LM3492HC Datasheet, PDF (7/17 Pages) Texas Instruments – Two-Channel Individual Dimmable LED Driver with Boost Converter and Fast Current Regulator

Efficiency vs V_IN (I_LED = 0.25A)
100
95 _-40°C
90
85
25°C
80
75 _125°C
70
10
15
20
INPUT VOLTAGE (V)
Power Up (I_LED = 0.25A)
25
30170532
I_LED Regulation vs V_IN (I_LED = 0.25A)
1.00
0.75
0.50
25°C
0.25
0.00
-0.25
-40°C
-0.50
-0.75
125°C
-1.00
10
15
20
25
INPUT VOLTAGE (V)
30170533
Enable Transient (I_LED = 0.25A)
30170534
Steady State Operation (I_LED = 0.25A)
30170535
LED 50% Dimming
(I_LED = 0.25A, Dimming frequency = 200Hz)
30170536
7
30170537
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