Datasheet AL5873Q (Diodes) - 4

AL5873Q Electrical Characteristics
(@TA = -40°C to +125°C, VIN = +12V, unless otherwise specified.)
Symbol Parameter Test Conditions Min Typ Max Unit
VVIN_UVLO VIN UVLO Voltage VVIN Rising 4.75 5.0 5.25 V VVIN_UVLO_HYS VIN UVLO Hysteresis VVIN Falling — 300 — mV

IVIN_Standby Input Current in Standby Mode Standby Mode, PWM is “Low” for 7ms — 186 — µA
N
IDVCC_Q Input Current in Normal Mode Enabled, LEDX Floating, PWM is “H”, RSET is 48kΩ — 0.7 — mA VIL_PWM
IO
PWM Low Voltage — — — 0.4 V
T
VIH_PWM PWM High Voltage — 1.4 — — V
A
IPWM_PD

PWM Internal Pulldown VPWM = 5V 0.35 — 3.5 μA
M
Entrance Time for Standby Mode — — 15 25 ms
R
TPWM_SHDN When the PWM is ”L”
O
Typical Voltage Range for Analog For Analog Dimming 0% — 0.3 —
F
VADIM V Dimming For Analog Dimming 100% — 1.5 — Apply DC Voltage on ADIM Pin for
IN
VADIM_ON VADIM Rising — — 0.35 V Analog Dimming on
D
Apply DC Voltage on ADIM Pin for
E
VADIM_OFF VADIM Falling 0.15 — — V Analog Dimming off
C N
IADIM ADIM sourcing Current — 19 20 22 µA
A
VREF1 Reference Voltage 1 (Note 6 & 7) 1.47 1.5 1.53 V
V
VREF2 Reference Voltage 2 (Note 6 & 7) 1.47 1.5 1.53 V
D
I
A
LED_NOM Regulation Current for Channel 1 RSET = 48kΩ (Note 6 & 7) — 125 — mA VLEDX_REG Minimum LED Regulation Voltage ILEDX = 125mA — 0.5 — V ILEDX_LEAK LEDX Leakage Current VPWM = 0V, VLEDX = 12V — 0.1 5 μA ILEDX_ACCURACY LED Current Accuracy RSET = 48kΩ -4 — 4 % ILEDX_MATCH LED Channel Current Matching RSET = 48kΩ -3 — 3 % TLEDXSHDG 100% Duty-Cycle — 5 — ms Short-Detection Deglitch PWM Dimming (count the number of continuous NLEDXSHDG

— 7 — Cycles cycles when LED short is detected) TLEDXSH_HICCUP LED Short Protection Hiccup Time — — 128 — ms TLEDXOPDG 100% Duty-Cycle — 5 — ms Open-Detection Deglitch PWM Dimming (count the number of continuous NLEDXOPDG — 7 — Cycles cycles when LED open is detected) Open-Detection Deglitch Time per TLEDXOPDG_CYCLE — — 20 — us Cycle TLEDXOP_HICCUP LED Open Protection Hiccup Time — — 128 — ms VIL_FULL FULL Low Voltage — — — 0.4 V VIH_FULL FULL High Voltage — 1.4 — — V IPD_FULL FULL Pull Down Current — — 2 — μA IF_PULLUP FAULTB Pull-Up Current VFAULTB = 1.6V — 500 — μA VF_PULLUP FAULTB Pull-Up Voltage Fault Pin Floating — 3 — V VFOL FAULTB Output Low Voltage IFAULTB = 1mA — — 600 mV FAULTB Input Detect Threshold VFIN_TH — — 1.33 — V Voltage IF_LKG FAULTB Leakage Current VFAULTB = 5V — — 5 μA TSHDN Thermal Shutdown Threshold — — 160 — ℃ TREC Thermal Recovery Threshold — — 130 — ℃ Notes: 6. Subject to maximum junction temperature of +150°C not being exceeded. The Maximum ambient temperature range is limited by device power dissipation; such that its junction temperature should be kept less than or equal to +150°C. See Page 11 for more information on power dissipation. 7. Subject to thermal fold back function, the current of each channel is become smaller than specs when the junction temperature is higher than thermal fold back trigger point. See Page xx for more information on thermal fold back function. AL5873Q 4 of 16 February 2021 Document number: DS42780 Rev. 2 - 2
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