mlx10801 Melexis Company, mlx10801 Datasheet
mlx10801
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mlx10801 Summary of contents
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... MLX10801 MLX10801 General Description The MLX10801 is a multi-purpose LED driver for high power LEDs designed for automotive applications. A lot of adjustment possibilities allow for the design of different LED applications using only a few external components. The circuit is load dump protected for a 40V load dump pulse. ...
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... Typical application data............................................................................................. 5 1.1. LED driver applications .................................................................................... 5 1.1.1. Complete schematic LED driver diagram .................................................... 5 1.1.2. Minimum schematic LED driver diagram ..................................................... 5 1.1.3. LED driver application notes ........................................................................ 6 1.1.3.1. LED driver application notes for MLX10801 in MLPD8 5x5 .................. 7 1.2. Coil driver applications ..................................................................................... 8 1.2.1. Coil driver schematic diagram ..................................................................... 8 1.2.2. Coil driver application notes......................................................................... 8 1.3. Electronic fuse applications.............................................................................. 9 1.3.1. ...
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... Disclaimer ............................................................................................................... 41 3901010801 Author: TFR revised: RAH/SSZ IC specification Power LED driver for automotive applications Power saving low side coil driver Page 3/41 MLX10801 Electronic fuse Rev 021 14/July/05 ...
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... POR Programmable devider: not used;/1;/2;/4;/8;/16;/32 3 Bit devider selection for delay generation after POR Hysteresis VDD DAC EE- Latch DSENSE Page 4/41 MLX10801 Power saving low side coil driver Electronic fuse POR Debouncing 1us Start CLK 6 Bit Free running counter Delay Stop Monoflop 6 Bit Compare register as ...
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... TEST RSENSE CALIB DSENSE 47k VS CONTR GND DRVOUT TEST RSENSE CALIB DSENSE Page 5/41 MLX10801 Electronic fuse optional Cap for EMC reduction Calibration points Diode only needed, in case temperature shut off is done with an external diode temperature sensor Calibration points Rev 021 14/July/05 ...
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... LED driver application notes The MLX10801 is optimised for the use of low cost coils. For a standard application with 1 LED and an average current of 350mA a coil of about 100µH…470µH having ≤ 1R omic resistance should be chosen. The sense resistor should have a value between 0.47R…1R / 250mW. ...
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... MLX10801 in MLPD8 5x5 The MLX10801 assembled in a MLPD8 5x5 package allows to take out of the IC a higher average and a higher peak current. The pre calibration data of the MLX10801 in all types of packages is identical. In order to take advantage of the bigger output current capability without changing the ICs pre trimmed parameter set, the user can change the values of the coil and the sense resistor ...
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... Author: TFR revised: RAH/SSZ IC specification Power LED driver for automotive applications Power saving low side coil driver 47k VS CONTR RF COIL GND DRVOUT TEST RSENSE CALIB DSENSE RSENSE Page 8/41 MLX10801 Electronic fuse optional cap for EMC reduction Calibration points CF Rev 021 14/July/05 ...
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... Instead of using RF and CF, “parasitic switching” can also be avoided by a well chosen parameter set (see also chapter 8.3) and a well designed PCB that avoids switching oscillations. Note: Melexis designed in a debouncing time of 1µs to the internal comparator due to the fact that the MLX10801 can be used with a wide range of inductances. 1.3. Electronic fuse applications 1 ...
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... RSENSE External sense resistor pin for peak current detection 7 DRVOUT Driver output 8 CONTR Light control input, ON/OFF or dimming via PWM signal, sleep mode possibility 3901010801 Author: TFR revised: RAH/SSZ IC specification Power LED driver for automotive applications Power saving low side coil driver Page 10/41 MLX10801 Electronic fuse Rev 021 14/July/05 ...
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... Maximum peak current on DRVOUT for MLX10801 in SOIC8 Maximum average current on DRVOUT for MLX10801 in SOIC8 Maximum peak current on DRVOUT for MLX10801 in MLPD8 5x5 Maximum average current on DRVOUT for MLX10801 in MLPD8 5x5 Maximum junction temperature Lifetime Dynamic In case of EE Latch write Storage temperature Ambient temperature range ...
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... Thermal resistance junction to ambient for MLX10801 in SOIC8 Thermal resistance junction to ambient for MLX10801 in MLPD8 5x5 (Under consideration of the thermal application notes for MLPD packages published under www.carsem.com *) The parameters are only valid, in case the specified rth is insured by having a suitable heat sink capability on the PCB ...
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... With 6V VS > vporh analog parameters can not be guaranteed. Note: The correct operation of the MLX10801 as a switching mode power supply for voltages lower than the nominal supply voltage is dependent on the forward bias voltage of the used LED. The user must ensure that at low supply voltage the peak current threshold voltage on the RSENSE pin can be reached in order to keep the switching principle working ...
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... DRVOUT is -5 switched off specified under 14.1 specified under 14 DSENSE related parameters CONTR=0 -5 CONTR=1 80 (current can only be adjusted by Melexis during final parts test) specified under 14.1 specified under 14 Page 14/41 MLX10801 Electronic fuse 5 µA 120 µ ...
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... Power LED driver for automotive applications Power saving low side coil driver idsense trimmed 630 idsense trimmed 460 CONTR related parameters -5 0.6*vdd vdd=5V 3 0.3*vdd vdd=5V 1.5 DRVOUT related parameters -5 CALIB related parameters 5 Page 15/41 MLX10801 Electronic fuse 660 690 mV 490 520 0.65*vdd 0.7*vdd V 3.25 3.5 V 0.35*vdd 0.4*vdd V 1 ...
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... EMI requirements. The MLX10801 is an ESD sensitive device and has to be handled according to EN100015 part 1. The MLX10801 will fulfil the requirements in the application according to the specification and to DIN 40839 part 1. The MLX10801 is designed with ESD protection >1000V HBM according to MIL883D. ...
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... V vspulse4 - vapulse4 -5 -2,5 V vpulse5 26,5 86,5 V Page 17/41 MLX10801 Electronic fuse Test condition, Functional status 5000 pulses, functional state C 5000 pulses functional state C 1h, functional state A 1h, functional state A 1 pulse, functional state C 1 pulse clamped to <=40V functional state C, Rev 021 ...
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... Test pulse 2 Ri=10R 0.5…5s V 50µs 1µs 90% vpulse2 10% 12V 200ms 3901010801 Author: TFR revised: RAH/SSZ IC specification Power LED driver for automotive applications Power saving low side coil driver t t Page 18/41 MLX10801 Electronic fuse Rev 021 14/July/05 ...
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... Test Pulse 50R V 100µs vpulse3b 12V 10ms 90ms 90% 10% 3901010801 Author: TFR revised: RAH/SSZ IC specification Power LED driver for automotive applications Power saving low side coil driver t t 5ns 100ns Page 19/41 MLX10801 Electronic fuse Rev 021 14/July/05 ...
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... Ri = 0.5…4R (clamped to 40V during test) V 90% vpulse5 40V 10% 12V tr = 0.1...10ms td = 40...400ms 3901010801 Author: TFR revised: RAH/SSZ IC specification Power LED driver for automotive applications vapulse4 100 ms t 0.5-20s Pulse 5 Pulse 5 at device t Page 20/41 MLX10801 Power saving low side coil driver Electronic fuse Rev 021 14/July/05 ...
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... A resistor dissipates power which is transformed to heat - Efficiency is reduced drastically - The light output of the LED is dependent on the supply and the temperature of the resistor - The MLX10801 avoids this disadvantages as the following calculation shows (all values according to the Melexis demo board EVB10801,standard configuration with L=220µH, R Supposed 13.8V bat V ≈ ...
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... By using this jitter mode feature, the EMI behaviour of the complete module is improved, due to the variation of the otherwise fixed switching frequency. Please refer to 14.2 for additional information. 3901010801 Author: TFR revised: RAH/SSZ IC specification Power LED driver for automotive applications Power saving low side coil driver Page 22/41 MLX10801 Electronic fuse t Rev 021 14/July/05 ...
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... EMI behaviour and maximum allowed LED current. By varying these parameters, an optimum can be found for virtually every application. 3901010801 Author: TFR revised: RAH/SSZ IC specification Power LED driver for automotive applications Power saving low side coil driver tmon2 tmon1 Page 23/41 MLX10801 Electronic fuse t Rev 021 14/July/05 ...
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... Bits [14:10 ;TMonoflop time. Bits [9:4 ;Peak current. Bits [3:0 3901010801 Author: TFR revised: RAH/SSZ IC specification Power LED driver for automotive applications Power saving low side coil driver Page 24/41 MLX10801 Electronic fuse Rev 021 14/July/05 ...
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... The lower the supply voltage, the lower the switching frequency. Furthermore, the supply current is affected by supply changes: with an increasing supply voltage the average supply current decreases. Melexis delivers the MLX10801 with a pre-trimmed parameter set according to chapter 15, where an average switching frequency for a supply voltage of 13.8V is given. ...
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... It can only be switched on again by a power on reset to the system or by reducing the module temperature. 3901010801 Author: TFR revised: RAH/SSZ IC specification Power LED driver for automotive applications Power saving low side coil driver tmon Page 26/41 MLX10801 Electronic fuse t Rev 021 14/July/05 ...
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... For a system that is designed for thermal conditions, temperature shutdown may not be needed. In this case, the temperature shutdown can be disabled completely. 13. Load dump protection The MLX10801 is protected against 40V load dump, in case the application proposals described under 1 are used. 14. The calibration 14.1. The internal control register The internal control register consists of the following bits ...
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... Bit set Pseudo random generator is applied to the monoflop time generation. Internal temperature diode sensor is used at DSENSE. Page 28/41 MLX10801 Power saving low side coil driver Electronic fuse vrsensemax +10 % +10 % +10 % vdsensetyp vdsensemax 300mV +10 % 310mV +10 % 600mV +10 % Rev 021 ...
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... Page 29/41 MLX10801 Power saving low side coil driver Electronic fuse Monoflop-Time=f(code) Monoflop-Time [us] Jitter min [us] Jitter max [us Code 1/Monoflop-Time=f(code) 1/Monoflop-Time [kHz] 1/Jitter max [kHz] 1/Jitter min [kHz Code Rev 021 14/July/05 ...
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... It is not possible to write a single bit to the EEPROM. A programming cycle always consists of ALL bits of the scan chain. 3901010801 Author: TFR revised: RAH/SSZ IC specification Power LED driver for automotive applications Power saving low side coil driver Page 30/41 MLX10801 Electronic fuse Rev 021 14/July/05 ...
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... IC specification Power LED driver for automotive applications Power saving low side coil driver Latch data and try the application Page 31/41 MLX10801 Electronic fuse Scan in of new data Latch and try Data is O.K. and will be data in the programmed to the EE- application Intervall of 4ms ...
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... Peak current threshold voltage - Monoflop (stays deselected) - Delay generation after power on reset (is switched off) - Jitter (stays disabled) - 3901010801 Author: TFR revised: RAH/SSZ IC specification Power LED driver for automotive applications Power saving low side coil driver Page 32/41 MLX10801 Electronic fuse Rev 021 14/July/05 ...
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... Author: TFR revised: RAH/SSZ IC specification Power LED driver for automotive applications Power saving low side coil driver Parameter iavg fdrvout Delay generation switched off Jitter mode enabled for thermal IC protection Page 33/41 MLX10801 Electronic fuse Type Unit mA 350 kHz 24 Rev 021 14/July/05 ...
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... Mechanical Data 16.1. Mechanical data of the MLX10801 in SOIC8 MIN. A .061 A1 .004 A0 .055 B .0138 C .0075 D .189 E .150 e H .230 h .010 L .016 .085 3901010801 Author: TFR revised: RAH/SSZ IC specification Power LED driver for automotive applications Power saving low side coil driver DIMENSIONS INCHES NOM ...
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... Mechanical data of the MLX10801 in MLPD8 5x5 3901010801 Author: TFR revised: RAH/SSZ IC specification Power LED driver for automotive applications Power saving low side coil driver Page 35/41 MLX10801 Electronic fuse Rev 021 14/July/05 ...
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... Author: TFR revised: RAH/SSZ IC specification Power LED driver for automotive applications Power saving low side coil driver Page 36/41 MLX10801 Electronic fuse Rev 021 14/July/05 ...
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... Author: TFR revised: RAH/SSZ IC specification Power LED driver for automotive applications Power saving low side coil driver Page 37/41 MLX10801 Electronic fuse Rev 021 14/July/05 ...
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... Various lead free generic qualifications are running, current results on request. For more information on Melexis lead free statement see quality page at our website: http://www.melexis.com/html/pdf/MLXleadfree-statement.pdf 3901010801 Author: TFR revised: RAH/SSZ IC specification Power LED driver for automotive applications Power saving low side coil driver Page 38/41 MLX10801 Electronic fuse Rev 021 14/July/05 ...
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... Changes due to coil driver applications and electronic fuse applications 2 tbds have been defined 5 1 Device number MLX10801 assigned 2 Typing mistakes corrected 3 Maximum supply ratings now at 28V for industrial micro valve applications 4 tssettle set to 300us, -vbe replaced to –0.3V, ihv (typical) removed ...
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... Melexis standard soldering information exchanged 21 1 Specification for the package option MLX10801 in MLPD8 5x5 has been worked in, as well. For both versions there is now only one specification valid. 2 Exchange of SOIC8 package drawings for better visibility 3 Absolute maximum ratings: 36V for max 2h added as condition, vdrvoutmax re- ...
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... For the latest version of this document our website at: www.melexis.com Or for additional information contact Melexis Direct: Europe and Japan: All other locations: Phone: + Phone: +1 603 223 2362 E-mail: sales_europe@melexis.com E-mail: sales_usa@melexis.com Page 41/41 MLX10801 Electronic fuse QS9000, VDA6.1 and ISO14001 Certified Rev 021 14/July/05 ...