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).