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TPS61183RTJR
WLED Driver for Notebooks with PWM Interface and Programmable PWM Dimming
RFPWM
/MODE
10mH D1
4.7mF
IFB1
IFB2
IFB3
IFB4
OVP
VIN
VDDIO
ISET
AGND
TPS61183mF
FSW
2.2mF
PGND
4.5V~24V
PWMINKW
499KW
19.8mA
IFB5
IFB6
FAULT
FPO
VDD_GPIO
1.2KWKW
9.09KW
Open
Open
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Technical
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SLVSAB4D –JUNE 2010–REVISED JANUARY 2017
TPS61183 White-LED Driver With PWM Interface and Programmable PWM Dimming Features 4.5-Vto 24-V Input Voltage 38-V Maximum Output Voltage Integrated 2-A, 40-V MOSFET 280-kHzto 1-MHz Programmable Switching
Frequency Adaptive Boost Outputto WLED Voltages Wide PWM Dimming Frequency Range 100 Hzto50 KHzfor Direct PWM Mode 100 Hzto22 KHzfor Frequency
Programmable Mode 100:1 Dimming Ratioat20 kHz 10000:1 Dimming Ratioat 200 Hz (Direct PWM
mode) Small External Components Integrated Loop Compensation Six Current Sinksof 30 mA, Maximum 1.5% (Typical) Current Matching PWM Brightness Interface Control PWM Programmable Mode Brightness Dimming
Methodor Direct PWM Dimming Method 4000-V HBM ESD Protection Programmable Overvoltage Threshold Built-in WLED Open and Short Protections Thermal Shutdown
Applications Notebooks Tablets Monitors Industrial PCs Human Machine Interface Screens ATMs
DescriptionThe TPS61183 device providesa highly integrated
white-LED (WLED) driver solution for notebook LCD
backlights. This device hasa built-in high-efficiency
boost regulator with integrated 2-A, 40-V power
MOSFET. The six current sink regulators provide
high-precision current regulation and matching. The
device can supporta totalof upto 60 WLEDs.In
addition, the boost output automatically
voltageto the WLED forward
efficiency.
The TPS61183 supports programmable
brightness dimming method. configuration, the
dimming duty cycleof theis controlled the input PWM signal frequency fixed and set by an external During direct
PWM dimming, the WLED completely
synchronized with the input duty cycle
and frequency.
(1) Forall available packages, see the orderable addendumat
the endofthe data sheet.
Typical Programmable PWM-Mode Application
