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al5809ev1 - xxx user guide 15 - 150ma 60v constant current regulato r 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/?c 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 al5809 ev1 - xxx ( fr om 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 ( 2.5 v 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 C 6 0v led current options 15 to 150 ma xy z dimension 0.6 9 x 0.7 7 x 0.1 rohs compliance yes top - view evm ( al5809ev1 ) al5809ev1 ( pdi123 ) bottom - view evm (al5809ev1) connection instructions input voltage : red wire (dc+) ground : b lack wire (dc - ) in : white wire (led connection) out: black wire
al5809ev1 - xxx user guide 15 - 150ma 60v constant current regulato r al5809ev1 - xxx rev1 page 2 of 12 february 2015 www.diodes.com board layout (a) top view (b) bottom view note: t his 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 .
al5809ev1 - xxx user guide 15 - 150ma 60v constant current regulato r al5809ev1 - xxx rev1 page 3 of 12 february 2015 www.diodes.com connection setup and power - up procedur e s i) current led string procedure to evaluation board in low side current led configuration 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 + a nd 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 option s of the device. v c c ( p o w e r s u p p l y ) e x t e r n a l l e d s t r i n g i n o u t x x y w x 1 2 a l 5 8 0 9 d c + w i r e i n w i r e d c - w i r e o u t w i r e u 1
al5809ev1 - xxx user guide 15 - 150ma 60v constant current regulato r al5809ev1 - xxx rev1 page 4 of 12 february 2015 www.diodes.com i i ) current led string procedure in high side current led configuration 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 b oard. 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 vo ltage 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 . e x t e r n a l l e d s t r i n g v c c ( p o w e r s u p p l y ) i n o u t x x y w x 1 2 a l 5 8 0 9 d c + w i r e i n w i r e d c - w i r e o u t w i r e u 1
al5809ev1 - xxx user guide 15 - 150ma 60v constant current regulato r 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 part number led current option package identification code al5809 - 15 p1 - 7 15ma pdi123 c 1 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 a l 5 8 0 9 - x x x x x - 7 p a c k i n g p a c k a g e 7 : t a p e & r e e l p 1 : p d i 1 2 3 s 1 : s o d - 1 2 3 c u r r e n t o p t i o n 1 5 : 1 5 m a 2 0 : 2 0 m a 3 0 : 3 0 m a 4 0 : 4 0 m a 5 0 : 5 0 m a 6 0 : 6 0 m a ( p d i 1 2 3 o n l y ) 9 0 : 9 0 m a ( p d i 1 2 3 o n l y ) 1 2 0 : 1 2 0 m a ( p d i 1 2 3 o n l y ) 1 5 0 : 1 5 0 m a ( p d i 1 2 3 o n l y )
al5809ev1 - xxx user guide 15 - 150ma 60v constant current regulato r al5809ev1 - xxx rev1 page 6 of 12 february 2015 www.diodes.com al5809 - 150p1 - 7 150ma pdi123 c9 al5809 - 15 s1 - 7 15ma sod - 123 d 1 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 pwm dimming 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 (a) pwm dimming by external mosfet (b) pwm dimming by power supply vin on/off p w m _ d i m i n o u t x x y w x 1 2 a l 5 8 0 9 c 1 = 0 . 1 u f / 1 0 0 v v c c ( p o w e r s u p p l y ) d c + w i r e i n w i r e d c - w i r e o u t w i r e e x t e r n a l l e d s t r i n g u 1 e x t e r n a l l e d s t r i n g v c c ( p o w e r s u p p l y ) i n o u t x x y w x 1 2 a l 5 8 0 9 d c + w i r e i n w i r e d c - w i r e o u t w i r e c 1 = 0 . 1 u f / 1 0 0 v u 1 p w m o n / o f f s w i t c h
al5809ev1 - xxx user guide 15 - 150ma 60v constant current regulato r 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 wire s of power supply to dc+ wire and dc - wire terminals on the b oard. 4. connect the anode and cathode terminal s of external le d string between dc+ wire and in terminal of the board in the low side led configuration . 5. connect the ano de and cathode terminal s of external led string between out terminal and dc - wire of the board in the high side led configuration. 6. connect the dc - wi re 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 .
al5809ev1 - xxx user guide 15 - 150ma 60v constant current regulato r al5809ev1 - xxx rev1 page 8 of 12 february 2015 www.diodes.com typica l performance curves - 15ma, 20ma, 30ma, 40ma, and 50ma pdi 123 figure 1. led current vs. vinout figure 3 . led current vs. ambient temperature figure 5 . thsd of 20ma current option figure 2 . startup minimum operating voltage figure 4 led current accuracy ( %) vs. vinout across temp figure 6 . thsd of 40ma current option 0 10 20 30 40 50 60 0 5 10 15 20 25 30 led current [ma] v inout [v] 15ma 20ma 30ma 40ma 50ma t a =25 ? c t a =25 ? c vinout[v] 0 10 20 30 40 50 60 0 0.5 1 1.5 2 2.5 3 led current [ma] v inout [v], t a =25c 15ma 20ma 30ma 40ma 50ma - 10 - 8 - 6 - 4 - 2 0 2 4 6 8 10 0 5 10 15 20 25 30 35 40 45 50 55 60 led current accuracy [%] v inout [v] 15ma_25c 15ma_125c 15ma_ - 40c
al5809ev1 - xxx user guide 15 - 150ma 60v constant current regulato r al5809ev1 - xxx rev1 page 9 of 12 february 2015 www.diodes.com typical performance curves - 60 ma, 9 0ma, and 1 50ma pdi 123 figure 7 . led current vs. vinout figure 9 . led current vs. ambient temperature figure 11 . thsd of 20ma current option figure 8 . startup minimum operating voltage figure 10 led current accuracy ( %) vs. vinout across temp figure 12 . thsd of 40ma current option vinout=3.5 temperature[ ?c] 0 20 40 60 80 100 120 140 160 0 0.5 1 1.5 2 2.5 3 led current [ma] v inout [v] 60ma 90ma 150ma t a =25 ? c
al5809ev1 - xxx user guide 15 - 150ma 60v constant current regulato r al5809ev1 - xxx rev1 page 10 of 12 february 2015 www.diodes.com typical performance characteristics figure 1 3 . power dissipation vs. ambient temperature @ t j = 1 60 ? c figure 15 . maximum vinout vs. temperature figure 17 . pwm dimming 150ma vs. duty cycle figure 14 . maximum vinout vs. temperature figure 16 pwm dimming 90ma vs. duty cycle 0.00 0.25 0.50 0.75 1.00 1.25 1.50 0 25 50 75 100 125 power dissipation (w) ambient temperature ( c) power dissipation [w] vs. ambient temperature [ ?c] for pdi - 123,sod - 123 on fr4, and pdi - 123 on getek sod on fr4 ( max tj=145) pdi on getek ( max tj=145) pdi on fr4 ( max tj=145) 0 5 10 15 20 25 30 35 40 0 25 50 75 100 125 maximum v inout [v] ambient temperature [ c] maximum v inout [v] vs. ambient temperature [ ? c] for current option on pdi fr4 board (referred by apps board fr4, 2 - layer, 0.69"x0.76" size) sod on fr4 15ma sod on fr4 20ma sod on fr4 30ma sod on fr4 40ma sod on fr4 50ma 0 15 30 45 60 75 90 105 120 135 150 0 10 20 30 40 50 60 70 80 90 100 led current [ma ] duty cycle [%] 200hz 500hz 1khz 1.5khz vinout=3v, 150ma 0 10 20 30 40 50 60 0 25 50 75 100 125 maximum v inout [v] ambient temperature [ c] maximum v inout [v] vs. ambient temperature [ ? c] for current option on pdi fr4 board (refered by apps board fr4, 2 - layer, 0.69"x0.76" size) pdi on fr4 15ma pdi on fr4 20ma pdi on fr4 50ma pdi on fr4 90ma pdi on fr4 150ma pdi on fr4 40ma pdi on fr4 60ma
al5809ev1 - xxx user guide 15 - 150ma 60v constant current regulato r al5809ev1 - xxx rev1 page 11 of 12 february 2015 www.diodes.com figure 18 . area zoom in within duty cycle 5% of figure 17 important notice diode incorporated makes no warranty of any kind, express or implied, with regards to this document, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose (and their equivalents under the laws of any jurisdiction). diodes incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. diodes incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does diodes incorporated convey any license under its patent or trademark rights, nor the rights of others. any customer or user of this document or products described herein in such applications shall assume all risks of such use and will agree to hold diodes incorporated and all t he companies whose products are represented on diodes incorporated website, harmless against all damages. diodes incorporated do es not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. should customers purchase or use diodes incorporated products for any unintended or unauthorized application, customers shall indemni fy and hold diodes incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized applicat ion. products described herein may be covered by one or more united states, international or foreign patents pending. product nam es and markings noted herein may also be covered by one or more united states, international or foreign trademarks. this docum ent is written in english but may be translated into multiple languages for reference. only the english version of this document is the final and determinative format released by diodes incorporated. life support diodes incorporated products are specifica lly not authorized for use as critical components in life support devices or systems without the express written approval of the chief executive officer of diodes incorporated. as used herein: a. life support devices or systems are devices or systems whi ch: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the u ser. b. a critical component is any component in a life support device or system whose failure to perform can be reasonably expe cted to cause the failure of the life support device or to affect its safety or effectiveness. customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety - related requirements concerning their products and any use of diodes incorporated products in such safety - critical, life support devices or systems, notwithstanding any devices - or systems - related information or support that may be provided by diodes incorporated. further, customers must fully indemn ify diodes incorporated and its representatives against any damages arising out of the use of diodes incorporated products in such safety - critical, life support devices or systems. copyright ? 2014, diodes incorporated www.diodes.com 0 1 2 3 4 5 6 7 8 9 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 led current [ma] duty cycle [%] 200hz 500hz 1khz 1.5khz vinout=3v, 150ma
al5809ev1 - xxx user guide 15 - 150ma 60v constant current regulato r al5809ev1 - xxx rev1 page 12 of 12 february 2015 www.diodes.com

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