ISL6731AFBZ Allicdata Electronics
Allicdata Part #:

ISL6731AFBZ-ND

Manufacturer Part#:

ISL6731AFBZ

Price: $ 0.67
Product Category:

Integrated Circuits (ICs)

Manufacturer: Intersil
Short Description: IC CTRLR PFC BOOST 124KHZ 14SOIC
More Detail: PFC IC Continuous Conduction (CCM) 111kHz ~ 138kHz...
DataSheet: ISL6731AFBZ datasheetISL6731AFBZ Datasheet/PDF
Quantity: 1000
2000 +: $ 0.60386
Stock 1000Can Ship Immediately
$ 0.67
Specifications
Series: --
Packaging: Tube 
Part Status: Active
Mode: Continuous Conduction (CCM)
Frequency - Switching: 111kHz ~ 138kHz
Current - Startup: 106µA
Voltage - Supply: 15 V ~ 20 V
Operating Temperature: -40°C ~ 125°C
Mounting Type: Surface Mount
Package / Case: 14-SOIC (0.154", 3.90mm Width)
Supplier Device Package: 14-SOIC
Base Part Number: ISL6731
Description

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The ISL6731AFBZ is an advanced power factor correction (PFC)controller specifically designed to meet the requirements mandated by EN61000-3-2. The ISL6731AFBZ supports both continuous and discontinuous conduction mode operation with active peak current mode control. It implements a valley-fill technique for improved light load performance.

The ISL6731AFBZ also features low-start-up current, over-voltage protection and auto-restart, among additional features that enhance design flexibility and simplify the design process for PFC applications. The controller also incorporates an internal cable compensation module.

The power factor correction technique is employed by designers in order to contain the amount of current drawn from the utility grid. High power factor systems require a more complex approach to the power factor correction technique. A critical element in high power factor designs is to efficiently derive power from the source but also maintain a high degree of stability.

The ISL6731AFBZ is a dedicated integrated PFC controller device typically employed in offline power supplies ranging from 300–1000 watts. The device combines power factor correction, active current sensing, startup, fault protection and cable drop compensation into a single integrated package. The controller requires a single, inexpensive external shunt resistor.

The ISL6731AFBZ has an integrated 1.5mΩ (typical) power MOSFET driver that ensures stable and accurate performance over a wide temperature range. This eliminates the need for expensive additional drivers, allowing for a more cost-effective design solution.

The controller features a peak current limit (PCM) control loop for PFC circle control, allowing for a wide input range and ease of application. The PCM operation compensates the root sum of errors (RSE) by adjusting the peak current in response to power factor error signal. This results in a rock-solid overall system operation with no load overshoot and high power factor performance.

The ISL6731AFBZ device integrates a variety of diagnostic features. These built-in features provide highly accurate current measurement as well as overcurrent, overvoltage and overtemperature protection. The ISL6731AFBZ can be configured in a wide range of applications that require a power factor correction. These applications include an auxiliary power factor correction (APFC) circuit in LED lighting, LED-based backlight applications, and various AC/DC power adapters.

The circuit diagram for the ISL6731AFBZ is a mathematical model for the power factor control algorithm for peak current mode control with active valley-fill based on the high frequency injection technique. This self-contained internal algorithm enables the device to respond quickly and with high accuracy to changing input power conditions.

The ISL6731AFBZ is a versatile device ideally suited for a wide range of power factor correction applications in consumer, industrial and communications products. The device combines high accuracy, low cost and small size, making it an excellent choice for designers who need to develop cost-effective, high-performance power factor corrected solutions.

The specific data is subject to PDF, and the above content is for reference

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