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HB LED driver with inhibit based on the ST1CC40 in a QFN package

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In stock
Parameter NameParameter Value
Target ApplicationLED Lighting
Core ProductST1CC40
Input Voltage Min Volt3.0
Input Voltage Max Volt18.0
Packing TypeNot Applicable
RoHs compliantEcopack2
Package NameCARD

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