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PM6675 数据表(PDF) 13 Page - STMicroelectronics |
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PM6675 数据表(HTML) 13 Page - STMicroelectronics |
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13 / 47 page  Obsolete Product(s) - Obsolete Product(s) Obsolete Product(s) - Obsolete Product(s) PM6675 Block diagram 13/47 5 Block diagram Figure 3. 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 5. 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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