Overview
Description
The ISL6726 is a highly featured single-ended PWM controller intended for applications using the active clamp forward converter topology in either n- or p-channel active clamp configurations, the asymmetric half-bridge topology, and the standard forward topologies with synchronous rectification. It is a current-mode PWM controller with many features designed to simplify its use. Among its many features are a precision oscillator which allows accurate control of the deadtime and maximum duty cycle, bi-directional synchronization with 180° phase shift for interleaving applications, adjustable soft-start and soft-stop, a low power disable mode, and average current limit for brick-wall overcurrent protection. This advanced BiCMOS design features low start-up and operating currents, adjustable switching frequency to greater than 1MHz, high current FET drivers, and very low propagation delays for a fast response to overcurrent faults.
Features
- Precision Maximum Duty Cycle and Deadtime Control
- 125µA Typical Start-up Current
- Adjustable Peak and Average Current Limit Protection
- Programmable Oscillator Frequency
- Bi-Directional Synchronization with 180° Phase Shift for Interleaved Converter Applications
- Adjustable Soft-Start and Selectable Soft-Stop
- Selectable Minimum Duty Cycle Clamp for Synchronous Rectifier Applications
- Programmable Slope Compensation
- Supports N- and P-Channel Active Clamp FETs
- Programmable Switch Timing Between Main and Active Clamp Outputs
- Programmable Undervoltage Lock-Out (UV)
- Input Voltage Dependent Duty Cycle Clamp
- ENABLE Input with Low Power Disable
- Internal Over-Temperature Protection
- Pb-Free (RoHS Compliant)
Comparison
Applications
Documentation
Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 1.17 MB | |
| Brochure | PDF 12.71 MB 日本語 | |
| Product Change Notice | PDF 268 KB | |
| Application Note | PDF 509 KB | |
| Application Note | PDF 397 KB | |
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Design & Development
Boards & Kits
Evaluation
ISL6726EVAL1Z
Last Time Buy
Current Mode Active Clamp Forward Evaluation Board
The ISL6726EVAL1Z evaluation board is a 48V input to 5V output DC/DC converter that can output current up to 40A.
The ISL6726EVAL1Z board uses the ISL6726, an advanced current mode PWM controller, to implement control of an active clamp forward. The circuit operates at fixed frequency with...
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Evaluation
ISL6726EVAL2Z
Obsolete
24V to 12V 90W Active Clamp Forward DC/DC Converter Evaluation Board
The ISL6726EVAL2Z evaluation board is a 24V input to 12V output DC/DC converter that can output current up to 7.5A. It is implemented with Renesas' ISL6726 active clamp forward (ACF) current-mode PWM controller. The board demonstrates fundamental functions of the ISL6726, including...
Recommended Documents:
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.
Product Options
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