JAJS131H July 2000 – November 2022 UCC28C40 , UCC28C41 , UCC28C42 , UCC28C43 , UCC28C44 , UCC28C45 , UCC38C40 , UCC38C41 , UCC38C42 , UCC38C43 , UCC38C44 , UCC38C45
PRODUCTION DATA
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The UCCx8C4x current sense input connects directly to the PWM comparator. Connect CS to the MOSFET source current sense resistor. The PWM uses this signal to terminate the OUT switch conduction. A voltage ramp can be applied to this pin to run the device with a voltage mode control configuration or to add slope compensation. To prevent false triggering due to leading edge noises, an RC current sense filter may be required. The gain of the current sense amplifier is typically 3 V/V.