LCSC Electronics logoLCSC Electronics svg logo
Sign In
USD
Cart
TI TPS61181ARTER product image
  • TPS61181ARTER thumbnail 1
  • TPS61181ARTER thumbnail 2
  • TPS61181ARTER thumbnail 3
  • Pinout
  • Footprint
Images for reference only

TI TPS61181ARTERRoHS

Manufacturer
TI
MPN
TPS61181ARTER
LCSC Part #
C2679379
Packaging
WQFN-16-EP(3x3)
Customer #
Key Attributes
White Light LED (WLED) driver for laptop monitors
Datasheetpdf iconTI TPS61181ARTER
In-Stock: 250
250 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
1+$ 1.5202$ 1.52
10+$ 1.263$ 12.63
30+$ 1.1214$ 33.64
100+$ 0.9619$ 96.19
500+$ 0.8903$ 445.15
1,000+$ 0.8594$ 859.40
Standard Packaging3000/Full Reel
Better price for more quantity?
$

Products Specifications

Show similar products (0) >
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/LED Drivers ICs
ManufacturerTI
PackagingWQFN-16-EP(3x3)
Output Voltage38V
FeaturesOver Voltage Protection;Built-in soft-start;Short Circuit Protection;LED open-circuit protection;Over-Temperature Protection (OTP)
Frequency - Switching1MHz
Switch Tube (Built-In/External)Built-in
Voltage - Input(AC)-
Operating temperature-40℃~+85℃
Number of Channels6
TopologyBoost
TypeDC-DC
Output Current30mA
Constant Current Accuracy1%
Voltage - Input(DC)4.5V~24V
Report an ErrorShow similar products (0) >

Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging3000
Sales UnitPiece

Introduction

AI Translation

The TPS61181A IC provides a highly integrated solution for medium-size LCD backlight illumination. These devices feature a built-in high-efficiency boost regulator with an integrated 1.5A/40V power MOSFET. Six current sink regulators deliver high-accuracy current regulation and matching. The device can support up to 60 WLEDs in total. In addition, the boost output can automatically adjust its voltage to the WLED forward voltage to improve efficiency.

These devices support PWM brightness dimming. During dimming, the WLED current is switched on and off at a duty cycle and frequency determined by the PWM signal input at the DCRTL pin. The TPS61181A is specifically designed to minimize output AC ripple over a wide range of dimming duty cycles and frequencies, thereby reducing audible noise.

The TPS61181A provides a driver output for an external PFET connected between the input and the inductor. In the event of a short circuit or overcurrent condition, the IC will shut down the external PFET and disconnect the battery from the WLEDs. During IC shutdown, the PFET is also turned off (enabling "true" shutdown) to prevent any leakage current from the battery. Additionally, the device integrates overvoltage protection, soft-start, and thermal shutdown functions.

The TPS61181A features a built-in linear regulator for IC power supply. The device is available in a 3mm x 3mm QFN package.

The TPS61181A IC has integrated all the key function blocks to power and control up to 60 WLEDs. The devices include a 40V/1.5A boost regulator, six 30mA current sink regulators and protection circuit for over-current, over-voltage and short circuit failures. The key advantages of the devices are small solution size, low output AC ripple during PWM dimming control, and the capability to isolate the input and output during fault conditions.

Features

AI Translation
  • 4.5V to 24V input voltage, 38V maximum output voltage
  • Integrated 1.5A / 40V MOSFET
  • 1.0MHz switching frequency
  • Adaptive boost output to WLED voltage
  • Small external components
  • Integrated loop compensation
  • 6 × 30mA current sinks
  • Up to 10 series WLEDs
  • ±1% typical current matching and accuracy
  • Up to 1000:1 PWM dimming ratio
  • Minimized output ripple under PWM dimming
  • Driver for input/output isolation PFET
  • True shutdown
  • Overvoltage protection
  • WLED open/short circuit protection
  • Integrated soft-start
  • 16L 3mm × 3mm QFN package

Applications

AI Translation
  • Notebook PC LCD display backlight
  • UMPC LCD display backlight
  • Media Form Factor LCD display backlight