With a 40-V rated integrated switch
FET, the TPS92360 is a boost converter that drives LEDs in series. The boost
converter has a 40-V, 1.8-A internal MOSFET with minimum 1.2-A current limit; thus
it can drive single or parallel LED strings for small- to large-size panel
backlighting. The default white LED current is set with the external sensor
resistor, RSET, and the feedback voltage is regulated to 204 mV, as shown
in the Simplified Schematic. During the operation, the LED current can
be controlled by using a pulse width modulation (PWM) signal applied to the CTRL
pin, through which the duty cycle determines the feedback reference voltage. The
TPS92360 does not burst the LED current; therefore, it does not generate audible
noises on the output capacitor. For maximum protection, the device features
integrated open LED protection that disables the TPS92360 to prevent the output
voltage from exceeding the absolute maximum voltage ratings of the device during
open LED conditions.
The TPS92360 is available in a
space-saving 5-pin SC70 package.
With a 40-V rated integrated switch
FET, the TPS92360 is a boost converter that drives LEDs in series. The boost
converter has a 40-V, 1.8-A internal MOSFET with minimum 1.2-A current limit; thus
it can drive single or parallel LED strings for small- to large-size panel
backlighting. The default white LED current is set with the external sensor
resistor, RSET, and the feedback voltage is regulated to 204 mV, as shown
in the Simplified Schematic. During the operation, the LED current can
be controlled by using a pulse width modulation (PWM) signal applied to the CTRL
pin, through which the duty cycle determines the feedback reference voltage. The
TPS92360 does not burst the LED current; therefore, it does not generate audible
noises on the output capacitor. For maximum protection, the device features
integrated open LED protection that disables the TPS92360 to prevent the output
voltage from exceeding the absolute maximum voltage ratings of the device during
open LED conditions.
The TPS92360 is available in a
space-saving 5-pin SC70 package.