参数资料
| 型号： | ISL6884IAZ |
| 厂商： | Intersil |
| 文件页数： | 1/13页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR CCFL BRIGHTNESS 20-SSOP |
| 标准包装： | 580 |
| 显示器类型： | CCFL - 冷色阴极荧光灯 |
| 接口： | I²C |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 20-SSOP |
| 包装： | 管件 |
?
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
Features
? Wide Supply Voltage Range of 3.0V to 5.5V
? 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
? User Programmable Fault Time Out
? I 2 C Status Output
? Pb-Free Plus Anneal Available (RoHS Compliant)
minimize interference with video.
ISL6884’s slave address is:
Pinout
ISL6884
? 1101_1111 for reading
? 1101_1110 for writing
LAMP_ON 1
TESTEN 2
(20 LD SSOP)
TOP VIEW
20 VDD
19 REGCAP
Ordering Information
GNDPLL 3
18 DPWM_8
PART
NUMBER
ISL6884IAZ
(See Note)
TEMP. RANGE
( o C)
-40 to 85
PACKAGE
20 Ld SSOP
(Pb-free)
PKG.
DWG. #
M20.15
PLL1 4
EN 5
DPWM_SYNC 6
OSCTEST 7
17 DPWM_7
16 DPWM_6
15 DPWM_5
14 DPWM_4
ISL6884IAZ-T
(See Note)
-40 to 85
20 Ld SSOP Tape M20.15
and Reel
(Pb-free)
SCL 8
SDA 9
GND 10
13 DPWM_3
12 DPWM_2
11 DPWM_1
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.
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