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參數資料
| 型號： | ISL97634IRT26Z-TK |
| 廠商： | INTERSIL CORP |
| 元件分類： | 顯示驅動器 |
| 英文描述： | White LED Driver with Wide PWM Dimming Range |
| 中文描述： | LED DISPLAY DRIVER, DSO8 |
| 封裝： | 2 X 3 MM, ROHS COMPLIANT, PLASTIC, TDFN-8 |
| 文件頁數： | 1/10頁 |
| 文件大小： | 470K |
| 代理商： | ISL97634IRT26Z-TK |
1
FN6264.2
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. 2006-2007. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
ISL97634
White LED Driver with Wide PWM
Dimming Range
The ISL97634 represents an efficient and highly integrated
PWM boost LED driver that is suitable for 1.8” to 3.5” LCDs
that employ 2 to 6 white LEDs for backlighting. With
integrated Schottky diode, OVP, and wide range of PWM
dimming capability, the ISL97634 provides a simple, reliable,
and flexible solution to the backlight designers.
The ISL97634 features a wide range of PWM dimming
control capability. It allows dimming frequency as low as DC
to 32kHz beyond audible spectrum. The ISL97634 also
features a feedback disconnect switch to prevent the output
from being modulated by the PWM dimming signal that
minimizes system disturbance.
The ISL97634 is available in the 8 Ld TDFN (2mmx3mm)
package. There are 14V, 18V, and 26V OVP options that are
suitable for 3 LEDS, 4 LEDs, and 6 LEDs backlight
applications respectively. The ISL97634 is specified for
operation over the -40°C to +85°C ambient temperature at
input voltage from 2.4V to 5.5V.
Pinout
ISL97634
(8 LD TDFN)
TOP VIEW
Typical Application Circuit
Features
Drives Up to 6 LEDs in Series
OVP (14V, 18V, and 26V for 3, 4 and 6 LEDs Applications)
PWM Dimming Control From DC to 32kHz
Output Disconnect Switch
Integrated Schottky Diode
2.4V to 5.5V Input
85% Efficiency
1.4MHz Switching Frequency Allows Small LC
1μA Shutdown Current
Internally Compensated
8 Ld TDFN (2mmx3mm)
Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
LED Backlighting for:
- Cell phones
- Smartphones
- MP3
- PMP
- Automotive Navigation Panel
- Portable GPS
2
3
4
1
7
6
5
8
GND
VIN
PWM/EN
NC
LX
VOUT
FBSW
FB
VIN
LX
FBSW
GND
VIN
PWM/EN
FB
VOUT
NC
10μH or 22μH
Ordering Information
PART
NUMBER
(Note)
PART
MARKING
TAPE &
REEL
(QTY)
PACKAGE
(Pb-free)
PKG.
DWG. #
ISL97634IRT14Z-T
ELE
13”
(6k pcs.)
8 Ld 2x3 TDFN L8.2x3A
ISL97634IRT14Z-TK ELE
13”
(1k pcs.)
8 Ld 2x3 TDFN L8.2x3A
ISL97634IRT18Z-T
ELF
13”
(6k pcs.)
8 Ld 2x3 TDFN L8.2x3A
ISL97634IRT18Z-TK ELF
13”
(1k pcs.)
8 Ld 2x3 TDFN L8.2x3A
ISL97634IRT26Z-T
ELG
13”
(6k pcs.)
8 Ld 2x3 TDFN L8.2x3A
ISL97634IRT26Z-TK ELG
13”
(1k pcs.)
8 Ld 2x3 TDFN L8.2x3A
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.
Data Sheet
April 10, 2007
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