Overview
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.
Features
- 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
Comparison
Applications
Applications
- ZVS Full-Bridge Converters
- Telecom and Datacom Power
- Wireless Base Station Power
- File Server Power
- Industrial Power Systems
Documentation
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|---|---|---|
| Type | Title | Date |
| Datasheet | PDF 748 KB | |
| Brochure | PDF 5.49 MB 日本語 | |
| Product Change Notice | PDF 398 KB | |
| Application Note | PDF 581 KB | |
| Application Note | PDF 725 KB | |
| Application Note | PDF 509 KB | |
| Application Note | PDF 397 KB | |
7 items
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Design & Development
Software & Tools
Software & Tools
| Software title
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Software type
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Company
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|---|---|---|
| iSim:PE Offline Simulation Tool iSim 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.
|
Simulator | Renesas |
1 item
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Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
ISL6753AAZA Active Samples Available
Buy Now
|
QSOP | Tube | 2 | 2.8 | Get Samples, |
| QSOP | Reel | 2 | 2.8 |
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