资料介绍
The ISL6445 is a high-performance, dual-output PWM controller optimized for converting wall adapter, battery or network intermediate bus DC input supplies into the system supply voltages required for a wide variety of applications. Each output is adjustable down to 0.8V. The two PWMs are synchronized 180° out of phase reducing the RMS input current and ripple voltage.
The ISL6445 incorporates several protection features. An adjustable overcurrent protection circuit monitors the output current by sensing the voltage drop across the lower MOSFET. Hiccup mode overcurrent operation protects the DC/DC components from damage during output overload/short circuit conditions. Each PWM has an independent logic-level shutdown input (SD1 and SD2).
A single PGOOD signal is issued when soft-start is complete on both PWM controllers and their outputs are within 10% of the set point. Thermal shutdown circuitry turns off the device if the junction temperature exceeds +150°C. Application Note 1521
ISL6445 Evaluation Board User Guide
Hardware Description VIN
The ISL6445EVAL3Z evaluation board is designed to 5.6V TO 24V
demonstrate the performance of the ISL6445.
The ISL6445 is a high-performance, dual-output PWM
controller optimized for converting wall adapter, battery
or network intermediate bus DC input supplies into the
system supply voltages required for a wide variety of
applications. Each output is adjustable down to 0.8V. The
LOAD
two PWMs are synchronized 180°
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