Microchip MIC2298 Manual

Microchip Ikke kategoriseret MIC2298

Læs gratis den danske manual til Microchip MIC2298 (26 sider) i kategorien Ikke kategoriseret. Denne vejledning er vurderet som hjælpsom af 13 personer og har en gennemsnitlig bedømmelse på 4.5 stjerner ud af 7 anmeldelser. Har du et spørgsmål om Microchip MIC2298, eller vil du spørge andre brugere om produktet?

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 2023 Microchip Technology Inc. DS20006794A-page 1

MIC2298

Features

• 3.5A Minimum Switch Current Delivers at Least

7W of Output Power Over-Temperature

• 200 mV ±10% Feedback Voltage

• 2.5V to 10V Input Voltage

• Output Voltage up to 30V (Max)

• 12-Lead 3 mm × 3 mm Leadless VDFN Package

• Available Output Over-Voltage Protection (OVP)

• 1 MHz Operation

• Programmable Output Current

• <1% Line Regulation

• 1 μA Shutdown Current

• Over Temperature Protection

• Externally Programmable Soft-Start

• Under-Voltage Lockout (UVLO)

• –40°C to +125°C Junction Temperature Range

Applications

• Cell phones

• PDAs

• Digital cameras

• White LED flashlights

General Description

The MIC2298 is a high power boost-switching regulator

that is optimized for constant-current control. The

MIC2298 is capable of driving up to 2 series 1A white

LED for photoflash, flashlight, and other applications.

The feedback voltage is only 200 mV, minimizing

ballast power dissipation in constant-current control

applications for improved operating efficiency.

The MIC2298 has a brightness pin that allows for a

programmable torch mode as well full flash with a

single pin when driving high current LEDs.

The MIC2298 implements a constant frequency 1 MHz

PWM control scheme to make the smallest possible

design.

The 2.5V to 10V input voltage range of MIC2298 allows

direct operation from 1- and 2-cell Li Ion as well as 3-

to 6-cell NiCad/NiMH/Alkaline battery sources.

Maximum battery life is assured with a low 1 μA

shutdown current.

The MIC2298 is available in a low profile 12-lead 3 mm

× 3 mm VDFN package.

Package Types

MIC2298

3 mm × 3 mm 12-Lead VDFN

(Top View)

3.5A Minimum, 1 MHz Boost High Brightness White LED Driver

MIC2298

DS20006794A-page 2  2023 Microchip Technology Inc.

Typical Application Circuit

Functional Block Diagram

MIC2298

High Power White LED Driver

MIC2298

Produkt Specifikationer

Mærke:	Microchip
Kategori:	Ikke kategoriseret
Model:	MIC2298

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