Diodes Incorporated — Analog and discrete power solutions
U QFN4040 16 SWP

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. U-QFN4040-16/SWP (Type UXB)

U QFN4040 16 SWP

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. U-QFN4040-16/SWP (Type UXB)

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AL3069Q

Automotive Display LED-Backlight Driver

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Description

The AL3069Q is a high-efficiency 60V boost controller including four 80V high-precision current sink channels and fault diagnostics for LED backlight applications. Boost with built-in adaptive voltage control operates over a wide input-voltage range from 4.5V to 60V. Its operating frequency can be adjusted from 100kHz to 1MHz.

The four channel current is simply programmed with an external resistor. The current match between any channels is ±0.5% (typical).

Extensive fault diagnostic and robust protection features include cycle by cycle current limit, soft-start, UVLO, programmable OVP, OTP, open/short LED protection, Schottky diode short and open protection, inductor short-circuit protection, VOUT short protection, and fault indicator (FAULTB) pin, which are designed for automotive applications to improve system robustness.

The AL3069Q is available in the TSSOP-16EP (Type DX) and UQFN4040-16/SWP (Type UXB) packages. It is qualified to AEC-Q100 Grade 1 and is automotive grade to support PPAPs.

Feature(s)

  • AEC-Q100 Grade 1 Qualified
  • Boost or SEPIC DC/DC Controller
  • Input-Voltage Range: 4.5V to 60V
  • High-Voltage Pins CS and OVP for Safety Test
  • Switching Frequency 100kHz to 1MHz
  • Built-In Adaptive Voltage Feedback
  • Four High-Precision Current Sinks
  • 250mA per String, 400mA Pulse Current
  • Typical ±0.5% Channel to Channel Current Matching
  • Supports Direct PWM Dimming
  • Minimum PWM Dimming Duty Cycle Achieved 1/5000 at 100Hz Dimming Frequency
  • Extensive Fault Diagnostics
  • Open-Drain Fault Report Pin
  • LED Open/Short Protection
  • Schottky Diode/Inductor Short-Circuit Protection
  • Built-In OCP, OVP, OTP, UVLO
  • VOUT Short/Schottky Diode Open Protection
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • The AL3069Q is suitable for automotive applications requiring specific change control; this part is AEC-Q100 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. https://www.diodes.com/quality/product-definitions/

Application(s)

LED-backlight drivers for:

  • Automotive infotainment
  • Automotive instrument clusters
  • Smart mirrors
  • Heads-up displays (HUD)

Specifications & Technical Documents

Product Parameters

AEC Qualified

Yes

Compliance (Only Automotive Supports PPAP)

Automotive

Function

Boost LED Driver-Controller

MinimumInput Voltage (V)

4.5 V

MaximumInput Voltage (V)

60 V

Maximum Output Voltage (V)

External MOSFET V

Number of Regulated Output Channels

4

Maximum Output Current per Channel

400 mA mA

Typical Overcurrent Protection Current

540/RCS mA

Switching Frequency (MHz)

adjustable 0.1M to 1M MHz

Efficiency (%)

up to 95 %

Quiescent Current (µA)

3000 mA

Standby Quiescent Current (µA)

1 µA

SW RDS(ON)

External MOSFET Ω

Dimming

direct PWM

OVP

Yes

Soft Start

Yes

VFB

N/A V

OperatingTemperatureRange  (°C)

-40 to 125 °C

Technical Documents

Recommended Soldering Techniques

TN1.pdf

Purchase & Availability