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LT3475-1 Datasheet(PDF) 4 Page - Linear Technology |
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LT3475-1 Datasheet(HTML) 4 Page - Linear Technology |
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4 / 32 page  LT3760 4 3760fc elecTrical characTerisTics PARAMETER CONDITIONS MIN TYP MAX UNITS Voltage Gain (LED) 45 V/V VC Source Current (Out of Pin) VC = 1.5V, VLEDx = 0.8V, OVPSET = 1.5V 10 µA VC Sink Current (OVP) VC = 1.5V, VLEDx = 0.8V, OVPSET = 0V 15 µA VC Sink Current (LED) VC = 1.5V, VLEDx = 1.2V, OVPSET = 1.5V 9 µA VC Output High (clamp) (VCOH) 2.3 V VC Output Low (clamp) (VCOL) 0.8 V VC Switching Threshold (VCSW) 1.1 V SENSE AMP SENSE Input Current (Out of Pin) 65 µA SENSE Current Limit Threshold l 44 52 60 mV Current Mode Gain ∆V(VC)/∆V(SENSE) 6 V/V SENSE Over Current Limit Threshold l 90 100 110 mV LED CURRENT / CONTROL ISET Pin Voltage CTRL = 1.5V 1.00 V LEDx Current (40mA) (RISET = 14.7k) VLEDx = 1V, CTRL = 1.5V 38.3 40.1 41.9 mA LEDx Current Matching (40mA) (RISET = 14.7k) VLEDx = 1V, CTRL = 1.5V l ±0.7 ±2 % LEDx Current (100mA) (RISET = 5.76k) VLEDx = 1V, CTRL = 1.5V 95.5 100.7 105.9 mA LED Pin Regulation Voltage 1.1 V TSET Threshold 630 mV ANALOG DIMMING CTRL Input Current (Out of Pin) CTRL = 1V CTRL = 0.04V 40 50 200 200 nA nA LEDx Current (Dimming 25:1) VLEDx = 1V, CTRL = 0.04V 1.6 mA PWM DIMMING PWM Input Low Threshold 0.7 1 V PWM Input High Threshold 1.1 1.4 V PWM Input Current PWM = 1.5V PWM = 6V 6 24 µA µA VOUT Pin Current in PWM Mode V(VOUT) = 60V PWM = 1.5V, VLEDx = 1V PWM = 0V, VLEDx = 1V 370 20 µA µA LEDx Leakage Current (PWM = 0V) VLEDx = 1V, VOUT = 12V VLEDx = 50V, VOUT = 60V 0.1 0.1 1 2 µA µA FAULT DIAGNOSTICS FAULT Output Sink Current LED1 = Open, VFAULT = 0.3V 0.3 0.6 mA LEDx Short Threshold (VSH) (VOUT – VLEDx) VOUT = 12V VOUT = 60V 6 6 V LED Open Detection Threshold VOUT = 12V 0.5 V The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = VOUT = 6V, RISET = 14.7k unless otherwise noted. |
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Similar Description - LT3475-1 |
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