Datasheet ALED6000 (STMicroelectronics) - 7

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ALED6000 Electrical characteristics 4 Electrical characteristics
TJ = -40 to +125 °C, VIN = VCC = 24 V and VDIM=VEN =3 V unless otherwise specified.
Table 5. Electrical characteristics Symbol Parameter Test conditions Min. Typ. Max. Unit
VIN Operating input voltage range 4.5 61 V ILX=0.5 A; TJ = 25 °C 0.25 0.32 Ω RDSON HS High-side RDSON ILX=0.5 A 0.25 0.46 Ω FSW pin floating; TJ = 25 °C 233 250 267 kHz Switching frequency fSW FSW pin floating 225 250 275 kHz Selected switching frequency RFSW=10 kΩ 1350 1500 1650 kHz Peak current limit ILIM pin floating; VFB = 0 V (1) 3.4 4.1 4.8 A IPK Selected peak current limit RILIM=100 kΩ; VFB = 0 V (1) 0.69 0.84 1.00 A ILIM pin floating (1) 0.40 A ISKIP Pulse skipping peak current RILIM=100 kΩ (1) 0.15 A TONMIN Minimum on-time 120 150 ns Refer to Functional description section for TONMAX Maximum on-time TONMAX details. 12 μs TOFFMIN Minimum off-time (2) 360 ns VCC / VBIAS VCCH VCC UVLO rising threshold 3.85 4.10 4.30 V VCCHYST VCC UVLO hysteresis 150 250 380 mV Switch internal supply from VIN to VBIAS 2.84 2.90 3.03 V VBIAS threshold Hysteresis 80 mV SWO Switch internal supply from VCC to VBIAS. VIN=VCC=24 V, VBIAS falling 3.35 4.05 4.90 V VCC -VBIAS threshold from 24 V to GND Hysteresis 900 mV Power consumption VEN = GND; TJ=25 °C 11 16 μA ISHTDWN Shutdown current from VIN VEN = GND 23 45 μA LX floating, V I Quiescent current from VIN and FB=1 V, VBIAS=GND, FSW QUIESC 2.5 3.0 mA VCC floating I Quiescent current from VIN and QOPVIN 1.0 1.3 mA VCC LX floating, VFB=1 V, VBIAS=3.3 V, FSW floating IQOPVBIAS Quiescent current from VBIAS 1.6 2.2 mA Enable VENL Device OFF level 0.06 0.30 V VENH Device ON level 0.35 0.90 V Soft-start
DS13018
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Rev 2 page 7/45
Document Outline Cover image Features Applications Description 1 Application schematic 2 Block diagram 3 Pin settings 3.1 Pin connection 3.2 Pin description 3.3 Maximum ratings 3.4 Thermal data 3.5 ESD protection 4 Electrical characteristics 5 Functional description 5.1 Oscillator and synchronization 5.2 Soft-start 5.3 Digital dimming 5.4 Error amplifier and light-load management 5.5 Low VIN operation 5.6 Overcurrent protection 5.7 Overtemperature protection 6 Application information 6.1 Input capacitor selection 6.2 Output capacitor and inductor selection 6.3 Compensation strategy 6.4 Thermal considerations 6.5 Layout considerations 7 Demonstration board 8 Application notes – alternative topologies 8.1 Inverting buck-boost 8.2 Positive buck-boost 8.3 Floating boost 8.4 Compensation strategy for alternative topologies 9 Package information 9.1 HTSSOP16 package information Revision history