ルネサス エレクトロニクス株式会社 (Renesas Electronics Corporation)
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ISL6745A

アクティブ

Improved Bridge Controller with Precision Dead Time Control

ご購入
ISL6745A Datasheet

概要

The ISL6745A is a low-cost, double-ended, voltage-mode PWM controller designed for half-bridge and full-bridge power supplies and line-regulated bus converters. It provides precise control of switching frequency, adjustable soft-start, and overcurrent shutdown. In addition, the ISL6745A allows for accurate adjustment of MOSFET non-overlap time (dead time) with dead times as low as 35ns, allowing power engineers to optimize the efficiency of open-loop bus converters. The ISL6745A also includes a control voltage input for closed-loop PWM and line voltage feed-forward functions. The ISL6745A is identical to the ISL6745, but is optimized for higher noise environments. Low start-up and operating currents allow for easy biasing in both AC/DC and DC/DC applications. This advanced BiCMOS design also features adjustable switching frequency up to 1MHz, 1A FET drivers, and very low propagation delays for a fast response to overcurrent faults. The ISL6745A is available in a space-saving 10 Ld MSOP package and is assured to meet rated specifications across a wide -40 °C to +105 °C temperature range.

ISL6745A Functional Diagram
ISL6745A Functional Diagram
  • Precision duty cycle and deadtime control
  • 100µA start-up current
  • Adjustable delayed overcurrent shutdown and restart
  • Adjustable oscillator frequency up to 2MHz
  • 1A MOSFET gate drivers
  • Adjustable soft-start
  • Internal over-temperature protection
  • 35ns control to output propagation delay
  • Small size and minimal external component count
  • Input undervoltage protection
  • Pb-free (RoHS compliant)
  • Half-bridge converters
  • Full-bridge converters
  • Line-regulated bus converters
  • AC/DC power supplies
  • Telecom, datacom and file server power

ドキュメント

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分類 タイトル 日時
データシート
ISL6745A Datasheet
PDF 632 KB
製品変更通知
PCN22018 - MSL Re-Classification for listed Renesas MSOP and nSOIC products
PDF 178 KB
製品変更通知
PCN15046 - Wafer Fabrication Site Change for Listed Intersil Products - Global Foundry P6 Process transfer to Palm Bay - Phase II
PDF 398 KB
アプリケーションノート
AN1387: White LED Driver Circuits for Off-Line Applications using Standard PWM Controllers
PDF 746 KB
アプリケーションノート
AN1681: Grounding Techniques
PDF 509 KB
アプリケーションノート
AN1684: Nonideality of Ground
PDF 397 KB
6件

設計・開発

ISL6745ALEVAL3Z White LED Driver Eval Board

ISL6745ALEVAL3Z

Evaluation
詳しくはこちら

TRIAC Dimmer Compatible High Brightness White LED Driver Evaluation Board

The ISL6745ALEVAL3Z is a low cost, high performance LED driver with power factor correction (PFC) function that is compatible with widely used wall dimmers. It uses...

主要ドキュメント:
ISL6745ALEVAL3Z User Guide
ISL6745EVAL1Z Half Bridge Converter Evaluation Board

ISL6745EVAL1Z

Evaluation
詳しくはこちら

48V to 12V 120W Half-Bridge Power Supply Evaluation Board

The ISL6745EVAL1Z evaluation board utilizes Renesas' ISL6745A double-ended voltage-mode PWM controller for half-bridge converters with secondary side synchronous...

主要ドキュメント:
ISL6745EVAL1Z User Guide
ISL6745EVAL2Z White LED Driver Driver Board

ISL6745LEVAL2Z

Evaluation
詳しくはこちら

Offline High Brightness White LED Driver Evaluation Board

The ISL6745EVAL2Z evaluation board is a reference design for powering high brightness white LEDs.

The ISL6745UEVAL2Z utilizes Renesas' ISL6745A, a double-ended...

主要ドキュメント:
ISL6745EVAL2Z User Guide
ISL6745EVAL2Z White LED Driver Driver Board

ISL6745UEVAL2Z

Evaluation
詳しくはこちら

Offline High Brightness White LED Driver Evaluation Board

The ISL6745EVAL2Z evaluation board is a reference design for powering high brightness white LEDs.

The ISL6745UEVAL2Z utilizes Renesas' ISL6745A, a double-ended...

主要ドキュメント:
ISL6745EVAL2Z User Guide

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