ISL97632
®
Data Sheet
April 10, 2007
FN9239.2
White LED Driver with Digital Dimming
Features
The ISL97632 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 dynamic digital
dimming capability, the ISL97632 provides a simple, reliable,
and flexible solution to the backlight designers.
• 5-Bit Digital Dimming Control
• Drives up to 6 LEDs in Series
• OVP (14V, 18V and 26V for 3, 4, and 6 LEDs applications)
• Integrated Schottky Diode
• 2.4V to 5.5V input
The ISL97632 features a simple single-wire digital interface
that provides a 5-bit dimming control. The dimming signal
adjusts the FB voltage and therefore the LED brightness in a
DC manner in 32 linear steps. An EN pin can be used to
provide a zero brightness setting or shutdown power saving
function.
• 86% Efficiency
• 1.4MHz Switching Frequency Allows Small LC
• Enable for Shutdown Function or Zero Brightness Setting
• 1µA Shutdown Current
• Internally Compensated
The ISL97632 is available in the 8 Ld DFN (2mmx3mm)
package. There are 14V, 18V, and 26V OVP options that are
suitable for 3, 4, and 6 LEDs backlight applications
respectively. The ISL97632 is specified for operation over
the -40°C to +85°C ambient temperature at input voltage
from 2.4V to 5.5V.
• 8 Ld DFN (2mmx3mm)
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• LED backlighting for
- Cell phones
Pinout
ISL97632
(8 LD 2x3 TDFN)
TOP VIEW
- Smartphones
- MP3
- PMP
- Automotive Navigation Panel
- Portable GPS
GND
LX
1
2
3
4
8
7
6
5
VIN
EN
VOUT
FBSW
FB
Ordering Information
TAPE &
SDIN
PART NUMBER
(Note)
PART
MARKING (QTY)
REEL
PACKAGE
(Pb-Free)
PKG.
DWG.#
Typical Application Circuit
ISL97632IRT14Z-T ELB
ISL97632IRT14Z-TK ELB
ISL97632IRT18Z-T ELC
ISL97632IRT18Z-TK ELC
ISL97632IRT26Z-T ELD
ISL97632IRT26Z-TK ELD
13”
(6k pcs.)
8 Ld 2x3 TDFN L8.2x3A
8 Ld 2x3 TDFN L8.2x3A
8 Ld 2x3 TDFN L8.2x3A
8 Ld 2x3 TDFN L8.2x3A
8 Ld 2x3 TDFN L8.2x3A
8 Ld 2x3 TDFN L8.2x3A
10µH or 22µH
VIN
13”
(1k pcs.)
LX
VIN
13”
(6k pcs.)
EN
VOUT
13”
(1k pcs.)
SDIN
13”
(6k pcs.)
FBSW
FB
13”
(1k pcs.)
GND
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.
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
1
All other trademarks mentioned are the property of their respective owners.
5秒后页面跳转
NTC热敏电阻与PTC热敏电阻的应用原理及应用范围
GTO与普通晶闸管相比为什么可以自关断？为什么普通晶闸管不能呢？从GTO原理、应用范围带你了解原因及推荐型号
LF353数据手册解读：特性、应用、封装、引脚说明、电气参数及替换型号推荐
A4950资料手册解读：特性、应用、封装、引脚功能、电气参数及代换型号
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
