The MAX16813 high-efficiency, high-brightness LED (HB LED) driver provides four integrated LED current-sink channels. An integrated current-mode switching controller drives a DC-DC converter that provides the necessary voltage to multiple strings of HB LEDs. The device accepts a wide 4.75V to 40V input voltage range and withstands direct automotive load-dump events. The wide input range allows powering HB LEDs for small- to medium-sized LCD displays in automotive and general lighting applications.An internal current-mode switching DC-DC controller supports boost or SEPIC topologies and operates in an adjustable frequency range between 200kHz and 2MHz. An integrated spread-spectrum mode helps reduce EMI. Current-mode control with programmable slope compensation provides fast response and simplifies loop compensation. An adaptive output-voltage control scheme minimizes power dissipation in the LED current-sink paths. The device has a separate p-channel drive (PGATE) pin that is used for output undervoltage protection. Whenever the output falls below the threshold, the external p-MOSFET is latched off, disconnecting the input source. Cycling the EN or the input supply is required to restart the converter. The external p-MOSFET is off when the EN pin is below 0.3V (typ). The shutdown current is 1µA (typ) at an input voltage of 12V.The device consists of four identical linear current-sink channels, adjustable from 20mA to 150mA with an accuracy of ±3% using a single external resistor. Multiple channels can be connected in parallel to achieve higher current per LED string. The device also features a unique pulsed dimming control through a logic input (DIM), with minimum pulse width as low as 500ns. Protection features include output overvoltage, open-LED detection and protection, programmable shorted LED detection and protection, output undervoltage protection and detection, and overtemperature protection. The device operates over the -40°C to +125°C automotive temperature range. The MAX16813 is available in 20-pin (6.5mm x 4.4mm) TSSOP and 20-pin (4mm x 4mm) TQFN packages.ApplicationsArchitectural, Industrial, and Ambient LightingAutomotive Displays LED BacklightsAutomotive RCL, DRL, Front Position, and Fog LightsLCD TV and Desktop Display LED Backlights

The MAX16813 high-efficiency, high-brightness LED (HB LED) driver provides four integrated LED current-sink channels. An integrated current-mode switching controller drives a DC-DC converter that provides the necessary voltage to multiple strings of HB LEDs. The device accepts a wide 4.75V to 40V input voltage range and withstands direct automotive load-dump events. The wide input range allows powering HB LEDs for small- to medium-sized LCD displays in automotive and general lighting applications.An internal current-mode switching DC-DC controller supports boost or SEPIC topologies and operates in an adjustable frequency range between 200kHz and 2MHz. An integrated spread-spectrum mode helps reduce EMI. Current-mode control with programmable slope compensation provides fast response and simplifies loop compensation. An adaptive output-voltage control scheme minimizes power dissipation in the LED current-sink paths. The device has a separate p-channel drive (PGATE) pin that is used for output undervoltage protection. Whenever the output falls below the threshold, the external p-MOSFET is latched off, disconnecting the input source. Cycling the EN or the input supply is required to restart the converter. The external p-MOSFET is off when the EN pin is below 0.3V (typ). The shutdown current is 1µA (typ) at an input voltage of 12V.The device consists of four identical linear current-sink channels, adjustable from 20mA to 150mA with an accuracy of ±3% using a single external resistor. Multiple channels can be connected in parallel to achieve higher current per LED string. The device also features a unique pulsed dimming control through a logic input (DIM), with minimum pulse width as low as 500ns. Protection features include output overvoltage, open-LED detection and protection, programmable shorted LED detection and protection, output undervoltage protection and detection, and overtemperature protection. The device operates over the -40°C to +125°C automotive temperature range. The MAX16813 is available in 20-pin (6.5mm x 4.4mm) TSSOP and 20-pin (4mm x 4mm) TQFN packages.ApplicationsArchitectural, Industrial, and Ambient LightingAutomotive Displays LED BacklightsAutomotive RCL, DRL, Front Position, and Fog LightsLCD TV and Desktop Display LED Backlights

The MAX16823 three-channel LED driver operates from a 5.5V to 40V input voltage range and delivers up to 100mA per channel to one or more strings of high-brightness LEDs (HB LEDs). Each channel's current is programmable using an external current-sense resistor in series with the LEDs. Three DIM inputs allow a wide range of independent pulsed dimming in addition to providing the on and off control of the outputs. Wave-shaping circuitry reduces EMI while providing fast turn-on and turn-off times.The MAX16823 is well suited for automotive applications requiring a high-voltage input and is able to withstand load-dump events up to 45V. On-board pass elements minimize external components while providing ±5% LED current accuracy. Additional features include an active-high, open-drain LEDGOOD output for open LED detection, a +3.4V (±5%) regulated output with 4mA output current capability, short-circuit and thermal protections.The MAX16823 is available in thermally enhanced 5mm x 5mm, 16-pin TQFN-EP and 16-pin TSSOP-EP packages and is specified over the -40°C to +125°C automotive temperature range.ApplicationsArchitecture and Industrial LightingAutomotive Exterior: Rear Combination Lights (RCLs), CHMSLAutomotive Interior: RGB Ambient Lighting, Cluster Lighting, and LCD BacklightingEmergency Vehicle Warning LightsNavigation and Marine Indicators

The MAX16823 three-channel LED driver operates from a 5.5V to 40V input voltage range and delivers up to 100mA per channel to one or more strings of high-brightness LEDs (HB LEDs). Each channel's current is programmable using an external current-sense resistor in series with the LEDs. Three DIM inputs allow a wide range of independent pulsed dimming in addition to providing the on and off control of the outputs. Wave-shaping circuitry reduces EMI while providing fast turn-on and turn-off times.The MAX16823 is well suited for automotive applications requiring a high-voltage input and is able to withstand load-dump events up to 45V. On-board pass elements minimize external components while providing ±5% LED current accuracy. Additional features include an active-high, open-drain LEDGOOD output for open LED detection, a +3.4V (±5%) regulated output with 4mA output current capability, short-circuit and thermal protections.The MAX16823 is available in thermally enhanced 5mm x 5mm, 16-pin TQFN-EP and 16-pin TSSOP-EP packages and is specified over the -40°C to +125°C automotive temperature range.ApplicationsArchitecture and Industrial LightingAutomotive Exterior: Rear Combination Lights (RCLs), CHMSLAutomotive Interior: RGB Ambient Lighting, Cluster Lighting, and LCD BacklightingEmergency Vehicle Warning LightsNavigation and Marine Indicators

The MAX16823 three-channel LED driver operates from a 5.5V to 40V input voltage range and delivers up to 100mA per channel to one or more strings of high-brightness LEDs (HB LEDs). Each channel's current is programmable using an external current-sense resistor in series with the LEDs. Three DIM inputs allow a wide range of independent pulsed dimming in addition to providing the on and off control of the outputs. Wave-shaping circuitry reduces EMI while providing fast turn-on and turn-off times.The MAX16823 is well suited for automotive applications requiring a high-voltage input and is able to withstand load-dump events up to 45V. On-board pass elements minimize external components while providing ±5% LED current accuracy. Additional features include an active-high, open-drain LEDGOOD output for open LED detection, a +3.4V (±5%) regulated output with 4mA output current capability, short-circuit and thermal protections.The MAX16823 is available in thermally enhanced 5mm x 5mm, 16-pin TQFN-EP and 16-pin TSSOP-EP packages and is specified over the -40°C to +125°C automotive temperature range.ApplicationsArchitecture and Industrial LightingAutomotive Exterior: Rear Combination Lights (RCLs), CHMSLAutomotive Interior: RGB Ambient Lighting, Cluster Lighting, and LCD BacklightingEmergency Vehicle Warning LightsNavigation and Marine Indicators

The MAX16824/MAX16825 three-channel LED drivers operate over a 6.5V to 28V input voltage range. These devices provide three open-drain constant-current-sinking outputs that are rated to 36V and deliver up to 150mA of current to each string of high-brightness LEDs (HB LEDs). The current at each output is programmable by means of an external current-sense resistor. The MAX16824 features three PWM inputs that control the duty cycle of the output current, allowing a wide LED dimming range to be implemented. The PWM inputs also function as on/off control for each corresponding output. The MAX16825 offers a 4-wire serial interface, a 3-bit shift register, and a 3-bit transparent latch. The serial interface allows a microcontroller to configure the output channels using four inputs (DIN, CLK, LE, active-low OE) and a data output (DOUT). DOUT allows multiple drivers to be cascaded and operated together.The MAX16824/MAX16825's on-board pass elements minimize the need for external components, while at the same time, providing ±5% LED current accuracy. Additional features include a +5V (±5%) regulated output with 4mA output current capability and thermal protection.The MAX16824/MAX16825 are available in a thermally enhanced 16-pin TSSOP-EP package and specified over the -40°C to +125°C temperature range.ApplicationsArchitectural and Decorative LightingAutomotive LightingIndoor and Outdoor LED Video DisplaysIndustrial LightingLCD Display BacklightingMood Lighting

The MAX20050–MAX20053 are high-brightness LED (HBLED) drivers for automotive exterior lighting applications.Consisting of a fully synchronous step-down converterwith integrated MOSFETs, the devices are capable ofdriving a series string of LEDs at up to 2A, with a minimumnumber of external components. The MAX20050/MAX20052 utilize internal loop compensation to minimizecomponent count, while the MAX20051/MAX20053/MAX20053D useexternal compensation for full flexibility.The wide 4.5V to 65V input supply range supports extremeautomotive cold crank and load-dump conditions. A low- andhigh-switching frequency option (400kHz or 2.1MHz)provides the designer with the flexibility to optimize forsolution size or efficiency, while avoiding interferencewithin the AM band. Spread spectrum provides furtheroptions for the designer to reduce EMI at the system level.The MAX20050/MAX20051 have an internal switchingfrequency of 400kHz, while the MAX20052/MAX20053have an internal switching frequency of 2.1MHz. In addition,the MAX20051B has spread spectrum disabled.High-side current regulation means only a singleconnection to the LED string is required; grounding of thestring can be done locally. In addition to PWM dimming,the ICs provide analog dimming using the REFI pin. Fullscalecurrent regulation accuracy is ±2.5%, while theaccuracy is ±8% at 10% of full-scale over the full temperaturerange of -40°C to +125°C. A 5V, 10mA LDO output isavailable for biasing other circuits.Fault-protection mechanisms include output overload,short-circuit, and device overtemperature protection. Thedevices are specified for operation over the full -40°C to+125°C temperature range and are available in thermallyenhanced 12-pin (3mm x 3mm) TDFN and 14-pin (5mm x4.4mm) TSSOP packages with an exposed pad. Design Solution: Driver Monitoring Systems Need a New Breed of IR-LEDDrivers ›ApplicationsClearance Lamps (CLLs)Commercial, Industrial, and Architectural LightingCorner Lamps (CLs)Daytime Running Lamps (DRLs)Driver Monitoring Systems (DMS)Fog LampsHead LampsRear Lamps

The MAX20050–MAX20053 are high-brightness LED (HBLED) drivers for automotive exterior lighting applications.Consisting of a fully synchronous step-down converterwith integrated MOSFETs, the devices are capable ofdriving a series string of LEDs at up to 2A, with a minimumnumber of external components. The MAX20050/MAX20052 utilize internal loop compensation to minimizecomponent count, while the MAX20051/MAX20053/MAX20053D useexternal compensation for full flexibility.The wide 4.5V to 65V input supply range supports extremeautomotive cold crank and load-dump conditions. A low- andhigh-switching frequency option (400kHz or 2.1MHz)provides the designer with the flexibility to optimize forsolution size or efficiency, while avoiding interferencewithin the AM band. Spread spectrum provides furtheroptions for the designer to reduce EMI at the system level.The MAX20050/MAX20051 have an internal switchingfrequency of 400kHz, while the MAX20052/MAX20053have an internal switching frequency of 2.1MHz. In addition,the MAX20051B has spread spectrum disabled.High-side current regulation means only a singleconnection to the LED string is required; grounding of thestring can be done locally. In addition to PWM dimming,the ICs provide analog dimming using the REFI pin. Fullscalecurrent regulation accuracy is ±2.5%, while theaccuracy is ±8% at 10% of full-scale over the full temperaturerange of -40°C to +125°C. A 5V, 10mA LDO output isavailable for biasing other circuits.Fault-protection mechanisms include output overload,short-circuit, and device overtemperature protection. Thedevices are specified for operation over the full -40°C to+125°C temperature range and are available in thermallyenhanced 12-pin (3mm x 3mm) TDFN and 14-pin (5mm x4.4mm) TSSOP packages with an exposed pad. Design Solution: Driver Monitoring Systems Need a New Breed of IR-LEDDrivers ›ApplicationsClearance Lamps (CLLs)Commercial, Industrial, and Architectural LightingCorner Lamps (CLs)Daytime Running Lamps (DRLs)Driver Monitoring Systems (DMS)Fog LampsHead LampsRear Lamps

The MAX20050–MAX20053 are high-brightness LED (HBLED) drivers for automotive exterior lighting applications.Consisting of a fully synchronous step-down converterwith integrated MOSFETs, the devices are capable ofdriving a series string of LEDs at up to 2A, with a minimumnumber of external components. The MAX20050/MAX20052 utilize internal loop compensation to minimizecomponent count, while the MAX20051/MAX20053/MAX20053D useexternal compensation for full flexibility.The wide 4.5V to 65V input supply range supports extremeautomotive cold crank and load-dump conditions. A low- andhigh-switching frequency option (400kHz or 2.1MHz)provides the designer with the flexibility to optimize forsolution size or efficiency, while avoiding interferencewithin the AM band. Spread spectrum provides furtheroptions for the designer to reduce EMI at the system level.The MAX20050/MAX20051 have an internal switchingfrequency of 400kHz, while the MAX20052/MAX20053have an internal switching frequency of 2.1MHz. In addition,the MAX20051B has spread spectrum disabled.High-side current regulation means only a singleconnection to the LED string is required; grounding of thestring can be done locally. In addition to PWM dimming,the ICs provide analog dimming using the REFI pin. Fullscalecurrent regulation accuracy is ±2.5%, while theaccuracy is ±8% at 10% of full-scale over the full temperaturerange of -40°C to +125°C. A 5V, 10mA LDO output isavailable for biasing other circuits.Fault-protection mechanisms include output overload,short-circuit, and device overtemperature protection. Thedevices are specified for operation over the full -40°C to+125°C temperature range and are available in thermallyenhanced 12-pin (3mm x 3mm) TDFN and 14-pin (5mm x4.4mm) TSSOP packages with an exposed pad. Design Solution: Driver Monitoring Systems Need a New Breed of IR-LEDDrivers ›ApplicationsClearance Lamps (CLLs)Commercial, Industrial, and Architectural LightingCorner Lamps (CLs)Daytime Running Lamps (DRLs)Driver Monitoring Systems (DMS)Fog LampsHead LampsRear Lamps

The MAX20444B is a 4-channel backlight driver with boostcontroller for automotive displays. The integrated currentoutputs can sink up to 130mA LED current each. Thedevice accepts a wide 4.5V to 36V input voltage rangeand withstands direct automotive load-dump events.The internal current-mode switching DC-DC controllersupports boost or SEPIC topologies and operates in thefrequency range 400kHz to 2.2MHz. Integrated spread spectrumhelps reduce EMI. An adaptive output-voltagecontrol scheme minimizes power dissipation in the LEDcurrent-sink paths.The device features I2C-controlled pulse-widthmodulation (PWM) dimming and hybrid dimming. In eithercase the minimum pulse width is 500ns. Phase-shifteddimming of the strings is incorporated for lower EMI.Comprehensive diagnostic information is also availablevia the I2C interface, while stand-alone operation is also supported.The MAX20444B is available in a 24-pin TQFN or 24-pin side-wettable TQFN (SWTQFN) package and operates over the -40°C to +125°C temperature range.ApplicationsCentral Information DisplaysInfotainment DisplaysInstrument Clusters