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RNA51951BFPH0 Datasheet(PDF) 7 Page - Renesas Technology Corp |
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RNA51951BFPH0 Datasheet(HTML) 7 Page - Renesas Technology Corp |
7 / 10 page RNA51951A, B Preliminary R03DS0003EJ0301 Rev.3.01 Page 7 of 9 Apr 19, 2011 Notice for use About the Power Supply Line 1. About bypass capacitor Because the ripple and the spike of the high frequency noise and the low frequency are superimposed to the power supply line, it is necessary to remove these. Therefore, please install C1 and C2 for the low frequency and for the high frequency between the power supply line and the GND line as shown in following figure 2. Power-supply Output VCC RNA51951 GND C2 C1 + Example of ripple noise measures Figure 2 Example of Ripple Noise Measures Setting of Output Load Resistance (RNA51951B) High level output voltage can be set without depending on the power-supply voltage because the output terminal is an open collector type. However, please guard the following notes. 1. Please set it in value (2 V to 17 V) within the range of the power-supply voltage recommendation. Moreover, please never impress the voltage of maximum ratings 18 V or more even momentarily either. 2. Please set output load resistance (pull-up resistance) RL so that the output current (output inflow current IL) at L level may become 4 mA or less. Moreover, please never exceed absolute maximum rating (6 mA). VCC (2 V to 17 V) IL ≤ 4 mA 6 RL Figure 3 Output Load Resistance RL Others 1. Notes when IC is handled are published in our reliability handbook, and please refer it. The reliability handbook can be downloaded from our homepage (following URL). http://www.renesas.com/products/common_info/reliability/reliability_root.jsp 2. Additionally, please inquire of our company when there is an uncertain point on use. |
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