Preliminary Datasheet EL7801 (Intersil) - 3
| Fabricante | Intersil |
| Descripción | High Power LED Driver |
| Páginas / Página | 16 / 3 — EL7801. Electrical Specifications. PARAMETER. DESCRIPTION. CONDITIONS. … |
| Formato / tamaño de archivo | PDF / 412 Kb |
| Idioma del documento | Inglés |
EL7801. Electrical Specifications. PARAMETER. DESCRIPTION. CONDITIONS. MIN. TYP. MAX. UNIT. TABLE 1. LIGHT OUTPUT CONTROL, VDC = 5.0V. MODE
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EL7801 Electrical Specifications
VBAT = VIN = 12V, VDC = 5V, IOUT = 350mA, TA = -40°C to +85°C unless otherwise specified.
PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT
TDELAY Start-up Delay Timed LX switching delay TBD 1 ms VGATE External FET Gate Clamp |VFAULT - VIN| TBD 10 TBD V VFAULTPUMP Fault Pin Charge Pump VBAT = VIN = 3V 6 V VMODEL Mode Pin Input Low Threshold VDC = 5V VDC/3 V VMODEH Mode Pin Input Low Threshold VDC = 5V 2 x V VDC/3 enFLASH Input Level Applied to TEMP Pin to Enter VDC = 5V 0.96VDC V Flash Mode disFLASH Input Level Applied to TEMP Pin to Exit VDC = 5V 0.94VDC V Flash Mode enFAULT Input Level Applied to TMAX Pin to VDC = 5V 0.94VDC V Enable Fault Protection disFAULT Input Level Applied to TMAX Pin to VDC = 5V 0.96VDC V Disable Fault Protection enTEMP Input Level Applied to TEMP Pin to VDC = 5V 0.06VDC V Enable Temperature Compensation disTEMP Input Level Applied to TEMP Pin to VDC = 5V 0.04VDC V Disable Temperature Compensation TTRIP Internal Temperature Protection 125 C Threshold VEN/PWML EN/PWM Pin Input Low Threshold 1.2 V VEN/PWMH EN/PWM Pin Input High Threshold 2.5 V .
TABLE 1. LIGHT OUTPUT CONTROL, VDC = 5.0V MODE TEMP OPERATING MODE
1 (VDC - 0.25V) > V > 0.25V
Standard Mode
light level to PWM modulation of EN/PWM input; LED bias current determined by LEVEL voltage, nominal 1V Don’t Care V > (VDC - 0.25V)
Flash Mode
, internal current limit set to 6A; duration of flash set by ENABLE/PWM input; TON max limited internally to 25ms, VFB = 0.4V, independent of VLEVEL Don’t Care V < 0.25V Disable temperature compensation 0 V < (VDC - 0.25V)
Fixed Bias Mode
VFB level internally set to 0.4V, independent of VLEVEL 3 FN7354.0 December 22, 2005
VBAT = VIN = 12V, VDC = 5V, IOUT = 350mA, TA = -40°C to +85°C unless otherwise specified.
PARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNIT
TDELAY Start-up Delay Timed LX switching delay TBD 1 ms VGATE External FET Gate Clamp |VFAULT - VIN| TBD 10 TBD V VFAULTPUMP Fault Pin Charge Pump VBAT = VIN = 3V 6 V VMODEL Mode Pin Input Low Threshold VDC = 5V VDC/3 V VMODEH Mode Pin Input Low Threshold VDC = 5V 2 x V VDC/3 enFLASH Input Level Applied to TEMP Pin to Enter VDC = 5V 0.96VDC V Flash Mode disFLASH Input Level Applied to TEMP Pin to Exit VDC = 5V 0.94VDC V Flash Mode enFAULT Input Level Applied to TMAX Pin to VDC = 5V 0.94VDC V Enable Fault Protection disFAULT Input Level Applied to TMAX Pin to VDC = 5V 0.96VDC V Disable Fault Protection enTEMP Input Level Applied to TEMP Pin to VDC = 5V 0.06VDC V Enable Temperature Compensation disTEMP Input Level Applied to TEMP Pin to VDC = 5V 0.04VDC V Disable Temperature Compensation TTRIP Internal Temperature Protection 125 C Threshold VEN/PWML EN/PWM Pin Input Low Threshold 1.2 V VEN/PWMH EN/PWM Pin Input High Threshold 2.5 V .
TABLE 1. LIGHT OUTPUT CONTROL, VDC = 5.0V MODE TEMP OPERATING MODE
1 (VDC - 0.25V) > V > 0.25V
Standard Mode
light level to PWM modulation of EN/PWM input; LED bias current determined by LEVEL voltage, nominal 1V Don’t Care V > (VDC - 0.25V)
Flash Mode
, internal current limit set to 6A; duration of flash set by ENABLE/PWM input; TON max limited internally to 25ms, VFB = 0.4V, independent of VLEVEL Don’t Care V < 0.25V Disable temperature compensation 0 V < (VDC - 0.25V)
Fixed Bias Mode
VFB level internally set to 0.4V, independent of VLEVEL 3 FN7354.0 December 22, 2005