The TPS922152 is
non-synchronous Average-Current control Buck LED drivers with 4.5V to 500V wide application
voltage range. The TPS922152 is capable of driving
external switching FETs at adjustable switching frequency up to 1MHz with Adative
Off-Time (AOT) mode. The AOT
mode allows low LED current ripple and fast transient response with small output
capacitor. The device also supports single
layer PCB design and common
anode connection.
The TPS922152
supports high-accuracy and high-ratio analog dimming by configuring analog signals
through the ADIM input pins. The full-scale output current is configured by an
external resistor and high analog dimming ratio is achievable by the unique
corrective sensing. The device also supports high-frequency and high-ratio PWM
dimming by configuring simple high and low signals through the PDIM input pins.
High-accuracy and high-ratio of PWM dimming is achievable by the unique inductive
fast dimming (IFD).
The TPS922152 also
provides multiple systematic protections, including LED open and short, sense
resistor open and short.
The TPS922152 is
non-synchronous Average-Current control Buck LED drivers with 4.5V to 500V wide application
voltage range. The TPS922152 is capable of driving
external switching FETs at adjustable switching frequency up to 1MHz with Adative
Off-Time (AOT) mode. The AOT
mode allows low LED current ripple and fast transient response with small output
capacitor. The device also supports single
layer PCB design and common
anode connection.
The TPS922152
supports high-accuracy and high-ratio analog dimming by configuring analog signals
through the ADIM input pins. The full-scale output current is configured by an
external resistor and high analog dimming ratio is achievable by the unique
corrective sensing. The device also supports high-frequency and high-ratio PWM
dimming by configuring simple high and low signals through the PDIM input pins.
High-accuracy and high-ratio of PWM dimming is achievable by the unique inductive
fast dimming (IFD).
The TPS922152 also
provides multiple systematic protections, including LED open and short, sense
resistor open and short.