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NCP81042 Datasheet(PDF) 3 Page - ON Semiconductor |
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NCP81042 Datasheet(HTML) 3 Page - ON Semiconductor |
3 / 12 page NCP81042 http://onsemi.com 3 RF1 JP3 ETCH 1 2 CH1 Q3 1 RVFB1 RFB2 RSEN1 RNTC1 RISO1 RFB3 CF1 ENABLE VCCP RS4 VOUT CSEN1 CFB2 RS3 LOUT1 Q4 1 VIN CBOOT1 + COUT1 VCC R2 R1 NCP81042 BOOT 4 COMP 8 LG 2 LX 3 UG 5 CSP 13 CSN/VO 12 VCCP 1 PGOOD 6 SYNC 7 FBG 11 FB 9 SYNC PGOOD Figure 2. Typical Application Circuit ABSOLUTE MAXIMUM RATINGS Rating Symbol VMAX VMIN Unit Controller Power Supply Voltages to GND VCC, VCCP 15 −0.3 V Boost Supply Voltage Input BOOT 35V wrt/GND 40 V <100 ns wrt/GND 15 wrt/LX −0.3 V High−Side Driver Output (Top Gate) UG 35 40 V ≤ 50 ns wrt/GND 15 wrt/LX −0.3 wrt/LX −5 V < 200 ns V Switching Node (Bootstrap Supply Return) LX 35 40 < 100 ns −5 −10 V < 200 ns V Low−Side Driver Output (Bottom Gate) LG 15 −0.3 −5 V < 200 ns V All Other Pins 6 −0.3, −1 V < 1 ms V PGOOD PGOOD 7 −0.3, −1 V < 1 ms V SYNC SYNC 7 −0.3, −1 V < 1 ms V Current Sense Amplifier CSP, CSN/VO with VCC = 12 V 10 −0.3, −1 V < 1 ms V Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. *All signals referenced to GND unless noted otherwise. |
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