Overview
Description
The ISL6729 pulse width modulating (PWM) current mode controller is designed for power conversion applications that are based on a microcontroller, or other device, which can generate a digital clock signal at the desired switching frequency. Similar to the ISL684x family of products, the ISL6729 provides the basic current mode PWM control features, but eliminates the error amplifier, the oscillator, and the reference. An external clock signal applied to the oscillator input provides the time base and sets the maximum duty cycle. The reduced feature set is ideal for those applications where a microcontroller is available to provide the monitor and control functions. The analog PWM provides the cycle-by-cycle peak-current mode control, leaving the monitor and control overhead to the microcontroller.
Features
- 5V operation
- 1A MOSFET gate driver
- 400μA startup current
- 30ns propagation delay current sense to output
- Fast transient response with peak-current mode control
- Switching frequency to 2MHz
- 20ns rise and fall times with 1nF output load
- Maximum duty cycle determined by clock input duty cycle
- Tight tolerance current limit threshold
- Pb-free (RoHS compliant)
Comparison
Applications
Applications
- Telecom and Datacom Power
- Wireless Base Station Power
- File Server Power
- Industrial Power Systems
- PC Power Supplies
- Isolated Buck and Flyback Regulators
- Boost Regulators
Documentation
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Type | Title | Date |
Datasheet | PDF 480 KB | |
Brochure | PDF 5.49 MB 日本語 | |
End Of Life Notice | PDF 603 KB | |
Product Change Notice | PDF 266 KB | |
End Of Life Notice | PDF 124 KB | |
Product Change Notice | PDF 108 KB | |
Application Note | PDF 509 KB | |
Application Note | PDF 397 KB | |
8 items
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Design & Development
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.