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| 型号： | ISL97682IRTZ |
| 厂商： | Intersil |
| 文件页数： | 1/17页 |
| 文件大小： | 0K |
| 描述： | IC LED DVR PWM CTRL 2CH 16TQFN |
| 标准包装： | 100 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 2 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 频率： | 500kHz ~ 650kHz，900kHz ~ 1.1MHz |
| 电源电压： | 4 V ~ 26.5 V |
| 输出电压： | 45V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFQFN 裸露焊盘 |
| 供应商设备封装： | 16-TQFN（3x3） |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 85°C |
Compact 2-3-4-Ch LED Drivers with Phase Shift Control
ISL97682, ISL97683, ISL97684
The ISL97682, ISL97683, ISL97684 are Intersil’s highly
integrated 2-3-4-channels LED drivers that are suitable for
medium size TFT-LCD backlights. These parts can drive multiple
channels of LEDs from inputs as low as 4V to outputs of up to
45V. They can also operate from inputs as low as 3V to outputs of
up to 26.5V in bootstrap configuration (see Figure 26 for 3V
operation).
The ISL97682, ISL97683, ISL97684 feature optional channels
phase shift control. This feature is used to minimize the input,
output ripple characteristics and load transient, which help
eliminate or reduce the video and audio noise interference from
the backlight driver operation.
The ISL97682, ISL97683, ISL97684 offer 8-bit PWM dimming for
systems that need frequency tuning flexibility. With the unique
adaptive boost switching architecture, the ISL97682, ISL97683,
ISL97684 also offer Direct PWM dimming with output, which
follows input and achieves linearity as low as 0.009% at 200Hz
or 1.35% at 30kHz.
The drivers incorporate dynamic headroom control that monitors
the highest LED forward voltage string and uses its feedback signal
for the minimum output regulation. The ISL97682, ISL97683,
ISL97684 incorporates extensive fault protection functions including
string open and short circuit detections, OVP, and OTP. The switching
frequency can be selected at either 600kHz or 1.0MHz in PFM or
PWM mode. These parts are available in the thin and compact
16 Ld 3mmx3mm TQFN package and operate in ambient
temperature from -40°C to +85°C.
Features
? ISL97682 - 2 x 100mA Channels
? ISL97683 - 3 x 50mA Channels
? ISL97684 - 4 x 50mA Channels
? Input Voltage 4.0V~26.5V with Max V OUT of 45V
? Input Voltage 3.0V (see Figure 26)~24V with Max V OUT of 26.5V
? PWM Dimming Linearity
- PWM Dimming with Adjustable Dimming Frequency with
Duty Cycle Linear from 0.4% to 100% <30kHz
- Direct PWM Dimming with Duty Cycle Linear from 0.009%
to 100% at 200Hz
? Current Matching of 0.7% typical from 1%~100% Dimming
? Selectable 600kHz or 1MHz Switching Frequency in PWM/PFM
Mode
? Dynamic Headroom Control
? Fault Protection
- String Open/Short Circuit Protections, OVP, OTP
? Thin and Compact TQFN-16 3mmx3mm Package
Applications
? Tablet to Notebook PC Displays LED Backlighting
? PMP LED Backlighting
V IN = 4~26.5V
Ci
L1
10μH
D1
45V, 4 x 50mA*
Co
Ci
V IN = 4~26.5V
L1
10μH
D1
45V, 4 x 50mA*
Co
10μF
7 VIN
LX 9
4.7μF
10μF
7 VIN
LX 9
4.7μF
0.1μF
1μF
11 VDC
6 EN
ISL97684
OVP 12
0.1μF
1μF
11 VDC
6 EN
ISL97684
OVP 12
5 PWMI
5 PWMI
3 RSET
8 FPWM/DIRECTPWM
4 FSW
2 COMP
PGND 10
CH1 13
CH2 14
CH3 15
3 RSET
8 FPWM/DIRECTPWM
4 FSW
2 COMP
PGND 10
CH1 13
CH2 14
CH3 15
33pF
10k ?
8.2nF
1 AGND
CH4 16
*V IN > = 9V AND WITH
GOOD LEDS MATCHING
33pF
10k ?
8.2nF
1 AGND
CH4 16
*V IN >=9V AND WITH
GOOD LEDS MATCHING
FIGURE 1A. DIRECT PWM DIMMING FIGURE 1B. PWM DIMMING WITH DIMMING FREQUENCY
ADJUSTMENT USING R FPWM
FIGURE 1. ISL97684 TYPICAL APPLICATION DIAGRAMS
May 16, 2012
FN7689.1
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 Inc. 2011, 2012. 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 |
|---|---|
| ISL97682IRTZ-T | IC LED DVR PWM CTRL 2CH 16TQFN |
| EEC18DRYH | CONN EDGECARD 36POS DIP .100 SLD |
| EBC10DRTI | CONN EDGECARD 20POS DIP .100 SLD |
| EBC13DREN | CONN EDGECARD 26POS .100 EYELET |
| EBC13DREH | CONN EDGECARD 26POS .100 EYELET |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL97682IRTZEVALZ | 功能描述:EVAL BOARD FOR ISL97682 RoHS:是 类别:编程器，开发系统 >> 评估板 - LED 驱动器 系列:- 标准包装:1 系列:PowerWise® 电流 - 输出 / 通道:20mA 输出及类型:1，非隔离 输出电压:17V 特点:可调光 输入电压:2.7 ~ 5.5 V 已供物品:板 已用 IC / 零件:LM3508 相关产品:LM3508TLX-ND - IC LED DRVR WHT BCKLGT 9USMDLM3508TLDKR-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLCT-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLTR-ND - IC LED DRVR WHT BCKLGT 9MICROSMD |
| ISL97682IRTZR5509 | 功能描述:LED照明驱动器 1 Channel LED Drivers, 16LD TQFN 3X3 RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| ISL97682IRTZ-T | 功能描述:IC LED DVR PWM CTRL 2CH 16TQFN 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 |
| ISL97682IRTZ-TK | 功能描述:IC LED DVR PWM CTRL 2CH 16TQFN RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:60 系列:- 恒定电流:- 恒定电压:- 拓扑:线性（LDO），PWM，升压（升压） 输出数:8 内部驱动器:是 类型 - 主要:背光 类型 - 次要:RGB，白色 LED 频率:500kHz ~ 1.5MHz 电源电压:4.75 V ~ 26 V 输出电压:45V 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* 工作温度:-40°C ~ 85°C |
| ISL97682IRTZ-TR5509 | 功能描述:LED照明驱动器 1 Channel LED Driver, 16LD TQFN 3X3, T&R RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
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