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AN3392 Datasheet(PDF) 29 Page - STMicroelectronics |
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AN3392 Datasheet(HTML) 29 Page - STMicroelectronics |
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29 / 57 page  AN3392 External component selection Doc ID 018749 Rev 1 29/57 10 External component selection The SPV1020 requires a set of external components and their proper selection guarantees both the best chip functionality and system efficiency. The following sections refer to the connections and component labels shown in Figure 24 below: Figure 24. STEVAL-ISV009V1 schematic (PowerSSO-36 package) Please note the connections to OSC_IN are alternative connections. For the default switching frequency of 100 kHz, connect OSC_IN to VREG. For frequencies other than 100 kHz, connect a resistor between OSC_IN and SGND (see Section 10.11). PGND PGND VIN_SNS_M VIN_SNS_M AGND SHUT/SPI_XCS TEST_DATA/SPI_DATA_IN TEST_CLK/SPI_CLK PV+ PV- Vout+ Vout- Iin path Iout path Ground path High Current Path Legend SPV1001-N30 SPV1001-N40 SPV1020 ST SOLAR KEY PRODUCT Legend VOUT_SNS VOUT_SNS L2 CB1 CB1 CB1 CB1 CB1 L1 VIN VIN L2 CB2 CB2 CB2 CB2 CB2 CB3 CB3 CB3 CB3 CB3 VIN 3 L3 L VIN 4 L4 L CB4 CB4 CB4 CB4 CB4 L3 L4 L1 VIN_SNS VIN_SNS DIAG/SPI_DATA_OUT V_OUT PZ_OUT VOUT_SNS VOUT_SNS VOUT_SNS VOUT_SNS OSC_IN CB4 V_OUT CB3 V_OUT V_OUT CB1 VCC VIN_SNS CB2 DIAG/SPI_DATA_OUT OSC_IN Vreg VIN V_OUT V_OUT VCC 0 0 0 0 0 0 0 0 0 C7 470nF C7 470nF L1 47uH L1 47uH J40 CONN FLEX 2 J40 CONN FLEX 2 1 2 J35 SPV1020 (PSSO36 package) J35 SPV1020 (PSSO36 package) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 D2 SPV1001N40 D2 SPV1001N40 R3 3.9M R3 3.9M L2 47uH L2 47uH TP7 TP7 1 C8 22nF C8 22nF C9 220pF C9 220pF C11 1uF C11 1uF J47 FASTON J47 FASTON R5 1k R5 1k D3STPS160U D3STPS160U D6 SPV1001-N30 D6 SPV1001-N30 C3 100nF C3 100nF R2 110k R2 110k C2 100nF C2 100nF L3 47uH L3 47uH D7 SPV1001-N30 D7 SPV1001-N30 R4 110k R4 110k L4 47uH L4 47uH D5 D5 C10 220pF C10 220pF J48 FASTON J48 FASTON D4 SMB36CA D4 SMB36CA C14 4.7uF C14 4.7uF L5 2u5H L5 2u5H R6 0 R6 0 TP8 TP8 1 J36 4 HEADER J36 4 HEADER 1 2 3 4 TP5 TP5 1 C15 4.7uF C15 4.7uF R7 dnm R7 dnm C4 100nF C4 100nF C6 4.7uF C6 4.7uF D8 SPV1001-N30 D8 SPV1001-N30 R1 3.3M R1 3.3M C1 100nF C1 100nF TP6 TP6 1 D1 SPV1001N40 D1 SPV1001N40 C16 4.7uF C16 4.7uF C5 4u7F C5 4u7F |
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