1. For your application, you can use an IC with multiple PWMs and an external MOSFET driver instead of using DAC.
2. Please refer to the PSoC 6 MCU product in this link which has maximum of 32 TCPWM blocks.
3. You can also refer to different PSoC4200 family (maximum of 8 TCPWMs in PSoC4200L,PSoC4200M), PSoC4100 family(maximum of 8 TCPWMs in PSoC4100M,PSoC4100PS, PSoC4100S plus), PSoC4000 family(maximum of 5 TCPWMs in PSoC4000S) products in these links.
More information is needed to help better your project, like LED type (PN, driving voltage and current), driver type (if you already decided), control type (PWM/analog), number of control outputs etc.