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L6740L 数据表(PDF) 7 Page - STMicroelectronics |
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L6740L 数据表(HTML) 7 Page - STMicroelectronics |
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7 / 44 page ![]() L6740L Typical application circuit and block diagram 7/44 1.2 Block diagram Figure 4. Block diagram L6740L CONTROL LOGIC OSC OSC CURRENT BALANCE AMD SVI / PVI FLEXIBLE INTERFACE CS2+ VCORE_REF ERROR AMPLIFIER OFFSET VCC CS1- SGND CS1+ IDROOP IOS IOS 64k 64k 64k 64k REMOTE BUFFER NB_REF NB_COMP NB_VSEN NB_FBG NB_FB 1.24V NB_OS 30 µA 50 µA +I NB_OS OUTPUT VOLTAGE MONITOR AND PROTECTION MANAGEMENT NB CURR SENSE PWM4 PWM3 PWM2 PWM1 Σ Σ Σ Σ CS2- CS3+ CS3- CS4+ CS4- PWM1 PWM2 PWM3 PWM4 OSC VCC SGND INB_DROOP CORE - TOT CURRENT (from SVI/PVI decoding) CORE_REF & NB_REF ENDRV NB_ENDRV NB_ENDRV ENDRV ENDRV NB_ENDRV NB_DROOP CS1- |
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