参数资料
| 型号： | ISL97522IRZ-TK |
| 厂商： | Intersil |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC SUPPLY CTRL 4CH TFT-LCD 38QFN |
| 标准包装： | 1,000 |
| 应用： | LCD 电视机/监控器 |
| 电流 - 电源： | 3mA |
| 电源电压： | 4.5 V ~ 13.2 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 38-VFQFN 裸露焊盘 |
| 供应商设备封装： | 38-QFN（5x7） |
| 包装： | 带卷 (TR) |
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ISL97522
Data Sheet
December 13, 2006
FN7445.0
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).
Ordering Information
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
PART NUMBER
PART
TAPE & PACKAGE
PKG.
ISL97522
(Note)
MARKING
REEL
(Pb-Free)
DWG. #
(38 LD QFN)
ISL97522IRZ-TK ISL 97522IRZ
13”
38 Ld QFN L38.5x7B
TOP VIEW
(1k pcs)
ISL97522IRZ-T
ISL 97522IRZ
13”
38 Ld QFN L38.5x7B
(4k pcs)
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.
DRVN 1
DELB 2
FBN 3
VCC1 4
FBB 5
31 FBP
30 VREF
29 ACGND
28 NC
27 DRVP
ISADJB 6
ILADJB 7
CINTB 8
DRVB 9
PGNDB 10
VHIB 11
NC 12
THERMAL
PAD
26 NC
25 VDCP
24 VDC
23 ISADJL
22 CINTL
21 ILADJL
20 PBL
1
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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