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Copyrights 2000-2022, Analog Technologies, Inc. All Rights Reserved. Updated on 1/25/2022 Email: staff@analogti.com/sales@analogti.com 1 Analog Technologies AAS100A5V1 High Efficiency AC Input 100A 5V Laser Driver High Efficiency AC Input 100A 5V Laser Driver Figure 1. Top View of the AAS100A5V1
FEATURES
High efficiency: ≥ 85% Maximum output current: 100A Wide output voltage: 0V ~ 5V Wide input voltage: 100VAC ~ 240VAC High speed digital modulation: 2kHz Configurable output current and voltage limit Configurable digital modulation valley current Low temperature rise: 30C Over-temperature protection Operating temperature: 20C ~ 50C MBTF (Mean Time Before Failure): 180,000 hours The ripple noise at 600kHz: <24mVP-P Compact size Low cost 100 % lead (Pb)-free and RoHS compliant
APPLICATIONS
Driving diode lasers with high current and high stability, such as fiber lasers, diode laser bars, etc. DESCRIPTIONS The AAS100A5V1 is an electronic power supply block designed for driving diode lasers with up to 100A low noise current. The output current can be set by an analog voltage of 0V to 5V, an external potentiometer, or an internal potentiometer, to between 0A and 100A. A pulsed output current can be generated by controlling the PCN port with a digital signal, under which, the peak output current is set by the LISH port while the valley output current is set by the LISL port. The modulation frequency can go up to 2kHz, resulting to an approximately 200 S rise/fall time at the output current. The AAS100A5V1 laser driver comes with a high stability low noise 4V reference voltage. It can be used for setting the output current and maximum output voltage. This reference can also be used as the voltage reference for external ADCs (Analog to Digital Converters) and DACs (Digital to Analog Converters), which might be used for monitoring and/or setting the laser current and maximum output voltage, the so-called compliance voltage. This laser driver block is highly efficient: its efficiency is ≥ 85%. It saves energy and has low temperature rise. " " " There is an over-temperature protection circuit inside, in case the laser power supply temper ature exceeds the temperature limit, 85C, the laser driver will shut down itself and be turned back on by itself after the temp erature returns to the normal temperature range. There is a soft-start circuit in this laser driver, which ensures smooth current transactions during power-up periods. In case there is a short circu it at the output, the internal protection circuit will cut off the output. The output voltage is automatically set from 0V to 5V to keep the output current at a pre-set value. The maximum voltage can be set by a potentiometer to between 0V and 5V. When the output voltage hits this set maximum value, the output voltage remains to be the maximum value and output current stop following the set value, the laser driver will be working under constant voltage mode. The control loop is monitored in real time by an internal circuit, to make sure that it works properly. The monitoring result is sent to the LPGD node. When this pin is pulled up internally, it indicates that the control loop works properly and Loop Good LED will be lit. This pin signal can be sent to a microcontroller, or used for driving an LED through a buffer. The internal equivalent circuit of this pin is a 5k pull-up resistor in parallel with an open drain comparator output. The main specifications are shown in Table 1 below.
The functions of all the pins in Con 1 are described in Table 2 below. Table 2. Pin Function Description for Con 1 and Con 2 Connectors 1 INTL Interlock Digital input Connect to a safety interlock switches. Open circuit = off, short to GND = run. 2 GND Ground Analog ground Connect power grounds here.
3 LDAV
diode anode. The internal resistance is 10k.
4 TEMPO Temperature
driver. See section C for details. 5 EN Enable Digital input Internally pulled up to 5V by a 100k resistor. Pulling this pin to GND will disable the driver.
6 LIO Laser current
output current being 0 to 100A linearly.
7 LISH Laser current set Analog input
pin sets the output peak current.
8 PCN Pulse control Digital input
LISL port or the internal LISL POT. voltage Analog output A 5V reference voltage. 10 AGND Ground Signal ground Connect ADC and DAC grounds here.
11 LIOPK
current of 0 to 100A linearly.
12 LISL Laser valley
14 LPGD Loop good
loop is working properly, otherwise, not properly.
15 SYNC Synchronization
square wave should be between 500k and 600kHz.
1 LDC Laser diode
cathode Power output Connect it to the cathode of the laser diode.
2 LDA Laser diode
anode Power output Connect it to the anode of the laser diode. Table 3. Copper Wire Specification 45A linearly by setting LISH pin from 0V to 5V. modulation frequency is 2kHz. See Figure 3. Figure 3. Digitally Controlled Analog Modulation Principle LIOPK will not have the function of indication. Figure 4 is the mathematic model of the LIOPK’s waveform.
Figure 19. Mechanical Dimensions Company code: Analog Technologies, Inc.
Copyrights 2000-2022, Analog Technologies, Inc. All Rights Reserved. Updated on 1/25/2022 Email: staff@analogti.com/sales@analogti.com 10 Analog Technologies AAS100A5V1 High Efficiency AC Input 100A 5V Laser Driver NOTICE 1. ATI warrants performance of its products for one year to the sp ecifications applicable at the time of sale, except for those being damaged by excessive abuse. Products found not meeting th e specifications within one year from the date of sale can be exchanged free of charge. 2. ATI reserves the right to make changes to its products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant informatio n to verify, before placing orders, that information being relied on is current and complete. 3. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those pertaining to warranty, patent infringement, and limitation of liability. Testing and other quality control techniques are utilized to the extent ATI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. 4. Customers are responsible for their applications using ATI components. In order to minimize risks associated with the customers’ applications, adequate design and operating safeguards must be provided by the customers to minimize inherent or procedural hazards. ATI assumes no liability for applications assistance or customer product design. 5. ATI does not warrant or represen t that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of ATI covering or relating to any combination, machine, or process in which such products or services might be or are used. ATI’s publication of information regarding any third party’s products or services does not constitute ATI’s approval, warranty or endorsement there of. 6. IP (Intellectual Property) Ownership: ATI retains the ownership of full rights for special technologies and/or techniques embedded in its products, the designs for mechanics, optics, plus all modifications, improvements, and inventions made by ATI for its products and/or projects.