BCR602XTSA1

BCR602 hot plug IC with dimming 60 V linear LED controller IC for dimmable LED applications with ripple suppression, overtemperature and hot plug protection Features • • • • • • Supply voltage 8 V to 60 V, Supports use of NPN bipolar transistors and NMOS MOSFETS, AC supply voltage ripple suppression, Dimming at pin MFIO - 3% analog dimming of LED current by resistor Rset or DC voltage, - 1% PWM dimming of LED current by PWM signals, Rset functionality at pin MFIO, LED current precision ±3%. Protection features • • Hot plug protection, Overtemperature protection. Target applications • • LED light engines/modules, LED replacement lamps. Advantages with respect to discrete solutions • • • • Low BOM count, Lower assembly cost, Smaller form factor, Higher reliability due to less parts and soldering joints. Product validation Qualified for industrial applications according to the relevant tests of JEDEC47/20/22. Device information Figure 1 Datasheet DRV 1 6 VS GND 2 5 TEST VSENSE 3 4 MFIO Pin configuration www.infineon.com Please read the Important Notice and Warnings at the end of this document Revision 1.1 2018-12-3 BCR602 hot plug IC with dimming Description Table 1 Type Part information Package 60V Linear Current Control PG-SOT23-6 Chip BCR602 Configuration Marking code n.a. 602 Description BCR602 is a linear LED controller IC regulating the LED current by means of an external driver transistor. BCR602 supports use of NPN bipolar transistors and NMOSFETs to cover a wide LED current and power range up to several hundred mA. The LED current is fully scalable by dimensioning an external current sense resistor. BCR602 suppresses the voltage ripple of the power supply driving a constant LED current for better light quality. The LED current can be dimmed by resistors as well as analog or digital PWM voltages connected to the Multi Function Input Output (MFIO) pin. The embedded hot plug protection allows plug in and plug out of any LED load during operation. The overtemperature protection will dim the LED current if the BCR602 junction temperature threshold is exceeded. In this case the LED current will be reduced to 30% of the nominal current. Once the junction temperature drops below the temperature hysteresis nominal LED current is resumed. The BCR602 is a perfect fit for LED applications by combining small form factor with low cost. Through its higher integration, BOM savings and ensuring long lifetime of LEDs, this controller has many advantages compared to discrete solutions. Datasheet 2 Revision 1.1 2018-12-3 BCR602 hot plug IC with dimming Table of contents Table of contents Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Protection features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Target applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Advantages with respect to discrete solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Product validation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Device information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 Thermal characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 5 Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 7 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 8 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Datasheet 3 Revision 1.1 2018-12-3 BCR602 hot plug IC with dimming Pin configuration 1 Pin configuration Figure 2 Pin configuration Table 2 Pin configuration DRV 1 6 VS GND 2 5 TEST VSENSE 3 4 MFIO Pin no. Pin name Pin type Function 1 DRV Output Driver output to control base or gate of the external transistor 2 GND GND IC ground 3 VSENSE Input Measurement of Vsense voltage 4 MFIO Input Multifunctional IO for resistive (via external Rset), DC voltage and PWM voltage dimming 5 TEST Output For test purpose, it must not be directly connected to ground. It is recommended to leave TEST pin open or attach a resistor to ground > 1 MΩ. 6 VS Input Supply voltage Datasheet 4 Revision 1.1 2018-12-3 BCR602 hot plug IC with dimming Functional description 2 Functional description Typical application circuit Cin Rpred Controller IC OR VS DRV BCR602 GND VSENSE Rsense TEST MFIO Rset DAC PWM Figure 3 µC U Typical application circuit Application hints 1. 2. External driver transistors BCR602 is able to drive NPN transistors as well as NMOSFETs. NPN transistors can be used for LED currents up to several 100 mA while NMOSFETs are preferable for high LED currents. The smaller current using BJTs is caused by the DC current gain value hFE value of the used BJT. E.g. a typical hFE of 75 limits the application to a maximum below 750 mA. Supply voltage of BCR602 To drive higher output currents into an external NPN driver transistor it might be necessary to limit the supply voltage of BCR602 significantly below 60 V to reduce power dissipation inside the IC. This can be achieved either by adding a series resistor (Rpred) between supply voltage and VS pin of BCR602 or by operating BCR602 by an auxiliary winding of the power supply providing a lower IC supply voltage as e.g. 8 V or higher. Dimming mechanism Application MFIO input signal can be a DC voltage or a pulse width modulated digital signal for dimming of the LED current. 1. Pure DC dimming: input voltage VMFIO at pin MFIO. Continuous dimming from 3% dimming level up to 100% is embedded into a 100% ceiling plateau and an hysteresis range to off. Static dimming to a fixed value can be done via the resistor Rset. Datasheet 5 Revision 1.1 2018-12-3 BCR602 hot plug IC with dimming Functional description ILED 100% Analog dimming range 3% 0% 3% off dim 0.1V 0.2V Figure 4 2. 3. VMFIO 100% 3.3 V 5V DC dimming Pure PWM dimming: The PWM duty cycle at pin MFIO defines the dimming level. The PWM voltage amplitude corresponding to LED on must be in the voltage range specified by VMFIO, 100% and PWM voltage amplitude corresponding to LED off must be in the voltage range specified by VMFIO, off. The LED current is PWM modulated according to the PWM input signal. For resistive dimming using Rset and internal MFIO current, the internal pull-down has to be taken into account. For proper dimensioning refer to Figure 5 . 5V BCR602 IMFIO,setcs MFIO RMFIO/2 Rset RMFIO/2 V MFIO = IMFIO, setcs Rset = Datasheet Rset * RMFIO Rset + RMFIO V MFIO * RMFIO IMFIO, setcs * Rset − V MFIO Figure 5 • • Limiter, Buffer Rset dimensioning for resistor dimming RMFIO.typical = 285 kΩ, IMFIO,setcs,typical = 20 µA. 6 Revision 1.1 2018-12-3 BCR602 hot plug IC with dimming Thermal characteristics 3 Thermal characteristics Figure 6 Maximum permitted effective output source current out of pin DRV into external driver transistor for a design example of 4 mA DC driver The maximum permitted effective driver source current shown in Figure 6 can be calculated by following equation: IDRV = T OTP, on, min − T A −V S RthJA VS ⋅ Is = T OTP, on, min − T A − IS V S ⋅ RthJA The equation considers the power dissipation caused by the current consumption of the IC itself. If the driver current exceeds the calculated threshold the lower spec limit of the overtemperature protection will be exceeded and OTP might be triggered. TOTP, on, min Datasheet The lower spec limit of the overtemperature protection threshold should not be exceeded to avoid triggering the OTP. 7 Revision 1.1 2018-12-3 BCR602 hot plug IC with dimming Absolute maximum ratings 4 Absolute maximum ratings Table 3 Absolute maximum ratings Parameter Symbol Values Min. Typ. Unit Note or test condition Max. Junction temperature TJ -40 – 160 °C – Supply voltage VS 0 – 65 V – Input voltage at pin MFIO VMFIO 0 – 5.0 V – Input voltage at pin VSENSE Vsense 0 – 3.6 V – Power dissipation Ptot – – 360 mW VS = 60 V, IS = 2 mA, IDRV = -4 mA ESD robustness VESD,HBM – – 2 kV HBMacc. to JEDEC JS-001 VESD,CDM - - 500 V CDM acc. to JEDEC JS-002 Attention: Stresses above the maximum values listed here may cause permanent damage to the device. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Maximum ratings are absolute ratings. Exceeding only one of these values may cause irreversible damage to the integrated circuit. Table 4 Parameter Maximum thermal resistance Symbol Values Min. Thermal resistance junction to ambient Datasheet RthJA Typ. Unit Note or test condition Max. – – 290 K/W JEDEC 1s0p (JESD 51-3) footprint w/o extra cooling area RthJA,100 – – 200 K/W JEDEC 1s0p (JESD 51-3) with 100 mm² cooling area RthJA,300 – – 180 K/W JEDEC 1s0p (JESD 51-3) with 300 mm² cooling area 8 Revision 1.1 2018-12-3 BCR602 hot plug IC with dimming Operating conditions 5 Operating conditions Table 5 Operating conditions Parameter Symbol Values Min. Typ. Unit Note or test condition Max. Junction temperature TJ –40 – 160 °C – Supply voltage VS 0 – 60 V – Datasheet 9 Revision 1.1 2018-12-3 BCR602 hot plug IC with dimming Electrical characteristics 6 Electrical characteristics Note: All parameters are measured at TA = 25°C, VS = 45 V unless otherwise specified. Note: ILED,target current is the undimmed current at a VSENSE voltage drop of 400 mV typical. Table 6 DC characteristics Parameter Symbol Values Min. Typ. Unit Note or test condition Max. IC system Supply voltage VS 8 – 60 V Operational supply voltage range Supply voltage brownin VS,bi – – 8 V – Supply voltage brownout VS,bo 6.7 – – V – Supply current IS -2.2 – - mA IDRV, source = 0 A Sense voltage Vsense 388 400 412 mV Closed loop reference voltage of pin VSENSE, ILED = Vsense / Rsense – 3 % Closed loop LED current accuracy without dimming at VMFIO = 3.3 V 10 – - mA Source current range of pin DRV to drive NPN base/NMOS gate LED current accuracy LED current accuracy ILED, acc / -3 ILED, acc, target Driver Driver source current capability, DC IDRV, Driver sink current capability, DC IDRV, sink - – -10 mA Sink current range of pin DRV to discharge NPN base/NMOS gate Driver source voltage VDRV 4.5 5 5.5 V Max. output voltage of pin DRV source Dimming analog MFIO turn-off range VMFIO, off 0 – 0.1 V Threshold for analog dimming to off MFIO turn-on range VMFIO,on 0.17 – 0.195 V Threshold for analog dimming to on MFIO full current range VMFIO, 100% 3.3 – 5 V MFIO range always at 100% ILED MFIO output source current IMFIO, 18 20 22 µA For RSET < 10 kΩ, in parallel internal pulldown RMFIO connected, refer to Figure 5 MFIO output voltage VMFIO, – 4.2 – V MFIO output voltage at MFIO open setcs setcs Datasheet 10 Revision 1.1 2018-12-3 BCR602 hot plug IC with dimming Electrical characteristics Table 6 DC characteristics (continued) Parameter Symbol Values Min. Typ. Unit Note or test condition Max. MFIO pull-down resistor RMFIO 228 285 342 kΩ Internal pull-down resistor at pin MFIO MFIO dimming range VMFIO, 0.2 – 3.3 V Analog dimming range of the LED current – 3 – % Minimum dimming LED current level at MFIOdim = 0.15 V -20 – 20 % Max variation at minimum MFIO dimming level dim Analog LED dimming ILEDmin, ana / ILEDmin, target LED current chip to chip variation at selected dimming level -10 10 Max variation for dimming level higher than minimum Dimming PWM1) MFIO PWM frequency fPWM – – 3.5 kHz Maximum supported PWM frequency at pin MFIO, external switch Qg= 8.7 nC Minimum PWM duty cycle ILEDmin, PWM / ILED, – 1 – % Minimum LED current dimming ratio by a PWM signal connected to pin MFIO, external switch Qg= 8.7 nC 2.9 – – µs Minimum LED PWM digital pulse width between 0 V and 3.3 V, external switch Qg= 8.7 nC target Minimum pulse width tduty, on Overtemperature protection OTP Overtemperature protection threshold, turn on TOTP, on 140 – 155 °C Junction threshold temperature to trigger overtemperature protection in standby, IDRV = 0 mA and VS = 45 V Overtemperature protection threshold, turn off TOTP, off 120 – 135 °C Junction threshold temperature to exit overtemperature protection in standby, IDRV = 0 mA and VS = 45 V 1 Tested at 0.5 kHz and 3.5 kHz. Datasheet 11 Revision 1.1 2018-12-3 BCR602 hot plug IC with dimming Electrical characteristics Table 6 DC characteristics (continued) Parameter Symbol Values Min. Sense voltage in OTP case Vsense, OTP / Vsense, Typ. Unit Note or test condition Max. – 30 – % Reduction factor at pin VSENSE (nominal 400 mV) if OTP has been triggered, ILED, OTP = Vsense,OTP / Rsense TOTP, Hys – 20 – °C – Vsense, HP – 8 – mV VSENSE level at which hot plug event is detected target Overtemperature protection hysteresis Hot plug Hot plug VSENSE threshold Datasheet 12 Revision 1.1 2018-12-3 BCR602 hot plug IC with dimming Package information 7 Package information Dimensions in mm. 1) 1) 0.15 C A-B 2x 1.25±0.2 (0.85) 8° 0°. . 0.2 0.15 C D 2x +0.075 C 0.1 C SEATING COPLANARITY PLANE 0.4±0.1 1.6 0.45±0.1 1 INDEX MARKING B 0.2 C 6x 2.8 D C A B 6x BOTTOM VIEW A 6 0.25 GAUGE PLANE 2.9 0.125-0.045 0.1±0.05 STAND OFF 1.15±0.15 Note: 4 4 6 3 3 1 0.95 1) DOES NOT INCLUDE PLASTIC OR METAL PROTRUSION OF 0.15 MAX. PER SIDE ALL DIMENSIONS ARE IN UNITS MM THE DRAWING IS IN COMPLIANCE WITH ISO 128 & PROJECTION METHOD 1 [ Figure 7 Datasheet ] Package outline PG-SOT23-6 13 Revision 1.1 2018-12-3 BCR602 hot plug IC with dimming References 8 References Revision history Document version Date of release Description of changes v1.0 2018-11-23 • Public release v1.1 2018-12-03 • Parameter update Datasheet 14 Revision 1.1 2018-12-3 Trademarks All referenced product or service names and trademarks are the property of their respective owners. Edition 2018-12-3 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 IFX-rjb1519293082418 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. It is the responsibility of customer’s technical departments to evaluate the suitability of the product for the intended application and the completeness of the product information given in this document with respect to such application. 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