Datasheet AL3069Q (Diodes)

AL3069Q AUTOMOTIVE DISPLAY LED-BACKLIGHT DRIVER Description Pin Assignments
The AL3069Q is a high-efficiency 60V boost controller including four (Top View) 80V high-precision current sink channels and fault diagnostics for LED backlight applications. Boost with built-in adaptive voltage control C H 4 1 16 C H 3 operates over a wide input-voltage range from 4.5V to 60V. Its IS E T ISET 2 15 G N D operating frequency can be adjusted from 100kHz to 1MHz. O V P 3 14 C H 2 R T 4 E xpo sed 13 C H 1 The four channel current is simply programmed with an external P ad E N 5 12 P W M D resistor. The current match between any channels is ±0.5% (typical). C S 6 11 C O M P O U T 7 10 F A U LT B Extensive fault diagnostic and robust protection features include cycle V C C 8 9 V IN VIN by cycle current limit, soft-start, UVLO, programmable OVP, OTP, open/short LED protection, Schottky diode short and open protection, TSSOP-16EP (Type DX) inductor short-circuit protection, VOUT short protection, and fault indicator (FAULTB) pin, which are designed for automotive applications to improve system robustness. (Top View) The AL3069Q is available in the TSSOP-16EP (Type DX) and U- B T QFN4040-16/SWP (Type UXB) packages. It is qualified to AEC-Q100 L U N Grade 1 and is automotive grade to support PPAPs. A I F VI VCC OUT 12 11 10 9
Features
C O M P 13 8 C S • P W M D 14 7 C H 3 AEC-Q100 Grade 1 Qualified E xposed • Boost or SEPIC DC/DC Controller C H 1 15 P ad 6 E N – Input-Voltage Range: 4.5V to 60V C H 2 16 5 R T – High-Voltage Pins CS and OVP for Safety Test 1 2 3 4 – Switching Frequency 100kHz to 1MHz 4 T P – Built-In Adaptive Voltage Feedback H E V GND C SIS O • Four High-Precision Current Sinks – 250mA per String, 400mA Pulse Current U-QFN4040-16/SWP (Type UXB) – Typical ±0.5% Channel to Channel Current Matching – Supports Direct PWM Dimming
Applications
– Minimum PWM Dimming Duty Cycle Achieved 1/5000 at 100Hz Dimming Frequency • LED-backlight drivers for: • Extensive Fault Diagnostics – Automotive infotainment – Open-Drain Fault Report Pin – Automotive instrument clusters – LED Open/Short Protection – Smart mirrors – Schottky Diode/Inductor Short-Circuit Protection – Heads-up displays (HUD) – Built-In OCP, OVP, OTP, UVLO – VOUT Short/Schottky Diode Open Protection •
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
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Halogen and Antimony Free. “Green” Device (Note 3)
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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/
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ 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. AL3069Q 1 of 18 July 2025 Document number: DS46159 Rev. 2 - 2
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