LED5000：3 A monolithic step-down current source with dimming capability
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.
Key Features
- 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
Product Specifications
Brochures
Solution Evaluation Tools
| Part Number | Manufacturer | Description |
|---|
| STEVAL-ILL056V1 | | 3 A buck LED driver board based on the LED5000 |
| STEVAL-ILL063V1 | ST | 3 A LED driver based on the LED5000 in floating boost topology |
| STEVAL-ILL064V1 | ST | 3 A LED driver based on the LED5000 in BB- topology |
| STEVAL-ILL065V1 | ST | 3 A LED driver based on the LED5000 in BB+ topology |
Sample & Buy
| Part Number | Quantity | Unit Price (US$)
* | Package | Packing Type | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | ECCN (EU) | ECCN (US) | Country of Origin |
|---|
| LED5000PHR | 1000 | 0.961 | PowerSO-8 | Tape And Reel | -40 | 150 | NEC | EAR99 | PHILIPPINES |
Quality & Reliability
