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RNA51958A Datasheet(PDF) 9 Page - Renesas Technology Corp |
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RNA51958A Datasheet(HTML) 9 Page - Renesas Technology Corp |
9 / 14 page RNA51958A, B Preliminary R03DS0011EJ0400 Rev.4.00 Page 9 of 13 Jun 19, 2012 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 5. Power-supply Output R1 VCC R2 Vin RNA51958 Input GND C2 C1 + Delay capacitor Cd Example of ripple noise measures Figure 5 Example of Ripple Noise Measures 2. The sequence of voltage impression Please do not impress the voltages to the input terminals earlier than the power supply terminal. Moreover, please do not open the power supply terminal with the voltage impressed to the input terminal. (The setting of the bias of an internal circuit collapses, and a parasitic element might operate.) About the Input Terminal 1. Setting range of input voltage The following voltage is recommended to be input to the input terminal (pin 2). about 0.8 (V) < Vin < VCC – 0.3 (V) ... at VCC 7 V about 0.8 (V) < Vin < 6.7 (V) ............. at VCC > 7 V 2. About using input terminal Please do an enough verification to the transition characteristic etc. of the power supply when using independent power supply to input terminal (pin 2). Power-supply Output Vin RNA51958 Input GND VCC Delay capacitor Cd Vin is decided to the VCC subordinating, and operates in the range about 0.8 (V) < Vin < VCC – 0.3 (V). Figure 6 Recommended Example |
Similar Part No. - RNA51958A_15 |
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Similar Description - RNA51958A_15 |
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