TSM105

TSM105 CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER FOR BATTERY CHARGERS AND ADAPTORS s CONSTANT VOLTAGE AND CONSTANT s s s s s s CURRENT CONTROL LOW VOLTAGE OPERATION PRECISION INTERNAL VOLTAGE REFERENCE LOW EXTERNAL COMPONENT COUNT CURRENT SINK OUTPUT STAGE EASY COMPENSATION LOW AC MAINS VOLTAGE REJECTION ORDER CODE Part Number TSM105CLT TSM105CD Temperature Range 0 to 85°C 0 to 85°C Package Marking L D M105 TSM105 L = Tiny Package (SOT23-5) - only available in Tape & Reel (LT) D = Small Outline Package (SO) - also available in Tape & Reel (DT) DESCRIPTION TSM105 is a highly integrated solution for SMPS applications requiring CV (constant voltage) and CC (constant current) mode. TSM105 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 on 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 whose value and allowable dissipation power need to be chosen according to the internal voltage ...