LED7708

批量生产

16 通道 x 85 mA LED驱动器,配有增压控制器及4线串行接口

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概述
样片和购买
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质量与可靠性
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  • The LED7708 has been specifically designed to supply several LEDs starting from a single low-voltage rail. It integrates a boost controller, sixteen current generators and a 4-wire serial interface. The boost controller regulates the output voltage in an adaptive way, according to the LED requirements, resulting in an improved overall efficiency. All the current generators are 40 V-rated, allowing the LED7708 to drive several LEDs in series on each channel. The channels can be put in parallel for higher output current.

    The brightness of the LEDs is controlled by using the serial interface. A selectable 12-bit or 16-bit grayscale brightness control allows independent PWM on each channel. A programmable on-chip dimming oscillator is provided for external circuitry simplification. The device has dedicated pins to lock to an external synchronization with other devices (master or slave) for noise reduction in multi-device applications. The LED7708 implements basic protection (OVP, OCP and thermal shutdown) as well as LED array protection. It can detect and manage open-LED and shorted-LED faults and different fault-management options are available in order to cover most application needs.

    主要特性

    • Boost controller section
      • 3.6 V to 36 V input voltage range (LDO)
      • Adaptive output voltage for high efficiency
      • Internal +5 V LDO for gate driver supply
      • Internal +3.3 V LDO for device supply
      • High performance external MOSFET driver
      • 250 kHz to 1 MHz switching frequency
      • Programmable OV and OC protection
      • Fixed frequency peak current-mode control
      • External synchronization for multi-device application
      • Overtemperature alert and thermal shutdown
    • LED array driver section
      • 16 channels with 85 mA/ch current capability
      • ±2% channel current accuracy
      • ±2% channel-to-channel current matching
      • LED short-circuit and open channel fault detection and management
      • 4-wire, 30 MHz serial interface
      • 16 x16-bit, 1x256-bit or 1x192-bit serial data formats
      • Grouped or independent channel PWM control
      • Selectable 12/16-bit grayscale brightness control for local dimming
      • Programmable internal dimming oscillator
      • Programmable grayscale latency
      • Master/slave chain configuration supported

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相关应用

LED照明和控制

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    • 产品型号

      基于LED7708和STM32F103C6T6A的多通道LED驱动器,具有用于中等、大尺寸LCD面板背光的集成增压控制器

      基于LED7708和STM32F103C6T6(子板)的多通道LED驱动器,具有用于中等/大尺寸LCD面板背光的集成增压控制器

00 选择要下载的文档

技术文档

    • 描述 版本 文档大小 操作
      DS8850
      16 channels x 85 mA LED driver with boost controller and 4-wire serial interface
      1.0
      855.41 KB
      PDF
      DS8850

      16 channels x 85 mA LED driver with boost controller and 4-wire serial interface

    • 描述 版本 文档大小 操作
      AN4578
      16-channels LED driver with independent PWM dimming control based on LED7708
      2.0
      2.38 MB
      PDF
      AN4578

      16-channels LED driver with independent PWM dimming control based on LED7708

出版刊物和宣传资料

    • 描述 版本 文档大小 操作
      LED drivers for backlighting and lighting applications 2.1
      1.78 MB
      PDF

      LED drivers for backlighting and lighting applications

质量与可靠性

产品型号 供货状态 封装 等级规格 符合RoHS级别 材料声明**
LED7708
预览
VFQFPN 48 7x7x1.0 Industrial Ecopack2
LED7708TR
批量生产
VFQFPN 48 7x7x1.0 Industrial Ecopack2

LED7708

Package:

VFQFPN 48 7x7x1.0

Material Declaration**:

PDF XML

Marketing Status

预览

Package

VFQFPN 48 7x7x1.0

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LED7708TR

Package:

VFQFPN 48 7x7x1.0

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

VFQFPN 48 7x7x1.0

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此,它们可能不是100%适用于特定的设备。有关特定设备的信息,请联系 销售支持

eDesignSuite

LED驱动器

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

LED自定义

V This option is required.
A This option is required.
Ω This option is required.

LEDs

This option is required. And must be a whole positive number between 1 and 20.
This option is required. And must be a whole positive number between 1 and 20.

样片和购买

产品型号
从分销商订购
从ST订购
供货状态
封装
包装类型
温度(ºC) ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
最小值
最大值
LED7708TR Available at 3 distributors

...的经销商可用性LED7708TR

代理商名称
地区 Stock 最小订购量 第三方链接
DIGIKEY WORLDWIDE 1387 1 马上订购
MOUSER WORLDWIDE 2331 1 马上订购
Farnell Element14 EUROPE 2341 1 马上订购

代理商库存报告日期: 2020-07-05

代理商名称

DIGIKEY

Stock

1387

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

Stock

2331

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

Stock

2341

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-07-05

获取样片
批量生产
VFQFPN 48 7x7x1.0 Tape And Reel -40 150 EAR99 PHILIPPINES 1.591 / 1k
LED7708 没有经销商,请联系我们的销售办事处
预览
VFQFPN 48 7x7x1.0 Tray -40 150 EAR99 PHILIPPINES 1.591 / 1k

LED7708TR

供货状态

批量生产

单价(US$)

1.591

Budgetary Price (US$)*/Qty

1.591 / 1k

...的经销商可用性LED7708TR

代理商名称
地区 Stock 最小订购量 第三方链接
DIGIKEY WORLDWIDE 1387 1 马上订购
MOUSER WORLDWIDE 2331 1 马上订购
Farnell Element14 EUROPE 2341 1 马上订购

代理商库存报告日期: 2020-07-05

代理商名称

DIGIKEY

Stock

1387

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

Stock

2331

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

Stock

2341

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-07-05

封装

VFQFPN 48 7x7x1.0

包装类型

Tape And Reel

Operating Temperature (°C)

(最小值)

-40

(最大值)

150

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

LED7708

供货状态

预览

单价(US$)

1.591

Budgetary Price (US$)*/Qty

1.591 / 1k

封装

VFQFPN 48 7x7x1.0

包装类型

Tray

Operating Temperature (°C)

(最小值)

-40

(最大值)

150

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商