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LX1995-2CSG Datasheet(PDF) 2 Page - Microsemi Corporation

Part # LX1995-2CSG
Description  Miniature LED Driver
Download  9 Pages
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Manufacturer  MICROSEMI [Microsemi Corporation]
Direct Link  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

LX1995-2CSG Datasheet(HTML) 2 Page - Microsemi Corporation

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LX1995
PRODUCTION DATA SHEET
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 2
Miniature LED Driver
Copyright
© 2000
Rev. 1.1, 2005-07-07
TM
®
ABSOLUTE MAXI MUM RATI NGS
Supply Input Voltage ........................................................................-0.3V to 7.0V
Feedback Peak Pulse Input Voltage (VFB) ..............................-0.3V to VIN + 0.3V
Shutdown Input Voltage (V
SHDN ) ........................................... -0.3V to VIN + 0.3V
Switch Voltage (VSW) ........................................................................-0.3V to 30V
Switch Current (ISW) ...................................................................................500mA
Operating Temperature Range .........................................................-40
°C to 85°C
Maximum Operating Junction Temperature ................................................ 125
°C
Storage Temperature Range...........................................................-65
°C to 150°C
Peak Package Solder Reflow Temp. (40 second max. exposure) ... 260°C (+0, -5)
Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to
Ground. Currents are positive into, negative out of specified terminal
.
TH ERM A L DATA
SG Plastic TSOT 5-Pin
THERMAL RESISTANCE
-JUNCTION TO AMBIENT,
θJA
207
°C/W
SE
Plastic SOT-23 5-Pin
THERMAL RESISTANCE
-JUNCTION TO AMBIENT,
θJA
191
°C/W
Junction Temperature Calculation: TJ = TA + (PD x
θJA).
The
θJA numbers are guidelines for the thermal performance of the device/pc-board system. All of the
above assume no ambient airflow.
PACKAGE PI N OUT
1
2
34
5
SW
GND
FB
IN
SHDN
SG PACKAGE
(Top View)
IN
SW
FB
GND
1
2
34
5
SHDN
SE PACKAGE
(Top View)
RoHS / Pb-free 100% Matte Tin Lead Finish
FUNCTIONAL PIN DESCRIPTION
Name
Description
SW
Inductor Switching Connection – Internally connected to the drain of a 28V N-channel MOSFET. SW is high
impedance in shutdown.
GND
Common terminal for ground reference.
FB
Feedback Input – Connect to a current sense resistor between the load and GND to set the maximum output
current. FB pin is regulated to 320mV.
SHDN
Active-Low Shutdown Input – A logic low shuts down the device and reduces the supply current to <1
µA.
Connect SHDN to VCC for normal operation.
IN
Unregulated IC Supply Voltage Input – Input range from +2.0V to +5.5V. Bypass with a 1
µF or greater capacitor
for low voltage operation.


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