产品概述
描述
The LED5000 device is an 850 kHz fixed switching frequency monolithic step-down DC-DC converter designed to operate as a 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 level is set by connecting a sensing resistor to the feedback pin. The 200 mV typical RSENSE voltage drop enhances performance in terms of efficiency. The size of the overall application is minimized thanks to the high switching frequency and its compatibility with ceramic output capacitors. The device is fully protected against overheating, overcurrent and output short-circuit. The LED5000 is available in an HSOP8 package.
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所有功能
- 5.5 V to 48 V operating input voltage range
- 850 kHz fixed switching frequency
- 200 mV typ. current sense voltage drop
- Buck / buck-boost / floating boost topologies
- PWM dimming
- ± 3% output current accuracy overtemperature
- 200 mΩ typical RDSON
- Peak current mode architecture
- Short-circuit protection
- Compliant with ceramic output capacitors
- Inhibit for zero current consumption
- Thermal shutdown
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STMicroelectronics - LED5000
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符号
封装
3D模型
样片和购买
| 产品型号 | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | 封装 | 包装类型 | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | 温度（ºC） | Operating Temperature (°C) (min) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||||
| LED5000PHR | | | distributors 无法联系到经销商，请联系我们的销售办事处 | PowerSO-8 | Tape and Reel | PHILIPPINES | EAR99 | NEC | -40 | 150 | -40 | |||
LED5000PHR 批量生产