AL5809EV1-XXX DIODES | Alldatasheet
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Technical content
15-150mA 60V Constant Current Regulator AL5809EV1-XXX Rev1 Page 1 of 12 February 2015 www.diodes.com General Description The AL5809 is a two terminal constant current linear LED driver and it pr ovides a cost-effective solution. It offers an excellent temperature stability 20 pp m/⁰C and the current accuracy ±5 % regulated over a wide voltage range. The AL5809 simplifies the design for linear LED drivers allowing it to be designed as a high or low - side constant current regulator without any external components. The AL5809 turns on im mediately and can swing from 2.5V up to 60V enabling it drive long LED chains. The floating ground, 60V Voltage rating between Input and Output pins designed to withstand the high peak voltage incurred in DC and offline applications. The AL5809EV1-XXX (from 15 to 150 mA) is available in thermally robust POWERDI -123 package with different current options, please see ordering information section. Key Features Low Minimum Operating Voltage (2.5V to 60V) -40˚C to 125˚C Temperature Range ±5% LED Current Accuracy PDI-123 package
Applications
Constant LED Current Driver Isolated Offline LED Converters LED Signs Instrumentation Illumination Specifications Parameter Value Input Voltage 2.5V – 60V LED Current Options 15 to 150mA XYZ Dimension 0.69” x 0.77” x 0.1” ROHS Compliance Yes Top-View EVM (AL5809EV1) AL5809EV1 (PDI123) Bottom-View EVM (AL5809EV1) Connection Instructions Input Voltage: Red Wire (DC+) Ground: Black Wire (DC-) IN: White Wire (LED connection) OUT: Black Wire
15-150mA 60V Constant Current Regulator AL5809EV1-XXX Rev1 Page 2 of 12 February 2015 www.diodes.com Board Layout (a) Top View (b) Bottom View Note: This evaluation board provides design flexibility, multiple application circuits can be derived in both Low and High Side Current LED configurations. The footprint of U1 is compatible to both of PDI-123 and SOD -123 packages. In addition, it can be ho oked up with use of PWM dimming.
15-150mA 60V Constant Current Regulator AL5809EV1-XXX Rev1 Page 3 of 12 February 2015 www.diodes.com Connection Setup and Power-up Procedures I) Current LED String Procedure to Evaluation Board in Low side current LED configuration Vcc (Power Supply) External LED String IN OUT XX Y W X AL5809 “DC+” Wire IN Wire “DC-“ Wire OUT Wire 1. Depends on the current options, the evaluation board is as low side current LED configuration. 2. Ensure that the DC source is switched OFF or disconnected. 3. Connect the power supply to DC+ and DC- terminals on the board. 4. Connect the Anode and Cathode terminals of external LED string between DC+ wire and IN terminal of the board in the Low side LED configuration. 5. Connect the “DC-“ wire to OUT terminal of the board and connect to GND. 6. Ensure that the area around the board is clear and safe, and preferably that the board and LEDs are enclosed in a transparent safety cover. 7. Turn on the main switch. LED string should light up and the LED current should be regulated according to the current options of the device.
15-150mA 60V Constant Current Regulator AL5809EV1-XXX Rev1 Page 4 of 12 February 2015 www.diodes.com II) Current LED String Procedure in High side current LED configuration External LED String Vcc (Power Supply) IN OUT XX Y W X AL5809 “DC+” Wire IN Wire “DC-“ Wire OUT Wire 1. The evaluation can also be configured as High side current LED configuration. 2. Ensure that the DC source is switched OFF or disconnected. 3. Connect the power supply to DC+ and DC- terminals on the board. 4. Connect the DC+ wire of the board to IN terminal wire on the board. 5. Connect the Anode and Cathode terminals of external LED string between OUT terminal and DC- wire of the board in the High side LED configuration. 6. Connect the DC- wire to the GND of the DC power supply. 7. Observe MAX 60V differential between IN and OUT terminals when applied Vcc > 60V. 8. In the high side circuit configuration, extreme high voltage may be present. Please use caution and try not to touch any components on the board or input leads. 9. Turn on the main switch. LED string should light up and the LED current should be regulated according to the current options of the device.
15-150mA 60V Constant Current Regulator AL5809EV1-XXX Rev1 Page 5 of 12 February 2015 www.diodes.com Bill of Material # Name Quantity Part number Manufacturer Description
1 U1 1 AL5809-xxxP1-7 Diodes Inc Constant Current Regulator in PDI123
Ordering Information
7 : Tape & ReelP1 : PDI123 S1 : SOD-123 Current Option 15 : 15mA 20 : 20mA 30 : 30mA 40 : 40mA 50 : 50mA 60 : 60mA (PDI123 only) 90 : 90mA (PDI123 only) 120 : 120mA (PDI123 only) 150 : 150mA (PDI123 only) Part Number LED Current Option Package Identification Code AL5809-15P1-7 15mA PDI123 C1 AL5809-20P1-7 20mA PDI123 C2 AL5809-30P1-7 30mA PDI123 C3 AL5809-40P1-7 40mA PDI123 C4 AL5809-50P1-7 50mA PDI123 C5 AL5809-60P1-7 60mA PDI123 C6 AL5809-90P1-7 90mA PDI123 C7 AL5809-120P1-7 120mA PDI123 C8
15-150mA 60V Constant Current Regulator AL5809EV1-XXX Rev1 Page 6 of 12 February 2015 www.diodes.com AL5809-150P1-7 150mA PDI123 C9 AL5809-15S1-7 15mA SOD-123 D1 AL5809-20S1-7 20mA SOD-123 D2 AL5809-30S1-7 30mA SOD-123 D3 AL5809-40S1-7 40mA SOD-123 D4 AL5809-50S1-7 50mA SOD-123 D5
Application Information
The AL5809 can be used to provide LED current dimming driving the Out pin via the MOSFET switch to ground. The Out pin current is then effectively switched on and off causing the LED current to turn on and off PWM_DIM IN OUT XX Y W X 2AL5809 C1=0.1uF/100V Vcc (Power Supply) “DC+” wire IN Wire “DC-” wire OUT Wire External LED String External LED String Vcc (Power Supply) IN OUT XX Y W X AL5809 “DC+” Wire IN Wire “DC-“ Wire OUT Wire C1=0.1uF/100V PWM ON/OFF Switch (a) PWM Dimming by External MOSFET (b) PWM Dimming by Power Supply VIN ON/OFF
15-150mA 60V Constant Current Regulator AL5809EV1-XXX Rev1 Page 7 of 12 February 2015 www.diodes.com 1. The evaluation board can be configured as Low side current LED configuration with use of PWM dimming. 2. Ensure that the DC source is switched OFF or disconnected. 3. Connect the DC line wires of power supply to DC+ wire and DC- wire terminals on the board. 4. Connect the Anode and Cathode terminals of external LED string between DC+ wire and IN terminal of the board in the Low side LED configuration. 5. Connect the Anode and Cathode terminals of external LED string between OUT terminal and DC- wire of the board in the High side LED configuration. 6. Connect the “DC-“ wire of the board to GND. 7. Insert external MOSFET across OUT terminal and GND of the board for PWM dimming control. 8. Ensure that the area around the board is clear and safe, and preferably that the board and LEDs are enclosed in a transparent safety cover. 9. Turn on the main switch. LED string should light up and the LED current should be regulated according to the current options of the device.
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15-150mA 60V Constant Current Regulator AL5809EV1-XXX Rev1 Page 12 of 12 February 2015 www.diodes.com