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ST662A bảng dữ liệu(PDF) 8 Page - STMicroelectronics |
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ST662A bảng dữ liệu(HTML) 8 Page - STMicroelectronics |
8 / 13 page ST662A 8/13 HOW TO INCREASE OUTPUT CURRENT OR OUTPUT VOLTAGE CAPABILITY Current capability is limited by RON of internal switches. It is possible to increase it connecting in parallel two or more ST662A devices; each one of them can supply 30mA. The figure 19 shows the electric schematic. The capacitors C3,C4 and C5 must be placed very close to the ICs on the board. If this is not possible, you can place two different capacitors, each of them of half value, very close to the respective integrated circuit. Fig. 21 show the Output Current capability of the proposed circuit. If an output voltage greater than 12V is required, it’s possible to realize the circuit of the following diagram (figure 20). The relevant Output Current capability is shown in figure 22 in which is shown the output voltage vs load current. Figure 19 : Application Circuit for Two ST662A in Parallel TABLE 2: List of Components CAPACITOR TYPE VALUE (µF) C1A Ceramic 0.22 C2A Ceramic 0.22 C1B Ceramic 0.22 C2B Ceramic 0.22 C3 Electrolytic Tantalum 10 C4 Electrolytic Tantalum 10 C5 Ceramic 0.22 |
Số phần tương tự - ST662A_04 |
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Mô tả tương tự - ST662A_04 |
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