Texas Instruments LM3492HCEVM High Contrast Evaluation Module LM3492HCEVM LM3492HCEVM 데이터 시트
제품 코드
LM3492HCEVM
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
Δ
I
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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