ZHCSQG1H November 2009 – May 2022 LMP8645 , LMP8645HV
PRODUCTION DATA
- 1 特性
- 2 應(yīng)用
- 3 說(shuō)明
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Detailed Description
- 8 Application and Implementation
- 9 Power Supply Recommendations
- 10Layout
- 11Device and Documentation Support
- 12Mechanical, Packaging, and Orderable Information
封裝選項(xiàng)
機(jī)械數(shù)據(jù) (封裝 | 引腳)
- DDC|6
散熱焊盤(pán)機(jī)械數(shù)據(jù) (封裝 | 引腳)
訂購(gòu)信息
7.4.2.3 Range 3: VCM is greater than VS
The maximum voltage at the RG pin is Vout_max, it means that:
where
- Vout_max is the maximum allowable output voltage according to the Electrical Tables
So all the RGAIN resistors which respect the previous inequality are allowed. The graphical representation in Figure 7-5 helps with the selection.
All the combinations (VSENSE, RGAIN) below the curves are allowed.
Figure 7-5 Allowed Gains for Range 3Also in this range once selected the RGAIN (Gain) the VSENSE range is fixed too.
From the ranges shown above, a good way to maximize the output voltage swing of the LMP8645 is to select the maximum allowable RGAIN according to the previous equations. For a fixed supply voltage and VSENSE as the common-mode voltage increases, the maximum allowable RGAIN increases too.