High Voltage Constant Current 4A Laser Driver

Part Number Price Buy Now Datasheet
ATLS4A214 $79 buy now Buy Now Datasheet
Evaluation Board for ATLS4A214 Price Buy Now Datasheet
ATLS214EV1.0 $25 buy now Buy Now Datasheet

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Power Supply Voltage VPS Range: 5V~14V

Full Swing Output Voltage: 0.2VVPS to 0.8VVPS (input voltage)

Maximum Output Current: 4A

High Efficiency: 92% - no heat sink is needed (IOUT=4A@VLDA=10V&VVPS=15V)

Wide Modulation Bandwidth: DC~10kHz

Dual Independent Current Set Ports

Direct Digital Modulation Control

Three Control States: Shutdown, Standby and Operation

Very Low Output Current Noise: 6.07μA@0.1Hz~10Hz

High Current Stability: < ±600μA@4A &-20°C~80°C

Low Output Ripple Voltage: < 4mV@500kHz

Fully Shielded

Both DIP and SMT Packages Available

Compact Size: 27.4×21×5.7 (mm)

100 % Lead (Pb)-free and RoHS Compliant


This laser driver, ATLS4A214, is an electronic module that has all the valuable and important, but often difficult to achieve simultaneously, features simultaneously: wide input and output voltage range, high output current capability, high efficiency, low output noise (but it has an output 4mVpp ripple voltage at 500kHz), wide modulation bandwidth, and small size.