Datasheet ALED6000 (STMicroelectronics) - 8
| Fabricante | STMicroelectronics |
| Descripción | Automotive 3 A 61 V monolithic current source with dimming capability |
| Páginas / Página | 45 / 8 — ALED6000. Electrical characteristics. Symbol. Parameter. Test conditions. … |
| Formato / tamaño de archivo | PDF / 3.4 Mb |
| Idioma del documento | Inglés |
ALED6000. Electrical characteristics. Symbol. Parameter. Test conditions. Min. Typ. Max. Unit. DS13018. Rev 2. page 8/45
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ALED6000 Electrical characteristics Symbol Parameter Test conditions Min. Typ. Max. Unit
T Delay from UVLO rising to switching SSSETUP Soft-start set-up time (2) 640 μs activity ISSCH CSS charging current VSS=GND 4.3 5.0 5.7 μA Error amplifier TJ = 25 °C 0.242 0.250 0.258 V VFB Voltage feedback 0.240 0.250 0.260 V VCOMPH VFB = GND; VSS =3.2 V 3.00 3.35 3.65 V VCOMPL VFB = 3.6 V; VSS = 3.2 V 0.1 V IFB FB biasing current VFB = 3.6 V 5 50 nA IOSOURCE VFB = GND; SS pin floating; VCOMP = 2 V (2) 3.1 mA Unity gain buffer configuration (FB connected to COMP). COMP voltage I variation due to I OSINK Output stage sinking capability OSINK injection lower (2) 5.0 mA than ± 0.1·VFB AV0 Error amplifier gain (2) 100 dB Unity gain buffer configuration (FB GBWP connected to COMP). No load on COMP (2) 23 MHz pin Synchronization (fan out: 5 slave devices max.) fSYN MIN Synchronization frequency Pin FSW pin floating 280 kHz ILOAD = 4 mA 2.45 VSYNOUT Master output amplitude V ILOAD = 0 A; pin SYNCH floating 4.0 VSYNOW Output pulse width ILOAD = 0 A; pin SYNCH floating 150 225 275 ns VSYNIH 2.0 SYNCH slave input threshold V VSYNIL 1.0 ISYN Slave SYNCH pull-down current VSYNCH = 5 V 400 650 900 μA VSYNIW Input pulse width 150 ns Dimming VDIMH DIM rising threshold 1.23 1.70 V VDIML DIM falling threshold 0.75 1.00 V VDIMPD DIM pull-down current VDIM = 2 V 0.5 1.5 2.5 μA TDIMTO Dimming timeout (2) 42 ms Thermal shutdown TSHDWN Thermal shutdown temperature (2) 170 °C THYS Thermal shutdown hysteresis (2) 15 °C 1. Parameters tested in static condition during testing phase. The parameter value may change over dynamic application conditions. 2. Not tested in production.
DS13018
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Rev 2 page 8/45
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
ALED6000 Electrical characteristics Symbol Parameter Test conditions Min. Typ. Max. Unit
T Delay from UVLO rising to switching SSSETUP Soft-start set-up time (2) 640 μs activity ISSCH CSS charging current VSS=GND 4.3 5.0 5.7 μA Error amplifier TJ = 25 °C 0.242 0.250 0.258 V VFB Voltage feedback 0.240 0.250 0.260 V VCOMPH VFB = GND; VSS =3.2 V 3.00 3.35 3.65 V VCOMPL VFB = 3.6 V; VSS = 3.2 V 0.1 V IFB FB biasing current VFB = 3.6 V 5 50 nA IOSOURCE VFB = GND; SS pin floating; VCOMP = 2 V (2) 3.1 mA Unity gain buffer configuration (FB connected to COMP). COMP voltage I variation due to I OSINK Output stage sinking capability OSINK injection lower (2) 5.0 mA than ± 0.1·VFB AV0 Error amplifier gain (2) 100 dB Unity gain buffer configuration (FB GBWP connected to COMP). No load on COMP (2) 23 MHz pin Synchronization (fan out: 5 slave devices max.) fSYN MIN Synchronization frequency Pin FSW pin floating 280 kHz ILOAD = 4 mA 2.45 VSYNOUT Master output amplitude V ILOAD = 0 A; pin SYNCH floating 4.0 VSYNOW Output pulse width ILOAD = 0 A; pin SYNCH floating 150 225 275 ns VSYNIH 2.0 SYNCH slave input threshold V VSYNIL 1.0 ISYN Slave SYNCH pull-down current VSYNCH = 5 V 400 650 900 μA VSYNIW Input pulse width 150 ns Dimming VDIMH DIM rising threshold 1.23 1.70 V VDIML DIM falling threshold 0.75 1.00 V VDIMPD DIM pull-down current VDIM = 2 V 0.5 1.5 2.5 μA TDIMTO Dimming timeout (2) 42 ms Thermal shutdown TSHDWN Thermal shutdown temperature (2) 170 °C THYS Thermal shutdown hysteresis (2) 15 °C 1. Parameters tested in static condition during testing phase. The parameter value may change over dynamic application conditions. 2. Not tested in production.
DS13018
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Rev 2 page 8/45
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