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SN71052

KODENSHI KOREA
Part Number SN71052
Manufacturer KODENSHI KOREA
Description Constant voltage and constant current controller
Published Sep 17, 2013
Detailed Description SN71052 Constant voltage and constant current controller for battery chargers and adapters Semiconductor http:// www.au...
Datasheet PDF File SN71052 PDF File

SN71052
SN71052

Overview
SN71052 Constant voltage and constant current controller for battery chargers and adapters Semiconductor http:// www.
auk.
co.
kr Description The SN71052 is a highly integrated solution for SMPS applications requiring a dual control loop to perform CV (constant voltage) and CC (constant current) regulation.
The SN71052 integrates a voltage reference, Two Op-Amps (with OR-ed open-drain outputs), and a low-side current sensing circuit.
The voltage reference, along with one Op-Amp, is the core of the voltage control loop; the current sensing circuit and the other Op-Amp make up the current control loop.
The external components needed to complete the two control loops are: ■ A resistor divider that senses the output of the power supply SOT-26 (adapter, battery charger) and fixes the voltage regulation set point at the specified value; ■ A sense resistor that feeds the current sensing circuit with a voltage proportional to the dc output current; this resistor determines the current regulat...


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