- 您现在的位置：买卖IC网 > Datasheet目录335 > ISL97672BIRZ (Intersil)IC LED DRVR BACKLIGHT 20QFN Datasheet资料下载
参数资料
| 型号： | ISL97672BIRZ |
| 厂商： | Intersil |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR BACKLIGHT 20QFN |
| 标准包装： | 75 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 6 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 频率： | 200kHz ~ 1.5MHz |
| 电源电压： | 4.5 V ~ 26.5 V |
| 输出电压： | 45V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-VFQFN 裸露焊盘 |
| 供应商设备封装： | 20-QFN（3x4） |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 85°C |
6-Channel LED Driver with Ultra Low Dimming
Capability
ISL97672B
The ISL97672B is an integrated 6-channel power LED driver for
LCD backlight applications. ISL97672B is capable of driving
LEDs with input from 4.5V to 26.5V and maximum output up to
45V.
The ISL97672B employs an adaptive boost switching
architecture that allows Direct PWM dimming with dimming
duty cycle as low as 0.007% at 200Hz or 0.8% at 20kHz. PWM
Dimming frequency can be as high as 30kHz.
The ISL97672B employs the dynamic headroom control that
monitors the highest LED forward voltage string for output
regulation to minimize headroom voltage and power loss in a
typical multi-string operation. Typical current matching between
channels is ±0.7%.
The ISL97672B incorporates extensive protection functions
that flag whenever a fault occurs. The protections include
string-open and short-circuit detections, OVP, OTP, and an
optional output short-circuit protection with external fault
disconnect switch
The ISL97672B is offered in a compact 20 Ld QFN 3x4
package and can operate in ambient temperatures of -40°C to
+85°C.
Features
? 6 x 50mA channels
? 4.5V to 26.5V input
? 45V output max
? Adaptive boost switching architecture
? Direct PWM dimming with dimming linearity of
0.007%~100% at 200Hz or 0.8%~100% <20kHz
? Adjustable 200kHz to 1.4MHz switching frequency
? Dynamic headroom control
? Fault protections with latched flag indication
- String open/short circuit
- OVP
- OTP
- Optional output short-circuit fault protection switch
? Current matching ±0.7%
? 20 Ld 3x4 QFN package
Applications
? Notebook displays LED backlighting
? LCD monitor LED backlighting
? Multi-function printer scanning light source
V IN = 4.5V~26.5V
Q1 OPTIONAL
ISL97672B
1 FAULT
V OUT = 45V*, 6 x 50mA
2 VIN
LX 20
4 VDC
6 /FLAG
18 COMP
3 EN
5 PWM
OVP 16
PGND 19
CH0 10
CH1 11
CH2 12
CH3 13
1.2
1.0
0.8
0.6
0.4
17 RSET
8 FSW
9 AGND
CH4 14
CH5 15
* V IN > 12V
0.2
0.0
I LED = 20mA
F PWM = 20kHz
0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0 4.4 4.8 5.2
PWM DIMMING DUTY CYCLE (%)
FIGURE 1. TYPICAL APPLICATION DIAGRAM
FIGURE 2. DIMMING LINEARITY AT 20kHz
November 22, 2013
FN7995.1
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2012, 2013. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
相关PDF资料 |
PDF描述 |
|---|---|
| ISL97675IRZ-TK | IC LED DVR PWM CTRL 4CH 20QFN |
| ISL97677IRZ | IC LED DVR PWM CTRL 8CH 32QFN |
| ISL97678IRZ | IC LED DVR PWM DIMMING 8CH 32QFN |
| ISL97686IRTZ | IC LED DRVR BACKLIGHT 28TQFN |
| ISL97691IRTZ-TK | IC LED DRVR BACKLIGHT 3D 16TQFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL97672BIRZ-T | 功能描述:IC LED DRVR BACKLIGHT 20QFN RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 恒定电流:- 恒定电压:- 拓扑:升压（升压），切换式电容器（充电泵） 输出数:1 内部驱动器:是 类型 - 主要:背光 类型 - 次要:白色 LED 频率:625kHz ~ 875kHz 电源电压:2.7 V ~ 5.3 V 输出电压:5V 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-µMAX 包装:带卷 (TR) 工作温度:-40°C ~ 85°C |
| ISL97672IRZ | 制造商:Intersil Corporation 功能描述:6-CH LED DRIVER WITH PWM DIMMING - Rail/Tube 制造商:Intersil 功能描述:6-CH LED DRVR W/PWM DIM |
| ISL97672IRZ-T | 制造商:Intersil Corporation 功能描述:6-CH LED DRIVER WITH PWM DIMMING, T&R - Tape and Reel 制造商:Intersil 功能描述:6-CH LED DRVR W/PWM DIM |
| ISL97672IRZ-TK | 制造商:Intersil Corporation 功能描述:6-CH LED DRIVER WITH PWM DIMMING, 1K T&R - Tape and Reel 制造商:Intersil 功能描述:6-CH LED DRVR W/PWM DIM 1K |
| ISL97673IRZ | 制造商:Intersil Corporation 功能描述:6-CH LED DRIVER WITH SMBUS OR PWM DIMMING AND PHASE SHIFT CO - Rail/Tube 制造商:Intersil 功能描述:6-CH LED DRVR W/SMBU OR PWM DIM & PHS |
发布紧急采购，3分钟左右您将得到回复。