SN74CB3T3253 higher current opperation

Edwin,

Thank you for your inquery.  I have forwarded your question to the appropriate applications engineer for this device.  You should hear from them soon.

Thank you,

Adam

Hi,

Sorry I don't have a schematic but I am basically driving an LEDs with PWM and S0 and S1 are grounded and Vcc is 3.3V
PINS
1 to GND
2 to GND
3 floating
4 floating
5 floating
6 to PWM1
7 to LED1 to resistor to GND
8 to GND

9 to LED2 to resistor to GND
10 to PWM2
11 floating
12 floating
13 floating
14 to GND
15 to GND
16 to 3.3V

Thank you

I can draw a schematic if needed or helps, oops I had a typo for pin 10

GIOB_0 and GIOB_1 are LOW

When you say "Not working" do you mean that the PWM signal output from the switch is not as clean or at the same level as you expected, or that there is no output at all?

A good test would be to toggle the S0 and S1 pins and measure the resistance between two ports when the truth table states that the switch should be connected to those particular ports. For example, try S1=H, S0=L, then measure the resistance between 2A and 2B3.

Edit: Typo on the select pins.

Hi,

It measures 0 ohms. Oh someone gave that title to this I think they thought pins 1A and 2A are current. I'm using voltages from a launchpad so it should be low current. Thanks

You can verify a top-side marking here: http://www.ti.com/general/docs/partmarking/partmarkinghome.jsp