I need to add some current limiting to my present circuit, where the output requirement is 10V @ 2A. The output current limit needs to vary in step sizes of 100 mA. I currently use the TPS54240, so before taking it out completely and changing the IC to something with programmable current limiting, I wanted to utilize what we have.
In the datasheet, it states on page 13:
"The TPS54240 uses an adjustable fixed frequency, peak current mode control. The output voltage is compared through external resistors on the VSENSE pin to an internal voltage reference by an error amplifier which drives the COMP pin. An internal oscillator initiates the turn on of the high-side power switch. The error amplifier output is compared to the high-side power switch current. When the power switch current reaches the level set by the COMP voltage, the power switch is turned off. The COMP pin voltage will increase and decrease as the output current increases and decreases. The device implements a current limit by clamping the COMP pin voltage to a maximum level. The Eco-Mode is implemented with a minimum clamp on the COMP pin."
I guess the overall question would be, can I vary the maximum level of the clamp?
Thanks in advance.
