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TSM1051 Fiches technique(PDF) 1 Page - STMicroelectronics |
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TSM1051 Fiches technique(HTML) 1 Page - STMicroelectronics |
1 / 9 page 1/9 s CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROL s LOW VOLTAGE OPERATION s PRECISION INTERNAL VOLTAGE REFERENCE s LOW EXTERNAL COMPONENT COUNT s CURRENT SINK OUTPUT STAGE s EASY COMPENSATION s LOW AC MAINS VOLTAGE REJECTION DESCRIPTION TSM1051 is a highly integrated solution for SMPS applications requiring CV (constant voltage) and CC (constant current) mode. TSM1051 integrates one voltage reference, two operational amplifiers (with ORed outputs - common collectors), and a current sensing circuit. The voltage reference combined with one operational amplifier makes it an ideal voltage controller, and the other low voltage reference combined with the other operational amplifier makes it an ideal current limiter for output low side current sensing. The current threshold is fixed, and precise. The only external components are: * a resistor bridge to be connected to the output of the power supply (adapter, battery charger) to set the voltage regulation by dividing the desired output voltage to match the internal voltage reference value. * a sense resistor having a value and allowable dissipation power which need to be chosen according to the internal voltage threshold. * optional compensation components (R and C). TSM1051, housed in one of the smallest package available, is ideal for space shrinked applications such as adapters and battery chargers. APPLICATIONS s ADAPTERS s BATTERY CHARGERS ORDER CODE L = Tiny Package (SOT23-6) - only available in Tape & Reel (LT) D = Small Outline Package (SO) - also available in Tape & Reel (DT) PIN CONNECTIONS (top view) Part Number Temperature Range Package Marking LD TSM1051CLT 0 to 85°C • M801 TSM1051CD 0 to 85°C • M1051C L SOT23-6 (Plastic Package) D SO8 (Plastic Micro package) 1 2 34 5 6 Vctrl Gnd Vcc Vsense Out Ictrl 1 2 3 45 6 Vctrl Gnd Vcc Vsense Out Ictrl Nc Nc SOT23-6 SO8 7 8 January 2002 TSM1051 CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER FOR BATTERY CHARGERS AND ADAPTORS |
Numéro de pièce similaire - TSM1051 |
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Description similaire - TSM1051 |
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