PWM

AP1510 Datasheet PDF – Step-down Switching Regulator

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Part Number: AP1510

Function: PWM CONTROL 3A STEP-DOWN CONVERTER

Package: SO-8 Pin Type

Manufacturer: Diodes Incorporated.

Image:

AP1510 datasheet

 

Description

The AP1510 consists of step-down switching regulator with PWM control. These devices include a reference voltage source, oscillation circuit, error amplifier and internal PMOS.

The AP1510 provides low-ripple power, high efficiency and excellent transient characteristics. The PWM control circuit is able to vary the duty ratio linearly from 0 up to 100%. This converter also contains an error amplifier circuit. An enable function, an over current protection
and a short circuit protection are built inside, when OCP or SCP happens, the operation frequency will be reduced from 300kHz to 30kHz. Also, an internal compensation block is built in to minimum external component count.

Pinouts:

AP1510 pinout

 

Features

1. Input Voltage: 3.6V to 23V

2. Output Voltage: 0.8V to VCC

3. Duty Ratio: 0% to 100% PWM Control

4. Oscillation Frequency: 300kHz Typ

5. Current Limit, Enable Function

6. Thermal Shutdown Function

7. Built-in Internal SW P-channel MOS

8. Totally Lead-Free & Fully RoHS Compliant

9. Halogen and Antimony Free.“Green” Device

 

Applications

1. Cellular Phones

2. PC Motherboard

3. LCD Monitor

4. Graphic Card

5. DVD-Video Player

6. Telecom Equipment

7. ADSL Modem

8. Printer and Other Peripheral Equipment

 

 

Other data sheets are available within the file: AP1510SG-13, AP1510SL-13

AP1510 Datasheet PDF Download


AP1510 pdf

OZ9976 Datasheet PDF – PWM controller – OZMICRO

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Part Number: OZ9976

Function: PWM controller, Offline LCD TV Controller

Package: SOP16 Type

Manufacturer: OZMICRO

Image :
OZ9976 datasheet controller

Description

The OZ9976 is a high efficiency, Pulse Width Modulation (PWM) controller designed for off line LCD backlight application. It achieves high efficiency power conversion with minimal switching loss using Zero Current Switching (ZCS) technology. 0Z9976 applications can operate under fixed or variable operating frequency with ZCS technology.

A PWM (Pulse Width Modulation) controller is an electronic device or circuit that generates and controls pulse-width modulated signals. PWM is a technique used to control the average power delivered to a load by rapidly switching the power on and off at a fixed frequency while varying the width of the pulses.

The primary purpose of a PWM controller is to regulate the power or voltage applied to a load, typically for controlling the speed, position, intensity, or other characteristics of a device or system. It is widely used in various applications, including motor control, LED dimming, power supplies, and audio amplifiers.

The minimum operating frequency can be set by either an external RC network or
operate in self-oscillating mode. The intelligent operating frequency management
circuitry extends Cold Cathode Fluorescent Lamp (CCFL) lifetime and offers design flexibility.

Pinout

OZ9976 pinout

Features

• Offline Inverter Controller (IPB)
• Supports both fixed and variable frequency applications
• Half-bridge or push-pull topology
• Directly drives pulse transformers
• Dedicated pins for Analog and LPWM dimming
• User-defined minimum operating frequency
• User-defined striking frequency range
• Open-load, over-voltage, and under-voltage lockout protection
• User-defined striking and shutdown delay timers
• Soft start function

 

OZ9976 Datasheet PDF


OZ9976GN pdf

Other data sheets are available within the file: OZ9976GN

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