Datasheet AL8861Q (Diodes) - 5

AL8861Q Typical Performance Characteristics
(TA = +25°C, VIN = 16V, unless otherwise specified.)
Quiescent Current vs. Input Voltage Quiescent Current vs. Temperature
560

600 540 580 V =16V IN 520 560 A) A) ( 500 ( 540 t t n n 480 520 rre rre

u u C C
T
460 500 t t n n
C
440 480 sce sce
U
e e i i u u 420 460
D
Q Q
O
400 440
R
380 420
P
360 400 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40
W
-50 -25 0 25 50 75 100 125 Input Voltage (V)
E
Temperature (oC)
N Shutdown Current vs. Input Voltage Shutdown Current vs. Temperature
60

100

58 90 V =16V IN 56 80 A) A) 70 54 ( ( t t n n 52 rre 60 rre u u C 50 C 50 n n w w o o 40 48 d d t t u u 30 46 Sh Sh 20 44 42 10 40 0 -50 -25 0 25 50 75 100 125 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 Input Voltage (V) Temperature (oC)
ISENSE Threshold Voltage vs. Input Voltage PWM Dimming (VIN=16V, 3 LEDs, L=47μH, RS=0.3Ω) LED Current vs . Duty Cycle
120 340

320 115 L=47H,f =680kHz 300 LX 110 f =100Hz 280 PWM 105 260 f =200Hz PWM (mV) e 240 f =500Hz PWM 100 g at (mA) 220 l t f =1kHz PWM 95 Vo n 200 dl 90 rre 180 o u 160 C sh 85 t re u 140 p h t 80 120 T u E O 100 75 NS E I 80 I S SENSE_H 70 60 ISENSE_MEAN 40 65 ISENSE_L 20 60 0 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 0 10 20 30 40 50 60 70 80 90 100 Input Voltage (V) Duty Cycle (%) AL8861Q 5 of 15 May 2019 Document number: DS41798 Rev. 2 - 2
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