TLV3202: Search a device with faster response time in tens of nanoseconds

Rannie Zhou

Part Number: TLV3202
Other Parts Discussed in Thread: LM2903B, , TLV3502, TLV3602, TLV9022

Tool/software:

Hi team,

My customer is evaluating LM2903B, but they found the response time is too long. Their requirement is in tens of nanoseconds. Could you please help to recommend a suitable comparator?

EE: Solar inverter (cost-sensitive)
Temperature>125C, like LM2903B
p2p with LM2903B will be better as the PCB board is completed
Dual Channels

I found TLV3202 in our portfolio but I'm not sure whether it's the most suitable device. Could you please help to double check?

Best Regards,

Rannie

8 months ago

0 Clemens Ladisch 8 months ago

Guru 294230 points

What package and voltage ranges are required? The TLV3202/TLV3502/TLV3602 do not work with more than 5 V.

0 Rannie Zhou 8 months ago in reply to Clemens Ladisch

TI__Intellectual 2690 points

5V is enough as the power supply is 5V. The package is SOIC-8 and should p2p with LM2903B as the PCB is fixed.

0 Clemens Ladisch 8 months ago in reply to Rannie Zhou

Guru 294230 points

The TLV3202 and TLV3502 are available in the SOIC package. Both have push/pull outputs.

0 HO SIU 8 months ago in reply to Rannie Zhou

TI__Expert 7390 points

Hi Rannie,

As Clemens suggested, TLV3202 is pin-to-pin with the LM2903B, but it has push-pull outputs. This means you can remove the output pull-up resistor on the PCB as TLV3202 has an internal pull-up FET. TLV3502 cannot be used because it is not pin-to-pin with LM2903B.

For an open drain device like the LM2903B, TLV9022 is available in the SOIC-8 package, but it has 100ns typ. propagation delay.

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TLV3202: Search a device with faster response time in tens of nanoseconds