TS1052 Datasheet, PDF (1/8 Pages) Taiwan Semiconductor Company, Ltd – Constant Voltage and Constant Current Controller For Battery Chargers and Adaptors

SOT-26
TS1052
Constant Voltage and Constant Current Controller
For Battery Chargers and Adaptors
Pin Definition:
1. VCTRL 6. VCC
2. VND 5, VSENSE
3. Out 4. ICTRL
General Description
TS1052 is a highly integrated solution for SMPS applications requiring CV (constant voltage) and CC (constant
current) mode. TS1052 integrated one voltage reference, two operational amplifiers, and a current sensing circuit.
The voltage reference combined with one operational amplifier make it an ideal voltage controller, and the other
low voltage reference combined with the other operational amplifier make 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 to 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 having a value and allowable dissipation power which need to be chosen according to the
internal voltage threshold.
Features
● Constant Voltage and Constant Current Control
● Low Voltage Operation
● Precision Internal Voltage Reference
● Low External Component Count
● Current Sink Output Stage
● Easy Compensation
● Low AC Mains Voltage Rejection
Ordering Information
Part No.
Package
Packing
TS1052CX6 RFG SOT-26
3Kpcs / 7” Reel
Note: “G” denotes for Halogen free products
Block Diagram
Application
● Battery Charger
● Adapters
Pin Function Description
Name
Type
V_CTRL
Analog Input
V_ND
Power Supply
Out
Current Sink Output
I_CTRL
Analog Input
V_SENSE
Analog Input
V_CC
Power Supply
Function
Input Pin of the Voltage Control Loop
Ground Line. 0V Reference For All Voltage
Output Pin. Sinking Current Only
Input Pin of the Current Control Loop
Input Pin of the Current Control Loop
Position Power Supply Line
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Version: A12