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6

Analog Technologies

ATLS3A202D

Constant Current Laser Driver

OUTLINE DIMENSIONS AND MOUNTING

The driver comes in only one package: through hole mount,

being often called DIP (Dual Inline Package) or D (short

for DIP) package, and has a part number: ATLS3A202D.

The dimensions of the DIP package driver are shown in

Figure 8.

Figure 8. Dimensions of the DIP Package Driver

Figure 9 shows the top view PCB foot-print for mounting

the laser driver.

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

all the vias under the driver, otherwise, the vias can be

shorted by the bottom plate of the driver which is internally

connected the ground.

See Figure 9 and 10, it is recommended to use large copper

fills for VPS, LDC, and the LDA pins, and other pins if

possible, to decrease the thermal resistance between the

module and the supporting PCB, to lower the module

temperature.

Figure 9. Top View of the PCB Foot-print

Figure 10. Top View of the Bottom Side PCB Foot-print

Figure 10 shows the top view of the bottom side PCB foot-

print.

manually on the board by using a

solder iron of < 310ºC (590ºF), never

let the module go through a reflow

oven process.

ORDERING INFORMATION

Table 3 Part Number

Part Number

Description

ATLS3A202D

3A constant current driver in DIP package

Table 4 Unit Price

Quantity (pcs)

1

− 9

10

− 49

50

− 199

200

− 499

≥500

ATLS3A202D

$83.0

$80.4

$75.8

$71.2

$66.6