ISL8840A INTERSIL [Intersil Corporation], ISL8840A Datasheet

ISL8840A

Manufacturer Part Number

ISL8840A

Description

High Performance Industry Standard Single-Ended Current Mode PWM Controller

Manufacturer

INTERSIL [Intersil Corporation]

Datasheet

1.ISL8840A.pdf (15 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

ISL8840AAUZ

Manufacturer:

INTERSIL

Quantity:

20 000

Current page: 1 of 15
Download datasheet (303Kb)

High Performance Industry Standard

Single-Ended Current Mode PWM

Controller

The ISL884xA is a high performance drop-in replacement for

the popular 28C4x and 18C4x PWM controllers suitable for a

wide range of power conversion applications including

boost, flyback, and isolated output configurations. Its fast

signal propagation and output switching characteristics

make this an ideal product for existing and new designs.

Features include 30V operation, low operating current, 90μA

start-up current, adjustable operating frequency to 2MHz,

and high peak current drive capability with 20ns rise and fall

times.

Pinout

ISL8840A, ISL8841A, ISL8842A, ISL8843A, ISL8844A, ISL8845A

PART NUMBER

ISL8840A

ISL8841A

ISL8842A

ISL8843A

ISL8844A

ISL8845A

COMP

RTCT

(8 LD SOIC, MSOP)

RISING UVLO

TOP VIEW

14.4V

8.4V

7.0

Data Sheet

MAX. DUTY CYCLE

VREF

VDD

OUT

GND

100%

50%

1-888-INTERSIL or 1-888-468-3774

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

ISL8840A, ISL8841A, ISL8842A,

ISL8843A, ISL8844A, ISL8845A

Features

• 1A MOSFET gate driver

• 90μA start-up current, 125μA maximum

• 35ns propagation delay current sense to output

• Fast transient response with peak current mode control

• 30V operation

• Adjustable switching frequency to 2MHz

• 20ns rise and fall times with 1nF output load

• Trimmed timing capacitor discharge current for accurate

• 1.5MHz bandwidth error amplifier

• Tight tolerance voltage reference over line, load and

• ±3% current limit threshold

• Pb-free plus anneal available and ELV, WEEE, RoHS

Applications

• Telecom and datacom power

• Wireless base station power

• File server power

• Industrial power systems

• PC power supplies

• Isolated buck and flyback regulators

• Boost regulators

deadtime/maximum duty cycle control

temperature

Compliant

All other trademarks mentioned are the property of their respective owners.

April 18, 2007

Intersil (and design) is a registered trademark of Intersil Americas Inc.

FN6320.3

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