ISL6740, ISL6741

Datasheet preview, take a look at Datasheets before downloading (Data Sheet is available on manufacturer site)

ISL6740, ISL6741
Data Sheet July 13, 2007 FN9111.4

Flexible Double Ended Voltage and Current Mode PWM Controllers
The ISL6740, ISL6741 family of adjustable frequency, low power, pulse width modulating (PWM) voltage mode (ISL6740) and current mode (ISL6741) controllers is designed for a wide range of power conversion applications using half-bridge, full bridge, and push-pull configurations. These controllers provide an extremely flexible oscillator that allows precise control of frequency, duty cycle, and deadtime. This advanced BiCMOS design features low operating current, adjustable switching frequency up to 1MHz, adjustable soft-start, internal and external over-temperature protection, fault annunciation, and a bidirectional SYNC signal that allows the oscillator to be locked to paralleled units or to an external clock for noise sensitive applications.

Features
Precision Duty Cycle and Deadtime Control 95A Startup Current Adjustable Delayed Overcurrent Shutdown and Re-start (ISL6740) Adjustable Short Circuit Shutdown and Re-start Adjustable Oscillator Frequency Up to 2MHz Bidirectional Synchronization Inhibit Signal Internal Over-Temperature Protection System Over-Temperature Protection Using a Thermistor or Sensor Adjustable Soft-start Adjustable Input Undervoltage Lockout
PKG. DWG. # M16.15 M16.15

Ordering Information
PART NUMBER ISL6740IB PART MARKING ISL6740IB TEMP. RANGE ( C) -40 to +105 -40 to +105 -40 to +105 -40 to +105 -40 to +105 -40 to +105 -40 to +105 -40 to +105 PACKAGE 16 Ld SOIC 16 Ld SOIC (Pb-free)

Fault Signal Tight Tolerance Voltage Reference Over Line, Load, and Temperature Pb-Free Plus Anneal Available (RoHS Compliant)

ISL6740IBZ 6740IBZ (See Note) ISL6740IV ISL67 40IV

16 Ld TSSOP M16.173 16 Ld TSSOP M16.173 (Pb-free) 16 Ld SOIC 16 Ld SOIC (Pb-free) M16.15 M16.15

Applications
Telecom and Datacom Power Wireless Base Station Power File Server Power Industrial Power Systems DC Transformers and Buss Regulators

ISL6740IVZ ISL67 40IVZ (See Note) ISL6741IB ISL6741IB

ISL6741IBZ 6741IBZ (See Note) ISL6741IV ISL67 41IV

16 Ld TSSOP M16.173 16 Ld TSSOP M16.173 (Pb-free)

ISL6741IVZ ISL67 41IVZ (See Note)

Pinout
ISL6740, ISL6741 (16 LD SOIC, 16 LD TSSOP) TOP VIEW
OUTA 1 GND 2 SCSET 3 CT 4 16 OUTB 15 VREF 14 VDD 13 RTD 12 RTC 11 OTS 10 FAULT 9 SS

Add -T suffix to part number for tape and reel packaging NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. x= 0 1 CONTROL MODE Voltage Mode Current Mode

SYNC 5 CS 6 VERROR 7 UV 8

1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2003, 2004, 2007. All Rights Reserved All other trademarks mentioned are the property of their respective owners.

ISL6740 Datasheet intersil Download PDF

Add this permalink to your bookmarks for future download of ISL6740 datasheet

Permalink: http://datasheet.emcelettronica.com/intersil/ISL6740

ISL6740 DATASHEET