产品概要
描述
This demonstration boards is based on the LED7707 and implements a high efficiency monolithic boost converter and six controlled current generators (rows) specifically designed to supply LEDs arrays used in the backlight of LCD panels.
The device can manage an output voltage up to 36 V (i.e. ten white-LEDs per row).
The generators can be externally programmed to sink up to 85 mA and can be dimmed via a PWM signal (1% of minimum dimming duty cycle at 1kHz 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 overvoltage, internal MOSFET overcurrent and thermal shutdown) are provided.
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性能一览
- Features 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 sync for multi-device application pulse-skip power saving mode at light load programmable soft-start programmable OVP protection single ceramic output capacitor non-latched thermal shutdown - RoHS compliant
- Features backlight driver section
six rows with 85 mA maximum current capability (adjustable) up to 10 white LEDs per row rows disable option less than 10 μs minimum dimming time ±2.0% current matching between rows LED failure (open and short circuit) detection
- Features boost section
特别推荐
所有资源
| Resource title | 版本 | Latest update | Actions | Details | 下載 |
|---|
Board Manufacturing Specifications (1)
| Resource title | 版本 | Latest update | Actions | Options | ||
|---|---|---|---|---|---|---|
| ZIP | 1.0 | 01 Aug 2015 | 01 Aug 2015 |
BOM (1)
| Resource title | 版本 | Latest update | Actions | Options | ||
|---|---|---|---|---|---|---|
| 1.0 | 01 Aug 2015 | 01 Aug 2015 |
Schematic Pack (1)
| Resource title | 版本 | Latest update | Actions | Options | ||
|---|---|---|---|---|---|---|
| 1.0 | 01 Aug 2015 | 01 Aug 2015 |
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | 符合RoHS级别 | WEEE Compliant | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|---|
| STEVAL-ILL021V1 | Active 产品已量产 | CARD | Industrial | Ecopack2 | - | - | - | |
STEVAL-ILL021V1
Package:
CARDMaterial Declaration**:
(**) 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。
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Sample & Buy
| Part Number | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Supplier | Core Product | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STEVAL-ILL021V1 | | | distributors 无法联系到经销商，请联系我们的销售办事处 |
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STEVAL-ILL021V1 Active