1FEATURES

2• 3.5-V to 60-V Input Voltage Range

• Integrated 200-mΩ High-Side MOSFET

• 200 mV Internal Voltage Reference high•

±3% LED Current Accuracy tight•

100 kHz to 2.5 MHz Switching Frequency

Range

• Dedicated PWM Dimming Input

• LED Thermal Foldback

• Adjustable UVLO

• Overcurrent Protection

• Over-Temperature Protection

• MSOP-10 (DGQ) PowerPAD™ Package

APPLICATIONS

• Street Lighting

• Emergency Lighting

• General Illumination

• Industrial and Commercial Lighting

• MR16 LED Bulbs

DESCRIPTION

The TPS92510 is a 60-V, 1.5-A peak current-mode step-down converter with an integrated high-side

MOSFET. It is specifically designed for driving high•

brightness LEDs with a constant current. The tight•

tolerance, 200-mV internal reference voltage reduces

power dissipation in the current-sense resistor. A dedicated pulse width modulation input pin allows

linear control of the light output.

The TPS92510 integrates a thermal foldback feature

that reduces the average output current to ensure

that the sensed LED temperature never exceeds a

specific value, improving the reliability of the overall system. An integrated frequency synchronization

feature allows a reduction of unwanted beatfrequencies

in multi-string applications and simplifies

EMI filtering. The adjustable input voltage UVLO

feature accommodates the various deep discharge

levels of multiple battery types.

The TPS92510 includes cycle-by-cycle overcurrent protection, and thermal shutdown protection. It is

available in a 10-pin MSOP PowerPAD™ package.