HB LED driver with inhibit based on the ST1CC40 in an SO-8 BW package

The STEVAL-ILL046V2 evaluation board is based on the ST1CC40, which 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 of up to 3 A DC.

In closed loop operation, the ST1CC40 feedback pin voltage is 100 mV, thus the sensing resistor calculation is expressed as Rs = 100 mV/ILED.

The STEVAL-ILL046V2 is provided with 660 mA by connecting a 150 mW sensing resistor to the feedback pin.

The overall application size is minimized, thanks to the high switching frequency and ceramic output capacitor compatibility.

The STEVAL-ILL046V2 evaluation board is fully protected against overheating, overcurrent and output short-circuit.

The inhibit mode minimizes the current consumption in standby (6 µA) to maximize battery life in portable devices.

Key Features

  • 3 to 18 V operating input voltage range
  • 850 kHz fixed switching frequency
  • 100 mV (typ) current sense voltage drop
  • 6 µA standby current in inhibit mode
  • ±7% output current accuracy
  • Synchronous rectification
  • Embedded compensation network
  • Internal current limiting
  • Ceramic output capacitor compliant
  • Thermal shutdown
  • RoHS compliant

Image

×

Design

Technical Documentation

Product Specifications
Description Version Size
DB1863 DB1863: HB LED driver with inhibit based on the ST1CC40 in an SO-8 BW package 2.0 210 KB

Hardware Resources

Board Manufacturing Specifications
Description Version Size
STEVAL-ILL046V2 gerber files 1.0 178 KB
Bill of Materials
Description Version Size
STEVAL-ILL046V2 BOM 1.0 8 KB
Schematic Packs
Description Version Size
STEVAL-ILL046V2 schematics 2.0 42 KB

Legal

License Agreement
Description Version Size
Evaluation products license agreement 1.0 125 KB
Support & Community

Sample & Buy

Part Number Core Product Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STEVAL-ILL046V2 ST1CC40 Active 35.53 1 NEC EAR99 ITALY MORE INFO Buy Direct Add to cart DISTRIBUTOR AVAILABILITY
test

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STEVAL-ILL046V2 ActiveCARDIndustrialEcopack2
test

(**) 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.

×