1 Features
• 4.5V to 65V wide input range
• LED common cathode connection
• Integrated 300mΩ MOSFET:
– Typical current limit (1.6A / 3.2A)
– Switching frequency (400kHz / 1MHz)
• Advanced dimming options:
– Analog dimming (200:1)
– Fast PWM dimming (50ns pulse width)
• Full protection features:
– LED open and short protection
– Switching FET open and short protection
– External component failure protection
– Cycle-by-cycle current limit
– Thermal shutdown
• Package: WSON-8, HVSSOP-8, SOT583

2 Applications
• Constant illumination:
– Indoor and outdoor lighting
– Appliance lighting
– Cold/warm WLED lighting
– Emergency and signage lighting
– Security floodlight
– LED bulb and lamp
– LCD backlight
• Instant illumination:
– Machine vision and camera flash
– Fire alarm and strobe

3 Description
The TPS92365x family is a 1A / 2A non-synchronous
Buck LED driver with 4.5V to 65V wide input
range. By integrating the low-side NMOS, the
device is capable of driving LEDs with high power
density and high efficiency. The device also supports
common cathodeconnection and single layer PCB.
The switching frequency is set at 400kHz or 1MHz.
The TPS92365x family support PWM dimming by
configuring through the DIM input pins by means of
simple high and low signals. The TPS92365x family
support analog dimming by configuring through the
DIM input pins by means of analog voltage signals.
The device adopts an adaptive off-time current mode
control along with smart and accurate sampling to
enable fast PWM dimming and achieve high dimming
ratio.
The TPS92365x family also provides multiple
systematic protections, including LED open and short,
switching FET open and short, sense resistor open
and short, and thermal shutdown.