Controller archives - Page 56 of 500

A current mode PWM (Pulse-Width Modulation) controller is a type of electronic control circuit used in various applications, especially in power electronics and switch-mode power supplies (SMPS). This controller regulates the output voltage or current by adjusting the duty cycle of a PWM signal based on the feedback from the load current.

Part Number: LD7523GS

Function: Smart Green-Mode PWM Controller

Package: SOP 8 Pin Type

Manufacturer: Leadtrend Technology ( www.leadtrend.com.tw )

Images: LD7523GS pdf controller

Description

The LD7523GS is a low startup current, current mode PWM controller with green-mode power-saving operation. The SOP-8/DIP-8 package integrated functions such as the leading- edge blanking of the current sensing, internal slope compensation, line compensation, and several protection features. The protection functions include cycle-by-cycle current limit, OVP, OLP, and brownout protection. It provides the users a high efficiency, low external component counts solution for AC/DC power applications.

Features

1. High-Voltage CMOS Process with Excellent ESD protection

2. Very Low Startup Current (< 35μA)

3. Current Mode Control

4. Non-audible-noise Green Mode Control

5. UVLO (Under Voltage Lockout)

6. LEB (Leading-Edge Blanking) on CS Pin

7. Internal Slope Compensation

8. Programmable Line Compensation

Pinouts:

LD7523GS pinout datasheet

Applications:

1. Switching AC/DC Adaptor and Battery Charger

2. Open Frame Switching Power Supply

3. LCD Monitor/TV Power

LD7523GS PDF Datasheet

Description

PN547 is a full feature NFC controller designed for integration in mobile devices and devices compliant with NFC standards.

NFC Controller stands for Near Field Communication Controller. NFC is a short-range wireless communication technology that enables devices to establish communication and exchange data when they are in close proximity (within a few centimeters) to each other.

An NFC Controller is an integrated circuit (IC) or chip that handles the communication and protocol management for NFC-enabled devices. It serves as the core component responsible for initiating, managing, and executing NFC operations.

Features:

1. A low PCB footprint and a reduced external Bill of Material by enabling as unique feature the capability to achieve RF standards ( NFC Forum, EMVco card ) with small form factor antenna.

2. An optimized architecture for low-power consumption in different modes ( Standby, low-power polling loop )

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