Thermal Considerations for the ON Semiconductor Family of Discrete Constant Current Regulators (CCR) in DPAK, SMC and SMB Packages for Driving LEDs On GlobalSpec

From ON Semiconductor L.L.C.

This application note supplements AND8391/D adding
thermal information for DPAK, SMB and SMC packages
and includes performance data for both FR4 and Thermal
(aluminum backed) MCPCB ( Metal Clad PCB) material.
The ON Semiconductor Constant Current Regulator
(CCR) family of devices offers outstanding regulation for
LEDs and other current based loads, such as battery
charging circuits. The CCR reduces the complexity of
resistor biased designs for sensitive loads, such as LED
strings connected in series. The CCR can also be connected
in parallel for higher load current applications. See
application note AND8349/D for basic circuit
considerations.

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