TLD1211SJ

Infineon® Basic LED Driver TLD1211SJ High Side Current Source 1 channel Typical 85mA load current, up to 2.5A load current using external transistors Data sheet Rev. 1.0, 2010-03-26 Automotive Basic LED Driver TLD1211SJ TLD1211SJ 1 Features • • • • • • • • • • • • Overview Adjustable Constant Output Current up to 85 mA LED Current of 2.5 A possible by using external Power Transistors Voltage Drop across Sense Resistor typ. 0.15 V Internal Bandgap Voltage Reference enables High Output Current accuracy EN Input for PWM brightness control Overvoltage Protection Temperature dependent Output Current Reduction Very Low Standby Current Maximum Operating Voltage 28 V Small SMD Package Green Product (RoHS compliant) AEC Qualified PG-DSO-8-16 Applications • • • • • LED Controller for Automotive applications, Low- and High-Power LED Universal Constant Current Source Interior and Exterior Lighting Instrument backlighting Illumination Description The TLD1211SJ is an integrated adjustable constant current source realized in a bipolar IC technology. The IC is designed to supply LEDs under the severe conditions of automotive applications resulting in constant brightness and extended LED lifetime. The TLD1211SJ is capable to drive high current, high brightness LEDs up to 2.5 A by using additional external output stages as “booster“ transistors. For LED currents up to 85mA the IC can be used as a stand alone device and requires only one voltage sense resistor as an external component. Protection circuits prevent damage to the device in case of overload, short circuit, over voltage, and overtemperature. Furthermore, the temperature dependent current reduction is able to protect LEDs which are thermally coupled to the IC. The integrated EN input of the TLD1211SJ enables LED brightness control by pulse width modulation. Type TLD1211SJ Data sheet Package PG-DSO-8-16 2 Marking TLD1211SJ Rev. 1.0, 2010-03-26 TLD1211SJ Basic LED Driver Block Diagram 2 Block Diagram NC 1 8 NC TLD1211SJ VS 2 7 OUT VSENSE 3 Bandgap based voltage reference Vref OP Output stage 6 EN GND 4 5 NC TLD1211_Block diagram.vsd Figure 1 Block Diagram 2.1 Closed Loop Test Setup Vs Vsense + = Vref OUT Vout R1 EN GND R2 TLD1211 _Test circuit.vsd Figure 2 Closed loop Test setup Data sheet 3 Rev. 1.0, 2010-03-26 TLD1211SJ Basic LED Driver Pin Configuration 3 3.1 Pin Configuration Pin Assignment NC VS VSENSE GND 1 2 3 4 8 7 6 5 NC OUT EN NC PG-DSO- 8-16.vsd Figure 3 Pin Configuration 3.2 Pin 1 2 3 4 5 6 7 8 Pin Definition and Functions Symbol NC Function Not Connected Supply voltage Sense input IC ground, connect with pin 2 on PCB Not Connected Enable (PWM input) Output Not Connected Vs Vsense GND NC EN OUT NC Data sheet 4 Rev. 1.0, 2010-03-26 TLD1211SJ Basic LED Driver Electrical Characteristics 4 4.1 Table 1 Electrical Characteristics Absolute Maximum Ratings Absolute Maximum Ratings1) 40 °C < TJ < 150 °C; all voltages with respect to ground; positive current defined flowing into pin; unless otherwise specified Pos. 4.1.1 4.1.2 4.1.3 4.1.4 4.1.5 4.1.6 4.1.7 4.1.8 Parameter Supply voltage Sense Voltage EN Voltage Output current Power Dissipation Junction temperature Storage temperature range ESD resistivity Symbol Min. Limit values Max. 45 7 7 – 500 150 150 4000 V V V mA mW °C °C V HBM2) internally limited -0.3 -0.3 -0.3 – 0 -40 -55 -4000 Unit Remark Vs Vsense VEN Iout Ptot TJ TSTG VESD_HBM 1) Not subject to production test, specified by design 2) ESD susceptibility HBM according to EIA/JESD 22-A 114B 4.2 Table 2 Pos. 4.2.1 Thermal Resistance Thermal Resistance Parameter Junction to Ambient 1) 2) Symbol Min. Limit Values Typ. 155 96 86 Max. – – – – – – Unit K/W K/W K/W Conditions Footprint only 300 mm2 PCB heatsink area 600 mm2 PCB heatsink area RthJA 1) Not subject to production test, specified by design 2) Package was simulated on a FR4 PCB, 80 x 80 x 1.5 mm; 35 µm Cu Data sheet 5 Rev. 1.0, 2010-03-26 TLD1211SJ Basic LED Driver Electrical Characteristics 4.3 4.3 Electrical Characteristics Electrical Characteristics 8 V < VS < 28 V; - 40 °C < TJ < 150 °C, EN = 5 V; R1, R2 = open; all voltages with respect to ground; positive current defined flowing into pin; unless otherwise specified Parameter Operating current during over voltage Operating current during open load Standby current Symbol Min. Values Typ. – 1.4 – Max. 600 1.7 300 µA mA nA – 0.5 – Unit Note / Test Condition Table 3 Pos. 4.3.1 4.3.2 4.3.3 IsOV Isopen load Isstandby Vout = 0 V; Vs = 42 V; Vsense = 0 mV Vout = open; Vsense = 0 mV EN = 0 V; Vsense = 0 mV; Tj < 85°C1) EN = 0 V; Vsense = 0 mV 4.3.4 4.3.51 Standby current Output current Isstandby,HOT – Iout,ONCOLD 40 – – 30 – µA mA VS-Vout = 3 V; Vsense = 0 mV; Tj = -40°C 4.3.52 Output current Iout,ON 65 85 110 mA Tj > 0°C1); Tj < 135°C1) 4.3.6 Output current VS-Vout = 3 V; Vsense = 0 mV; Iout,ONHOT 60 – – mA VS-Vout = 3 V; Vsense = 0 mV; Tj = 150°C EN = 0 V; Vout = 0 V 4.3.7 4.3.8 4.3.9 Output Leakage current Current of Sense input Voltage of Sense input Iout,OFF Isense Vsense – -5 135 – – 150 400 0.5 165 nA µA mV Vout = 0 V, Vsense = 200 mV R1 = 390 Ω; R2 = 10 Ω See Figure 2; Tj < 115°C1) – 4.3.10 4.3.11 Over voltage Protection Drop Voltage Vs, OV Vs - Vout 28 – 33 – – 1.3 V V Iout < 15 mA Vsense = 0 mV; Vs = 8 V EN Input 4.3.12 4.3.13 Current of enable input High Level voltage range IEN VEN,ON 60 1 90 – 130 5.5 µA V VEN = 5 V Use resistors at pin to be CMOS/TTL compatible; See Figure 16 Use resistors at pin to be CMOS/TTL compatible; See Figure 16 4.3.14 Low Level voltage range VEN,OFF -0.3 – 0.3 V Data sheet 6 Rev. 1.0, 2010-03-26 TLD1211SJ Basic LED Driver Electrical Characteristics Table 3 Electrical Characteristics (cont’d) 8 V < VS < 28 V; - 40 °C < TJ < 150 °C, EN = 5 V; R1, R2 = open; all voltages with respect to ground; positive current defined flowing into pin; unless otherwise specified Parameter Turn on time2) Symbol Min. 4.3.15 Values Typ. – Max. 65 µs – Unit Note / Test Condition Pos. tEN,ON Iout100% = 15mA, See Figure 4; R1 = 390 Ω; R2 = 10 Ω, See Figure 2 4.3.16 Turn off time 2) tEN,OFF – – 60 µs Iout100% = 15mA; See Figure 4; R1 = 390 Ω; R2 = 10 Ω, See Figure 2 1) Not subject to production test, based on temperature characterization 2) When using an external Boost transistor this time is reduced (See also Figure 16) EN tEN, ON Iout 80% tEN ,OFF t 20% t TLD1211_Power_stage.emf Figure 4 Timing Diagram Data sheet 7 Rev. 1.0, 2010-03-26 TLD1211SJ Basic LED Driver Characterization Data 5 Characterization Data Characterization data based on typical device. TLD1211SJ has been measured in a setup with undefined high thermal resistance. 5.1 Setup 1 Setup according to Figure 2. R1 = 390 Ω , R2 = 10 Ω, VEN = 5 V Iout v s. Tj =f(Vs) 16 15 14 13 Iout [mA] 12 11 10 9 8 7 6 -50 -25 0 25 50 Tj [°C] 75 100 125 150 175 Vs = 8V Vs = 14V Vs = 24 V Figure 5 Iout vs TJ =f(Vs) Iout v s. Vs = f(Tj) 16 15 14 13 Iout [mA] 12 11 10 9 8 7 6 0 5 10 15 20 Vs [V] 25 30 35 40 45 tem p= -40°C tem p= -25°C tem p= 0°C tem p= 25°C tem p= 45°C tem p= 65°C tem p= 85°C tem p= 105°C tem p= 125°C tem p= 150°C Figure 6 Iout vs Vs =f(TJ) Data sheet 8 Rev. 1.0, 2010-03-26 TLD1211SJ Basic LED Driver Characterization Data 5.2 Setup 2 Setup according to Figure 2. R1 = 0 Ω , R2 = 0 Ω, Vout = 0 V, Vsense = 0 V, VEN = 5 V Iout v s. Tj = f(Vs) Vse nse =0V 96 86 76 66 Iout [mA] 56 46 36 26 16 6 -50 -25 0 25 50 Tj [°C] 75 100 125 150 175 V s= 8V V s= 14V V s= 24 V Figure 7 Iout vs TJ =f(Vs) Iout v s. Vs = f(Tj) Vse nse =0V 96 86 76 66 Iout [mA] 56 46 36 26 16 6 0 5 10 15 20 V s [V ] 25 30 35 40 45 temp= -40°C temp= -25°C temp= 0°C temp= 25°C temp= 45°C temp= 65°C temp= 85°C temp= 105°C temp= 125°C temp= 150°C Figure 8 Iout vs Vs =f(TJ) Data sheet 9 Rev. 1.0, 2010-03-26 TLD1211SJ Basic LED Driver Characterization Data 5.3 Setup 3 Vout = 0 V, Vsense = variable, VEN = 5 V Iout v s. Vse nse = f(Tj) Vs=8V 100 90 80 70 Iout [mA] 60 50 40 30 20 10 0 100 temp= -40°C temp= -25°C temp= 0°C temp= 25°C temp= 45°C temp= 65°C temp= 85°C temp= 105°C temp= 125°C temp= 150°C 110 120 130 140 V sense [V ] 150 160 170 180 Figure 9 Iout vs Vsense =f(TJ) at Vs = 8 V Iout v s. Vse nse = f(Tj) Vs=14V 100 90 80 70 Iout [mA] 60 50 40 30 20 10 0 100 temp= -40°C temp= -25°C temp= 0°C temp= 25°C temp= 45°C temp= 65°C temp= 85°C temp= 105°C temp= 125°C temp= 150°C 110 120 130 140 V sense [V ] 150 160 170 180 Figure 10 Iout vs Vsense =f(TJ) at Vs = 14 V Data sheet 10 Rev. 1.0, 2010-03-26 TLD1211SJ Basic LED Driver Characterization Data Iout v s. Vse nse = f(Tj) Vs=24V 100 90 80 70 Iout [mA] 60 50 40 30 20 10 0 100 temp= -40°C temp= -25°C temp= 0°C temp= 25°C temp= 45°C temp= 65°C temp= 85°C temp= 105°C temp= 125°C temp= 150°C 110 120 130 140 V sense [V ] 150 160 170 180 Figure 11 Iout vs Vsense =f(TJ) at Vs = 24 V 5.4 Setup 4 Vs = 14 V, Vout = 6 V, Vsense = 20 mV, VEN = variable Iout vs. VEN = f(Tj) Vs=14V 100 90 80 70 Iout [mA] 60 50 40 30 20 10 0 0 0,5 1 VEN [V] 1,5 2 2,5 temp= -40°C temp= -25°C temp= 0°C temp= 25°C temp= 45°C temp= 65°C temp= 85°C temp= 105°C temp= 125°C temp= 150°C Figure 12 Iout vs VEBN =f(TJ) at Vs = 14 V Data sheet 11 Rev. 1.0, 2010-03-26 TLD1211SJ Basic LED Driver Characterization Data 5.5 Setup 5 Vout = 0 V, Vsense = 0 V, VEN = 0 V Is vs. Tj = f(Vs) 14 12 10 8 6 4 2 0 -50 Vs= 8V Vs= 14V Vs= 24 V Is [µA] -25 0 25 50 Tj [°C] 75 100 125 150 Figure 13 Is vs TJ =f(Vs) Is vs. Tj = f(Vs) Tj < 125°C 1 0,9 0,8 0,7 0,6 Is [µA] 0,5 0,4 0,3 0,2 0,1 0 -50 -25 0 25 Tj [°C] 50 75 100 125 Vs= 8V Vs= 14V Vs= 24 V Figure 14 Is vs TJ =f(Vs), TJ < 125 °C Data sheet 12 Rev. 1.0, 2010-03-26 TLD1211SJ Basic LED Driver Characterization Data Is vs. Vs = f(Tj) 50 45 40 35 30 Is [µA] 25 20 15 10 5 0 0 5 10 15 20 Vs [V] 25 30 35 40 45 temp= -40°C temp= -25°C temp= 0°C temp= 25°C temp= 45°C temp= 65°C temp= 85°C temp= 105°C temp= 125°C temp= 150°C Figure 15 Is vs Vs =f(TJ) Data sheet 13 Rev. 1.0, 2010-03-26 TLD1211SJ Basic LED Driver Application Information 6 VBAT Application Information BAS3010A-03W VI VQ 5V 10µF VREG TLE4264 OUT/ PWM 1,8kΩ 1kΩ µC GND GND 1 NC NC 8 TLD1211SJ VS OUT 2 7 47nF R1 = 820Ω BCX55-16 3 VSENSE Bandgap based voltage reference Vref OP Output stage EN 6 4 GND NC 5 R2 = 100Ω Rsense = 0,42Ω TLD1211 Application diagram 2 .vsd Figure 16 Application Information with External Output Stage Note: This is a very simplified example of an application circuit. The function must be verified in the real application. Data sheet 14 Rev. 1.0, 2010-03-26 TLD1211SJ Basic LED Driver Application Information VBAT BAS 3010A-03W VI VQ 5V 10µF VREG TLE4264 OUT/ PWM 1.8kΩ 1k Ω µC GND GND 1 NC NC 8 TLD1211SJ VS OUT 2 7 47nF 3 VSENSE Bandgap based voltage reference Vref OP Output stage EN 6 4 GND NC 5 Figure 17 Application Information with Integrated Output Stage Usage Note: This is a very simplified example of an application circuit. The function must be verified in the real application. Data sheet 15 Rev. 1.0, 2010-03-26 TLD1211SJ Basic LED Driver Package Outlines 7 Package Outlines Dimensions in mm Figure 18 Package Outline; PG-DSO-8-16 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). For further information on alternative packages, please visit our website: http://www.infineon.com/packages. Data sheet 16 Rev. 1.0, 2010-03-26 TLD1211SJ Basic LED Driver Revision History 8 Revision History Changes Initial revision Revision Date 1.0 2010-03-26 Data sheet 17 Rev. 1.0, 2010-03-26 Edition 2010-03-26 Published by Infineon Technologies AG 81726 Munich, Germany © 2010 Infineon Technologies AG All Rights Reserved. Legal Disclaimer The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics. 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