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STR3A155D Datasheet(PDF) 11 Page - Allegro MicroSystems |
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STR3A155D Datasheet(HTML) 11 Page - Allegro MicroSystems |
11 / 14 page 11 SANKEN ELECTRIC CO., LTD. STR3A150D-DS July 20, 2012 PWM Off-Line Switching Regulator ICs STR3A151D, STR3A152D, STR3A153D, STR3A154D, STR3A155D Functional Block Diagram Functional Block Diagram Functional Block Diagram Pin-out Diagram LEB OCP DRV TSD OVP UVLO Reg VREG OLP PWM Oscillator VCC FB/OLP S/OCP D/ST GND Control Part 4 1 3 VCC 2 5, 6, 7, 8 Drain Peak Current compensation Slope compensation Feedback control Startup S Q R Pin List Table Number Name Function 1 S/OCP MOSFET source and input of Overcurrent Protection (OCP) signal 2 VCC Power supply voltage input for Control Part and input of Overvoltage Protection (OVP) signal 3 GND Ground 4 FB/OLP Feedback signal input for constant voltage control signal and input of Overload Protection (OLP) signal 5, 6,7, 8 D/ST MOSFET drain pin and input of the startup current 1 2 3 4 8 7 6 5 D/ST D/ST D/ST D/ST S/GND VCC GND FB/OLP |
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