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Analog Technologies

ATLS100MA103

Low Noise Constant Current Laser Controller

MECHANICAL DIMENSIONS AND MOUNTING

The ATLS100MA103 comes in 2 packages: through hole

mount and surface mount. The former is often called DIP

(Dual Inline package) or D (short for DIP) package and has a

part number: ATLS100MA103D, and the latter is often called

SMT (Surface Mount Technology) or SMD (Surface Mount

Device) package and has a part number: ATLS100MA103S.

See below Figure 19 and 20.

Figure 19. Dimensions of the DIP Package Controller

Figure 20. Dimensions of the SMT Package Controller

Figure 21 shows the foot print which is seen from the top side

of the PCB, therefore, it is a “see through” view.

Figure 22 shows the view of the bottom side PCB foot-print.

“Tent” (i.e. cover the entire via by the solder mask layer) all

the vias under the controller, otherwise, the vias can be

shorted by the bottom plate of the controller which is

internally connected the ground.

Please notice that, in the recommended foot print for the DIP

package, the holes for pin 2 to 6, and 8 to 12 have larger holes

than needed for the pins. This arrangement will make it easier