FEATURES
 Power Supply Voltage Range: 3.1V ∼ 6V
 High Efficiency: ≥ 90%
 Maximum Output Current: 3A
 Current Output Noise: 4.48μAP-P@0.1Hz ∼ 10Hz
 High Stability: ± 8mA@3A for entire temperature
 Loop Good Indication
 Compact Size
 Fully shielded
 100 % Lead (Pb)-free and RoHS Compliant
DESCRIPTION
This laser driver, ATLS3A201D, is an electronic module
designed for driving diode lasers by an up to 3A constant
current with high efficiency, low noise, high stability, high
reliability, zero EMI, and small package. Figure 1 shows the
physical photo of the ATLS3A201D.
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. This voltage can be used by a POT
(Potentiometer), or a DAC (Digital to Analog Converter) to
set the voltage on the LIS pin for programming the output
current, and, at the same time, by an ADCs (Analog to
Digital Converters) to measure the voltage on the LIO pin
for monitoring the output current.