Overview
Description
Support is limited to customers who have already adopted these products.
The ISL6840, ISL6841, ISL6842, ISL6843, and ISL6844 (ISL684x) family of adjustable frequency, low power, Pulse-Width Modulating (PWM) current mode controllers is designed for a wide range of power conversion applications including boost, flyback, and isolated output configurations. Peak current mode control effectively handles power transients and provides inherent overcurrent protection. This advanced BiCMOS design is pin-compatible with the industry standard 384x family of controllers and offers significantly improved performance. Features include low operating current, 60µA start-up current, adjustable operating frequency to 2MHz, and high peak current drive capability with 20ns rise and fall times.
Features
- 1A MOSFET gate driver
- 60µA start-up current, 100µA maximum
- 25ns propagation delay current sense to output
- Fast transient response with peak current mode control
- Adjustable switching frequency to 2MHz
- 20ns rise and fall times with 1nF output load
- Trimmed timing capacitor discharge current for accurate deadtime/maximum duty cycle control
- High bandwidth error amplifier
- Tight tolerance voltage reference over line, load, and temperature
- Tight tolerance current limit threshold
- Pb-free available (RoHS compliant)
Comparison
Applications
Documentation
Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 333 KB | |
| End Of Life Notice | PDF 229 KB | |
| Product Change Notice | PDF 398 KB | |
| Manual - Development Tools | PDF 1.15 MB | |
| Application Note | PDF 509 KB | |
| Application Note | PDF 397 KB | |
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Design & Development
Boards & Kits
Evaluation
ISL6841EVAL3Z
Obsolete
PWM Controller Evaluation Board for General Purpose Industrial Applications
The ISL684x family of devices are superior performing pin compatible replacements for the industry standard ISL384x single-ended current mode PWM controllers. Available in 8 Ld MSOP and 8 Ld SOIC, the ISL6841 single-ended PWM controller in the space saving 2mm x 3mm DFN package is used on the...
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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.
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