TLD5097EL

LITIX™ Power TLD5097EL - Multitopology LITIX™ Power DC/DC Controller IC 1 Overview Description The TLD5097EL is a flexibly usable DC/DC boost controller with built in diagnosis and protection features especially designed to drive LEDs. It is designed to support fixed current and fixed voltage configurations in multiple topologies such as Boost, Buck, Buck-Boost, SEPIC and Flyback by simply adjusting the external components. The TLD5097EL drives a low side n-channel power MOSFET from an internal 5 V linear regulator. The switching frequency is adjustable in the range of 100 kHz to 500 kHz and can also be synchronized to an external clock source. The TLD5097EL can be flexibly dimmed by means of analog and PWM dimming; an enable function reduces the shut-down current consumption to IQ_OFF < 10 µA. The current mode control scheme of this device provides a stable regulation loop maintained by small external compensation components. Additionally an integrated soft start feature limits the current peak as well as voltage overshoot at start-up. This IC is suited for use in the harsh automotive environments. LBO DBO VIN VIN = 4.5V to 45V CIN CBO ILED TSW 14 VCC or VIVCC IN SWO 2 SWCS 4 RFB VCC or VIVCC VREF RCS RA SGND 3 OVFB 9 ROVH 10 RB IC2 Microcontroller (e.g. XC866) Diagnosis SET 5 ST PWMI Digital Dimming Clock / Spread Spectrum EN / PWMI 11 FREQ / SYNC 8 COMP D2 ROVL D3 FBH 13 D1 IC1 TLD5097 IVCC D4 6 D5 1 CIVCC RPOL DPOL D6 D7 CCOMP FBL 7 D8 D9 RFREQ RCOMP GND D10 12 LED load seperated via wire harness Figure 1 Typical application: Boost LED driver Type Package Marking TLD5097EL PG-SSOP-14-3 TLD5097 Datasheet www.infineon.com 1 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Potential applications Potential applications • Automotive exterior and interior lighting • General illumination • General purpose current/voltage controlled DC/DC driver Features • Fixed current or fixed voltage configuration in Boost, Buck, Buck-Boost, SEPIC and Flyback Topology • Drives low side external n-channel switching MOSFET from internal 5 V voltage regulator • Flexible switching frequency range from 100 kHz to 500 kHz, synchronization with external clock source • Wide input voltage range from 4.5 V to 45 V • Enable & PWM function with very low shutdown current: IQ_OFF < 10 µA • Analog dimming and PWM dimming feature to adjust average LED current • Low active status output for fault communication • Integrated protection and diagnostic functions • Internal soft start • 300 mV high-side current sense • Available in a small thermally enhanced 14-pin PG-SSOP-14-3 package, green product (RoHS) compliant Table 1 Product summary Feature Symbol Range Nominal supply voltage range VIN 8 V ... 34 V Extended supply voltage range VIN 4.5 V ... 45 V VIVCC > VIVCC,RTH,d ; parameter deviations possible Switching frequency range fFREQ 100 kHz ... 500 kHz oscillator frequency adjustment range 250 kHz ... 500 kHz synchronization frequency capture range Maximum duty cycle Dmax,fixed 91% ...95% fixed frequency mode Dmax,synced 88% synchronization mode Typical gate driver peak sourcing current ISWO,SRC 380 mA Typical gate driver peak sinking current ISWO,SNK 550 mA Protection and diagnostic functions • Open circuit detection • Output overvoltage protection • Overtemperature shutdown • Electrostatic discharge (ESD) protection Product validation Qualified for automotive applications. Product validation according to AEC-Q100/101. Datasheet 2 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Table of contents Table of contents 1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Potential applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Protection and diagnostic functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Product validation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 3.1 3.2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin definitions and functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 4.1 4.2 4.3 General product characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Functional range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Thermal resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5.1 5.2 Switching regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6 6.1 6.2 6.3 Oscillator and synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Typical performance characteristics of oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 7.1 7.2 Enable and dimming function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 8 8.1 8.2 Linear regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 9 9.1 9.2 Protection and diagnostic functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 10 10.1 10.2 10.3 Analog dimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Purpose of analog dimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 11.1 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Further Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 12 Package outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 13 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Datasheet 3 7 7 9 9 13 13 14 15 26 26 26 30 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Block diagram 2 Block diagram IN LDO 14 13 IVCC 2 SWO 4 SWCS 3 SGND 9 OVFB 6 FBH 7 FBL Power on reset Internal supply EN / PWMI 1 EN_INT/ PWM_INT On/Off logic Power switch gate driver Soft Start Oscillator FREQ/SYNC 11 PWM Generator Slope Comp. Thermal protection ST 5 Switch current error amplifier Leading edge blanking Overvoltage protection Diagnostic logic Open load SET COMP 10 Reference current generator Feedback voltage error amplifier 8 12 GND Figure 2 Datasheet Block diagram TLD5097EL 4 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Pin configuration 3 Pin configuration 3.1 Pin assignment IVCC 1 14 IN SWO 2 13 EN/PWMI SGND 3 12 GND SWCS 4 11 FREQ/SYNC ST 5 10 SET FBH 6 FBL 7 EP Figure 3 Pin configuration TLD5097EL 3.2 Pin definitions and functions Table 2 Pin definition and function 9 OVFB 8 COMP # Symbol Direction Function 1 IVCC Output Internal LDO Used for internal biasing and gate drive. Bypass with external capacitor. Pin must not be left open 2 SWO Output Switch gate driver Connect to gate of external switching MOSFET 3 SGND – Current Sense Ground Ground return for switch current sense 4 SWCS Input Current Sense Detects the peak current through switch 5 ST Output Status to indicate fault conditions 6 FBH Input Voltage Feedback Positive Non inverting Input (+) 7 FBL Input Voltage Feedback Negative Inverting Input (-) 8 COMP Input Compensation Connect R and C network to pin for stability Datasheet 5 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Pin configuration Table 2 Pin definition and function # Symbol Direction Function 9 OVFB Input Overvoltage Protection Feedback Connect to resistive voltage divider to set overvoltage threshold 10 SET Input Analog dimming Load current adjustment Pin. Pin must not be left open. If analog dimming feature is not used connect to IVCC pin 11 FREQ / SYNC Input Frequency Select or Synchronization Connect external resistor to GND to set frequency. Or apply external clock signal for synchronization within frequency capture range 12 GND – Ground Connect to system ground 13 EN / PWMI Input Enable or PWM Apply logic HIGH signal to enable device or PWM signal for dimming LED 14 IN Input Supply Input Supply for internal biasing EP – Exposed Pad Connect to external heat spreading GND Cu area (e.g. inner GND layer of multilayer PCB with thermal vias) Datasheet 6 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL General product characteristics 4 General product characteristics 4.1 Absolute maximum ratings TJ = -40°C to +150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) Table 3 Absolute maximum ratings1) Parameter Symbol Values Min. Typ. Max. Unit Note or Test Condition Number Voltage IN Supply input VIN -0.3 – 45 V – P_4.1.1 EN / PWMI Enable or PWM Input VEN -40 – 45 V – P_4.1.2 FBH-FBL; Feedback error amplifier differential VFBH- VFBL -40 – 61 V The maximum delta P_4.1.3 must not exceed 61 V Differential signal (not referred to GND) FBH; Feedback error amplifier positive input VFBH -40 – 61 V The difference P_4.1.4 between VFBH and VFBL must not exceed 61 V, refer to P_4.1.3 FBL Feedback error amplifier negative input VFBL -40 – 61 V The difference P_4.1.5 between VFBH and VFBL must not exceed 61 V, refer to P_4.1.3 FBH and FBL current IFBH, IFBL mA t < 100 ms; VFBH - VFBL = 0.3 V P_4.1.6 OVFB Overvoltage feedback input VOVP -0.3 – 5.5 V – P_4.1.7 OVFB Overvoltage feedback input VOVP -0.3 – 6.2 V t < 10 s P_4.1.8 SWCS VSWCS Switch current sense input -0.3 – 5.5 V – P_4.1.9 SWCS VSWCS Switch current sense input -0.3 – 6.2 V t < 10 s P_4.1.10 SWO Switch gate drive output -0.3 – 5.5 V – P_4.1.11 Datasheet VSWO 1 7 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL General product characteristics Table 3 Absolute maximum ratings1) Parameter Symbol Values Unit Note or Test Condition Number Min. Typ. Max. VSWO -0.3 – 6.2 V t < 10 s P_4.1.12 SGND VSGND Current sense switch GND -0.3 – 0.3 V – P_4.1.13 COMP Compensation input VCOMP -0.3 – 5.5 V – P_4.1.14 COMP Compensation input VCOMP -0.3 – 6.2 V t < 10 s P_4.1.15 FREQ / SYNC; Frequency VFREQ/SYNC and synchronization input -0.3 – 5.5 V – P_4.1.16 FREQ / SYNC; Frequency VFREQ/SYNC and synchronization input -0.3 – 6.2 V t < 10 s P_4.1.17 ST Status output VST -0.3 – 5.5 V – P_4.1.20 ST Status output VST -0.3 – 6.2 V t < 10 s P_4.1.21 ST Status output IST -2 – 2 mA – P_4.1.22 SET Analog dimming input VSET -0.3 – 45 V – P_4.1.23 IVCC Internal linear voltage regulator output VIVCC -0.3 – 5.5 V – P_4.1.24 IVCC Internal linear voltage regulator output VIVCC -0.3 – 6.2 V t < 10 s P_4.1.25 Junction temperature TJ -40 – 150 °C – P_4.1.26 Storage temperature Tstg -55 – 150 °C – P_4.1.27 ESD resistivity of all pins VESD,HBM -2 – 2 kV HBM2) P_4.1.28 ESD resistivity of IN, EN/PWMI, FBH, FBL and SET pin to GND VESD,HBM -4 – 4 kV HBM2) P_4.1.29 SWO Switch gate drive output Temperature ESD Susceptibility 1) Not subject to production test, specified by design 2) ESD susceptibility, Human Body Model “HBM” according to ANSI/ESDA/JEDEC JS-001 (1.5 kΩ, 100pF) Note: 1. Stresses above the ones listed here may cause permanent damage to the device. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Datasheet 8 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL General product characteristics 2. Integrated protection functions are designed to prevent IC destruction under fault conditions described in the data sheet. Fault conditions are considered as “outside” normal operating range. Protection functions are not designed for continuous repetitive operation. 4.2 Functional range Table 4 Functional range Parameter Symbol Values Min. Typ. Max. Unit Note or Test Condition Number Extended supply voltage range VIN 4.5 – 45 V 1) Nominal supply voltage range VIN 8 – 34 V – P_4.2.2 Feedback voltage input VFBH, VFBL 3 – 60 V – P_4.2.3 Junction temperature TJ -40 – 150 °C – P_4.2.4 VIVCC > VIVCCT,RTH,d; P_4.2.1 parameter deviations possible 1) Not subject to production test, specified by design Note: Within the functional range the IC operates as described in the circuit description. The electrical characteristics are specified within the conditions given in the related electrical characteristics table. 4.3 Thermal resistance Note: This thermal data was generated in accordance with JEDEC JESD51 standards. For further information visit https://www.jedec.org Table 5 Thermal resistance Parameter Symbol Values Unit Note or Test Condition Number P_4.3.1 Min. Typ. Max. RthJC – 10 – K/W 1)2) Junction to Ambient RthJA – 47 – K/W 1)3) 2 1s0p + 600mm P_4.3.3 1s0p + 300mm2 P_4.3.4 Junction to Case Junction to Ambient RthJA – 54 – K/W 1)3) Junction to Ambient RthJA – 64 – K/W 1)3) 2s2p P_4.3.2 1) Not subject to production test, specified by design 2) Specified RthJC value is simulated at natural convection on a cold plate setup (all pins and the exposed pad are fixed to ambient temperature). TA = 25°C dissipates 1 W 3) Specified RthJA value is according to JEDEC 2s2p (JESD 51-7) + (JESD 51-5) and JEDEC 1s0p (JESD 51-3) + heatsink area at natural convection on FR4 board;The device was simulated on a 76.2 x 114.3 x 1.5 mm board. The 2s2p board has 2 outer copper layers (2 x 70 µm Cu) and 2 inner copper layers (2 x 35 µm Cu), A thermal via (diameter = 0.3 mm and 25 µm plating) array was applied under the exposed pad and connected the first outer layer (top) to the first inner layer and second outer layer (bottom) of the JEDEC PCB. TA=25°C, IC dissipates 1 W Datasheet 9 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Switching regulator 5 Switching regulator 5.1 Description The TLD5097EL regulator is suitable for Boost, Buck, Buck-Boost, SEPIC and Flyback configurations. The constant output current is especially useful for light emitting diode (LED) applications. The switching regulator function is implemented by a pulse width modulated (PWM) current mode controller. The PWM current mode controller uses the peak current through the external power switch and error in the output current to determine the appropriate pulse width duty cycle (on time) for constant output current. The current mode controller provides a PWM signal to an internal gate driver which then outputs to an external n-channel enhancement mode metal oxide field effect transistor (MOSFET) power switch. The current mode controller also has built-in slope compensation to prevent sub-harmonic oscillations which is a characteristic of current mode controllers operating at high duty cycles (>50% duty). An additional built-in feature is an integrated soft start that limits the current through the inductor and external power switch during initialization. The soft start function gradually increases the inductor and switch current over tSS (P_5.2.9) to minimize potential overvoltage at the output. OV FB OVFB 9 H when OVFB >1.25V Vref =1.25V FBH 6 FBL 7 SET UV IVCC High when IVCC < 4.0V COMP 8 x1 EA Current Comp gmEA High when lEA - ISLOPE - ICS > 0 OFF when H IEA 0 if SET < 1.6V 0 10 Low when Tj > 175 °C 1 − 0.1 5 Vref =0.3V Soft start Vref =4.0V NOR R & > 1 Output Stage OFF when Low Gate Driver Supply R Oscillator FREQ/ SYNC 11 Figure 4 Datasheet I Slope Comp S t Clock & Error-FF Q Q & Q 2 SWO Current Sense PWM-FF Q 1 IVCC Gate Driver S ISLOPE & INV 1 NAND 2 & ICS 4 SWCS 3 SGND Switching regulator block diagram 10 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Switching regulator 5.2 Electrical characteristics VIN = 8 V to 34 V; TJ = -40°C to +150°C, all voltages with respect to ground, positive current flowing into pin; (unless otherwise specified) Table 6 Electrical characteristics: Switching regulator Parameter Symbol Values Min. Typ. Max. Unit Note or Test Condition Number Regulator Feedback reference voltage VREF 0.29 0.30 0.31 V refer to Figure 29 VREF = VFBH - VFBL VSET = 5 V ILED =350 mA P_5.2.1 Feedback reference voltage VREF 0.057 0.06 0.063 V refer to Figure 29 VREF= VFBH - VFBL VSET= 0.4 V ILED=70 mA P_5.2.2 Feedback reference voltage offset VREF_offset – – 5 mV refer to Figure 17 and Figure 29 VREF= VFBH - VFBL VSET= 0.1 V VOUT > VIN P_5.2.3 Voltage line regulation – (∆VREF / VREF) / ∆VIN – 0.15 %/V refer to Figure 29 VIN = 8 V to 19 V; VSET = 5 V; ILED = 350 mA P_5.2.4 – Voltage load regulation (∆VREF / VREF) / ∆IBO – 5 %/A refer to Figure 29 VSET = 5 V; ILED = 100 to 500 mA P_5.2.5 Switch peak overcurrent threshold VSWCS 130 150 170 mV VFBH= VFBL = 5 V VCOMP = 3.5 V P_5.2.6 Maximum duty cycle DMAX,fixed 91 93 95 % Fixed frequency mode P_5.2.7 Maximum duty cycle DMAX,sync 88 – – % Synchronization mode P_5.2.8 Soft start ramp tSS 350 1000 1500 µs VFB rising from 5% P_5.2.9 to 95% of VFB , typ. IFBH Feedback high input current IFBH 38 46 54 µA VFBH - VFBL = 0.3 V P_5.2.10 IFBL Feedback low input current IFBL 15 21 27 µA VFBH - VFBL = 0.3 V P_5.2.11 Switch current sense input current ISWCS 10 50 100 µA VSWCS = 150 mV P_5.2.12 Datasheet 11 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Switching regulator Table 6 Electrical characteristics: Switching regulator Parameter Symbol Values Min. Typ. Max. Unit Note or Test Condition Number Input undervoltage shutdown VIN,off 3.5 – 4.5 V VIN decreasing P_5.2.13 Input voltage startup VIN,on – – 4.85 V VIN increasing P_5.2.14 ISWO,SRC – 380 – mA 1) VSWO = 1 V to 4 V P_5.2.15 Gate driver peak sinking ISWO,SNK current – 550 – mA 1) VSWO = 4 V to 1 V P_5.2.16 Gate driver output rise time tR,SWO – 30 60 ns 1) CL,SWO = 3.3 nF; VSWO = 1 V to 4 V P_5.2.17 Gate driver output fall time tF,SWO – 20 40 ns 1) CL,SWO = 3.3 nF; VSWO = 4 V to 1 V P_5.2.18 Gate driver output voltage VSWO 4.5 – 5.5 V 1) P_5.2.19 Gate driver for external switch Gate driver peak sourcing current CL,SWO = 3.3 nF 1) Not subject to production test, specified by design Datasheet 12 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Oscillator and synchronization 6 Oscillator and synchronization 6.1 Description Rfreq vs. switching frequency The internal oscillator is used to determine the switching frequency of the boost regulator. The switching frequency can be selected from 100 kHz to 500 kHz with an external resistor to GND. To set the switching frequency with an external resistor the following formula can be applied. (6.1) 1 R FREQ = (141 ⋅ 10 − 12 ⎡ s ⎢⎣ Ω ⎤ ⎛ ⎡1 ⎤ ⎞ ⎥⎦ ) ⋅ ⎜ f FREQ ⎢⎣ s ⎥⎦ ⎟ ⎝ ⎠ ( − 3 . 5 ⋅ 10 3 [Ω ])[Ω ] In addition, the oscillator is capable of changing from the frequency set by the external resistor to a synchronized frequency from an external clock source. If an external clock source is provided on the pin FREQ/SYNC, then the internal oscillator synchronizes to this external clock frequency and the boost regulator switches at the synchronized frequency. The synchronization frequency capture range is 250 kHz to 500 kHz. TLD5097 FREQ / SYNC Oscillator Multiplexer Clock Frequency Detector VCLK PWM Logic Gate Driver SWO RFREQ Figure 5 Oscillator and synchronization block diagram and simplified application circuit TSYNC = 1 / fSYNC VSYNC tSYNC,PWH VSYNC,H VSYNC,L t Figure 6 Datasheet Synchronization timing diagram 13 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Oscillator and synchronization 6.2 Electrical characteristics VIN = 8 V to 34 V; TJ = -40°C to +150°C, all voltages with respect to ground, positive current flowing into pin; (unless otherwise specified) Table 7 Electrical characteristics: Oscillator and synchronization Parameter Symbol Values Min. Typ. Max. Unit Note or Number Test Condition Oscillator Oscillator frequency fFREQ 250 300 350 kHz RFREQ = 20 kΩ P_6.2.1 Oscillator frequency adjustment range fFREQ 100 – 500 kHz – P_6.2.2 FREQ / SYNC supply current IFREQ – – -700 µA VFREQ = 0 V P_6.2.3 Frequency voltage VFREQ 1.16 1.24 1.32 V fFREQ = 100 kHz P_6.2.4 Synchronization fSYNC frequency capture range 250 – 500 kHz – P_6.2.5 Synchronization signal high logic level valid VSYNC,H 3.0 – – V 1)2) P_6.2.6 Synchronization signal low logic level valid VSYNC,L – – 0.8 V 1)2) P_6.2.7 Synchronization signal logic high pulse width tSYNC,PWH 200 – – ns 1)2) P_6.2.8 Synchronization 1) Synchronization of external PWM ON signal to falling edge 2) Not subject to production test, specified by design Datasheet 14 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Oscillator and synchronization 6.3 Typical performance characteristics of oscillator 600 500 fFREQ [kHz] 400 TJ = 25°C 300 200 100 0 0 10 20 30 40 50 60 70 80 RFREQ[kΩ ] Figure 7 Datasheet Switching frequency fSW versus frequency select resistor to GND RFREQ 15 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Enable and dimming function 7 Enable and dimming function 7.1 Description The enable function powers the device on or off. A valid logic “low”signal on enable pin EN/PWMI powers “off” the device and current consumption is less than IQ_OFF (P_7.1.8). A valid logic “high” enable signal on enable pin EN/PWMI powers on the device. The enable function features an integrated pull down resistor which ensures that the IC is shut down and the power switch is off in case the enable pin EN is left open. In addition to the enable function described above, the EN/PWMI pin detects a pulse width modulated (PWM) input signal that is fed through to the internal gate driver. The EN/PWMI enables and disables the gate driver for the main switch during PWM operation. PWM dimming an LED is a commonly practiced dimming method and can prevent color shift in an LED light source. The enable and PWM input function share the same pin. Therefore a valid logic “low” signal at the EN/PWMI pin needs to differentiate between an enable power “off” or a PWM dimming “low” signal. The device differentiates between enable off and PWM dimming signal by requiring the enable off at the EN/PWMI pin to stay “low” for the “Enable turn off delay time” (tEN,OFF,DEL P_7.1.6). LBO DBO CBO IN 14 Enable Microcontroller EN / PWMI RFB 13 Enable / PWMI Logic LDO Enable 1 Gate driver 2 IVCC SWO TSW RSWCS Figure 8 Datasheet Block diagram and simplified application circuit enable and LED dimming 16 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Enable and dimming function tEN,START TPWMI tPWMI,H tEN,OFF,DEL VEN/PWMI VEN/PWMI,ON VEN/PWMI,OFF t VIVCC VIVCC,ON VIVCC,RTH t VST TFREQ = VSWO t 1 fFREQ t Power On Normal Dim Normal Dim Normal SWO On ST Off SWO On ST Off SWO On ST On SWO Off ST On SWO Off ST On Figure 9 Timing diagram enable and LED dimming Note: The ST signal is “low” during soft-start. Datasheet 17 Power Off Delay Time Power Off IQ_OFF < 10 μA Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Enable and dimming function 7.2 Electrical characteristics VIN = 8 V to 34 V; TJ = -40°C to +150°C, all voltages with respect to ground, positive current flowing into pin; (unless otherwise specified) Table 8 Electrical characteristics: Enable and dimming Parameter Symbol Values Min. Typ. Unit Note or Test Condition Number V – P_7.1.1 Max. Enable / PWM Input Enable/PWMI turn on threshold VEN/PWMI,ON 3.0 – Enable/PWMI turn off threshold VEN/PWMI,OFF – – 0.8 V – P_7.1.2 Enable/PWMI hysteresis VEN/PWMI,HYS 50 200 400 mV 1) P_7.1.3 Enable/PWMI high input current IEN/PWMI,H – – 30 µA VEN/PWMI = 16.0 V P_7.1.4 Enable/PWMI low input current IEN/PWMI,L – 0.1 1 µA VEN/PWMI = 0.5 V P_7.1.5 Enable turn off delay time tEN,OFF,DEL 8 10 12 ms – P_7.1.6 100 – – µs 1) P_7.1.7 P_7.1.8 Enable startup time tEN,START Current consumption Current consumption, shutdown mode IQ_OFF – – 10 µA VEN/PWMI = 0.8 V; TJ ≤ 105°C; VIN = 16V Current consumption, active mode IQ_ON – – 7 mA 2) VEN/PWMI ≥ 4.75 V; P_7.1.9 IBO = 0 mA; VSWO = 0% duty cycle 1) Not subject to production test, specified by design 2) Dependency on switching frequency and gate charge of external switches Datasheet 18 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Linear regulator 8 Linear regulator 8.1 Description The internal linear voltage regulator supplies the internal gate drivers with a typical voltage of 5 V and current up to ILIM,min (P_8.1.2). An external output capacitor with ESR lower than RIVCC,ESR (P_8.1.5) is required on pin IVCC for stability and buffering transient load currents. During normal operation the external MOSFET switches will draw transient currents from the linear regulator and its output capacitor. Proper sizing of the output capacitor must be considered to supply sufficient peak current to the gate of the external MOSFET switches. Integrated undervoltage protection for the external switching MOSFET An integrated undervoltage reset threshold circuit monitors the linear regulator output voltage (VIVCC) and resets the device in case the output voltage falls below the IVCC undervoltage reset switch OFF threshold (VIVCC,RTH,d). The undervoltage reset threshold for the IVCC pin helps to protect the external switches from excessive power dissipation by ensuring the gate drive voltage is sufficient to enhance the gate of an external logic level n-channel MOSFET. IN 14 1 IVCC Linear Regulator EN / PWMI Figure 10 Datasheet 13 Gate Drivers Voltage regulator block diagram and simplified application circuit 19 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Linear regulator 8.2 Electrical characteristics VIN = 8 V to 34 V, TJ = -40°C to +150°C, all voltages with respect to ground, positive current flowing into pin; (unless otherwise specified) Table 9 Electrical characteristics: Line regulator Parameter Symbol Values Min. Typ. Max. Unit Note or Test Condition Number Output voltage VIVCC 4.85 5 5.15 V 6 V ≤ VIN≤ 45 V P_8.1.1 0.1 mA ≤ IIVCC ≤ 40 mA Output current limitation ILIM 51 – 90 mA VIN = 13.5 V VIVCC = 4.5 V Current flows out of pin P_8.1.2 Drop out voltage VDR – 0.5 V VIN = 4.5 V IIVCC = 25 mA P_8.1.3 IVCC buffer capacitor CIVCC 0.47 1 100 µF 1)2) P_8.1.4 IVCC buffer capacitor ESR RIVCC, ESR – – 0.5 Ω 1) P_8.1.5 Undervoltage reset headroom VIVCC,HDRM 100 – – mV VIVCC decreasing VIVCC - VIVCC,RTH,d P_8.1.6 IVCC undervoltage reset switch-off threshold VIVCC,RTH,d 3.6 – 4.0 V 3) P_8.1.7 IVCC undervoltage reset switch-on threshold VIVCC,RTH,i – – 4.5 V VIVCC increasing VIVCC decreasing P_8.1.8 1) Not subject to production test, specified by design 2) Minimum value given is needed for regulator stability; application might need higher capacitance than the minimum. 3) Selection of external switching MOSFET is crucial and the VIVCC,RTH,d min. as worst case the threshold voltage of the. MOSFET must be considered. Datasheet 20 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Protection and diagnostic functions 9 Protection and diagnostic functions 9.1 Description The TLD5097EL has integrated circuits to diagnose and protect against output overvoltage, open load, open feedback and overtemperature faults. In case of a fault condition, the SWO signal stops operation. The ST signal will change to an active logic “low” signal to communicate that a fault has occurred (detailed overview in Figure 11 and Table 10 below). Figure 12 illustrates the various open load and open feedback conditions. In case of an overtemperature condition the integrated thermal shutdown function turns off the gate driver and internal linear voltage regulator. The typical junction shutdown temperature is 175°C (TJ,SD P_9.2.3). After cooling down the IC will automatically restart. Thermal shutdown is an integrated protection function designed to prevent IC destruction and is not intended for continuous use in normal operation (Figure 14). To calculate the proper overvoltage protection resistor values an example is given in Figure 15. Input Protection and diagnostic circuit Output Output overvoltage Open load OR Open feedback SWO gate driver off ST pin low Overtemperature OR Linear regulator off Input undervoltage Figure 11 Datasheet Protection and diagnostic function block diagram 21 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Protection and diagnostic functions Table 10 Diagnosis truth table1) Input Output Condition Level ST SWO IVCC High or Sw Sw Active True Low Low Active False High or Sw Sw Active True Low Low Active False High or Sw Sw Active True Low Low Active False High or Sw Sw Active True Low Low Shutdown High or Sw Sw Active Low Low Shutdown Overvoltage at output False Open load Open feedback Overtemperature Undervoltage at input False True 1) Sw = Switching; False = Condition does NOT exist; True = Condition does exist VBO Open Circuit 3 TLD5097 Open Circuit 1 ROVH Fault threshold voltage VREF 1 Open FBH -20 to -100 mV 2 Open FBL 0.5 to 1.0 V 3 Open VBO -20 to -100 mV 4 Open LED-GND Detected by overvoltage Open Circuit 2 9 D1 ROVL VOVFB,TH Fault condition D2 D3 Feedback voltage error amplifier FBH FBL VREF D4 6 7 + VREF - D5 D6 Max Threshold = 1.0 V D7 D8 Min Threshold = 0.5 V D9 D10 Typical VREF = 0.3 V Open Circuit 4 Max Threshold = -20 mV Min Threshold = -100 mV Figure 12 Datasheet Open FBL OVFB Open circuit condition Open FBH Open VBO Overvoltage comparator RFB Output open circuit conditions Open load and open feedback conditions 22 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Protection and diagnostic functions Startup Normal VIVCC Thermal Shutdown Overvoltage Open Load / Feedback 1 2 3 Shutdown VIVCC,RTH,i VIVCC,RTH,d TJ t TJ,SD,HYST 1 TJ,SD VBO VOVFB,HYS t 2 VOVFB ≥ VOVFB,TH VIN 3 VFBH-VFBL t VREF,2 tSS tSS 0.3 V Typ t VREF,1 VST t Figure 13 Datasheet Open load, overvoltage and overtemperature timing diagram 23 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Protection and diagnostic functions VEN/PWMI H L t TJ TJSD ΔΤ TJSO t TA VSWO t ILED Ipeak t VST and VIVCC 5V t Device off Figure 14 Normal operation Overtemp fault on Overtemp fault on Overtemp fault on Overtemp fault Device overtemperature protection behavior VOVFB example: VOUT,max=40V VOVP,max 1.25mA ROVH TLD5097 OVFB VOVFB,TH 9 ROVL GND Overvoltage protection active 40V ≅ 33.2kΩ 1.25mA 1kΩ 1.25V 1.25V Overvoltage protection disabled 12 t Figure 15 Datasheet Overvoltage protection description 24 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Protection and diagnostic functions 9.2 Electrical characteristics VIN = 8 V to 34 V; TJ = -40°C to +150°C, all voltages with respect to ground, positive current flowing into pin; (unless otherwise specified) Table 11 Electrical characteristics: Protection and diagnosis Parameter Symbol Values Min. Typ. Max. Unit Note or Test Condition Number Status output Status output voltage low VST,LOW – – 0.4 V 1) IST= 1mA P_9.2.1 Status output voltage high VST,HIGH VIVCC -0.4 – VIVCC V 1) IST = -1mA P_9.2.2 Temperature protection Overtemperature shutdown TJ,SD 160 175 190 °C 1) refer to Figure 14 P_9.2.3 Overtemperature shutdown hystereses TJ,SD,HYST – 15 – °C 1) P_9.2.4 Overvoltage protection Output overvoltage feedback threshold increasing VOVFB,TH 1.21 1.25 1.29 V refer to Figure 15 P_9.2.5 Output overvoltage feedback hysteresis VOVFB,HYS 50 – 150 mV 1) Output voltage decreasing P_9.2.6 Overvoltage reaction time tOVPRR 2 – 10 µs 1) Output voltage decreasing P_9.2.7 Overvoltage feedback input current IOVFB -1 0.1 1 µA VOVFB = 1.25 V P_9.2.8 Open load and open feedback diagnostics Open load/feedback Threshold VREF,1,3 -100 – -20 mV refer to Figure 12 VREF = VFBH - VFBL Open circuit 1 or 3 P_9.2.9 Open feedback threshold VREF,2 0.5 – 1 V refer to Figure 12 VREF = VFBH - VFBL Open circuit 2 P_9.2.10 1) Specified by design; not subject to production test. Note: Datasheet Integrated protection functions are designed to prevent IC destruction under fault conditions described in the data sheet. Fault conditions are considered as “outside” normal operating range. Protection functions are not designed for continuous repetitive operation. 25 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Analog dimming 10 Analog dimming This pin influences the “feedback voltage error amplifier” by generating an internal current accordingly to an external reference voltage (VSET). If the analog dimming feature is not needed this pin must be connected to IVCC or external > 1.6 V supply. Different application scenarios are described in Figure 18. This pin can also go outside of the ECU for instance if a thermistor is connected on a separated LED module and the “Analog dimming input” is used to thermally protect the LEDs. For reverse battery protection of this pin an external series resistor should be placed to limit the current. 10.1 Purpose of analog dimming 1. It is difficult for LED manufacturers to deliver LEDs which have the same brightness, colorpoint and forward voltage class. Due to this relatively wide spread of the crucial LED parameters automotive customers order LEDs from one or maximum two different colorpoint classes. The LED manufacturer must preselect the LEDs to deliver the requested colorpoint class. These preselected LEDs are matched in terms of the colorpoint but a variation of the brightness remains. To correct the brightness deviation an analog dimming feature is needed. The mean LED current can be adjusted by applying an external voltage VSET at the SET pin. 2. If the DC/DC application is separated from the LED loads the ECU manufacturers aim is to develop one hardware which should be able to handle different load current conditions (e.g. 80 mA to 400 mA) to cover different applications. To achieve this average LED current adjustment the analog dimming is a crucial feature. 10.2 Description Application example Desired LED current = 400 mA. For the calculation of the correct feedback resistor RFB the following equation can be used: This formula is valid if the analog dimming feature is disabled and VSET > 1.6 V. (10.1) I LED = VREF V 0.3V → RFB = REF → RFB = = 750mΩ RFB I LED 400mA Related electrical parameter is guaranteed with VSET = 5 V (P_5.2.1) A decrease of the average LED current can be achieved by controlling the voltage at the SET pin (VSET) between 0.1 V and 1.6 V. The mathematical relation is given in the formula below: (10.2) I LED = VSET − 0.1V 5 ⋅ RFB Refer to the concept drawing in Figure 17. Datasheet 26 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL VFBH-FBL [mV] Analog dimming 300 Analog dimming disabled Analog dimming enabled Figure 16 VSET [V] 1.6 0.1 0 0 Basic relationship between VREF and VSET voltage VREF VOUT RFB ILED FBL FBH 6 7 IFBL IFBH R2 R1 Vint VBandgap = 1.6V VREF_offset + + + - - Feedback voltage error amplifier ISET SET 10 VSET ISET n*ISET R3 100mV COMP GND 8 12 CCOMP RCOMP Figure 17 Datasheet Concept drawing analog dimming 27 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Analog dimming Multi-purpose usage of the analog dimming feature 1. A µC integrated digital analog converter (DAC) output or a stand alone DAC can be used to supply the SET pin of the TLD5097EL. The integrated voltage regulator (VIVCC) can be used to supply the µC or external components if the current consumption does not exceed 20 mA. 2. The analog dimming feature is directly connected to the input voltage of the system. In this configuration the LED current is reduced if the input voltage VIN is decreasing. The DC/DC boost converter is changing (increasing) the switching duty cycle if VIN drops to a lower potential. This causes an increase of the input current consumption. If applications require a decrease of the LED current in respect to VIN variations this setup can be chosen. 3. The usage of an external resistor divider connected between IVCC (integrated 5 V regulator output and gate buffer pin) SET and GND can be chosen for systems without µC on board. The concept allows to control the LED current via placing cheap low power resistors. Furthermore a temperature sensitive resistor (Thermistor) to protect the LED loads from thermal destruction can be connected additionally. 4. If the analog dimming feature is not needed the SET pin must be connected directly to > 1.6 V potential (e.g. IVCC potential) 5. Instead of a DAC the µC can provide a PWM signal and an external R-C filter produces a constant voltage for the analog dimming. The voltage level depends on the PWM frequency (fPWM) and duty cycle (DC) which can be controlled by the µc software after reading the coding resistor placed at the LED module. Datasheet 28 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Analog dimming +5V 1 2 CIVCC Vbb 1 14 IVCC D/A-Output μC 10 IN RSET2 SET 10 SET VSET VSET RSET1 GND Cfilter GND 12 12 3 4 VIVCC = +5V 1 RSET2 Rfilter CIVCC 10 VSET RSET1 VIVCC = +5V IVCC 1 CIVCC SET Cfilter 10 GND VSET ~ VIVCC 12 IVCC Cfilter SET GND 12 5 +5V 1 IVCC 10 SET CIVCC PWM PWM output Rfilter μC (e.g. XC866) Cfilter VSET GND 12 Figure 18 Datasheet Analog dimming in various applications 29 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Analog dimming 10.3 Electrical characteristics VIN = 8 V to 34 V, TJ = -40°C to +150°C, all voltages with respect to ground, positive current flowing into pin; (unless otherwise specified) Table 12 Electrical characteristics: Protection and diagnosis Parameter SET programming range Symbol VSET Values Min. Typ. Max. 0 – 1.6 Unit Note or Test Condition Number V 1) P_10.3.1 refer to Figure 16 1) Specified by design; not subject to production test. Datasheet 30 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Application information 11 Application information Note: The following information is given as a hint for the implementation of the device only and shall not be regarded as a description or warranty of a certain functionality, condition or quality of the device. LBO Vbattery DBO VIN CIN CBO ILED TSW 14 IN SWO 2 SWCS 4 RFB VREF RCS VCC or VIVCC PWM VSET Analog Dimming 10 Rfilter IC2 Microcontroller (e.g. XC866) SET IC1 TLD5097 Cfilter PWMI Digital Dimming 13 EN / PWMI Spread Spectrum 11 FREQ / SYNC 8 COMP STATUS RCOMP 3 OVFB 9 ROVH D1 D2 ROVL D3 FBH IVCC D4 6 D5 1 CIVCC DPOL RPOL D6 D7 CCOMP RFREQ SGND FBL 7 ST 5 D8 D9 GND D10 12 Figure 19 Boost to Ground application circuit - B2G (Boost configuration) Reference Designator Value Manufacturer Part Number Type Quantity D1 - 10 White Osram LUW H9GP LED 10 DBO Schottky, 3 A, 100 VR Vishay SS3H10 Diode 1 CIN 100 uF, 50V Panasonic EEEFK1H101GP Capacitor 1 CBO 10 uF, 50V Panasonic Electrolytic or Ceramic Bank Capacitor 1 CCOMP 100 nF EPCOS X7R Capacitor 1 CIVCC 1uF , 6.3V EPCOS MLCC CCNPZC105KBW X7R Capacitor 1 IC1 -- Infineon TLD5097 IC 1 IC2 -- Infineon XC866 IC 1 LBO 100 uH Coilcraft MSS1278T-104ML Inductor 1 RCOMP 10 kΩ, 1% Panasonic ERJ3EKF1002V Resistor 1 RFB 820 mΩ, 1% Panasonic ERJ14BQFR82U Resistor 1 RFREQ 20 kΩ, 1% Panasonic ERJ3EKF2002V Resistor 1 ROVH 33.2 kΩ, 1% Panasonic ERJ3EKF3322V Resistor 1 ROVL 1 kΩ, 1% Panasonic ERJ3EKF1001V Resistor 1 RCS 50 mΩ, 1% Panasonic ERJB1CFR05U Resistor 1 TSW 100V N-ch, 35A Infineon IPG20N10S4L-22 Transistor 1 alternativ: 60V N-ch, 30A Infineon IPD30N06S4L-23 Transistor 1 Figure 20 Datasheet Bill of Materials for B2G application circuit 31 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Application information L1 DBO CSEPIC VIN VIN = 4.5V to 45V CIN ISW RFB L2 VREF CBO TSW IN SWO 2 SWCS 4 ILED D1 RCS VCC or VIVCC PWM Analog Dimming IC2 Microcontroller (e.g. XC866) 10 SET OVFB 9 D2 D4 ROVL IC1 TLD5097 Cfilter PWMI D5 D6 D7 Digital Dimming STATUS 3 D3 VSET Rfilter SGND ROVH 13 Spread Spectrum EN / PWMI 11 FREQ / SYNC 8 COMP FBH 6 FBL 7 CCOMP DPOL IVCC Number of LEDs could be variable independent from VIN: → BUCK-BOOST configuration 14 Dn RPOL 1 CIVCC RFREQ RCOMP ST 5 GND 12 Figure 21 SEPIC application circuit (Buck - Boost configuration) Reference Designator Value Manufacturer Part Number Type Quantity D1 - n White Osram LUW H9GP LED variable DBO Schottky, 3 A, 100 VR Vishay SS3H10 Diode 1 DPOL 80V Diode Infineon BAS1603W Diode 1 CSEPIC 3.3 uF, 20V EPCOS X7R, Low ESR Capacitor 1 CIN 100 uF, 50V Panasonic EEEFK1H101GP Capacitor 1 CBO 10 uF, 50V Panasonic EEEFK 1H100P Capacitor 1 CCOMP 100 nF EPCOS X7R Capacitor 1 CIVCC 1uF , 6.3V EPCOS X7R Capacitor 1 IC1 -- Infineon TLD5097 IC 1 IC2 -- Infineon XC866 IC 1 L1 , L2 Figure 22 Datasheet 47 uH Coilcraft MSS1278T-473ML Inductor 2 alternativ: 22uH coupled inductor Coilcraft MSD1278-223MLD Inductor 1 RCOMP, RPOL 10 kΩ, 1% Panasonic ERJ3EKF1002V Resistor 2 RFB 820 mΩ, 1% Panasonic ERJ14BQFR82U Resistor 1 RFREQ 20 kΩ, 1% Panasonic ERJ3EKF2002V Resistor 1 ROVH 33.2 kΩ, 1% Panasonic ERJ3EKF3322V Resistor 1 ROVL 1 kΩ, 1% Panasonic ERJ3EKF1001V Resistor 1 RCS 50 mΩ, 1% Panasonic ERJB1CFR05U Resistor 1 TSW 100V N-ch, 35A Infineon IPD35N10S3L-26 Transistor 1 alternativ: 60V N-ch, 30A Infineon IPD30N06S4L-23 Transistor 1 Bill of Materials for SEPIC application circuit 32 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Application information DBO VIN VIN = 4.5V to 45V L1 CIN ISW RFB L2 VREF CBO TSW 14 SWO 2 SWCS 4 IN ILED RCS VCC or VIVCC 10 Rfilter SET OVFB 9 ROVH D1 D3 ROVL IC1 TLD5097 Cfilter PWMI D4 D5 D6 Digital Dimming STATUS 3 D2 Analog Dimming IC2 Microcontroller (e.g. XC866) SGND VSET 13 Output EN / PWMI 11 FREQ / SYNC 8 COMP FBH 6 FBL 7 D7 CCOMP DPOL IVCC Number of LEDs could be variable independent from VIN: → BUCK-BOOST configuration PWM RPOL Dn 1 CIVCC RFREQ RCOMP ST 5 GND 12 Figure 23 Flyback application circuit (Buck - Boost configuration) Reference Designator Value Manufacturer Part Number Type Quantity D1 - n White Osram LUW H9GP LED variable DBO Schottky, 3 A, 100 VR Vishay SS3H10 Diode 1 CBO 3.3 uF, 50V (100V) EPCOS X7R, Low ESR Capacitor 1 CIN 100 uF, 50V Panasonic EEEFK1H101GP Capacitor 1 CCOMP 47 nF EPCOS X7R Capacitor 1 CIVCC 1 uF , 6.3V EPCOS X7R Capacitor 1 IC1 -- Infineon TLD5097 IC 1 IC2 -- Infineon XC866 IC 1 L1 , L2 1 µH / 9 uH EPCOS Transformer EHP 16 Inductor 1 RCOMP, RPOL 10 kΩ, 1% Panasonic ERJ3EKF1002V Resistor 2 DPOL 80 V Diode Infineon BAS1603W Diode 1 RFB 820 mΩ, 1% Isabellenhütte SMS – Power Resistor Resistor 1 RFREQ 10 kΩ, 1% Panasonic ERJ3EKF1002V Resistor 1 ROVH 56.2 kΩ, 1% Panasonic ERJ3EKF5622V Resistor 1 ROVL 1.24 kΩ, 1% Panasonic ERJ3EKF1241V Resistor 1 RCS 5 mΩ, 1% Isabellenhütte SMS - Power Resistor Resistor 1 TSW 100V N-ch, 35A Infineon IPG20N10S4L-22 Transistor 1 alternativ: 60V N-ch, 30A Infineon IPD30N06S4L-23 Transistor 1 Figure 24 Datasheet Bill of Materials for Flyback application circuit 33 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Application information CBO RFB VIN = 4.5V to 45V CIN D1 Dn Number of LEDs could be variable independent from VIN: → BUCK-BOOST configuration DBO LBO ILED ISW VOUT VCC or VIVCC PWM FBH 7 FBL 14 IN 10 SET 2 SWCS 4 SGND 3 OVFB 9 RCS ROVH VSET Analog Dimming Rfilter IC2 Microcontroller (e.g. XC866) Diagnosis STATUS 6 TSW SWO Cfilter ST 5 PWMI IC1 TLD5097 Digital Dimming 13 EN / PWMI Spread Spectrum 11 FREQ / SYNC ROVL COMP 8 IVCC 1 CCOMP CIVCC GND RFREQ RCOMP 12 Figure 25 Boost to Battery application circuit - B2B (Buck - Boost configuration) Reference Designator Value Manufacturer Part Number Type Quantity D1 - n White Osram LUW H9GP LED variable DBO Schottky, 3 A, 100 VR Vishay SS3H10 Diode 1 CBO 3.3 uF, 50V (100V) EPCOS X7R, Low ESR Capacitor 1 CIN 100 uF, 50V Panasonic EEEFK1H101GP Capacitor 1 CCOMP 47 nF EPCOS X7R Capacitor 1 CIVCC 1 uF , 6.3V EPCOS X7R Capacitor 1 IC1 -- Infineon TLD5097 IC 1 IC2 -- Infineon XC866 IC 1 L1 , L2 1 µH / 9 uH EPCOS Transformer EHP 16 Inductor 1 RCOMP, RPOL 10 kΩ, 1% Panasonic ERJ3EKF1002V Resistor 2 DPOL 80 V Diode Infineon BAS1603W Diode 1 RFB 820 mΩ, 1% Isabellenhütte SMS – Power Resistor Resistor 1 RFREQ 10 kΩ, 1% Panasonic ERJ3EKF1002V Resistor 1 ROVH 56.2 kΩ, 1% Panasonic ERJ3EKF5622V Resistor 1 ROVL 1.24 kΩ, 1% Panasonic ERJ3EKF1241V Resistor 1 RCS 5 mΩ, 1% Isabellenhütte SMS - Power Resistor Resistor 1 100V N-ch, 35A Infineon IPG20N10S4L-22 Transistor 1 alternativ: 60V N-ch, 30A Infineon IPD30N06S4L-23 Transistor 1 TSW Figure 26 Datasheet Bill of Materials for B2B application circuit 34 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Application information DBO D1 CBO Vbattery D2 VREF LBO ILED CIN RFB BUCK Setup: VIN > VOUT 14 IN IC1 TLD5097 VCC or VIVCC PWM FBH VSET Analog Dimming 10 Rfilter IC2 Microcontroller (e.g. XC866) 6 SET FBL Cfilter 7 IVCC 1 CIVCC Diagnosis 5 ST 13 EN / PWMI PWMI RPOL RPOL TSW Digital Dimming Spread Spectrum 11 FREQ / SYNC 8 COMP SWO SWCS 2 SGND 3 OVFB 9 4 RCS CCOMP RFREQ RCOMP GND 12 Figure 27 Buck application circuit Reference Designator Value Manufacturer Part Number Type Quantity D1 -2 White Osram LE UW Q9WP LED 2 DBO Schottky, 3 A, 100 VR Vishay SS3H10 Diode 1 DPOL 80V Diode Infineon BAS1603W Diode 1 CBO 4.7 uF, 50V EPCOS X7R Capacitor 1 CIN 100 uF, 50V Panasonic EEEFK1H101GP Capacitor 1 CCOMP 47 nF EPCOS X7R Capacitor 1 CIVCC 1 uF , 6.3V EPCOS MLCC CCNPZC105KBW X7R Capacitor 1 IC1 -- Infineon TLD5097 IC 1 IC2 -- Infineon XC866 IC 1 L1 22 µH Coilcraft MSS1278T Inductor 1 RPOL 10 kΩ, 1% Panasonic ERJ3EKF1002V Resistor 1 RFB 820 mΩ, 1% Isabellenhütte SMS – Power Resistor Resistor 1 RFREQ 20 kΩ, 1% Panasonic ERJ3EKF2002V Resistor 1 RCS 50 mΩ, 1% Isabellenhütte SMS - Power Resistor Resistor 1 TSW 100V N-ch, 35A Infineon IPG20N10S4L-22 Transistor 1 alternativ: 60V N-ch, 30A Infineon IPD30N06S4L-23 Transistor 1 Figure 28 Datasheet Bill of Materials for Buck application circuit 35 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Application information IBO L1 DRV LBO VIN VBATT DBO ILoad CBO ISW CIN VBO C2 C1 constant VOUT RL SWO 14 VCC or VIVCC 1 TSW 2 IN SWCS IVCC 3 RCS CIVCC Diagnosis RST Dimming 5 ST 10 SET SGND 4 OVFB 9 ROVH ROVL IC1 TLD5097 IC2 Microcontroller (e.g. XC866) PWM 13 EN / PWMI CLK/Spread Spectrum 11 FREQ / SYNC 8 COMP RFB1 FBH 6 RFB2 VREF CCOMP FBL 7 RFB3 RFREQ GND RCOMP 12 Figure 29 Boost voltage application circuit Reference Designator Value Manufacturer Part Number Type Quantity DBO Schottky, 3 A, 100 VR Vishay SS3H10 Diode 1 CBO 100 uF, 80V Panasonic EEVFK1K101Q Capacitor 1 CIN 100 uF, 50V Panasonic EEEFK1H101GP Capacitor 1 CCOMP 10 nF, 16V EPCOS X7R Capacitor 1 CIVCC 1 uF, 6.3V Panasonic X7R Capacitor 1 IC1 -- Infineon TLD5097 IC 1 IC2 -- Infineon XC866 IC 1 LBO 100 uH Coilcraft MSS1278T-104ML_ Inductor 1 RCOMP 10 kohms, 1% Panasonic ERJ3EKF1002V Resistor 1 RFB1,RFB3 51 kohms, 1% Panasonic ERJ3EKF5102V Resistor 1 RFB2 1 kohms, 1% Panasonic ERJ3EKF1001V Resistor 1 RFREQ 20 kohms, 1% Panasonic ERJ3EKF2002V Resistor 1 ROVH 33.2 kohms, 1% Panasonic ERJ3EKF3322V Resistor 1 ROVL 1 kohms, 1% Panasonic ERJ3EKF1001V Resistor 1 RCS 50 mohms, 1% Panasonic ERJB1CFR05U Resistor 1 TSW N-ch, OptiMOS-T2 100V Infineon IPG20N10S4L-22 Transistor 1 Figure 30 Bill of Materials for Boost voltage application circuit Note: The application drawings and corresponding bill of materials are simplified examples. Optimization of the external components must be done accordingly to specific application requirements. Datasheet 36 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Application information 11.1 Further Application Information • For further information you may contact http://www.infineon.com/ • Application Note: TLD509x DC-DC Multitopology Controller IC “Dimensioning and Stability Guideline Theory and Practice” Datasheet 37 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Package outlines Package outlines 0.35 x 45° 6 x 0.65 = 3.9 0.15 M 0.08 C SEATING PLANE 0.64 ±0.25 D Bottom View 3 ±0.2 1 8 1 7 Index Marking 4.9 ±0.11) 0.2 C 14x 6 ±0.2 C A-B D 14x A 14 0.19 +0.06 H Exposed Diepad B 0.1 H A-B 2x 7 14 8 2.65 ±0.2 0.25 ±0.05 2) 0.1 H D 2x 8° MAX. C 0.65 3.9 ±0.11) 1.7 MAX. 0.05 ±0.05 STAND OFF (1.45) 12 1) Does not include plastic or metal protrusion of 0.15 max. per side 2) Lead width can be 0.61 max. in dambar area PG-SSOP-14-1,-2,-3, -5-PO V05 Figure 31 Outline PG-SSOP-14-31) Green product (RoHS compliant) To meet the world-wide customer requirements for environmentally friendly products and to be compliant with government regulations the device is available as a green product. Green products are RoHS-Compliant (i.e Pb-free finish on leads and suitable for Pb-free soldering according to IPC/JEDEC J-STD-020). Further information on packages https://www.infineon.com/packages 1) Dimensions in mm Datasheet 38 Rev. 1.30 2018-10-17 LITIX™ Power TLD5097EL Revision history 13 Revision history Revision Date Changes 1.3 2018-10-17 P_4.1.3 → Note and test condition changed P_4.1.18 and P_4.1.19 → removed P_4.3.1 to P_4.3.4 → Note and test condition changed P_8.1.2 → Note and test condition changed Table 9 → added footnote 1) “Not subject to production test, specified by design” Template update 1.0 to 1.2 2016-06-30 Initial datasheet and updates Brand name change to LITIX™ Power Datasheet 39 Rev. 1.30 2018-10-17 Trademarks All referenced product or service names and trademarks are the property of their respective owners. Edition 2018-10-17 Published by Infineon Technologies AG 81726 Munich, Germany © 2018 Infineon Technologies AG. All Rights Reserved. Do you have a question about any aspect of this document? Email: erratum@infineon.com Document reference LITIX™ Power TLD5097EL v1.30 IMPORTANT NOTICE The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics ("Beschaffenheitsgarantie"). With respect to any examples, hints or any typical values stated herein and/or any information regarding the application of the product, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation warranties of non-infringement of intellectual property rights of any third party. In addition, any information given in this document is subject to customer's compliance with its obligations stated in this document and any applicable legal requirements, norms and standards concerning customer's products and any use of the product of Infineon Technologies in customer's applications. The data contained in this document is exclusively intended for technically trained staff. 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