LX1995-1CSG MICROSEMI [Microsemi Corporation], LX1995-1CSG Datasheet - Page 5

• Manufacturer Part Number: LX1995-1CSG
• Description: MINIATURE LED DRIVER LX1995 EVUALATION KIT
• Manufacturer: MICROSEMI [Microsemi Corporation]

LX1995
LX1995 E
Copyright © 2004
Rev. 1.0, 2004-08-13
The following is a demonstration scenario that
can be used to evaluate the LX1995:
Directions for hook up (DC dimming mode):
1. Install jumper JU1.
( DIMMING OPTION 3)
<1KHz
PWM
( DIMMING OPTION 1)
VALUATION
3.3V
DC DIMMER
0V
0V to 3V
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
POWER
H
3.6V
+
-
OOK
Figure 2 – Typical Hook Up for the LX1995 Eval Board
+
-
U
P
Integrated Products
/SHDN
Microsemi
GND
VIN
LX1995 MINIATURE LED DRIVER
LED4
LED2
EVALUATION BOARD
U1
[phone]
L1
D1
LED3
LED1
2. Connect a 3.6V typical 1A power source
between VIN and GND terminals.
3. Apply a 1.5V DC signal to the DC_ADJ
terminal. Signal GND can be referenced to GND2
for convenience.
4. Vary the DC signal from 0V to 3V and observe
the LEDs dimming. (Measure LED current from
LED4 cathode to GND2 if desired. I = V / 15.
E
VALUATION
3.3V
( DIMMING OPTION 2)
0V
>5KHz
PWM
G
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