TI TPS92513HVDGQT

The TPS92513/HV is a 1.5A buck current regulator with an integrated MOSFET for driving high-current LEDs. These two LED drivers support maximum input voltages of 42V and 60V (HV) respectively, operate under peak current mode control at a user-selectable fixed frequency, and deliver excellent line and load regulation performance.

The TPS92513/HV LED drivers feature dedicated inputs for analog dimming and PWM dimming respectively, providing brightness control with contrast ratios of up to 10:1 and greater than 100:1 without interference. The PWM input is compatible with low-voltage logic standards for easy interfacing with microcontrollers. Via the IADJ input, an external signal of 0V to 1.8V can be used to adjust the analog LED current setpoint within a range of 0V to 300mV.

For multi-string applications using two or more TPS92513/HV LED drivers, an external clock can be used to override the internal oscillator, ensuring all converters operate at the same frequency to reduce the likelihood of beat frequencies and simplify system EMI filter design. The device features an adjustable input UVLO pin with hysteresis, allowing flexible configuration of start/stop voltages based on specific supply voltage conditions.

The TPS92513 provides cycle-by-cycle overcurrent protection and thermal shutdown protection. The device is available in a 10-pin HVSSOP PowerPAD package.

• Integrated 220mΩ high-side MOSFET
• 4.5V to 42V input voltage range (4.5V to 60V for TPS92513HV)
• 0V to 300mV adjustable reference voltage
• ±5% LED current accuracy
• 100kHz to 2MHz switching frequency range
• Dedicated PWM dimming input
• Adjustable UVLO
• Overcurrent protection
• Thermal protection
• MSOP-10 package with PowerPAD

• Street lighting
• Emergency/exit lighting
• General industrial and commercial lighting
• Retail lighting
• Appliance lighting
• Transportation lighting
• 3D illuminated sign light strips