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ISL6884IAZ-T Datasheet

  • ISL6884IAZ-T

  • CCFL Brightness Controller

  • 13頁(yè)

  • INTERSIL   INTERSIL

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ISL6884
Data Sheet
March 9, 2006
FN9265.0
CCFL Brightness Controller
ISL6884 controls Pulse Width Modulated Dimming for up to
8 inverters to supply power to up to 40 Cold Cathode
Fluorescent Lamps (CCFL) for back lighting in large LCD
displays.
The ISL6884 brightness controller provides an I
2
C interface
for dimming control, enable, status, and brightness balance.
The duty cycle of all 8 DPWM outputs is adjusted with a
Master Brightness Control register. The duty cycle of each of
the 8 DPWM outputs can be offset from the master
brightness to adjust for uniform brightness.
The PWM dimming frequency can be set by an internal,
adjustable oscillator or synchronized to an external source to
minimize interference with video.
ISL6884鈥檚 slave address is:
鈥?1101_1111 for reading
鈥?1101_1110 for writing
Features
鈥?Wide Supply Voltage Range of 3.0V to 5.5V
鈥?Dimming
- I
2
C dimming control input
- PWM dimming can be synchronized to an external
source or set by an internal, adjustable oscillator.
- 8 channel dimming allows the user to balance the
brightness of the CCFL lamps via I
2
C control
- User programmable fault time out
鈥?User Programmable Fault Time Out
鈥?I
2
C Status Output
鈥?Pb-Free Plus Anneal Available (RoHS Compliant)
Pinout
ISL6884
(20 LD SSOP)
TOP VIEW
LAMP_ON
1
TESTEN
2
20
VDD
19
REGCAP
18
DPWM_8
17
DPWM_7
16
DPWM_6
15
DPWM_5
14
DPWM_4
13
DPWM_3
12
DPWM_2
11
DPWM_1
Ordering Information
PART
NUMBER
ISL6884IAZ
(See Note)
ISL6884IAZ-T
(See Note)
TEMP. RANGE
(
o
C)
-40 to 85
-40 to 85
PACKAGE
20 Ld SSOP
(Pb-free)
PKG.
DWG. #
M20.15
GNDPLL
3
PLL1
4
EN
5
DPWM_SYNC
6
OSCTEST
7
SCL
8
SDA
9
GND
10
20 Ld SSOP Tape M20.15
and Reel
(Pb-free)
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.
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.

ISL6884IAZ-T 產(chǎn)品屬性

  • 2,500

  • 集成電路 (IC)

  • PMIC - 顯示器驅(qū)動(dòng)器

  • -

  • CCFL - 冷色陰極熒光燈

  • -

  • I²C

  • -

  • -

  • 4.5 V ~ 5.5 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 20-SSOP（0.209"，5.30mm 寬）

  • 20-SSOP

  • 帶卷 (TR)

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