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NCV8851B Datasheet(PDF) 2 Page - ON Semiconductor |
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NCV8851B Datasheet(HTML) 2 Page - ON Semiconductor |
2 / 18 page NCV8851B http://onsemi.com 2 VCLAMP Figure 1. Functional Block Diagram Figure 2. Application Schematic VIN EN VIN_IC SYNC ROSC CCOMP 12 11 CFB CSOUT VCOMP VFB 20 1 3 15 16 17 14 13 9 6VOUT BST GH VSW 4 5 6 7 8 2 19 18 10 GL PGND VIN_CS CSP CSN AGND CSA Fault ACL BST 6VOUT Fault VACL + + VREF VSS + VEA CEA OCP VOCP Nonoverlap + VREF PWM TSD Enable UVLO Fixed−Frequency Oscillator Ramp Clock Max Duty Reset Dominant Fault Logic LDO Enable LDO ILIMIT Soft Start VSS Min On Time Q Q S R 12 11 3 1 20 ROSC ROSC SYNC VIN_IC EN VIN 15 16 17 10 VIN CC2 CCOMP CC1 RC1 RC2 CSOUT AGND CFB 14 13 18 19 2 8 7 6 5 4 9 L C + + − VOUT RS RV1 CV1 CV2 VCOMP VFB CSN CSP RF1 RF0 PGND VIN_CS GL VSW GH BST 6VOUT DBST VIN + + − CBST Q1 Q2 Note: This part is recommended for synchronous use only. |
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