Overview
The LED2000PUR, produced by STMicroelectronics, is a monolithic step-down DC-DC converter designed to operate as a precise constant current source. It features an adjustable current capability up to 3 A DC and an 850 kHz fixed switching frequency. This device is particularly suited for LED lighting applications, offering PWM dimming and high efficiency due to its synchronous rectification and low current sense voltage drop.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Input Voltage Range | 3.0 V to 18 V |
| Switching Frequency | 850 kHz |
| Maximum Output Current | Up to 3 A DC |
| Current Sense Voltage Drop | 100 mV (typ.) |
| Output Current Accuracy | ± 7% |
| RDS(on) (HS / LS) | 95 mΩ (HS) / 69 mΩ (LS) (typ.) |
| Package | VFQFPN 8 4x4x1.0 mm |
| Operating Temperature Range | -40°C to 150°C |
Key Features
- PWM dimming for LED brightness control
- Synchronous rectification for high efficiency
- Peak current mode architecture
- Embedded compensation network
- Internal current limiting and thermal shutdown for protection
- Ceramic output capacitor compliant
- High switching frequency to minimize application size
Applications
The LED2000PUR is primarily used in LED lighting applications, including but not limited to:
- High-brightness LED drivers
- General lighting systems requiring precise current control
- Automotive lighting systems
- Industrial lighting solutions
Q & A
- What is the maximum output current of the LED2000PUR?
The maximum output current of the LED2000PUR is up to 3 A DC.
- What is the switching frequency of the LED2000PUR?
The switching frequency of the LED2000PUR is 850 kHz.
- Does the LED2000PUR support PWM dimming?
- What is the typical current sense voltage drop of the LED2000PUR?
The typical current sense voltage drop of the LED2000PUR is 100 mV.
- What are the package options for the LED2000PUR?
The LED2000PUR is available in VFQFPN 8 4x4x1.0 mm and SO-8 packages.
- Does the LED2000PUR have built-in protection features?
- What is the operating temperature range of the LED2000PUR?
The operating temperature range of the LED2000PUR is -40°C to 150°C.
- Is the LED2000PUR RoHS compliant?
- What type of rectification does the LED2000PUR use?
The LED2000PUR uses synchronous rectification for high efficiency.
- Can the LED2000PUR be used with ceramic output capacitors?
