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LM3492HCMH/NOPB PDF预览

LM3492HCMH/NOPB

更新时间： 2024-09-19 11:08:07
品牌 Logo 应用领域
德州仪器 - TI 升压转换器驱动光电二极管接口集成电路显示驱动器调节器驱动程序和接口
页数 文件大小 规格书
17页 317K
描述
具有升压转换器和电流调节器的高对比度 2 通道独立可调光 LED 驱动器 | PWP | 20 | -40 to 125

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中文翻译

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LM3492HCMH/NOPB 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active包装说明：HTSSOP, TSSOP20,.25
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：1.67输入特性：STANDARD
接口集成电路类型：LED DISPLAY DRIVERJESD-30 代码：R-PDSO-G20
JESD-609代码：e3长度：6.5 mm
湿度敏感等级：1复用显示功能：NO
功能数量：1区段数：6
端子数量：20最高工作温度：125 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：HTSSOP封装等效代码：TSSOP20,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260电源：12 V
认证状态：Not Qualified座面最大高度：1.1 mm
子类别：Display Drivers最大压摆率：5.2 mA
最大供电电压：65 V最小供电电压：4.5 V
标称供电电压：12 V表面贴装：YES
温度等级：AUTOMOTIVE端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：4.4 mmBase Number Matches：1

LM3492HCMH/NOPB 数据手册

 浏览型号LM3492HCMH/NOPB的Datasheet PDF文件第2页浏览型号LM3492HCMH/NOPB的Datasheet PDF文件第3页浏览型号LM3492HCMH/NOPB的Datasheet PDF文件第4页浏览型号LM3492HCMH/NOPB的Datasheet PDF文件第5页浏览型号LM3492HCMH/NOPB的Datasheet PDF文件第6页浏览型号LM3492HCMH/NOPB的Datasheet PDF文件第7页 
March 28, 2012  
LM3492HC/LM3492HCQ  
Two-Channel Individual Dimmable LED Driver with Boost  
Converter and Fast Current Regulator  
General Description  
Features  
The LM3492HC integrates a boost converter and a two-chan-  
nel current regulator to implement a high efficient and cost  
effective LED driver for driving two individually dimmable LED  
strings with a maximum power of 15W and an output voltage  
of up to 65V. The boost converter employs a proprietary Pro-  
jected-On-Time control method to give a fast transient re-  
sponse with no compensation required, and a nearly constant  
switching frequency programmable from 200 kHz to 1 MHz.  
The application circuit is stable with ceramic capacitors and  
produces no audible noise on dimming. The programmable  
peak current limit and soft-start features reduce current  
surges at startup, and an integrated 190 mΩ, 3.9A N-Channel  
MOSFET switch minimizes the solution size. The fast slew  
rate current regulator allows high frequency and narrow pulse  
width dimming signals to achieve a very high contrast ratio of  
10000:1. The LED current is programmable from 50 mA to  
250 mA by a single resistor.  
Boost Converter:  
LM3492HCQ is an Automotive Grade Product that is AEC  
Q100 grade 1 qualified  
■
Very wide input voltage ranged from 4.5V-65V  
■
■
■
■
Programmable soft-start  
No loop compensation required  
Stable with ceramic and other low ESR capacitors with no  
audible noise  
Nearly constant switching frequency programmable from  
200 kHz to 1 MHz  
■
Current Regulators:  
Programmable LED current from 50 mA to 250 mA  
■
■
■
10000:1 contrast ratio, 300 ns minimum pulse width  
Two individual dimmable LED strings up to 65V, total 15W  
(typically 28 LEDs @ 150 mA)  
To maximize the efficiency, Dynamic Headroom Control  
(DHC) automatically adjusts the output voltage to a minimum.  
DHC also facilitates a single BOM for different number of LED  
in a string, which is required for backlight panels of different  
size, thereby reducing overall development time and cost.  
The LM3492HC comes with a versatile COMM pin which  
serves as a bi-directional I/O pin interfacing with an external  
MCU for the following functions: power-good, over-tempera-  
ture, IOUT over- and under-voltage indications, switching  
frequency tuning, and channel 1 disabling. Other supervisory  
functions of the LM3492HC include precise enable, VCC un-  
der-voltage lock-out, current regulator over-power protection,  
and thermal shutdown protection. The LM3492HC is avail-  
able in the thermally enhanced eTSSOP-20 package.  
Dynamic Headroom Control maximizes efficiency  
■
■
■
Over-Power protection  
±3% current accuracy  
Supervisory Functions:  
Precision enable  
■
■
■
■
COMM I/O pin for diagnostic and commands  
Thermal shutdown protection  
Thermally enhanced eTSSOP-20 package  
Applications  
Ultra-high contrast ratio 6.5”-10” LCD display backlight up  
to 28 LEDs  
■
Automotive or marine GPS display  
■
© 2012 Texas Instruments Incorporated  
301705 SNVS797  
www.ti.com  
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中文翻译

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LM3492HCMH/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM3492HCMHX/NOPB TI

完全替代

 具有升压转换器和电流调节器的高对比度 2 通道独立可调光 LED 驱动器 | PWP |

与LM3492HCMH/NOPB相关器件

型号 品牌 获取价格 描述 数据表
LM3492HCMHX TI

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 		Two-Channel Individual Dimmable LED Driver with Boost Converter and Fast Current Regulator
LM3492HCMHX/NOPB TI

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 		具有升压转换器和电流调节器的高对比度 2 通道独立可调光 LED 驱动器 | PWP |
LM3492HC-Q1 TI

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 		具有升压转换器和电流调节器的汽车类高对比度 2 通道可调光 LED 驱动器
LM3492HCQMH TI

获取价格

 		Two-Channel Individual Dimmable LED Driver with Boost Converter and Fast Current Regulator
LM3492HCQMH/NOPB TI

获取价格

 		具有升压转换器和电流调节器的汽车类高对比度 2 通道可调光 LED 驱动器 | PWP |
LM3492HCQMHX TI

获取价格

 		Two-Channel Individual Dimmable LED Driver with Boost Converter and Fast Current Regulator
LM3492HCQMHX/NOPB TI

获取价格

 		具有升压转换器和电流调节器的汽车类高对比度 2 通道可调光 LED 驱动器 | PWP |
LM3492MH TI

获取价格

 		Two-Channel Individual Dimmable LED Driver with Boost Converter and Fast Current Regulator
LM3492MH/NOPB TI

获取价格

 		具有升压转换器和快速电流调节器的 2 通道独立可调光 LED 驱动器 | PWP | 20
LM3492MHX/NOPB TI

获取价格

 		具有升压转换器和快速电流调节器的 2 通道独立可调光 LED 驱动器 | PWP | 20

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