TPS61181ARTER ,Six Strings LED Driver for Notebook Application 16-WQFN -40 to 85Features 3 DescriptionThe TPS61181A device provides highly integrated1• 4.5-V to 24-V Input Voltage ..
TPS61181RTE , WLED DRIVER FOR NOTEBOOK DISPLAY
TPS61181RTER ,1.5A White LED Driver for Notebooks 16-WQFN -40 to 85FEATURES• 5 V to 24 V Input Voltage • Driver for Input/Output Isolation PFET• Integrated 1.5 A 40 V ..
TPS61181RTERG4 ,1.5A White LED Driver for Notebooks 16-WQFN -40 to 85 SLVS801E –DECEMBER 2007–REVISED APRIL 2013PINOUTQFN PACKAGE16 Pin 3x3(TOP VIEW)16 15 14 131 12PGND ..
TPS61181RTET ,1.5A White LED Driver for Notebooks 16-WQFN -40 to 85This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated cir ..
TPS61182RTER ,1.5A White LED Driver for Notebooks 16-WQFN -40 to 85FEATURES• 5 V to 24 V Input Voltage • Driver for Input/Output Isolation PFET• Integrated 1.5 A 40 V ..
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TPS61181ARTER
Six Strings LED Driver for Notebook Application
µH D1 C24.7µF
IFB4
IFB5
IFB6
VBAT
Cin
4.5 V to24V
4.7µF WLED in series,120 mAtotal51W
Fault
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TPS61181ASLVSAN6B –FEBRUARY 2011–REVISED SEPTEMBER 2016
TPS61181A White-LED Driver For Notebook Display Integrated 1.5-A/40-V MOSFET 1-MHz Switching Frequency Adaptive Boost Outputto WLED Voltages Small External Components Integrated Loop Compensation Six Current Sinksof 30 mA Upto10 WLED 1% Typical Current Upto 1000:1 PWM Minimized Output Driver for Input/Output Isolation PFET True Shutdown Overvoltage Protection WLED Open and Short Protection Built-in Soft Start
Applications Notebook LCD Display Backlight UMPC LCD Display Backlight Backlight for Media Form Factor LCD Display
regulation and matching. In total, the device can
supportupto60 WLEDs.
The devices support pulse width modulation (PWM)
brightness dimming. During dimming, the WLED
current is turned on/off at the duty cycle and
frequency, determinedby the PWM signal inputto the
DCRTL pin. The TPS61181A deviceis designedto
minimize the output AC ripple acrossa wide dimming
duty cycle and frequency range and also reduces the
audible noise from the output ceramic capacitors.
The TPS61181A device providesa driver output for external PFET connected between the input and
inductor. During short circuit or overcurrent
conditions, the device turnsoff the external PFET and
disconnects the battery from the WLEDs. The PFET also turned off during device shutdown (thereby
giving true shutdown)to prevent any leakage current
from the battery. The device integrates overvoltage
protection, soft-start and thermal shutdown and hasa
built-in linear regulator for the device supply.
Device Information(1)(1) Forall available packages, see the orderable addendumat
the endofthe data sheet.
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TPS61181A Typical Application
