ZHCSK06F March 2005 – July 2019 TL431-Q1 , TL432-Q1
PRODUCTION DATA.
請參考 PDF 數(shù)據(jù)表獲取器件具體的封裝圖。
Slow or inaccurate responses can also occur when the reference pin is not provided enough overdrive voltage. This is the amount of voltage that is higher than the internal virtual reference. The internal virtual reference voltage is within the range of 2.5 V ± (0.5%, 1%, or 1.5%) depending on which version is being used. The more overdrive voltage provided, the faster the TL43x-Q1 responds.
For applications where the TL43x-Q1 is being used as a comparator, it is best to set the trip point to greater than the positive expected error (for example: +1% for the A version). For fast response, setting the trip point to at least 10% of the internal VREF should suffice.
For minimal drop or difference from VINREF to the REF pin, TI recommends using an input resistor <10 kΩ to provide IREF