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MAX16839 Dataheets PDF



Part Number MAX16839
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description Linear High-Brightness LED Driver
Datasheet MAX16839 DatasheetMAX16839 Datasheet (PDF)

19-4746; Rev 1; 5/10 www.DataSheet4U.com TION KIT EVALUA BLE AVAILA High-Voltage, Linear High-Brightness LED Driver with Open-LED Fault Detect General Description The MAX16839 programmable current regulator operates from a 5V to 40V input voltage range and features an open-drain, constant-current sink output capable of sinking up to 100mA. The MAX16839 is well suited for automotive applications and other applications that require a general-purpose linear LED driver. The device directly withst.

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19-4746; Rev 1; 5/10 www.DataSheet4U.com TION KIT EVALUA BLE AVAILA High-Voltage, Linear High-Brightness LED Driver with Open-LED Fault Detect General Description The MAX16839 programmable current regulator operates from a 5V to 40V input voltage range and features an open-drain, constant-current sink output capable of sinking up to 100mA. The MAX16839 is well suited for automotive applications and other applications that require a general-purpose linear LED driver. The device directly withstands automotive load dump events of up to 45V. An onboard pass element minimizes external component count while providing Q5% output current accuracy. The MAX16839 includes a dimming input that controls the duty cycle of the output current, allowing a wide LED dimming range. In addition, the dimming input functions as an on/off control of the output current. In multiple LED string applications, the dimming input synchronizes the LED current-sink turn-on, ensuring simultaneous brightness in LED strings. Additional features include thermal and open-LED protection and an open-LED fault-detection output. In multiple LED string applications where all FLTS pins are connected together, an open-LED detection in one LED string turns off all the strings simultaneously. Open-LED protection also features fault memory, to avoid LED flashing during subsequent power-up cycles. The MAX16839 is available in thermally enhanced, 6–pin TDFN-EP and 8-pin SO-EP packages and is specified over the -40NC to +125NC automotive temperature range. S 5V to 40V Operating Range S Integrated 2I Open-Drain Pass Transistor S 15mA to 100mA Programmable LED Current S PWM Dimming S Open-LED Fault Detection S Open-LED Fault Event Status Memory S LED Open-Fault Detect Latches Off Multiple LED Features MAX16839 Strings S Multichip Synchronized LED Current Sink S ±5% LED Current Accuracy S -40NC to +125NC Operating Temperature Range S Thermal Protection S Undervoltage Lockout S 6-Pin TDFN-EP and 8-Pin SO-EP Packages Ordering Information PART MAX16839ATT+ MAX16839ASA+ *EP = Exposed pad. TEMP RANGE -40NC to +125NC -40NC to +125NC PIN-PACKAGE 6 TDFN-EP* 8 SO-EP* +Denotes a lead(Pb)-free/RoHS-compliant package. Applications Automotive Exterior: Turn Signal Light, Brake Light, Tail and Marker Lights Automotive Interior: Cluster and Warning Lights, Dome and Map Lights Truck, Train, Airplane, and Emergency Car LED Lighting General Lighting: Signage, LED Lamps VBAT Typical Application Circuit VIN = 5V TO 40V REVERSE PROTECTION DIODE ILED = 100mA CIN = 0.01FF LEDs IN DIM SINK MAX16839 FLTS CFLTS = 0.1FF GND CS RCS = 2I Pin Configurations appear at end of data sheet. ________________________________________________________________ Maxim Integrated Products   1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. www.DataSheet4U.com High-Voltage, Linear High-Brightness LED Driver with Open-LED Fault Detect MAX16839 ABSOLUTE MAXIMUM RATINGS (Voltages are specified with respect to GND.) IN, SINK. .................................................................-0.3V to +45V FLTS.......................................................................-0.3V to +18V DIM...........................................................................-0.3V to +6V CS. .........................................................................-0.3V to +0.5V Continuous Current into SINK and CS..............................120mA Continuous Power Dissipation (TA = +70NC) 6-Pin TDFN (derate 23.8mW/NC above +70NC)......1904.8mW Junction-to-Case Thermal Resistance (BJC) (Note 1)....9NC/W Junction-to-Ambient Thermal Resistance (BJA) (Note 1). .. 42NC/W 8-Pin SO (derate 18.9mW/NC above +70NC). ..........1509.4mW Junction-to-Case Thermal Resistance (BJC) (Note 1)....5NC/W Junction-to-Ambient Thermal Resistance (BJA) (Note 1). ............................................53NC/W Operating Temperature Range......................... -40NC to +125NC Junction Temperature......................................................+150NC Storage Temperature Range. ............................ -65NC to +150NC Lead Temperature (soldering, 10s).................................+300NC Soldering Temperature (reflow).......................................+260NC Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to http://www.maxim-ic.com/thermal-tutorial. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability..


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