The TPS92205x family is a
2A / 4A non-synchronous Buck LED driver with 4.5V to 65V wide input range. By integrating the
low-side NMOS switch, the device is capable of driving LEDs as well as charging
batteries with high power density and high efficiency. The family also supports
common anode connection and single layer PCB design. The switching frequency is
configurable from 100kHz to 2.2MHz with optional spread spectrum feature for better
EMI performance.
The TPS92205x family supports four
dimming options, including analog, PWM, hybrid and flexible dimming. Each dimming
method can be configured through the PWM and ADIM input pins by means of simple high
and low signals. The family adopts an adaptive off-time current mode control along
with smart and accurate sampling to enable inductive fast dimming (IFD) and achieve
high dimming accuracy.
The TPS92205x family also provides
multiple systematic protections, including LED open and short, sense resistor open
and short, configurable thermal foldback and thermal shutdown. A Fault
output sends out acknowledge signals as soon as any fault condition is
detected.
The TPS92205x family is a
2A / 4A non-synchronous Buck LED driver with 4.5V to 65V wide input range. By integrating the
low-side NMOS switch, the device is capable of driving LEDs as well as charging
batteries with high power density and high efficiency. The family also supports
common anode connection and single layer PCB design. The switching frequency is
configurable from 100kHz to 2.2MHz with optional spread spectrum feature for better
EMI performance.
The TPS92205x family supports four
dimming options, including analog, PWM, hybrid and flexible dimming. Each dimming
method can be configured through the PWM and ADIM input pins by means of simple high
and low signals. The family adopts an adaptive off-time current mode control along
with smart and accurate sampling to enable inductive fast dimming (IFD) and achieve
high dimming accuracy.
The TPS92205x family also provides
multiple systematic protections, including LED open and short, sense resistor open
and short, configurable thermal foldback and thermal shutdown. A Fault
output sends out acknowledge signals as soon as any fault condition is
detected.