MAXIM MAX25510ATGA/V+T

The MAX25510/MAX25511 are 4-channel, white-LED backlight drivers with an integrated current-mode boost converter that operate over a switching frequency range of 400kHz to 2.2MHz and incorporate spread spectrum. Phase-shifting of the output channels is included as an option to further reduce EMI. The devices provide up to 120mA per channel and include a control output for an external nMOS series switch. These devices are capable of operating down to 3V after start-up. The MAX25510 has a boost current limit of 3A (min), while the MAX25511 implements a higher minimum current limit of 4.5A for increased output power. The MAX25510/MAX25511 are available in a compact TQFN package and operate over the temperature range -40°C to +125°C.

• Operate down to 3V on Battery Input after Start-Up
• Wide Boost Duty Cycle to Support Low Input Voltage
• Boost or SEPIC Current-Mode DC-DC Controller
• 400kHz to 2.2MHz Operating Frequency Range
• Spread Spectrum Available
• Can Be Synchronized to an External Clock
• Up to 120mA Output Current per String
• Low OUT_ Regulation Voltage for Best Efficiency
• Optional Phase-Shifting of Outputs
• 16667:1 Dimming Ratio at 200Hz
• NTC Input for LED Current Foldback
• Analog Dimming Capable
• Built-In Automatic Fading Functionality
• FLTB Output Provides Diagnostic Information: Shorted or Open LEDs, Thermal Shutdown, Output Undervoltage
• Compact, 4mm x 4mm TQFN Package AEC-Q100 Grade 1

• Automotive Instrument Clusters
• Automotive Central Information Displays
• Automotive Head-Up Displays