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Analog Technologies

ATLS4A217

High Voltage Constant Current 4A Laser Driver

It is highly recommended to lower solder iron

temperature to 310°C (590°F) and solder the driver

manually, so that the internal contents of the driver would

not be affected.

After the soldering, it is also safe to check the laser driver’s

functionality by using the “dummy laser” before connecting

a real laser diode as mentioned previously on page 4.

spikes when they are not connected well with the load or

when they recover from an over current protection state.

When happens, it may exceed the maximum allowed input

voltage, 27V, of the controller and damage the controller

permanently. To avoid this from happening, do the

following:

1. Connect the controller well with the power supply before

turning on the power.

2. Make sure that the power supply has sufficient output

current. It is suggested that the power supply can

supply 1.2 to 1.5 times the maximum current the

controller requires.

3. When using a bench top power supply, set the current

limit to >1.5 times higher than the maximum current the

controller requires.

4. This laser driver can be evaluated by our evaluation board,

ATLS216EV1.0.

ORDERING INFORMATION

Table 5. Part Number

Part Number

Description

ATLS4A217D

4A constant current driver in DIP package

Table 6. Unit Price

Quantity (pcs)

1

− 9

10

− 49

50

− 199

200

−499

≥500

Unit Price

$147.0

$141.8

$131.3

$126.0

$120.8