lx1996 Microsemi Corporation, lx1996 Datasheet - Page 7

• Manufacturer Part Number: lx1996
• Description: Multi-string Led Back-light Controller
• Manufacturer: Microsemi Corporation

Copyright © 2007
Rev. 1.0, 2007-12-14
Unless otherwise specified, the following specifications apply over the operating ambient temperature of -40
following test conditions: VIN=12V, V
Ultrasonic Pulse Skipping (USPS)
Maximum Switching Interval
Thermal Protection
Over Temperature Shutdown
(Note 2)
Thermal Shutdown Recovery
(Note 2)
Notes
1.
2.
3.
TM
With a 100K NTC thermistor, Bconstant = 4250, and Rbias = 22.1K, V
temperature points:
This parameter is bench characterized but not ATE tested.
Based on % variation from (I
a.
b.
c.
OT shut off temperature = 85°C
OT derating threshold = 60°C
OT recovery temperature = 75°C
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
OT
= 3V, EN = VIN , R
E L E C T R I C A L C H A R A C T E R I S T I C S
CS
Max+I
R
T
Analog Mixed Signal Group
CS
=100KΩ, Ultrasonic mode
Min)/2.
Microsemi
®
PRG
= 4.99 kΩ, L=6.8μH, R
Multi-string LED Back-light Controller
SRC
P
OT
RODUCTION
= 0.075Ω, C
threshold values equate to the following
OUTPUT
D
ATASHEET
23
= 4.7uF
0
C < Temp <85
140
100
40
LX1996
50
0
C, and the
Page 7
μs
°C
°C