The MAX25611A/MAX25611B/MAX25611C/MAX25611Dare single-channel HBLED drivers for automotive front light applications such as high beam, low beam, daytime running light (DRL), turn indicator, fog light, and other LED lights. It can take an input voltage from 5V to 36V and can drive a string of LEDs with a maximum output voltage of 65V.The MAX25611A/B/C/D sense output current at the high side of the LED string. High-side currentsensing is required to protect for shorts from the output to the ground or battery input. It is also the most flexible scheme for driving LEDs, allowing boost, high-side buck, SEPIC mode, or buck-boost mode configurations. The PWM input provides LED dimming ratios of up to 5000:1, and the REFI input provides additional analog dimming capability in the MAX25611A/B/C/D. The MAX25611A/B/C/D have built-in spread-spectrum modulation for improved electromagnetic compatibility performance. The MAX25611A/B/C/D can also be used in zeta and Cuk converter configurations if it is necessary in some applications.The MAX25611A/B/C/D are available in a space-saving 12-pin SWTQFN-EP package. They are specified to operate over the -40°C to +125°C automotive temperature range. The switching frequency is internally set at 350kHzfor the MAX25611A/MAX25611C and 2.2MHz for theMAX25611B/MAX25611D. Design Solution: Keep Your Head Up with a High-Dimming Ratio Automotive Led Driver ›ApplicationsAutomotive Exterior LightingCommercial, Industrial, and Architectural LightingDaytime Running Lights (DRLs)Fog Lights and Adaptive Front Light AssembliesHead-Up DisplaysHigh Beam/Low Beam/Signal/Position lights

The MAX25611A/MAX25611B/MAX25611C/MAX25611Dare single-channel HBLED drivers for automotive front light applications such as high beam, low beam, daytime running light (DRL), turn indicator, fog light, and other LED lights. It can take an input voltage from 5V to 36V and can drive a string of LEDs with a maximum output voltage of 65V.The MAX25611A/B/C/D sense output current at the high side of the LED string. High-side currentsensing is required to protect for shorts from the output to the ground or battery input. It is also the most flexible scheme for driving LEDs, allowing boost, high-side buck, SEPIC mode, or buck-boost mode configurations. The PWM input provides LED dimming ratios of up to 5000:1, and the REFI input provides additional analog dimming capability in the MAX25611A/B/C/D. The MAX25611A/B/C/D have built-in spread-spectrum modulation for improved electromagnetic compatibility performance. The MAX25611A/B/C/D can also be used in zeta and Cuk converter configurations if it is necessary in some applications.The MAX25611A/B/C/D are available in a space-saving 12-pin SWTQFN-EP package. They are specified to operate over the -40°C to +125°C automotive temperature range. The switching frequency is internally set at 350kHzfor the MAX25611A/MAX25611C and 2.2MHz for theMAX25611B/MAX25611D. Design Solution: Keep Your Head Up with a High-Dimming Ratio Automotive Led Driver ›ApplicationsAutomotive Exterior LightingCommercial, Industrial, and Architectural LightingDaytime Running Lights (DRLs)Fog Lights and Adaptive Front Light AssembliesHead-Up DisplaysHigh Beam/Low Beam/Signal/Position lights

The MAX25611A/MAX25611B/MAX25611C/MAX25611Dare single-channel HBLED drivers for automotive front light applications such as high beam, low beam, daytime running light (DRL), turn indicator, fog light, and other LED lights. It can take an input voltage from 5V to 36V and can drive a string of LEDs with a maximum output voltage of 65V.The MAX25611A/B/C/D sense output current at the high side of the LED string. High-side currentsensing is required to protect for shorts from the output to the ground or battery input. It is also the most flexible scheme for driving LEDs, allowing boost, high-side buck, SEPIC mode, or buck-boost mode configurations. The PWM input provides LED dimming ratios of up to 5000:1, and the REFI input provides additional analog dimming capability in the MAX25611A/B/C/D. The MAX25611A/B/C/D have built-in spread-spectrum modulation for improved electromagnetic compatibility performance. The MAX25611A/B/C/D can also be used in zeta and Cuk converter configurations if it is necessary in some applications.The MAX25611A/B/C/D are available in a space-saving 12-pin SWTQFN-EP package. They are specified to operate over the -40°C to +125°C automotive temperature range. The switching frequency is internally set at 350kHzfor the MAX25611A/MAX25611C and 2.2MHz for theMAX25611B/MAX25611D. Design Solution: Keep Your Head Up with a High-Dimming Ratio Automotive Led Driver ›ApplicationsAutomotive Exterior LightingCommercial, Industrial, and Architectural LightingDaytime Running Lights (DRLs)Fog Lights and Adaptive Front Light AssembliesHead-Up DisplaysHigh Beam/Low Beam/Signal/Position lights

The MAX25611A/MAX25611B/MAX25611C/MAX25611Dare single-channel HBLED drivers for automotive front light applications such as high beam, low beam, daytime running light (DRL), turn indicator, fog light, and other LED lights. It can take an input voltage from 5V to 36V and can drive a string of LEDs with a maximum output voltage of 65V.The MAX25611A/B/C/D sense output current at the high side of the LED string. High-side currentsensing is required to protect for shorts from the output to the ground or battery input. It is also the most flexible scheme for driving LEDs, allowing boost, high-side buck, SEPIC mode, or buck-boost mode configurations. The PWM input provides LED dimming ratios of up to 5000:1, and the REFI input provides additional analog dimming capability in the MAX25611A/B/C/D. The MAX25611A/B/C/D have built-in spread-spectrum modulation for improved electromagnetic compatibility performance. The MAX25611A/B/C/D can also be used in zeta and Cuk converter configurations if it is necessary in some applications.The MAX25611A/B/C/D are available in a space-saving 12-pin SWTQFN-EP package. They are specified to operate over the -40°C to +125°C automotive temperature range. The switching frequency is internally set at 350kHzfor the MAX25611A/MAX25611C and 2.2MHz for theMAX25611B/MAX25611D. Design Solution: Keep Your Head Up with a High-Dimming Ratio Automotive Led Driver ›ApplicationsAutomotive Exterior LightingCommercial, Industrial, and Architectural LightingDaytime Running Lights (DRLs)Fog Lights and Adaptive Front Light AssembliesHead-Up DisplaysHigh Beam/Low Beam/Signal/Position lights

The MAX25612/MAX25612B is a single-channel high-brightness LED (HB LED) driver for automotive front-light applications such as high beam, low beam, daytime running light (DRL), turn indicator, fog light and other LED lights. It can take an input voltage from 5V to 48V and can drive a string of LEDs with a maximum output voltage of 65V. The MAX25612/MAX25612B is fully synchronous and is suitable for boost and buck-boost applications that need synchronous rectification providing efficiencies greater than 90%.The MAX25612/MAX25612B senses output current at the high side of the LED string. High-side current sensing is required to protect against shorts from the output to the ground or battery input. It is also the most flexible scheme for driving LEDs, allowing boost, high-side buck, or buck-boost mode configurations. The PWM input provides LED dimming ratios of up to 5000:1, and the ICTRL input provides additional analog dimming capability in the MAX25612/MAX25612B. The MAX25612/MAX25612B also includes a active-low FLT flag that indicates open string, shorted string, and thermal shutdown. The MAX25612/MAX25612B has built-in spread-spectrum modulation for improved electromagnetic compatibility performance. The MAX25612/MAX25612B is available in a space-saving (4mm x 4mm), 20-pin side-wettable TQFN or a 20-pin TSSOP package and is specified to operate overthe -40°C to +125°C automotive temperature range.ApplicationsAutomotive Exterior Lighting:Commercial, Industrial, and Architectural LightingDaytime Running Lights (DRLs)Fog Light and Adaptive Front-Light AssembliesHigh-Beam/Low-Beam/Signal/Position Lights

The MAX25612/MAX25612B is a single-channel high-brightness LED (HB LED) driver for automotive front-light applications such as high beam, low beam, daytime running light (DRL), turn indicator, fog light and other LED lights. It can take an input voltage from 5V to 48V and can drive a string of LEDs with a maximum output voltage of 65V. The MAX25612/MAX25612B is fully synchronous and is suitable for boost and buck-boost applications that need synchronous rectification providing efficiencies greater than 90%.The MAX25612/MAX25612B senses output current at the high side of the LED string. High-side current sensing is required to protect against shorts from the output to the ground or battery input. It is also the most flexible scheme for driving LEDs, allowing boost, high-side buck, or buck-boost mode configurations. The PWM input provides LED dimming ratios of up to 5000:1, and the ICTRL input provides additional analog dimming capability in the MAX25612/MAX25612B. The MAX25612/MAX25612B also includes a active-low FLT flag that indicates open string, shorted string, and thermal shutdown. The MAX25612/MAX25612B has built-in spread-spectrum modulation for improved electromagnetic compatibility performance. The MAX25612/MAX25612B is available in a space-saving (4mm x 4mm), 20-pin side-wettable TQFN or a 20-pin TSSOP package and is specified to operate overthe -40°C to +125°C automotive temperature range.ApplicationsAutomotive Exterior Lighting:Commercial, Industrial, and Architectural LightingDaytime Running Lights (DRLs)Fog Light and Adaptive Front-Light AssembliesHigh-Beam/Low-Beam/Signal/Position Lights

The MAX1698 and MAX1698A are efficient drivers forwhite or color LEDs. They are ideal for large LED backlitdisplays in PDAs and laptop computers. Numerousbenefits include greater simplicity, lower cost, higherefficiency, longer bulb life, and greater reliability whencompared to fluorescent (CCFL) and electroluminescent(EL) lamps.The MAX1698/MAX1698A are switch-mode boost controllersin which LED current, rather than output voltage,is regulated The devices drive series-connected LEDswith a controlled current that is measured with a typically15Ω sense resistor, not an expensive fractional-ohm value. LED current control and dimming are accomplishedwith an adjust input (ADJ). For larger light output,multiple LED banks can be connected in parallelwith up to 5W total output power.The MAX1698A has a higher, and more accuratelyspecified, CS current limit than the MAX1698 for higherpowerapplications of 5W or more. Both devices aresupplied in a space-saving 10-pin µMAX package thatoccupies half the space of an 8-pin SO. An evaluationkit (MAX1698EVKIT) is available to speed designs.ApplicationsBacklight for LCD PanelsBattery-Powered Backlight ApplicationsCell PhonesHandy TerminalsPDAs

The MAX1698 and MAX1698A are efficient drivers forwhite or color LEDs. They are ideal for large LED backlitdisplays in PDAs and laptop computers. Numerousbenefits include greater simplicity, lower cost, higherefficiency, longer bulb life, and greater reliability whencompared to fluorescent (CCFL) and electroluminescent(EL) lamps.The MAX1698/MAX1698A are switch-mode boost controllersin which LED current, rather than output voltage,is regulated The devices drive series-connected LEDswith a controlled current that is measured with a typically15Ω sense resistor, not an expensive fractional-ohm value. LED current control and dimming are accomplishedwith an adjust input (ADJ). For larger light output,multiple LED banks can be connected in parallelwith up to 5W total output power.The MAX1698A has a higher, and more accuratelyspecified, CS current limit than the MAX1698 for higherpowerapplications of 5W or more. Both devices aresupplied in a space-saving 10-pin µMAX package thatoccupies half the space of an 8-pin SO. An evaluationkit (MAX1698EVKIT) is available to speed designs.ApplicationsBacklight for LCD PanelsBattery-Powered Backlight ApplicationsCell PhonesHandy TerminalsPDAs

The MAX6964 I²C-compatible serial interfaced peripheral provides microprocessors with 17 output ports. Each output is an open-drain current-sinking output rated at 50mA and 7V. The outputs are capable of driving LEDs, or providing logic outputs with external resistive pullup up to 7V.Eight-bit PWM current control is also integrated. Four of the bits are global control and apply to all LED outputs to provide coarse adjustment of current from fully off to fully on with 14 intensity steps. Additionally, each output has an individual 4-bit control, which further divides the globally set current into 16 more steps. Alternatively, the current control can be configured as a single 8-bit control that sets all outputs at once.Each output has independent blink timing with two blink phases. LEDs can be individually set to be either on or off during either blink phase, or to ignore the blink control. The blink period is controlled by an external clock (up to 1kHz) on BLINK or by a register. The BLINK input can also be used as a logic control to turn the LEDs on and off, or as a general-purpose input (GPI). The MAX6964 supports hot insertion. The SDA, SCL, active-low RST, BLINK, and the slave address input ADO remain high impedance in power-down (V+ = 0V) with up to 6V asserted upon them. The output ports remain high impedance with up to 8V asserted upon them.The MAX6964 is controlled through a 2-wire I²C serial interface, and can be configured to one of four I²C addresses.ApplicationsKeypad BacklightsLCD BacklightsLED Status IndicationRGB LED Drivers

The MAX6965 I²C-compatible serial interfaced peripheral provides microprocessors with nine additional output ports. Each output is an open-drain current-sinking output rated to 50mA at 7V. All outputs are capable of driving LEDs, or providing logic outputs with external resistive pullup up to 7V.Eight-bit PWM current control is also integrated. Four of the bits are global control and apply to all LED outputs to provide coarse adjustment of current from fully off to fully on with 14 intensity steps. Additionally each output then has an individual 4-bit control, which further divides the globally set current into 16 more steps. Alternatively, the current control can be configured as a single 8-bit control that sets all outputs at once.Each output has independent blink timing with two blink phases. LEDs can be individually set to be either on or off during either blink phase, or to ignore the blink control. The blink period is controlled by an external clock (up to 1kHz) on BLINK or by a register. The BLINK input can also be used as a logic control to turn the LEDs on and off, or as a general-purpose input (GPI).The MAX6965 supports hot insertion. The SDA, SCL, active-low RST, BLINK, and the slave address input AD0 remain high impedance in power-down (V+ = 0V) with up to 6V asserted upon them. The output ports remain high impedance with up to 8V asserted upon them.The MAX6965 is controlled through a 2-wire I²C serial interface, and can be configured to one of four I²C addresses.ApplicationsKeypad BacklightsLCD BacklightsLED Status IndicationRGB LED Drivers