The TPS92205x ファミリ is a 1A / 2A non-synchronous 降圧 LED driver with 4.5V to 65V wide input range. By integrating the low-side NMOS switch with constant current control, the device is capable of driving LEDs with high power density and high efficiency. The device also supports common アノード connection and single layer PCB design, hence saving cost of connector, harness and PCB. The switching frequency is at 400kHz or 1MHz.

The TPS92205x ファミリ support PWM dimming by configuring through the DIM input pins by means of simple high and low signals. The TPS92205x ファミリ support analog dimming by configuring through the DIM input pins by means of analog signals. In PWM dimming, LED is turned on and off corresponding to on and off of the PWM input signal at DIM input pin. The PWM dimming mode supports ultra-narrow pulse width down to 50ns. In analog dimming, LED current is regulated corresponding to the analog voltage of the input signal at DIM input pin. 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 compensation bandwidth can be adjusted through an external capacitor based on system requirement.

For safety and protection, the devices support full systematic protections including LED open and short, switching FET open and short, sense resistor open and short, and thermal shutdown protection.