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概要
Description
The ISL6753 is a high-performance, low-pin-count alternative, zero-voltage switching (ZVS) full-bridge PWM controller. Like the 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 lightload performance with less complexity in a lower pin count package. This advanced BiCMOS design features low operating current, adjustable oscillator frequency up to 2MHz, adjustable soft-start, internal over temperature protection, precision deadtime and resonant delay control, and short propagation delays. 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
- Voltage- or Current-Mode Operation
- 3% Current Limit Threshold
- 175µA Startup Current
- Supply UVLO
- Adjustable Deadtime Control
- Adjustable Soft-Start
- Adjustable Oscillator Frequency Up to 2MHz
- Tight Tolerance Error Amplifier Reference Over Line, Load, and Temperature
- 5MHz GBWP Error Amplifier
- Adjustable Cycle-by-Cycle Peak Current Limit
- Fast Current Sense to Output Delay
- 70ns Leading Edge Blanking
- Multi-Pulse Suppression
- Buffered Oscillator Sawtooth Output
- Internal Over Temperature Protection
- Pb-Free Plus Anneal Available and ELV, WEEE, RoHS Compliant
アプリケーション
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
設計・開発
ソフトウェア／ツール
ソフトウェア／ツール
| iSim:PE Offline Simulation TooliSim Personal Edition (iSim:PE) speeds the design cycle and reduces risk early in any project, identifying parts that can be used in current as well as next-generation designs.ダウンロード: | Simulator | ルネサス |
モデル
ECADモデル
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製品選択
Processing table
| Tube | 980 | サンプルを入手, | ||
| Reel | 2500 |
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