ZVS Full-Bridge PWM Controller Evaluation Board
The ISL6752/54EVAL1Z is a new design based on the ISL6752EVAL1Z but with several design modifications to improve the efficiency from 90% to 95%. The control circuit has...
主要ドキュメント:
概要
説明
The ISL6752 is a high-performance, low-pin count alternative Zero-Voltage Switching (ZVS) full-bridge PWM controller. Like Renesas' ISL6551, it achieves ZVS operation by driving the upper bridge FETs at a fixed 50% duty cycle while the lower bridge FETs are trailing-edge modulated with adjustable resonant switching delays. Compared to the more familiar phase-shifted control method, this algorithm offers equivalent efficiency and improved overcurrent and light load performance with less complexity in a lower pin count package. The ISL6752 features complemented PWM outputs for Synchronous Rectifier (SR) control. The complemented outputs may be dynamically advanced or delayed relative to the PWM outputs using an external control voltage. This advanced BiCMOS design features precision dead time and resonant delay control and an oscillator adjustable to 2MHz operating frequency. Additionally, multi-pulse suppression ensures alternating output pulses at low duty cycles where pulse skipping may occur.
特長
- Adjustable resonant delay for ZVS operation
- Synchronous rectifier control outputs with adjustable delay/advance
- Current-mode control
- 3% current limit threshold
- Adjustable dead time control
- 175μA start-up current
- Supply UVLO
- Adjustable oscillator frequency up to 2MHz
- Internal over-temperature protection
- Buffered oscillator sawtooth output
- Fast current sense to output delay
- Adjustable cycle-by-cycle peak current limit
- 70ns leading edge blanking
- Multi-pulse suppression
- Pb-free (RoHS compliant)
製品比較
アプリケーション
- ZVS Full-Bridge Converters
- Telecom and Datacom Power
- Wireless Base Station Power
- File Server Power
- Industrial Power Systems
ドキュメント
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| 分類 | タイトル | 日時 |
| データシート | PDF 1.02 MB | |
| 製品変更通知 | PDF 398 KB | |
| アプリケーションノート | PDF 581 KB | |
| アプリケーションノート | PDF 725 KB | |
| アプリケーションノート | PDF 1.49 MB | |
| アプリケーションノート | PDF 509 KB | |
| アプリケーションノート | PDF 397 KB | |
| マニュアル－開発ツール | PDF 2.28 MB | |
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設計・開発
ソフトウェア／ツール
ソフトウェア／ツール
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| iSim:PEオフラインシミュレーションツール iSim Personal Edition（iSim：PE）は、プロジェクトの早い段階で設計サイクルを速め、プロジェクト初期のリスクを低減し、現在のみならず次世代の設計に耐えうる部品を選定します。
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Simulator | ルネサス |
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ボード＆キット
ZVS Full-Bridge PWM Controller Evaluation Board
The ISL6752/54EVAL1Z is a new design based on the ISL6752EVAL1Z but with several design modifications to improve the efficiency from 90% to 95%. The control circuit has...
主要ドキュメント:
ZVS Full-Bridge PWM Controller Evaluation Board
The ISL6752/54EVAL1Z is a new design based on the ISL6752EVAL1Z but with several design modifications to improve the efficiency from 90% to 95%. The control circuit has...
主要ドキュメント:
モデル
ECADモデル
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Processing table
| QSOP | 16 | Tube | 2 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +105°C | 2.838 | サンプルを入手, | |
| QSOP | 16 | Reel | 2 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +105°C | 3.001 |
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