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TPS61160ADRVR-TPS61160ADRVT
White LED Driver with PWM Brightness Control in 2mm x 2mm Package. Up to 10 LEDs in Series
38V MAX
VIN SW
GND
CTRL
COMP
TPS61161A
ON/OFF
DIMMING
CONTROL 3 V to 18 VIHm
Fm
220 nF
setFm
L1: TDK VLCF5020T-220MR75-1
C1: Murata GRM188R61E105K
C2: Murata GRM21BR71H105K
D1: ONsemi MBR0540T1
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TPS61160A, TPS61161ASLVS937C –MARCH 2009–REVISED JULY 2016
TPS6116xA White LED Driver with PWM Brightness Controlin
2-mmx 2-mm WSON Package Features Input Voltage Range: 2.7Vto18V 26-V Open LED Protection for TPS61160A
38-V Open LED Protection for TPS61161A 200mV Reference Voltage With ±2% Accuracy PWM Interfacefor Brightness Control Built-in Soft Start Upto 90% Efficiency 2-mm× 2-mm× 0.8-mm 6-Pin WSON Package
With Thermal Pad
Applications Cellular Phones Portable Media Players Ultra Mobile Devices GPS Receivers White LED Backlighting for Media Form Factor
Display
DescriptionWith a 40-V rated integrated switch FET, the
TPS61160A/61Aisa boost converter that drives
LEDsin series. The boost converter runsat 600-kHz
fixed switching frequency to reduce output ripple,
improve conversion efficiency, and allows for the use small external components.
The default white LED currentis set with the external
sensor resistor Rset, and the feedback voltageis
regulated to 200 mV, as shown in the typical
application. During the operation, the LED current can controlled bya pulse width modulation (PWM)
signal appliedto the CTRL pin through which the duty
cycle determines the feedback reference voltage.In
PWM dimming mode, the TPS61160A/61A 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 TPS61160A/61A to
prevent the output from exceeding the absolute
maximum ratings during open LED conditions.
The TPS61160A/61Ais availableina space-saving,
2-mm× 2-mm WSON package with thermal pad.
Device Information(1)(1) Forall available packages, see the orderable addendumat
the endofthe data sheet.
Typical Applicationof TPS61161A
