SEA05TR Active
Free

Advanced CV/CC secondary controller
ECCN USEAR99
ECCN EUNEC
Packing TypeTape And Reel
ROHS Compliance GradeEcopack2
GradeIndustrial
Package NameSOT23-6L
Key Features
  • Open-drain output stage
  • Current sense threshold: 50 mV
  • SOT23-6L micro package
  • Constant voltage and constant current control
  • Low quiescent consumption: 200 µA
  • Wide operating VCC range [3.5 - 36] V
  • Voltage control loop accuracy +/- 0.5%
  • Low external component count
  • Voltage reference: 2.5 V

The SEA05 is a highly integrated solution for SMPS applications requiring a dual control loop to perform CV (constant voltage) and CC (constant current) regulation.


The device integrates a voltage reference, two opamps (with OR-ed open-drain outputs), and a lowside 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 and fixes the voltage regulation setpoint 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 regulation setpoint and must be adequately rated in terms of power dissipation; the frequency compensation components (R-C networks) for both loops.


The device, housed in one of the smallest available package, is ideal for space-shrunk applications such as adapters and chargers.

In stock:
$0.67
or
Range Unit Price Savings
1 - 9$0.671%
10 - 99$0.5518%
100 - 499$0.3647%
500$0.3450%
Contact Sales