Product overview
Description
The LED2001 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 4 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 RSENSE voltage 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 LED2001 is available in VFQFPN 4x4 mm 8-lead package, and HSOP8.
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All features
- 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
- Ceramic output capacitor compliant
- Internal current limiting
- Thermal shutdown
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LED Lighting Design Tool
Handles AC-DC and DC-DC design in common topologies Displays interactive and annotated schematic Provides current/voltage graphs, Bode plots, efficiency curves and power-loss data Start your design with the LED2001 now
xwith our eDesignSuite online design aid utilities and simulation tools.
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STMicroelectronics - LED2001
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| LED2001PHR | Active | PowerSO-8 | Industrial | Ecopack2 | |
| LED2001PUR | Active | VFDFPN 8 4x4x1.0 | Industrial | Ecopack2 | |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Order from distributors | Order from ST | Marketing Status | ECCN (US) | ECCN (EU) | Packing Type | Package | Temperature (°C) | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| LED2001PHR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | PowerSO-8 | -40 | 150 | PHILIPPINES | | ||
| LED2001PUR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | VFDFPN 8 4x4x1.0 | -40 | 150 | MALAYSIA | | ||
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors