The ISL6721 is a low power, single-ended pulse width modulating (PWM) current mode controller designed for a wide range of DC/DC conversion applications including boost, flyback, and isolated output configurations.
The ISL6721 is a low‑power, single‑ended PWM current‑mode controller designed for a wide range of DC‑DC conversion applications, including boost, flyback, and isolated output configurations. It features adjustable switching frequency up to 1 MHz, low‑power mode, and built‑in over‑current, over‑voltage and under‑voltage protection.
The document provides functional block diagrams, typical application schematics, absolute maximum ratings, detailed electrical specifications, thermal protection data, and package dimensions for both TSSOP and SOIC variants.
| Supply Voltage Range (typical) | 9 VDC to 18 VDC |
|---|---|
| Operating Temperature Range | -40 °C to +105 °C |
| Adjustable Switching Frequency | up to 1 MHz |
| Startup Current | ≈ 100 µA |
| MOSFET Gate Driver Current | 1 A |
| Thermal Shutdown Temperature (typical) | 120 °C |
The typical supply voltage range is 9 VDC to 18 VDC.
It operates from –40 °C up to +105 °C.
The device supports an adjustable switching frequency up to 1 MHz.
The startup current is approximately 100 µA.