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TDA3606AT データシート(PDF) 8 Page - NXP Semiconductors |
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TDA3606AT データシート(HTML) 8 Page - NXP Semiconductors |
8 / 16 page 1998 May 07 8 Philips Semiconductors Product specification Multiple voltage regulator with battery detection TDA3606A TEST AND APPLICATION INFORMATION Test information Fig.5 Test circuit. (1) Capacitor not required for stability. handbook, full pagewidth MGK598 reset 1 output reset 2 output 1 k Ω battery output voltage RL(RES1) 1 k Ω RL(RES2) 1 k Ω RL(bat) 15 16 14 5 6 17 7 TDA3606A GND VP VP VC battery input voltage 4 VI(bat) (1) regulator output 10 µF 10 µF 10 µF 1 k Ω .. 0.5 Ω RL(REG) Application information NOISE The noise at the output of the regulator depends on the bandwidth of the regulator, which can be adjusted by means of the output capacitor. In Table 1 the noise figures are given. Table 1 Noise figures Note 1. Measured at a bandwidth of 10 Hz to 100 kHz. The noise on the supply line depends on the value of the supply capacitor and is caused by a current noise (output noise of the regulator is translated into a current noise by means of the output capacitor). When a high frequency capacitor of 220 nF in parallel with an electrolytic capacitor OUTPUT CURRENT IO (mA) NOISE FIGURE ( µV)(1) AT OUTPUT CAPACITOR CL (µF) 10 47 100 0.5 58 50 45 50 250 200 180 of 100 µF is connected directly to pins 17 and 7 (supply and ground) the noise is minimized. STABILITY The regulator is stabilized by means of the output capacitor. The value of the output capacitor can be selected using the diagram shown in Fig.6. The following two examples show the effects of the stabilization circuit using different values for the output capacitor. Example 1 The regulator is stabilized using an electrolytic output capacitor of 68 µF (ESR = 0.5 Ω). At −40 °C the capacitor value is decreased to 22 µF and the ESR is increased to 3.5 Ω. The regulator will remain stable at a temperature of −40 °C. Example 2 The regulator is stabilized using an electrolytic output capacitor of 10 µF (ESR = 3.3 Ω). At −40 °C the capacitor value is decreased to 3 µF and the ESR is increased to 23.1 Ω. The regulator will be instable at a temperature of −40 °C. This can be solved using a tantalum capacitor of 10 µF. |
同様の部品番号 - TDA3606AT |
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同様の説明 - TDA3606AT |
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