LX1996ILQ MICROSEMI [Microsemi Corporation], LX1996ILQ Datasheet - Page 4

• Manufacturer Part Number: LX1996ILQ
• Description: Multi-string LED Back-light Controller
• Manufacturer: MICROSEMI [Microsemi Corporation]

Copyright © 2007
Rev. 1.0, 2007-12-14
VLDO
DSEL1
DSEL2
PWM
PRG
VIN
CLF
EN
OT
RT
CT
DI
TM
FB
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
LED CURRENT
LED CURRENT
TEMPRATURE
0.2V/2V LIMIT
GENERATOR
REGULATOR
REFERENCE
CONTROL
PROFILER
TRIANGLE
DIMMING
ANALOG
BOOST CONVERTER
MODE
WAVE
CONTROL LOGIC
PLL
5V
4-bit DAC
ANALOG TO
DIMMING
DIGITAL
F U N C T I O N A L B L O C K D I A G R A M
FBref Gen.
SRC
MU
X
COIL CURRENT
Analog Mixed Signal Group
LED CURRENT
+
SENSE
-
REFERENCE
DIMMING
DIGITAL
CLOCK
FBref
Microsemi
®
LED CURRENT OUTPUT,
LED OPEN/SHORT DETECTION,
BOOST CONVERTER REGULATION REFERENCE
FB
LED SHORT
DETECTION
DETECTION
LED OPEN
CONTROL
OUTPUT
LOGIC
Multi-string LED Back-light Controller
ULTRASONIC
OFF TIMER
Toff=f(VCC)
TIMER
CS OVER VOLTAGE LIMIT
CS OVER VOLTAGE
OUTPUT ENABLE
CS OPEN
BOOST FB
P
RODUCTION
+
+
+
+
-
-
-
-
+
-
FBref
25V
15V
0.2V
2V
D
CURRENT SOURCE
CURRENT SOURCE
CURRENT SOURCE
CURRENT SOURCE
CURRENT SOURCE
CURRENT SOURCE
ATASHEET
OUTPUT #6
OUTPUT #5
OUTPUT #4
OUTPUT #3
OUTPUT #2
OUTPUT #1
DRIVER
NGATE
LX1996
PGND
GND
CS6
CS5
CS4
CS3
CS2
CS1
DRV
OVP
Page 4