Instruction/ maintenance manual of the product si85xx Silicon Laboratories
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Rev. 0.1 6/07 Copyright © 2007 by Silicon La borato ries Si85xx-TB UG Si85xx-TB UG Si85 XX U NIDIR ECTIO NAL AC C URRENT S ENSOR T ARGET B OARD U SER ’ S G UIDE The Si85xx product s are unidirectional a c current sensors available with full scal e current sense input ran ges of 5, 10, and 20 A.
Si85xx-TB UG 2 Confidentia l Rev. 0.1 3. Si85xx-TB Hardwired to Single-Phase POL Figure 2 illustrates the Si85xx-TB solder ed directly into a single-phase POL. The single phas e POL was designed to operate at a 400 kHz switch rate and provide better th an 90 percent ef ficiency .
Si85xx-TB UG Confidential Rev. 0.1 3 4. Si85xx Evaluation Board The Si85xx-TB ha s a Si8512 installed. Refer to F igure 4 for the loca tions of the various I/O connectors a nd major components.
Si85xx-TB UG 4 Confidentia l Rev. 0.1 4.3. R1, R2, R3, R4 Input s, OUT1, OUT2 Output s (J4) Connector J4 is used to provide the control inputs (R1, R2, R3, R4, M ODE) to the Si85xx. It also provides the output voltage of th e sensed in put current on OUT1 and OUT2 .
Si85xx-TB UG Confidential Rev. 0.1 5 5. Schematic OUT 2 OUT 1 R4 R3 R2 R1 MODE V5V V5V V5V V5V Normal Setup, No Mods C1 10uF C1 10uF J5 IIN J5 IIN 1 2 3 4 J3 J3 J6 IIOUT J6 IIOUT J1 5V J1 5V C2 0.
Si85xx-TB UG 6 Confidentia l Rev. 0.1 6. Bill of Materials T able 7. Si825x Multi-Phase POL Reference Design Bill of Materials Item Quantity Reference Part Number Manufacturer Desc ription 1 1 C1 PCC2182CT -ND Digi-Key 10 uF 2 1 C 2 PCC1812CT -ND Digi-Key 0.
Si85xx-TB UG Confidential Rev. 0.1 7 N OTES :.
Si85xx-TB UG 8 Confidentia l Rev. 0.1 C ONT ACT I NFORMATION Silicon Laborato ries Inc. 400 West Cesar Chavez Austin, TX 78701 T el: 1+(512) 416-8 500 Fax: 1+(512) 416-9669 T oll Free: 1+(877) 444-3032 Email: PowerProducts@silabs.com Internet: www .silabs.
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