Datasheet LTC6992-1, LTC6992-2, LTC6992-3, LTC6992-4 (Analog Devices) - 5

LTC6992-1/LTC6992-2/ LTC6992-3/LTC6992-4
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. Test conditions are V+ = 2.25V to 5.5V, VMOD = 0V to VSET, DIVCODE = 0 to 15 (NDIV = 1 to 16,384), RSET = 50k to 800k, RLOAD = 5k, CLOAD = 5pF unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Analog Inputs
VSET Voltage at SET Pin l 0.97 1.00 1.03 V ∆VSET/∆T VSET Drift Over Temperature l ±75 µV/°C RSET Frequency-Setting Resistor l 50 800 kΩ MOD Pin Input Capacitance 2.5 pF MOD Pin Input Current l ±10 nA VMOD,HI VMOD Voltage for Maximum LTC6992-1/LTC6992-4, POL = 0, D = 100% l 0.90•VSET 0.936•VSET V Duty Cycle LTC6992-2/LTC6992-3, POL = 0, D = 95% 0.86•VSET V VMOD,LO VMOD Voltage for Minimum LTC6992-1/LTC6992-3, POL = 0, D = 0% l 0.064•VSET 0.10•VSET V Duty Cycle LTC6992-2/LTC6992-4, POL = 0, D = 5% 0.14•VSET V VDIV DIV Pin Voltage l 0 V+ V ∆VDIV/∆V+ DIV Pin Valid Code Range (Note 5) Deviation from Ideal l ±1.5 % VDIV/V+ = (DIVCODE + 0.5)/16 DIV Pin Input Current l ±10nA
Digital Output
IOUT(MAX) Output Current V+ = 2.7V to 5.5V ±20 mA VOH High Level Output Voltage (Note 7) V+ = 5.5V IOUT = –1mA l 5.45 5.48 V IOUT = –16mA l 4.84 5.15 V V+ = 3.3V IOUT = –1mA l 3.24 3.27 V IOUT = –10mA l 2.75 2.99 V V+ = 2.25V IOUT = –1mA l 2.17 2.21 V IOUT = -8mA l 1.58 1.88 V VOL Low Level Output Voltage (Note 7) V+ = 5.5V IOUT = 1mA l 0.02 0.04 V IOUT = 16mA l 0.26 0.54 V V+ = 3.3V IOUT = 1mA l 0.03 0.05 V IOUT = 10mA l 0.22 0.46 V V+ = 2.25V IOUT = 1mA l 0.03 0.07 V IOUT = 8mA l 0.26 0.54 V tr Output Rise Time (Note 8) V+ = 5.5V, RLOAD = ∞ 1.1 ns V+ = 3.3V, RLOAD = ∞ 1.7 ns V+ = 2.25V, RLOAD = ∞ 2.7 ns tf Output Fall Time (Note 8) V+ = 5.5V, RLOAD = ∞ 1.0 ns V+ = 3.3V, RLOAD = ∞ 1.6 ns V+ = 2.25V, RLOAD = ∞ 2.4 ns Rev. D For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts