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Description

The AL8807 is a step-down DC/DC converter designed to drive LEDs with a constant current. The device can drive up to 8 LEDs, depending on the forward voltage of the LEDs, in series from a voltage source of 6V to 36V. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors. The AL8807 switches at frequency up to 1MHz. This allows the use of small size external components, hence minimizing the PCB area needed. Maximum output current of AL8807 is set via an external resistor connected between the VIN and SET input pins. Dimming is achieved by applying either a DC voltage or a PWM signal at the CTRL input pin. An input voltage of 0.4V or lower at CTRL switches off the output MOSFET simplifying PWM dimming. It is available in SOT25 and the increased thermally capable MSOP-8EP.

Application

  • MR16 lamps
  • General illumination lamps

Features

  • MR16 lamps
  • General illumination lamps
  • 36V 1A LED drive capability - Drives up to 8 LED in series and provides cost effective solution for MR16 and other 12V AC/DC systems • 5% initial average LED current accuracy - Meets accuracy requirements of most lighting apps at cost effective price and improves inter-channel matching. • Simple digital PWM dimming with DC dimming on the CTRL pin - Provides flexible scheme to users with different dimming methods: DC for thermal control, PWM for brightness control • High switching frequency up to 1MHz - Reduces inductor value - reducing size of solution
  • Small footprint packages with only 4 external components - High power density small PCB footprint solution

Product Specifications

Product Parameters

Qualified to AECQ10x Yes
Automotive Compliant PPAP AL8807Q
Topologies (Buck) Yes
Topologies (Buck-Boost) No
Topologies (Boost) No
Minimum Input Voltage 6 V
Maximum Input Voltage 36 V
Maximum Output Voltage 36 V
Maximum LED Current 1.3 A
LED Current Accuracy 5 %
Switching Frequency Maximum 1000 kHz
Dimming (PWM) Yes
Dimming (Analog) Yes
Efficiency 98 %
Operating Temperature Range -40 to 125 °C
Sense Voltage 100 mV
AEC-Q100 Grade No

Related Content

Packages
MSOP-8EP
SOT25

Orderable Part Number Authorized Distributor Quantity Inventory Date Buy Online Region
AL8807AMP-13 Arrow Electronics 4 10/19/2019 Buy Now United States
AL8807AMP-13 Mouser Electronics Inc. 2573 10/19/2019 Buy Now United States
AL8807AMP-13 Digi-Key Electronics 2532 10/18/2019 Buy Now United States
AL8807AMP-13 Future Electronics 7500 10/18/2019 Buy Now Canada
AL8807AMP-13 RS Components 4735 10/18/2019 Buy Now England
AL8807AMP-13 RS Components Ltd. 4735 10/18/2019 Buy Now Japan
AL8807AW5-7 Mouser Electronics Inc. 3298 10/19/2019 Buy Now United States
AL8807AW5-7 Digi-Key Electronics 3099 10/18/2019 Buy Now United States
AL8807BMP-13 Arrow Electronics Central EU 2490 10/19/2019 Buy Now Germany
AL8807BMP-13 Mouser Electronics Inc. 5619 10/19/2019 Buy Now United States
AL8807BMP-13 Digi-Key Electronics 2517 10/18/2019 Buy Now United States
AL8807BQMP-13 Mouser Electronics Inc. 1804 10/19/2019 Buy Now United States
AL8807BQMP-13 Digi-Key Electronics 1535 10/18/2019 Buy Now United States
AL8807EV1 Digi-Key Electronics 2 10/18/2019 Buy Now United States
AL8807EV2 Digi-Key Electronics 2 10/18/2019 Buy Now United States
AL8807EV3 Digi-Key Electronics 2 10/18/2019 Buy Now United States
AL8807EV4 Digi-Key Electronics 2 10/18/2019 Buy Now United States
AL8807MP-13 Avnet EU 5000 10/19/2019 Buy Now Germany
AL8807MP-13 Arrow Electronics 2500 10/19/2019 Buy Now United States
AL8807MP-13 Arrow Electronics 440000 10/19/2019 Buy Now United States
AL8807MP-13 Arrow Electronics Central EU 2500 10/19/2019 Buy Now Germany
AL8807MP-13 Farnell, An Avnet Company 2020 10/19/2019 Buy Now England
AL8807MP-13 Mouser Electronics Inc. 25220 10/19/2019 Buy Now United States
AL8807MP-13 Digi-Key Electronics 185050 10/18/2019 Buy Now United States
AL8807MP-13 Future Electronics 2150 10/18/2019 Buy Now Canada
AL8807MP-13 Future Electronics - Asia 20000 10/18/2019 Singapore
AL8807MP-13 RS Components 130 10/18/2019 Buy Now England
AL8807MP-13 RS Components Ltd. 50 10/18/2019 Buy Now Japan
AL8807MP-13 CEAC International Ltd. 25 9/23/2019 China
AL8807QMP-13 Mouser Electronics Inc. 1088 10/19/2019 Buy Now United States
AL8807QMP-13 Digi-Key Electronics 3231 10/18/2019 Buy Now United States
AL8807W5-7 Arrow Electronics Central EU 9000 10/19/2019 Buy Now Germany
AL8807W5-7 Mouser Electronics Inc. 2543 10/19/2019 Buy Now United States
AL8807W5-7 Digi-Key Electronics 11777 10/18/2019 Buy Now United States
AL8807W5-7 Future Electronics 3000 10/18/2019 Buy Now Canada
AL8807W5-7 Future Electronics - Europe 9000 10/18/2019 England
AL8807W5-7 RS Components 140 10/18/2019 Buy Now England
AL8807W5-7 RS Components Ltd. 100 10/18/2019 Buy Now Japan
AL8807W5-7 Rutronik GmbH 3000 10/17/2019 Buy Now Germany