TPS61160DRVR

With a 40-V rated integrated switch FET, the
TPS61160 and TPS61161 are boost converters that
drive LEDs in series. The boost converters run at
600-kHz fixed switching frequency to reduce output
ripple, improve conversion efficiency, and allow for
the use of small external components.
The default white LED current is set with the external
sensor resistor RSET, and the feedback voltage is
regulated to 200 mV, as shown in the Typical
Application. During the operation, the LED current
can be controlled using the one-wire digital interface
(EasyScale™ protocol) through the CTRL pin.
Alternatively, a pulse width modulation (PWM) signal
can be applied to the CTRL pin through which the
duty cycle determines the feedback reference
voltage. In either digital or PWM mode, the
TPS61160 and TPS61161 do not burst the LED
current; therefore, they do not generate audible
noises on the output capacitor. For maximum
protection, the device features integrated open LED
protection that disable the TPS61160 and/or
TPS61161 to prevent the output voltage from
exceeding the device’s absolute maximum voltage
ratings during open LED conditions.
The TPS61160 and TPS61161 are available in a
space-saving, 2-mm × 2-mm WSON package with
thermal pad.