Datasheet LT3791-1 (Analog Devices) - 8

LT3791-1
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. V(BST1-SW1), V(BST2-SW2) UVLO BG1, BG2 Driver On-Resistance TG1, TG2 Driver On-Resistance vs Temperature vs Temperature vs Temperature
3.9 4.5 4.0 3.8 4.0 3.5 (V) RISING PULL-UP 3.7 3.5 3.0 PULL-UP 3.0 3.6 2.5 (BST2,SW2) 2.5 PULL-DOWN , V 3.5 2.0 2.0 3.4 PULL-DOWN 1.5 FALLING 1.5 V (BST1-SW1) 3.3 BG1, BG2 RESISTANCE (Ω) 1.0 TG1, TG2 RESISTANCE (Ω) 1.0 3.2 0.5 0.5 3.1 0 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 37911 G28 37911 G29 37911 G30
PWMOUT On-Resistance V(SNSP-SNSN) Buck Threshold vs Temperature VC Voltage vs Duty Cycle vs VC
14 1.6 60 V(SNSP-SNSN) = 0V 12 1.4 40 BG2 1.2 10 PULL-UP 20 1.0 (mV) 8 BG1 (V) 0.8 0 6 PULL-DOWN V C 0.6 –20 4 V (SNSP-SNSN) PWMOUT RESISTANCE (Ω) 0.4 2 –40 0.2 0 0 –60 –50 –25 0 25 50 75 100 125 150 0 20 40 60 80 100 0.6 0.8 1.0 1.2 1.4 1.6 1.8 TEMPERATURE (°C) DUTY CYCLE (%) VC (V) 37911 G31 37911 G32 37911 G33
V(SNSP-SNSN) Buck Threshold V(SNSP-SNSN) Boost Threshold V(SNSP-SNSN) Boost Threshold vs Temperature vs VC vs Temperature
60 60 60 VC(MIN) VC(MAX) 40 40 40 20 20 20 (mV) 0 0 0 THRESHOLD (mV) THRESHOLD (mV) –20 –20 –20 V (SNSP-SNSN) –40 –40 V (SNSP-SNSN) –40 VC(MAX) V (SNSP-SNSN) –60 –60 VC(MIN) –60 –80 –80 –50 –25 0 25 50 75 100 125 150 0.6 0.8 1.0 1.2 1.4 1.6 1.8 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) VC (V) TEMPERATURE (°C) 37911 G34 37911 G35 37911 G36 37911fb 8 For more information www.linear.com/LT3791-1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Typical Application Related Parts