LX1992-02W EVAL KIT MICROSEMI, LX1992-02W EVAL KIT Datasheet - Page 2

• Manufacturer Part Number: LX1992-02W EVAL KIT
• Manufacturer: MICROSEMI

Specifications of LX1992-02W EVAL KIT

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Copyright © 2000
Rev. 1.1b, 2005-03-03
Note: ADJ pin should not be left floating.
Supply Voltage (V
Feedback Input Voltage (V
Shutdown Input Voltage (V
Analog Adjust Input Voltage (V
Source Input Current (I
Operating Junction Temperature.................................................................. 150°C
Storage Temperature Range...........................................................-65°C to 150°C
Lead Temperature (Soldering 180 seconds) ................................................ 235°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
Junction Temperature Calculation: T
The θ
system. All of the above assume no ambient airflow.
SHDN
N
LM
DRV
GND
SRC
DU
ADJ
CS
FB
THERMAL RESISTANCE
THERMAL RESISTANCE
THERMAL RESISTANCE
THERMAL RESISTANCE
AME
IN
JA
TM
Ground. Currents are positive into, negative out of specified terminal
numbers are guidelines for the thermal performance of the device/pc-board
Plastic MSOP 8-Pin
Plastic MLP 8-Pin
Unregulated IC Supply Voltage Input – Input range from +1.6V to 6.0V. Bypass with a 1µF or greater capacitor
for operation below 2.0V.
Feedback Input – Connects to a current sense resistor between the output load and GND to set the output
current.
Active-Low Shutdown Input – A logic low shuts down the device and reduces the supply current to 0.2µA (Typ).
Connect SHDN to V
MOSFET Gate Driver – Connects to an external N-Channel MOSFET.
Current-Sense Amplifier Input – Connecting a resistor between CS and GND sets the peak inductor current limit.
Common terminal for ground reference.
Adjustment Signal Input – Provides the internal reference, via an internal filter and gain resistor, allowing a
dynamic output current adjustment corresponding to a varying duty cycle. The actual ADJ pin voltage range is
from V
0.0V to 0.5V should be used.
MOSFET Current Sense Input - Connects to the External N-Channel MOSFET Source.
A B S O L U T E M A X I M U M R A T I N G S
IN
IN
) ........................................................................-0.3V to 7.0V
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
to GND. In order to minimize the current sense resistor power dissipation a practical range of V
SRC
-
-
-
-
).................................................................... 0.80 A
JUNCTION TO
JUNCTION TO
JUNCTION TO
JUNCTION TO
FB
T H E R M A L D A T A
SHDN
) ................................................-0.3V to V
ADJ
) ...........................................-0.3V to V
J
CC
= T
).......................................-0.3V to V
for normal operation.
F U N C T I O N A L P I N D E S C R I P T I O N
A
+ (P
A
C
A
C
MBIENT
ASE
MBIENT
ASE
D
Linfinity Microelectronics Division
x θ
, θ
, θ
JC
JC
JC
).
, θ
, θ
®
Microsemi
JA
JA
D
.
ESCRIPTION
206°C/W
5.2°C/W
39°C/W
41°C/W
IN
IN
IN
High Efficiency LED Driver
+ 0.3V
+ 0.3V
+ 0.3V
P
RODUCTION
RMS
RoHS / Pb-free 100% Matte Tin Lead Finish
GND
SRC
ADJ
D
CS
ATA
P A C K A G E P I N O U T
GND
SRC
ADJ
CS
S
HEET
1
2
3
4
1
2
3
4
DU P
LM P
(Top View)
(Top View)
ACK AGE
ACK AGE
8
7
6
5
8
7
6
5
LX1992
DRV
IN
FB
SHDN
ADJ
DRV
IN
FB
SHDN
=
Page 2