LITIX Basic TLD1326EL 3 Channel High-Side Current Source Package PG-SSOP-14 Marking TLD1326 1 Overview Applications Exterior LED lighting applications such as tail/brake light, turn indicator, position light, side marker,... Interior LED lighting applications such as ambient lighting, interior illumination and dash board lighting. DC/DC Converter VBATT GND DC/DC controller EN Internal supply OUT3 Thermal Output protection control OUT2 IN SET Current adjustment OUT1 PWMI N-1 DC/DC control TLD1326EL Application Diagram with TLD1326EL Data Sheet Rev. 1.2 www.infineon.com 2018-04-26 R SET 10k CVS=4.7nF C N-1 VS C FB FB R FB GND LITIX Basic TLD1326EL Overview Basic Features 3 Channel device with integrated output stages (current sources), optimized to drive LEDs with output current up to 120 mA per channel Low current consumption in sleep mode PWM-operation supported via VS- and EN-pin Integrated PWM dimming engine to provide two LED brightness levels without external logic (e.g. C) Output current adjustable via external low power resistor and possibility to connect PTC resistor for LED protection during over temperature conditions Dynamic overhead control Reverse polarity protection and overload protection Undervoltage detection N-1 detection, latched function Wide temperature range: -40C < T < 150C j PG-SSOP-14 package with exposed heatslug Description The LITIX Basic TLD1326EL is a three channel high side driver IC with integrated output stages. It is designed to control LEDs with a current up to 120 mA. In typical automotive applications the device is capable to drive i.e. 3 red LEDs per chain (total 9 LEDs) with a current up to 60 mA, which is limited by thermal cooling aspects. The output current is controlled practically independent of load and supply voltage changes. Table1 Product Summary Parameter Symbol Value Operating voltage range V 5.5 V ... 40 V S(nom) Maximum voltage V 40 V S(max) V OUTx(max) Nominal output (load) current I 60 mA when using a supply voltage range of 8 V - 18 V (e.g. OUTx(nom) Automotive car battery). Currents up to I possible in OUT(max) applications with low thermal resistance R thJA Maximum output (load) current I 120 mA depending on thermal resistance R OUTx(max) thJA 750 7% Output current accuracy at R = 12 k k SET LT Current consumption in sleep mode I 0.1 A S(sleep,typ) Protective Functions ESD protection Under voltage lock out Over Load protection Over Temperature protection Reverse Polarity protection Diagnostic Functions N-1 detection, latched function SC to Vs (indicated by N-1 diagnosis) Data Sheet 2 Rev. 1.2 2018-04-26