Datasheet

www.ti.com Evaluation Board Schematic and PCB Layout
Figure 3. LM3492HC Evaluation Board Top View Figure 4. LM3492HC Evaluation Board Bottom View
Table 1. Evaluation Board Quick Setup Procedures
Step Description Notes
1 Connect a power supply to VIN and PGND terminals V
IN
range: 9V to 16V
Connect 2 LED strings: from VLED1 to IOUT1 terminals, Each LED string consists of 10 LEDs with a
2
and VLED2 to IOUT2 terminals forward voltage of 3.8V per LED at 150 mA
The EN terminal should be left open for normal operation.
3
Ground this terminal to shutdown
Connect DIM1 and DIM2 terminals to a voltage > 2V, apply V
IN
=
4 Nominal LED current is 150 mA per channel
12V
5 Ground the EN terminal to check the shutdown function
Table 2. Evaluation Board Performance Characteristic
Description Symbol Condition Min Typ Max Unit
Input Voltage V
IN
9 12 16 V
Rail Voltage V
OUT
39 V
LED Current I
LED
150 mA
LED Current ALL V
IN
ΔI
LED
-3 +3 %
Regulationt conditions
V
IN
= 9V 86.3 %
Efficiency V
IN
= 12V 88.9 %
V
IN
= 16V 89.8 %
3
SNVA639A–May 2012–Revised April 2013 AN-2231 LM3492HC Evaluation Board Reference Design
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