TLD55411QVXUMA1 Infineon

Infineon LITIX Power Flex H-Bridge DC/DC Controller with SPI Interface H-Bridge DC/DC Controller for High Power LED Lighting TLD5541-1QV Data Sheet Rev. 1.0, 2016-05-20 Automotive Power H-Bridge DC/DC Controller with SPI Interface TLD5541-1QV Table of Contents 1 Overview . 4 2 Block Diagram . 6 3 Pin Configuration 7 3.1 Pin Assignment . 7 3.2 Pin Definitions and Functions 8 4 General Product Characteristics . 11 4.1 Absolute Maximum Ratings 11 4.2 Functional Range 13 4.3 Thermal Resistance 13 5 Power Supply 15 5.1 Different Power States 17 5.2 Different Possibilities to RESET the device 18 5.3 Electrical Characteristics 19 6 Regulator Description . 21 6.1 Regulator Diagram Description 21 6.2 Adjustable Soft Start Ramp 23 6.3 Switching Frequency setup . 23 6.4 Operation of 4 switches H-Bridge architecture 23 6.4.1 Boost mode (V < V ) . 24 IN OUT 6.4.2 Buck mode (V > V ) 25 IN OUT 6.4.3 Buck-Boost mode (V ~ V ) 26 IN OUT 6.5 Fast Output Discharge Operation Mode - Multi Floating Switches Topology . 27 6.6 Flexible current sense 31 6.7 Programming Output Voltage (Constant Voltage Regulation) 32 6.8 Electrical Characteristics 33 7 Digital Dimming Function 36 7.1 Description . 36 7.2 Electrical Characteristics 38 8 Analog Dimming 39 8.1 Description . 39 8.2 LED current calibration procedure . 41 8.3 Electrical Characteristics 42 9 Linear Regulator 43 9.1 IVCC Description 43 9.2 Electrical Characteristics 44 10 Protection and Diagnostic Functions . 45 10.1 Description . 45 10.2 Overvoltage, Open Load, Short circuit protection 46 10.2.1 Short Circuit protection 46 10.2.2 Overvoltage Protection 48 10.2.3 Open Load Protection . 48 10.3 Input voltage monitoring, protection and power derating 49 10.4 Input current Monitoring . 50 10.5 Output current Monitoring . 50 10.6 Device Temperature Monitoring 52 Data Sheet 2 Rev. 1.0, 2016-05-20