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AL8821

50V, 2A BOOST LED DRIVER

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Description

The AL8821 is a boost converter that delivers an accurate constant current for MR16 and similar LED Lamps. With proprietary control scheme, the LED driver is compatible with many commonly used electronic transformers and provides designs with High Power Factor (PF) and low Total Harmonic Distortion (THD) for these applications. The operation frequency is up to 1MHz that allows the use of small size inductor. With the package of SO-8EP, the AL8821 has small thermal resistance and can be used for wide range of output power. The driver can be used for dimmable MR16 application and can be compatible with leading-edge dimmer and trailing-edge dimmer.

Feature(s)

  • Wide Input Voltage Range: 5V to 36V
  • Internal 40V NDMOS Switches
  • Continuous Conduction Mode (CCM) Operation
  • Up to 1MHz Switching Frequency
  • High PF > 0.9 and Low THD < 30% and low Ripple < 20%
  • Compatible With Leading-edge Dimmer And Trailing-edge Dimmer
  • Internal Protections
  • Under Voltage Lock Out (UVLO)
  • Output Open
  • Over Temperature Protection (OTP)

Application(s)

  • Non-dimmable MR16 Lamps
  • Dimmable MR16 Lamps
  • General Illumination Lamps

Product Specifications

Product Parameters

AEC Qualified No
Compliance (Only Automotive supports PPAP) Standard
Topologies (Buck) No
Topologies (Buck-Boost) No
Topologies (Boost) Yes
MinimumInput Voltage (V) 5 V
MaximumInput Voltage (V) 36 V
Maximum Output Voltage (V) 36 V
Maximum LED Current (A) 1 A
LED Current Accuracy (%) 5 %
Switching Frequency Maximum (kHz) 1000 kHz
Dimming (PWM) No
Dimming (Analog) No
Efficiency (%) 85 %
OperatingTemperatureRange  (°C) -40 to 105 °C
Sense Voltage (mV) 100 mV
AEC-Q100 Grade No

Related Content

Packages

Applications

Technical Documents

SPICE Model

Recommended Soldering Techniques

TN1.pdf

Orderable Part Number Buy from Distributor / Contact Sales Request Samples
AL8821SP-13

AL8821SP-13

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Farnell, An Avnet Company 3758 10/3/2022 England Buy Now
Digi-Key Electronics 39898 10/2/2022 Europe, Asia, North America Buy Now
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Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2512 2021-04-16 2021-07-16 Qualified Additional Assembly & Test (A/T) Site