Part # Application Note Power Supply And Power Management TSM1011 AN1623 datasheet

Part Manufacturer: ST Microelectronics

ST Microelectronics

Part Description: TSM1011: regulation loops precision calculation

Part Details:

AN1623 APPLICATION NOTE TSM1011: REGULATION LOOPS PRECISION CALCULATION by Giuseppe SCUDERI 1 PRINCIPLE OF OPERATION The voltage reference combined with oneoperational amplifier makes it an ideal voltage This technical note shows how it is possible to controller. calculate the current and voltage precision in theregulation loop of the TSM1011. The other operational amplifier, combined withfew external resistors and the voltage reference, The TSM1011 is a highly integrated solution for can be used as a current limiter. SMPS applications requiring CV (ConstantVoltage) and CC (Constant Current) mode. This circuit is designed for use in battery chargerswith a constant voltage and a limited output The TSM1011 integrates one voltage reference current and in adapters. and two operational amplifiers (with ORed outputs- common collector). It can be used in every type of applicationrequiring 0.5% and 1% voltage referenceprecision fixed at 2.5 Volts. Figure 1 : Typical application using TSM1011 inSSMPS optocoupler Rlimit D2 secondary side OUT+ TSM1011 8 Vref Vcc 1 R3 R2 2,5V 28V CV+ CV Out Rvc1 Cvc1 5 7 C3 R4 CC+ 4 PWM C1 C2 CC 3 CV- controller R5 CC- Gnd R1

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Application Note Power Supply And Power Management TSM1011 AN1623.pdf Datasheet