STEVAL-ILL046V1:HB LED driver with inhibit based on the ST1CC40 in a QFN package

The STEVAL-ILL046V1 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-ILL046V1 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-ILL046V1 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
Product Specifications
DescriptionVersionSize
DB1862: HB LED driver with inhibit based on the ST1CC40 in a QFN package2.0210 KB
Board Manufacturing Specifications
DescriptionVersionSize
STEVAL-ILL046V1 gerber files1.017 KB
Bill of Materials
DescriptionVersionSize
STEVAL-ILL046V1 BOM1.074 KB
Schematic Packs
DescriptionVersionSize
STEVAL-ILL046V1 schematics2.051 KB
License Agreement
DescriptionVersionSize
Evaluation products license agreement1.0125 KB
Sample & Buy
Part NumberCore ProductUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
STEVAL-ILL046V1ST1CC4035.531NECEAR99ITALY
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
STEVAL-ILL046V1CARDIndustrialEcopack2
HB LED driver with inhibit based on the ST1CC40 in a QFN package STEVAL-ILL046V1
HB LED driver with inhibit based on the ST1CC40 in a QFN package STEVAL-ILL046V1
HB LED driver with inhibit based on the ST1CC40 in a QFN package STEVAL-ILL046V1
HB LED driver with inhibit based on the ST1CC40 in a QFN package STEVAL-ILL046V1
ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32 ST-LINK-V2