Datasheet LTC6992-1, LTC6992-2, LTC6992-3, LTC6992-4 (Analog Devices) - 9

FabricanteAnalog Devices
DescripciónTimerBlox: Voltage-Controlled Pulse Width Modulator (PWM)
Páginas / Página34 / 9 — TYPICAL PERFORMANCE CHARACTERISTICS. V+ = 3.3V, RSET = 200k, and TA = …
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TYPICAL PERFORMANCE CHARACTERISTICS. V+ = 3.3V, RSET = 200k, and TA = 25°C, unless. otherwise noted

TYPICAL PERFORMANCE CHARACTERISTICS V+ = 3.3V, RSET = 200k, and TA = 25°C, unless otherwise noted

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LTC6992-1/LTC6992-2/ LTC6992-3/LTC6992-4
TYPICAL PERFORMANCE CHARACTERISTICS V+ = 3.3V, RSET = 200k, and TA = 25°C, unless otherwise noted. NDIV > 1 Duty Cycle Error NDIV > 1 Duty Cycle Error NDIV = 1 Duty Cycle Clamps vs Temperature vs Temperature vs Temperature
5 5 97 DIVCODE = 0 4 GUARANTEED MAX 4 GUARANTEED MAX 96 3 PARTS V 95 3 VMOD/VSET = 0.5 (50%) MOD/VSET = 0.8 (87.5%) DIVCODE = 4 3 DIVCODE = 4 94 2 3 PARTS 2 3 PARTS LTC6992-2/LTC6992-3 93 VMOD = VSET 1 1 92 0 0 ERROR (%) –1 ERROR (%) –1 8 ERROR (%) 7 –2 –2 LTC6992-2/LTC6992-4 6 V –3 –3 MOD = GND 5 –4 GUARANTEED MIN –4 GUARANTEED MIN 4 –5 –5 3 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 6992 G22 6992 G23 6992 G24
NDIV > 1 Duty Cycle Clamps vs Temperature Duty Cycle Error vs DIVCODE Duty Cycle Error vs DIVCODE
97 5 5 DIVCODE = 4 V 96 VMOD/VSET = 0.2 (12.5%) MOD/VSET = 0.5 (50%) 3 PARTS 4 3 PARTS 4 3 PARTS 95 3 3 94 2 2 93 LTC6992-2/LTC6992-3 92 VMOD = VSET 1 1 0 0 8 ERROR (%) –1 ERROR (%) –1 DUTY CYCLE (%) 7 LTC6992-2/LTC6992-4 V –2 –2 6 MOD = GND –3 –3 5 4 –4 –4 3 –5 –5 –50 –25 0 25 50 75 100 125 0 2 4 6 8 10 12 14 0 2 4 6 8 10 12 14 TEMPERATURE (°C) DIVCODE DIVCODE 6992 G25 6992 G26 6992 G27
Duty Cycle Error vs DIVCODE NDIV = 1 Duty Cycle vs VMOD/ VSET NDIV > 1 Duty Cycle vs VMOD/ VSET
5 100 100 V DIVCODE = 0 DIVCODE = 4 MOD/VSET = 0.8 (87.5%) 4 3 PARTS 90 3 PARTS LTC6992-1/ 90 3 PARTS LTC6992-1/ LTC6992-4 LTC6992-4 3 80 80 LTC6992-2/ LTC6992-2/ 2 70 LTC6992-3 70 LTC6992-3 1 60 60 0 50 50 ERROR (%) –1 40 40 DUTY CYCLE (%) LTC6992-2/ DUTY CYCLE (%) LTC6992-2/ –2 30 LTC6992-4 30 LTC6992-4 –3 20 20 –4 10 10 LTC6992-1/LTC6992-3 LTC6992-1/LTC6992-3 –5 0 0 0 2 4 6 8 10 12 14 0 0.2 0.4 0.6 0.8 1 0 0.2 0.4 0.6 0.8 1 DIVCODE VMOD/VSET (V/V) VMOD/VSET (V/V) 6992 G28 6992 G29 6992 G30 Rev. D For more information www.analog.com 9 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