ISL6721AARZ Intersil Corporation, ISL6721AARZ Datasheet

ISL6721AARZ

Manufacturer Part Number

ISL6721AARZ

Description

16 LEAD QFN 3X3/260 DEGREE CELSIUS/FLEXIBLE SINGLE ENDED CURRENT MODE PWM C

Manufacturer

Intersil Corporation

Datasheet

1.ISL6721A.pdf (24 pages)

Specifications of ISL6721AARZ

Pack_quantity

100

Comm_code

85423990

Lead_time

Current page: 1 of 24
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Flexible Single-ended Current Mode PWM

Controller

The ISL6721A is a low power, single-ended pulse width

modulating (PWM) current mode controller designed for a

wide range of DC/DC conversion applications including

boost, flyback, and isolated output configurations. Peak

current mode control effectively handles power transients

and provides inherent overcurrent protection. Other features

include a low power mode where the supply current drops to

less than 200µA during overvoltage and overcurrent

shutdown faults. It differs from the ISL6721 in that the UVLO

and UV thresholds have been modified.

This advanced BiCMOS design features low operating

current, adjustable operating frequency up to 1MHz,

adjustable soft-start, and a bidirectional SYNC signal that

allows the oscillator to be locked to an external clock for

noise sensitive applications.

Applications

• Telecom and Datacom Power

• Wireless Base Station Power

• File Server Power

• Industrial Power Systems

• Isolated Buck and Flyback Regulators

• Boost Regulators

Pinouts

ISENSE

SLOPE

SYNC

GATE

RTCT

ISET

(16 LD TSSOP)

ISL6721A

TOP VIEW

Data Sheet

PGND

VCC

VREF

LGND

COMP

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

Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.

Features

• 1A MOSFET Gate Driver

• 100µA Startup Current

• Fast Transient Response with Peak Current Mode Control

• Adjustable Switching Frequency up to 1MHz

• Bidirectional Synchronization

• Low Power Disable Mode

• Delayed Restart from OV and OC Shutdown Faults

• Adjustable Slope Compensation

• Adjustable Soft-start

• Adjustable Overcurrent Shutdown Delay

• Adjustable UV and OV Monitors

• Leading Edge Blanking

• Integrated Thermal Shutdown

• 1% Tolerance Voltage Reference

• Pb-Free (RoHS Compliant)

August 23, 2011

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

SLOPE

SYNC

(16 LD QFN)

ISL6721A

TOP VIEW

ISL6721A

VCC

VREF

LGND

FN6797.0

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