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The LED2000 is an 850 kHz fixed switching frequency monolithic step-down DC-DC converter designed to operate as precise constant current source with an adjustable current capability up to 3 A DC. The embedded PWM dimming circuitry features LED brightness control. The regulated output current is set connecting a sensing resistor to the feedback pin. The embedded synchronous rectification and the 100 mV typical RSENSEvoltage drop enhance the efficiency performance. The size of the overall application is minimized thanks to the high switching frequency and ceramic output capacitor compatibility. The device is fully protected against thermal overheating, overcurrent and output short-circuit. The LED2000 is available in VFQFPN 4 mm x 4 mm 8-lead, and standard SO8 package.
主要特性
- 3.0 V to 18 V operating input voltage range
- 850 kHz fixed switching frequency
- 100 mV typ. current sense voltage drop
- PWM dimming
- ± 7% output current accuracy
- Synchronous rectification
- 95 mΩ HS / 69 mΩ LS typical RDS(on)
- Peak current mode architecture
- Embedded compensation network
- Internal current limiting
- Ceramic output capacitor compliant
- Thermal shutdown
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 | |||
|---|---|---|---|---|
| 22 Oct 2020 |
22 Oct 2020
|
CAD/EDA Symbols, Footprints and Models
质量与可靠性
| 产品型号 | Marketing Status | 封装 | 等级规格 | 符合RoHS级别 | 材料声明** |
|---|---|---|---|---|---|
| LED2000DR |
批量生产
|
SO-8 | 工业 | Ecopack2 | |
| LED2000PUR |
批量生产
|
VFDFPN 8 4x4x1.0 | 工业 | 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 。
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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$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||
| LED2000DR | 1 distributors |
批量生产
|
EAR99 | NEC | Tape And Reel | SO-8 | -40 | 125 | CHINA | 0.775 / 1k | ||
| LED2000PUR | 5 distributors | Free Sample Buy Direct |
批量生产
|
EAR99 | NEC | Tape And Reel | VFDFPN 8 4x4x1.0 | -40 | 125 | MALAYSIA | 0.91 / 1k | |
供货状态
批量生产ECCN (US)
EAR99Budgetary Price (US$)*/Qty
0.775 / 1k