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MAX16839 Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX16839 Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 11 page High-Voltage, Linear High-Brightness LED Driver with Open-LED Fault Detect _______________________________________________________________________________________ 3 ELECTRICAL CHARACTERISTICS (continued) (VIN = 12V, VFLTS = 0V, RCS = 4.07I, VGND = 0V, DIM = unconnected, CIN = 0.1FF (Note 2), TJ = TA = -40NC to +125NC, unless otherwise noted. Typical values are at TA = +25NC.) (Note 3) Note 2: A 51I resistor is connected between SINK and a 6.5V supply to reduce power dissipation during the factory test. Note 3: All devices are 100% production tested at TA = +25NC. Limits over temperature are guaranteed by design. Note 4: Guaranteed by design and not production tested. Note 5: Internal switch resistance is measured with ISINK = 0.95 x ISINK0 (ISINK0 is ISINK at VSINK = 0.9V). Note 6: Supply turn-on delay will be measured by rising supply in 6Fs from GND to 12V, and measurement starts when VIN = 4V (typical UVLO). Note 7: DIM is kept high to avoid delay due to high capacitance from test setup. In applications, a 30FA pullup current charges parasitic capacitance at DIM with negligible delay. Ensure that unnecessary capacitance is not added at DIM during the PCB layout. PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS FAULT EVENT STATUS MEMORY FLTS Activation Threshold VINTH VIN rising, VCS = 0V 7 7.38 7.75 V FLTS Activation Hysteresis 20 mV LED Open Threshold VCSO 25 30 35 mV LED Open Blanking TB 14 25 50 F s Fault Voltage VFLTS VIN = 40V, VCS = 0V, CFLTS = 0.1FF 12 15 18 V FLTS Charge Current ICFLTS VCS P 25mV 0.65 2.8 4.8 mA FLTS Discharge Current VFLTS = 0.5V 2.25 5 7.25 F A FLTS Threshold To Turn Off LED Current Sink VFLTH 0.95 1.3 1.65 V DIM LOGIC Input High Voltage VIH 2.1 V Input Low Voltage VIL 0.8 V DIM Voltage Logic Hysteresis VDIM_HYS 0.15 V DIM Pullup Current VDIM = 0V 10 30 60 F A DIM Pulldown Current VDIM = 0.8V, VIN = 2.4V 0.385 1 1.5 mA DIM Pulse Width 70 F s DIM Frequency fDIM 10 kHz LEAKAGE CURRENTS SINK Leakage Current VSINK = 40V, VDIM = 0V 1 F A FLTS Leakage Current VFLTS = 8V, VIN = 0V 1 F A THERMAL SHUTDOWN Thermal Shutdown Temperature Temperature rising 160 N C Thermal Shutdown Hysteresis 15 N C |
Similar Part No. - MAX16839_11 |
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Similar Description - MAX16839_11 |
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