Infineon LITIX Power TLD5190-1QV Manual Download Page 6

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LED current dimming

The LED current can be dimmed analog or digital:

›

Analog: Open JP2 and force external reference voltage to TPSET

(optional: Close JP2 + change of resistor RSET1 and RSET2)

›

Digital: Apply a PWM signal (e.g. 200Hz 25%DC) to TPPWMI

Please refer to TLD5190-1QV DS for detailed information

2016-06-15

Summary of Contents for LITIX Power TLD5190-1QV

Page 1: ...LITIX Power TLD5190 1QV System Demoboard V1 LITIX_V1 15 06 2016 ATV BP LI www infineon com litix ...

Page 2: ...igh efficient H Bridge topology 1A LED driver in current control mode Supply voltage range 8V 40V Short circuit detection treshold 21 6V Output overvoltage protection threshold 55V 2 2016 06 15 Copyright Infineon Technologies AG 2016 All rights reserved ...

Page 3: ...ed Ccomp 10nF default setting 5 6 closed Ccomp 22nF 7 8 closed Ccomp not mounted Jumper J2 Set Pin configuration Closed Set pin connected to fixed voltage Open Output current can be set externally over TPSET 3 2016 06 15 Copyright Infineon Technologies AG 2016 All rights reserved ...

Page 4: ...ward voltage has to be within short circuit and output overvoltage protection values Select compensation network default 10nF J1 position 3 4 closed Close JP2 Connect TPEN low active and TPPWMI to digital supply e g 5V Switch ON supply 4 2016 06 15 Copyright Infineon Technologies AG 2016 All rights reserved ...

Page 6: ...2 and force external reference voltage to TPSET optional Close JP2 change of resistor RSET1 and RSET2 Digital Apply a PWM signal e g 200Hz 25 DC to TPPWMI Please refer to TLD5190 1QV DS for detailed information 6 2016 06 15 Copyright Infineon Technologies AG 2016 All rights reserved ...

Page 7: ...𝑅𝑉𝐹𝐵1 𝑅𝑉𝐹𝐵2 𝑅𝑉𝐹𝐵2 55V 𝑉𝑂𝑈𝑇_𝑆𝐶_𝑝𝑟𝑜𝑡𝑒𝑐𝑡𝑒𝑑 𝑉𝐹𝐵 𝑆𝐶𝑇𝐻 𝑅𝑉𝐹𝐵1 𝑅𝑉𝐹𝐵2 𝑅𝑉𝐹𝐵2 21 6V using the external circuitry of the IC The thresholds can be changed by adapting resistor RVFB1 and RVFB2 Please refer to the datasheet for detailed information of the component selection 7 2016 06 15 Copyright Infineon Technologies AG 2016 All rights reserved ...

Page 8: ...ic and layout designs are shown on the following two pages The visible content copper layers names can be activated or deactivated using the PDF reader layer settings 8 2016 06 15 Copyright Infineon Technologies AG 2016 All rights reserved ...

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