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2022-09-24 23:33:15
ISL6843IB - Raising Industry Standard Single-Ended Current Mode PWM Controller
The ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845 family of adjustable pulse frequency, low power, width modulation (PWM) current mode controllers are designed for a wide range of power conversion applications including boost, flyback, and isolated output configurations. Peak current mode control efficiently handles supply transients and provides inherent overcurrent protection. This advanced BiCMOS design is pin-compatible with the industry-standard 384x family of controllers, providing significantly improved performance. Features include low operating current, 60µA startup current, adjustable operating frequency up to 2MHz, and high peak current drive capability with 20ns rise and fall times.
Features • 1A MOSFET gate driver • 60µA startup current, 100µA max
• 25ns propagation delay current sense output • Fast transient response with peak current mode control • Adjustable switching frequency up to 2MHz
• 20ns rise and fall times for 1nF output load • Side timing capacitor discharge current, accurate dead time/maximum duty cycle control • High bandwidth error amplifier • Line tight tolerances over reference voltage, load, and temperature • Tight tolerances Current Limit Threshold • Lead Free Plus Annealed (RoHS Compliant)
Applications • Telecom & Datacom Power • Wireless Base Station Power • File Server Power • Industrial Power Systems • Personal Computer Power Supplies • Isolated Buck and Flyback Regulators • Boost Regulators