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Updated at 17/06/2025 10:30:15(UTC+8)

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Description

The SEA05TR is a highly Integrated Controller 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 op-amps (with ORed 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 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.
200µA Low quiescent consumption
±0.5% Voltage control loop accuracy
50mV Current sense threshold

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SEA05TR Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Mounting Style	Surface Mount
Number of Pins	6 Pin
Case/Package	SOT-23-6
Supply Voltage (DC)	3.50V (min)
Output Current	1.5 A
Supply Current	200 µA
Number of Positions	6 Position
Operating Temperature (Max)	150 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	3.5V ~ 36V
Supply Voltage (Max)	36 V
Supply Voltage (Min)	3.5 V
Input Voltage	36 V
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Operating Temperature	-25℃ ~ 125℃
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/12/17
ECCN Code	EAR99

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