FEATURES
High Efficiency: ≥90%
Maximum Output Current: 4A
Current Output Noise: 5.41μAP-P@0.1Hz ∼ 10Hz
High Stability: 100ppm/°C
Loop Good Indication
Zero EMI
Compact Size
100 % Lead (Pb)-free and RoHS Compliant
DIP Package Available
DESCRIPTION
Table 1 Pin Function Descriptions
This laser driver is an electronic module designed for driving
diode lasers with up to 4A constant current, high efficiency,
low noise, high reliability, zero EMI, and small package.
Figure 1 shows the actual photo of ATLS4A201D.
It provides these the functions: laser constant current control,
laser current monitoring, over current and thermal protection,
laser current control indication, laser diode status indication,
soft start, and shut down.
It comes with a high stability low noise 2.5V voltage reference
output which can be used for setting the output current. The
reference output can also be used for the ADCs (Analog to
Digital Converters) and/or DACs (Digital to Analog
Converters).