Datasheet LTC6992-1, LTC6992-2, LTC6992-3, LTC6992-4 (Analog Devices) - 7

LTC6992-1/LTC6992-2/ LTC6992-3/LTC6992-4
TYPICAL PERFORMANCE CHARACTERISTICS V+ = 3.3V, RSET = 200k, and TA = 25°C, unless otherwise noted. Frequency Error vs RSET Frequency Drift vs Supply Voltage Typical VSET Distribution
3 0.5 250 GUARANTEED MAX OVER TEMPERATURE 2 LOTS 0.4 DFN AND SOT-23 2 3 PARTS 0.3 200 1274 UNITS 0.2 1 R 0.1 SET = 50k 150 0 0 ERROR (%) DRIFT (%) –0.1 100 –1 –0.2 NUMBER OF UNITS RSET = 200k RSET = 800k –0.3 50 –2 –0.4 GUARANTEED MIN OVER TEMPERATURE REFERENCED TO V+ = 4.5V –3 –0.5 0 50 100 200 400 800 2 3 4 5 6 0.98 0.988 0.996 1.004 1.012 1.02 RSET (k) SUPPLY VOLTAGE (V) VSET (V) 6992 G04 6992 G05 6992 G06
VSET Drift vs ISET VSET Drift vs Supply VSET vs Temperature
1.0 1.0 1.020 3 PARTS 0.8 0.8 1.015 0.6 0.6 1.010 0.4 0.4 0.2 0.2 1.005 (mV) 0 0 (V) 1.000 V SET –0.2 V SET DRIFT (mV) –0.2 0.995 –0.4 –0.4 0.990 –0.6 –0.6 –0.8 –0.8 0.985 REFERENCED TO ISET = 10µA REFERENCED TO V+ = 4V –1.0 –1.0 0.980 0 5 10 15 20 2 3 4 5 6 –50 –25 0 25 50 75 100 125 ISET (µA) SUPPLY (V) TEMPERATURE (°C) 6992 G07 6992 G08 6992 G09
NDIV = 1 Duty Cycle Error vs RSET NDIV = 1 Duty Cycle Error vs RSET NDIV = 1 Duty Cycle Error vs RSET
5 5 5 VMOD/VSET = 0.2 (12.5%) VMOD/VSET = 0.5 (50%) VMOD/VSET = 0.8 (87.5%) 4 DIVCODE = 0 4 DIVCODE = 0 4 DIVCODE = 0 3 PARTS 3 PARTS 3 3 PARTS 3 3 2 2 2 1 1 1 0 0 0 ERROR (%) –1 ERROR (%) –1 ERROR (%) –1 –2 –2 –2 –3 –3 –3 –4 –4 –4 –5 –5 –5 50 100 200 400 800 50 100 200 400 800 50 100 200 400 800 RSET (k) RSET (k) RSET (k) 6992 G10 6992 G11 6992 G12 Rev. D For more information www.analog.com 7 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