Datasheet AL3069Q (Diodes) - 5
| Manufacturer | Diodes |
| Description | Automotive Display LED-Backlight Driver |
| Pages / Page | 18 / 5 — AL3069Q. Electrical Characteristics. Symbol. Parameter. Condition. Min. … |
| File Format / Size | PDF / 1.4 Mb |
| Document Language | English |
AL3069Q. Electrical Characteristics. Symbol. Parameter. Condition. Min. Typ. Max. Unit. Input Supply. VCC Regulator. Boost Gate Drive

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AL3069Q Electrical Characteristics
(@TA = -40°C to +125°C, VIN = 12V, VEN = 5V, unless otherwise specified.)
Symbol Parameter Condition Min Typ Max Unit Input Supply
IQ Quiescent Current No Switching — 3 — mA ISHDN Shutdown Supply Current VEN = 0 — 1 — µA VUVLO Undervoltage Lockout Voltage VIN Rising 3.7 4.0 4.3 V VHYS UVLO Hysteresis — — 200 — mV
VCC Regulator
VIN ≥ 5.5V — 5 — V VCC VCC Voltage VIN < 5.5V — VIN-0.5 — V — Load Regulation Load = 0 to 30mA — 5 — mV/mA — Line Regulation VIN = 12V to 33V — 0.3 — mV/V
Boost Gate Drive
tRISE OUT Pin Rise Time (Note 7) OUT Pin Load = 1nF — 30 — ns tFALL OUT Pin Fall Time (Note 7) OUT Pin Load = 1nF — 30 — ns
High-Frequency Oscillator
fOSC1 Switch Frequency RT = 100kΩ — 500 — kHz — Switch Frequency Range — 0.1 — 1 MHz DMAX Max Duty Cycle RT = 100kΩ 80 90 — % tON_TIME Minimum On-Time (Note 7) — — 100 — ns
Enable Logic and Dimming Logic
VEN_H EN High Voltage — 2.4 — — V VEN_L EN Low Voltage — — — 0.5 V VPWMD_H — 2.5 — — V PWM Logic for External Dimming VPWMD_L — — — 0.3 V
Power Switch Drive
VLIMIT Current-Limit Threshold Voltage — 480 540 600 mV VLIMIT2 D/L Short Threshold Voltage — 720 800 880 mV tLEB Current-Sense LEB Time (Note 7) — — 100 — ns
Compensation and Soft-Start (COMP Pin)
IO_H Sourcing Current VCOMP = 0.5V — 120 — µA IO_L Sinking Current VCOMP = 2V — 120 — µA Note: 7. Guaranteed by design. AL3069Q 5 of 18 July 2025 Document number: DS46159 Rev. 2 - 2
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