參數(shù)資料
型號： ISL97522IRZ-TK
廠商： INTERSIL CORP
元件分類： 顯示驅動器
英文描述： 4-Channel TFT-LCD Supply
中文描述： LIQUID CRYSTAL DISPLAY DRIVER, QCC38
封裝： ROHS COMPLIANT, PLASTIC, MO-220, QFN-38
文件頁數(shù)： 1/20頁
文件大?。?/td> 418K
代理商： ISL97522IRZ-TK
1
FN7445.0
ISL97522
4-Channel TFT-LCD Supply
The ISL97522 represents a 4-channel supply control IC for
use in large panel TFT-LCD displays. Supporting inputs from
4.5V to 13V, the ISL97522 includes a boost controller to
achieve the required A
VDD
output voltage. Both V
ON
and
V
OFF
are generated using off-chip charge-pumps which are
then post regulated using on-board LDO controllers.
The logic supply is generated using an internal non-
synchronous buck controller. This controller runs at 180° out
of phase with the A
VDD
supply to minimize input noise.
The A
VDD
, V
OFF
, and V
ON
outputs are automatically
sequenced as A
VDD
, V
OFF
, and V
ON
. By using an optional
external series transistor with A
VDD
(Q1), the start-up
sequence can be adjusted to VOFF, A
VDD
and then V
ON
. A
V
ON
slicing circuit is also included to reduce LCD flicker.
The ISL97522 also incorporates a fault protection circuit that
can disable the IC and turn off all outputs when an output
short is detected. (Note that to protect A
VDD
a single
external transistor is required).
Features
4.5V to 13V input
Boost controller for A
VDD
Regulated LDOs for V
OFF
and V
ON
Buck controller for logic output
V
ON
slicing circuit
Fully fault-protected
Programmable sequence
1MHz switching frequency
38 Ld QFN package
Pb-free plus anneal available (RoHS compliant)
Applications
LCD-TVs (up to 50”+)
LCD monitors (15”+)
Industrial/medical LCD displays
Pinout
ISL97522
(38 LD QFN)
TOP VIEW
Ordering Information
PART NUMBER
(Note)
PART
MARKING
TAPE &
REEL
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL97522IRZ-TK ISL 97522IRZ
13”
(1k pcs)
38 Ld QFN L38.5x7B
ISL97522IRZ-T
ISL 97522IRZ
13”
(4k pcs)
38 Ld QFN L38.5x7B
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are RoHS compliant and
compatible with both SnPb and Pb-free soldering operations. Intersil
Pb-free products are MSL classified at Pb-free peak reflow
temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020.
THERMAL
PAD
31
30
29
28
27
26
25
3
3
3
3
3
1
I
1
V
1
E
1
V
1
L
1
2
3
4
5
6
7
DRVN
DELB
FBN
VCC1
FBB
ISADJB
ILADJB
FBP
VREF
ACGND
NC
DRVP
NC
VDCP
S
C
D
E
C
8
9
24
23
1
D
3
1
P
3
VDC
ISADJL
CINTB
DRVB
C
V
10
PGNDB
11
VHIB
12
NC
22 CINTL
21 ILADJL
20 PBL
Data Sheet
December 13, 2006
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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