msp430g2312に関する確認
Peripheral_COMP
で私は電圧を監視したいと思います 動作は約5Vの
電源のためのメガオーダーの抵抗電圧分圧器で不安定です。
また、
データシートのCOMPカラム
I(DD)=45μA
部分圧が10KΩ程度でないと難しいですか?
電圧分割抵抗の適切な桁を教えてください。
Confirmation regarding msp430g2312 At Peripheral_COMP I would like to monitor the voltage The operation is unstable with a resistance voltage divider of the mega order for a power supply of about 5V. also, In the data sheet COMP column I (DD) = 45 ��A Is it difficult unless the partial pressure is about 10K��? Please tell me the proper digit of the voltage dividing resistor.
Currently, the voltage is divided by the resistors of 6.8M and 1M. For reference voltage diode (0.55V) It is designed to reset at about 4.3V (�� In the calculation of the voltage division ratio) Actually, it resets at about 4.8 to 4.9V. The resistance value is too high and the inflow of current is small. Is there an error in the voltage judgment?
Hi
The external resister value are depends on how fast of the signal that you monitor. You can use the formula below in the user's guide to calculate the external resister
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