. Oscillator Frequency Figure 6. Oscillator Frequency vs.

Supply vs. Timing Capacitor Voltage

Power Rectifier Diode Switching

INTRODUCTION

The NCP3066 is a monolithic power switching regulator optimized for LED Driver applications. Its flexible architecture enables the system designer to directly implement step−up, step−down, and voltage−inverting converters with a minimum number of external components for driving LEDs. A representative block diagram is shown in Figure 3

comparator value, the output switch cycle is inhibited. When the load current causes the output voltage to fall below the nominal value feedback comparator enables switching immediately. Under these conditions, the output switch conduction can be enabled for a partial oscillator cycle, a partial cycle plus a complete cycle, multiple cycles, or a partial cycle plus multiple cycles.

Power Rectifier Diode Switching

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