|Title||LED LINEAR DRIVER SOT25|
Diodes' AL5815 and AL5816 are adjustable, constant current, LED linear controllers offering excellent temperature stability and current capability. They can work with a wide input voltage range from 4.5 V to 60 V. With its low 200 mV current sense feedback (FB) voltage, it controls the regulation of LED current with minimum power dissipation compared with traditional linear LED drivers. This makes it ideal for medium to high current LEDs. The device has an internal output drive up to 15 mA, which enables it to drive external bipolar transistors or MOSFETs. The AL5815 has an enable (ENB) pin. ENB low enables the device; ENB high puts the device into a low quiescent current shutdown state. If high speed dimming is required, the AL5816 has a pulse width modulation (PWM) pin. This device can run at frequencies greater than 20 kHz. AL5815 and AL5816 are available in the SOT25 package.
|Datasheet||Download AL5815W5-7 datasheet
|Others parts numbering|
The AL5815 and AL5816 are 5-terminal adjustable constant current linear LED controllers offering excellent temperature stability and current capability. They can work with a wide input voltage range from to 60V. With its low 200mV current sense FB voltage, it controls the regulation of LED current with minimum power dissipation compared with traditional linear LED drivers. This makes it ideal for medium to high current LEDs.
The device has an internal output drive to 15mA, which enables it to drive external Bipolar transistors or MOSFETs. It also provides the capability to drive longer LED chains with low drop out voltage and multiple LED channels. AL5815 and AL5816 have their LED current adjusted and controlled by a sense resistor connected across FB pin and GND. The voltage across this resistor is controlled to a precise 0.2V thus controlling the current. The AL5815 has an enable (ENB) pin. Bringing ENB low to enable the device and turn on external transistor. Bringing ENB high puts the device into a low quiescent current shutdown state. The AL5815 has a turn on delay built in which makes sure there is not a high current surge at startup. The average LED current can be adjusted by applying a low frequency PWM signal less than 200Hz to the ENB pin. If PWM dimming higher than 200Hz is required the AL5816 has replaced the enable pin with a PWM pin. This device can run at frequencies greater than 200Hz. AL5815 and AL5816 are available in SOT25 package.Applications
Commercial and Industrial Lighting Exterior Lighting Appliance Lights
Wide Input Voltage Range from to 60V Low Reference Voltage (VFB 0.2V) 3% Reference Voltage Tolerance over Temperature to 15mA Driver Capability for Bipolar Transistor Low Standby Current for AL5815 PWM dimming frequency higher than 200Hz for AL5816 Input Under Voltage Lock-out Over Temperature Shutdown Totally Lead-Free & Fully RoHS Compliant (Notes & 2) Halogen and Antimony Free. "Green" Device (Note 3)
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated's definitions of halogen- and antimony-free "green" and lead-free. 3. Halogen- and antimony-free "green" products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds.
Pin Number Pin Name ENB (AL5815) PWM (AL5816) GND FB OUT VCC Function Chip Enable, Active Low (Can be Used for Low Frequency Dimming) PWM Signal for High Frequency Dimming of the LED Ground Feedback Input, Regulates to 200mV Nominal Driving Output to External Transistors Input Supply Power
Parameter Supply Voltage Relative to GND IC Supply Current OUT, FB Relative to GND Enable Pin of AL5815 Relative to GND PWM Pin of AL5816 Relative to GND Operating Ambient Temperature Operating Junction Temperature Storage Temperature
4. Stresses greater than the Absolute Maximum Ratings specified above may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at conditions between maximum recommended operating conditions and absolute maximum ratings is not implied. Device reliability may be affected by exposure to absolute maximum rating conditions for extended periods of time.Symbol VESD Human-Body Model (HBM) Charged-Device Model(CDM) Parameter Rating 2000 1000 Unit V
Symbol VCC VOUT IOUT TJ VIH(AL5815) VIL VIH(AL5816) VIL(AL5816) OUT Voltage Range OUT Pin Current Operating Ambient Temperature Operating Junction Temperature High-Level Input Voltage on ENB Low-Level Input Voltage on ENB High-Level Input Voltage on PWM Low-Level Input Voltage on PWM Parameter Supply Voltage Range Relative to GND Pin Min Max Unit V mAParameter Junction-To-Ambient Thermal Resistance Junction-To-Case(Top) Thermal Resistance
5. Device mounted 1''x1'' FR-4 MRP substrate PC board, 2oz cooper, with minimum recommended pad layout. No thermal via and no ground plane.
|Some Part number from the same manufacture Diodes, Inc.|
Diodes' AL5815 and AL5816 are adjustable, constant current, LED linear controllers offering excellent temperature stability and current capability. They can work with a wide input voltage range from