TPS65987DDK: Is there a wide temperature product of -40 ℃ ~85 ℃ that supports 100W power source

thanks ， For a 100W Type-C Source only application，Is there a reference design? Because there are many type-C interface pins, the customer does not know which chips and connections are necessary.

Thank you. This information is very helpful to the customer；

There are two more questions I would like to communicate with you:

1 Is the memory chip mx25l8006em11 necessary? What data needs to be stored?

2. is it OK to replace tps55288 with lm3489? The latter should be more cost-effective

An external EEPROM is required for operation of the TPS65987D. A firmware image is generating using the configuration tool, and this image must be loaded onto the PD controller via the external EEPROM. 

For your second question, I have moved this thread to the team responsible for this device. They will be able to better assist. 

ok, thanks

hi Jimmy

     The customer's front power supply will be guaranteed to be greater than 20V；

     Is it possible to use a step-down chip, such as LM3489, to reduce the customer's cost?

     The customer is more concerned about the cost.

hi JIMMY

add:

Does the pmp20042 application need not use the type-C control chip? How to control output voltage negotiation? If it can meet the needs of customers, the cost is very low;

Is there any way to buy this reference design board?

Hi,

To simplify things, I think you can use a converter like the LM61460 to achieve the 100W USB Type C source application. There is an application circuit shown in LM61440 datasheet shown in Section 9.2.4. 

The PMP20042 does not do output voltage negotiation since the way to dynamically change the output is by multiple open drain control switches to parallel different bottom resistors. 

If you plan on using the buck converter method, you will need to externally provide output voltage negotiation. The buck converter will only be providing a source to drop VIN to USB Type C output voltages. 

Regards,
Jimmy 

hi Jimmy

    Thanks a lot;

According to your suggestion, there are currently two options. Please help me see if my understanding is correct:

1. it is not necessary to negotiate through the type-C interface to output the 20v-5a power supply scheme: it can be realized by using one chip of lm61440;

2. it is necessary to negotiate and output different voltages through the type-C interface: lm3489 and tps65987d can be used for cooperation, and two chips can be used for implementation.