ALED6001

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Automotive grade PWM-dimmable single channel LED driver with integrated boost controller

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Product overview

Description

The ALED6001 is an automotive-grade (AECQ100 compliant) LED driver that combines a boost controller and high-side current sensing circuitry optimized for driving one string of high-brightness LEDs. The device is compatible with multiple topologies such as boost, SEPIC and floating load buck-boost. PWM dimming of the LED brightness is achieved by means of an external MOSFET in series with the LED string and directly driven by a dedicated pin. The pin that manages the LED current setting, usually connected to an external resistor, can also be used as analog control if a microcontroller is located in the LED module. The high-side current sensing, in combination with a P-channel MOSFET, provides effective protection in case the positive terminal of the LED string is shorted to ground. The high precision current sensing circuitry allows an LED current regulation reference within ± 4% accuracy over the entire temperature range and production spread. A fault output (open-drain) informs the host system of faulty conditions: device overtemperature, output overvoltage (disconnected LED string) and LED overcurrent.

  • All features

    • AECQ100 qualification
    • Switching controller section
      • 5.5 V to 36 V input voltage range
      • Very low shutdown current: ISHDN < 10 μA
      • Internal +5 V LDO for gate driver supply
      • Internal +3.3 V LDO for device supply
      • Fixed frequency peak current mode control
      • Adjustable (100 kHz to 1 MHz) switching frequency
      • External synchronization for multi-device applications
      • High performance external MOSFET driver
      • Cycle-by-cycle external MOSFET OCP
      • Fixed internal soft-start
      • Programmable output OVP
      • Boost, buck-boost and SEPIC topologies supported
      • Thermal shutdown with autorestart
      • Output short-circuit detection
    • LED control section
      • Up to 60 V output voltage
      • Constant current control loop
      • High-side output current sensing circuitry
      • 30 to 300 mV differential sensing voltage
      • ± 4% output current reference accuracy
      • Output overcurrent protection
      • Sensing resistor failure protection
      • PWM dimming with auxiliary series switch
      • Analog dimming
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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ALED6001TR
Active
HTSSOP16 Automotive Ecopack2

ALED6001TR

Package:

HTSSOP16

Material Declaration**:

More Info

Marketing Status

Active

Package

HTSSOP16

Grade

Automotive

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors

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