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NCV7683: LED 驱动器,汽车,八路,100 mA 序列

Datasheet: Enhanced 100 mA Linear Current Regulator and Controller for Automotive Sequenced LED Lighting
Rev. 3 (190kB)
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NCV7683 由八个 100 mA 线性可编程恒定电流源组成。该零部件适用于汽车应用中基于 LED 的 后尾组合灯调节和控制以及闪烁功能。带有 NCV7683 的系统设计可实现两种截止编程水平(100% 占空比)和尾部照明(可编程占空比),还可以实施可选的外部 PWM 控制。 LED 亮度可通过两个外部电阻轻松编程(截止编程为绝对电流值,尾部编程为占空比)。可选外部镇流器 FET 的使用可在需要高电流的设计上实现功率分配。回退功率限制降低了过电压条件下的驱动电流。这对于不使用外部 FET 的低功率应用最有用。 序列功能通过单独的引脚进行激活、控制和编程。除了系列间隔的编程以外,该器件还可以安排 8 个单输出沟道、4 个成对输出沟道、2 个四输出沟道或一次所有 8个沟道的序列(用于高电流下的多个集成电路)。 此器件的增强功能是一款全局启用功能和显示序列。 该器件采用带有裸露焊盘的 SSOP−24 封装。
特性   优势
     
  • Constant Current Outputs for LED String Drive
 
  • Current source drive optimized for LED drive.
  • LED Drive Current up to 100mA per Channel
 
  • Flexibility for lower current LEDs.
  • Open LED String Diagnostic with Open-Drain Output in All Modes
 
  • Detection of open loads is detected in STOP, TAIL, and Sequence On modes.
  • Slew Rate Control
 
  • Eliminates EMI concerns.
  • Low Dropout Operation
 
  • Allows operation in Pre-Regulator Applications.
  • External Modulation Capable.
 
  • User defined LED intensity.
  • On-Chip 800 Hz Tail PWM Dimming
 
  • Removes PWM feature out of the microprocessor.
  • Single Resistor for Stop Current Set Point
 
  • Easily programmable across platforms.
  • Single Resistor for Tail Dimming Set Point
 
  • Easily programmable across platforms.
  • Overvoltage Set Back Power Limitation
 
  • Allow longer functionality in extended input voltage range..
  • AEC-Q100 Qualified and PPAP Capable
 
  • Fits in automotive applications.
  • SSOP-24 Fused Lead Package with Exposed Pad
 
  • Thermally enhanced package for higher power operation.
  • Improved EMC Performance
 
  • Eliminated need for inductive bead on Vbat.
  • Programmable Latch-Off function on Open String
 
  • Designer flexibility to one off, all off LED turn off feature.
  • Overtemperature Fault Reporting
 
  • Noification of unacceptable operational condition.
  • Global Enable
 
  • Allows sequencing of multiple NCV7683 devices.
  • Display Sequencing
 
  • Implements blinker functionality.
应用   终端产品
  • Automotive Rear Combination Lamps
  • Automotive Daytime Running Lights
  • Automotive Fog Lights
  • Automotive Center High Mounted Stop Lamps (CHMSL)
  • Turn Signal and Other Externally Modulated Applications
  • Signature Lamp
 
  • Automobile
技术文档及设计资源
数据表 (1) 评估板文档 (5)
封装图纸 (1)  
评估/开发工具信息
产品 状况 Compliance 简短说明 行动
NCV7683GEVB Active
Pb-free
8 Channel Enhanced 100 mALinear Current Regulator and Controller for Automotive LED Lighting in Daisy Chain Sequencing Application Evaluation Board
Availability & Samples
Specifications
Interactive Block Diagram
产品
状况
Compliance
具体说明
封装
MSL
容器
预算价格 (1千个数量的单价)
类型
外形
类型
Temperature
类型
数量
NCV7683DQR2G Active
AEC Qualified
PPAP Capable
Pb-free
Halide free
NCV7683 SSOP-24 NB EP 940AP 3 260 Tape and Reel 2500 Contact Sales Office
市场订货至交货的时间(周) : Contact Factory

Product
Description
Pricing ($/Unit)
Compliance
Status
VI Max (V)
IO Max (mA)
LEDs in Series, Max #
LEDs in Parallel, Max #
Package Type
NCV7683DQR2G  
Pb
A
H
P
 Active   
40
200
4
24
SSOP-24 NB EP
外形
940AP   
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NCV7685  12-Channel Linear Current Driver for Automotive LED Lighting

  • Twelve current sources with global current setting up to 60 mA and diagnostics
  • Independent PWM duty cycle control via I2C for each channel
  • Operates as stand-alone or MCU-controlled, and with optional external MOSFET ballast transistor

NCV7691  NCV7692  Current Controllers for Automotive LED Lighting

  • Constant current output for LED string drive
  • Dedicated dimming feature via PWM input
  • Multiple LED string control with one controller

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