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4

Analog Technologies

ATLS25A219GUI

32V 25A Constant Current Laser Driver

Note: Other pins will be displayed on the computer.

Temperature

(°C)

by using a regional

equation (2)

by using an

approximating

equation(4)

−40

2.5420

2.5811

0

2.1231

2.1371

25

1.8557

1.8596

40

1.6931

1.6931

80

1.2520

1.2491

100

1.0272

1.0271

125

0.7424

0.7496

SPECIFICATIONS

°C)

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Units

Power Supply Input: VPS pin, pin 1

Input Range

12

40

V

Output current

A

0

25

A

Laser Current Setting Voltage: LISH pin and LISL pin, pin 11&12

Laser current control signal

0

4.096

V

Control accuracy

±0.1

%

Voltage Reference: 4VR pin, pin 9

Reference output voltage

3.996

4

4.004

V

Laser Diode Anode: LDA pin, pin 4

Output voltage range

Frequency is 500kHz

Standby and Shutdown Control: SBDN pin, pin 14

Start-up time upon releasing the SBDN

pin above 2.7V

20

ms

Shutdown time upon pulling the SBDN

pin down

20

µs

Power efficiency

90

%

Low frequency output current noise

Peak-to-peak value,

0.1Hz to 10Hz

<20

Stability

25A&

−20°C~80°C

<

±0.2

%

25A&

−20°C~80°C

<

±20

mA