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The LED7706 consists of a high efficiency monolithic boost converter and six controlled current generators (rows) specifically designed to supply LEDs arrays used in the backlighting of LCD panels. The device can manage an output voltage up to 36 V (i.e. 10 white LEDs per row).
The generators can be externally programmed to sink up to 30 mA and can be dimmed via a PWM signal (1 % dimming duty-cycle at 20 kHz can be managed). The device allows to detect and manage the open and shorted LED faults and to let unused rows floating. Basic protections (output over-voltage, internal MOSFET over-current and thermal shutdown) are provided.
主要特性
- Boost section
4.5 V to 36 V input voltage range Internal power MOSFET Internal +5 V LDO for device supply Up to 36 V output voltage Constant frequency peak current-mode control 250 kHz to 1 MHz adjustable switching frequency External synchronization for multi-device application Pulse-skip power saving mode at light load Programmable soft-start Programmable OVP protection Stable with ceramic output capacitors Thermal shutdown - Backlight driver section
Six rows with 30 mA maximum current capability (adjustable) Rows disable option Less than 500 ns minimum dimming ontime (1 % minimum dimming duty-cycle at 20 kHz) ±2 % current matching between rows LED failure (open and short-circuit) detection
- Boost section
精选 视频
Watch the ALED1262ZT video, an automotive-grade 12-Channel LED Driver for advanced rear lighting solutions
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产品规格 (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 25 Sep 2020 |
25 Sep 2020
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应用手册 (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 28 Feb 2020 |
28 Feb 2020
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宣传册 (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 25 Feb 2020 |
25 Feb 2020
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手册 (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 18 Mar 2020 |
18 Mar 2020
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EDA Symbols, Footprints and 3D Models
STMicroelectronics - LED7706
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
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样片和购买
| 产品型号 | 从分销商订购 | 从ST订购 | 供货状态 | ECCN (US) | ECCN (EU) | 包装类型 | 封装 | 温度（ºC） | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||
| LED7706TR | 3 distributors | Free Sample Buy Direct |
批量生产
|
EAR99 | NEC | Tape And Reel | QFN-24L | - | - | PHILIPPINES | 1.023 / 1k | |
