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データシートサーチシステム |
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データシートサーチシステム |
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PM6675STR データシート(PDF) 18 Page - STMicroelectronics |
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PM6675STR データシート(HTML) 18 Page - STMicroelectronics |
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18 / 53 page  Block diagram PM6675S 18/53 6 Block diagram Figure 31. Functional and block diagram LOUT LIN LPG VCC AVCC SGND VSEL LEN SWEN CSNS HGATE LGATE PHASE BOOT PGND NOSKIP VREF VSNS LFB VOSC COMP CONTROL LOGIC Zero Crossing & Current Limit SPG Vr -10 % Vr +10 % + - + - gm + _ Vr + _ VREF Level shifter 1.236V Bandgap Vr = 0.6V SDS LDS LEN LEN LILIM UVLO SWEN SWEN Vr Ton Toff 1-shot 1-shot 1-shot fix adj UVP/OVP Thermal Shutdown min min + - + - Vr +10 % Vr -10 % 0.6V + _ Ton Anti Cross Conduction LILIM LGND LDS LDS LOUT LIN LPG VCC AVCC SGND VSEL LEN SWEN CSNS HGATE LGATE PHASE BOOT PGND NOSKIP VREF VSNS LFB VOSC COMP CONTROL LOGIC Zero Crossing & Current Limit SPG Vr -10 % Vr +10 % + - + - gm + _ Vr + _ VREF Level shifter 1.236V Bandgap Vr = 0.6V SDS LDS LEN LEN LILIM UVLO SWEN SWEN Vr Ton Toff 1-shot 1-shot 1-shot fix adj UVP/OVP Thermal Shutdown min min + - + - Vr +10 % Vr -10 % 0.6V + _ Ton Anti Cross Conduction LOUT LIN LPG VCC AVCC SGND VSEL LEN SWEN CSNS HGATE LGATE PHASE BOOT PGND NOSKIP VREF VSNS LFB VOSC COMP CONTROL LOGIC Zero Crossing & Current Limit SPG Vr -10 % Vr +10 % + - + - gm + _ Vr + _ VREF Level shifter 1.236V Bandgap Vr = 0.6V SDS LDS LEN LEN LILIM UVLO SWEN SWEN Vr Ton Toff 1-shot 1-shot 1-shot fix adj UVP/OVP Thermal Shutdown min min + - + - Vr +10 % Vr -10 % 0.6V + _ Ton Anti Cross Conduction LILIM LGND LDS LDS Table 7. Legend SWEN Switching controller enable LEN LDO regulator enable LDS LDO output discharge enable SDS Switching output discharge enable LILIM LDO regulator current limit |
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