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LT3596EUHG-TRPBF Datasheet(PDF) 3 Page - Linear Technology |
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LT3596EUHG-TRPBF Datasheet(HTML) 3 Page - Linear Technology |
3 / 20 page LT3596 3596f elecTrical characTerisTics The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 24V, BOOST = 30V, BIAS = 5V, EN/UVLO = 5V, PWM1-3 = 3.3V, CTRL1-3 = CTRLM = TSET = 2V, VOUT = 24V, SYNC = 0V unless otherwise specified. (Note 2) PARAMETER CONDITIONS MIN TYP MAX UNITS VIN Operating Voltage l 6 55 V Quiescent Current from VIN EN/UVLO = 0.4V BIAS = 5V, Not Switching BIAS = 0V, Not Switching 1.3 3 2 4 5 µA mA mA Minimum BIAS Voltage 3 3.1 V Quiescent Current from BIAS EN/UVLO = 0.4V BIAS = 5V, Not Switching BIAS = 0V, Not Switching, Current Out of Pin 1.4 70 2 3 150 µA mA µA EN Threshold 0.4 0.7 V UVLO Threshold (Falling) 1.47 1.51 1.53 V EN/UVLO Pin Current (Hysteresis) EN/UVLO = 1.6V EN/UVLO = 1.4V 4.25 10 5.1 5.75 nA µA FB Regulation Voltage 1.15 1.21 1.25 V FB Pin Bias Current FB = 6V 200 nA Maximum Duty Cycle RT = 220k (200kHz) RT = 33.2k (1MHz) 90 80 99 90 % % Switch Saturation Voltage ISW = 300mA 330 mV Switch Current Limit 0.8 1.0 1.25 A DA Pin Current to Stop OSC 500 650 750 mA Switch Leakage VSW = 0V 700 nA BOOST Pin Current ISW = 100mA 3 mA Switching Frequency RT = 220k RT = 33.2k 170 900 200 1000 230 1100 kHz kHz SYNC Input Low 0.4 V SYNC Input High 1.6 V SYNC Frequency Range RT = 220k RT = 47k 240 1000 kHz kHz SYNC Pin Bias Current VSYNC = 3.3V 200 nA Soft-Start Time (Note 4) 2.2 ms VREF Voltage IVREF = 0µA l 1.96 2.0 2.04 V Maximum VREF Current 200 µA ISET1-3 Pin Voltage RISET1-3 = 20k 1.0 V TSET Voltage for LED Current Derating 540 mV TSET Pin Leakage Current VTSET = 1V 200 nA ILED1-3 LED Current RISET1-3 = 20k l 98 97 100 100 102 103 mA mA LED String Current Matching RISET1-3 = 20k l ±0.35 ±0.35 ±1.5 ±2 % % LED Pin Voltage Adaptive VOUT Loop Enabled 1.07 V LED1-3 Open Detection Threshold 0.29 V LED1-3 Short Protection Threshold (from GND) 10 15 V LED1-3 Short Protection Threshold (from VOUT) VOUT = 6V, VOUT > VLED1-3 1 1.2 1.6 V LED1-3 Pin Leakage Current VLED1-3 = 42V, PWM1-3 = 0V 200 nA |
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