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L6727TR Scheda tecnica(PDF) 4 Page - STMicroelectronics |
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L6727TR Scheda tecnica(HTML) 4 Page - STMicroelectronics |
4 / 34 page Typical application circuit and block diagram L6727 4/34 Doc ID 12933 Rev 4 1 Typical application circuit and block diagram 1.1 Application circuit Figure 1. Typical application circuit 1.2 Block diagram Figure 2. Block diagram HS LS VIN = 1.5V to 19V (**) L COUT Vout LOAD CHF CBULK RD CSN RSN CBOOT RgHS RgLS D 1 2 8 BOOT UGATE PHASE LGATE 4 CDEC FB 6 RFB COMP / DIS / OC 7 RF CF CP GND VCC ROS VCC = 5V to 12V ROCSET (*) 5 3 L6727 Reference Schematic (*) ROCSET not to be connected when VCC > 5V (**) Up to 12V with Vcc > 5V BOOT LGATE UGATE GND HS LS VCC ERROR AMPLIFIER + - 0.8V 300 kHz OSCILLATOR PWM PHASE CONTROL LOGIC & PROTECTIONS CURRENT READ & OCP DISABLE L6727 |
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