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STR3A154 Datasheet(PDF) 1 Page - Allegro MicroSystems |
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STR3A154 Datasheet(HTML) 1 Page - Allegro MicroSystems |
1 / 14 page SANKEN ELECTRIC CO., LTD. Description STR3A100 series are power ICs for switching power supplies, incorporating a power MOSFET and a current mode PWM controller IC in one package. Including a startup circuit and a standby function in the controller, the product achieves low power consumption, low standby power, and high cost-effectiveness in power supply systems, while reducing external components. The products are provided in an industry standard DIP8 package. Features and Benefits • Current mode PWM control • Built-in Random Switching function: reduces EMI noise, simplifies EMI filters, and cuts cost by external part reduction • Built-in Slope Compensation function: avoids subharmonic oscillation • Built-in Leading Edge Blanking (LEB) function • Auto Standby function: ▫ Input power, PIN < 10 mW at no load with low power consumption shunt regulator ▫ Normal load operation: PWM switching ▫ Light load operation: Standby mode (Burst oscillation) PWM Off-Line Switching Regulator ICs Typical Application Package: DIP8 Not to scale STR3A151, STR3A152, STR3A153, STR3A154, STR3A155 Continued on the next page… STR3A150-DS Applications Switching power supplies for electronic devices such as: • Stand-by power supply for LCD/PDP television, desktop PC, multi-function printer, audio equipment, and so forth • Small switched-mode power supply (SMPS) for printer, BD/DVD player, set-top box, and so forth • Auxiliary power supply for air conditioner, refrigerator, washer, dishwasher, and so forth July 20, 2012 VAC C1 C5 R3 D3 D2 R2 C2 T1 D4 C6 R4 R5 U2 R9 R7 C7 D P S PC1 PC1 C3 ROCP C9 CRD Snubber Circuit D1 R6 R8 L2 C8 C, RC Damper Snubber Circuit VOUT GND C4 12 34 D/ST D/ST VCC NC S/OCP FB/OLP GND D/ST D/ST 87 65 STR3A100 U1 |
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Similar Description - STR3A154 |
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