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Product Detailed Parameters
- Description：IC LED DRV RGLTR PWM 25MA 16WQFN
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Type：DC DC Regulator
- Topology：Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：6
- Voltage - Supply (Min)：5V
- Voltage - Supply (Max)：24V
- Voltage - Output：38V
- Current - Output / Channel：25mA
- Frequency：1MHz
- Dimming：PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-WFQFN Exposed Pad
- Supplier Device Package：16-WQFN (3x3)
- Grade：-
- Qualification：-
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Overview
The TPS61181RTER is a six-channel white LED driver IC from Texas Instruments, designed for notebook display backlighting. It utilizes a boost topology with an integrated MOSFET and operates within a supply voltage range of 5 V to 24 V. The device provides regulated output currents up to 25 mA per channel and supports PWM dimming control. It features a maximum output voltage of 38 V and functions at a switching frequency of 1 MHz. The component is housed in a 16-WQFN package and operates across a temperature range of -40°C to +85°C.
Feature Summary
- Six independent current-regulated channels for uniform white LED backlighting
- Integrated high-side MOSFET simplifies external component count
- Supports analog and PWM dimming for brightness control
- Operates from a single-cell lithium-ion battery or higher voltage sources
Applications
- Notebook computer display backlight systems
- Tablet PC LCD backlight drivers
- Portable electronic device lighting modules
Procurement Notes
Verify the specific suffix 'RTER' corresponds to the tape-and-reel packaging format required for your assembly line. Confirm that the 25 mA output current rating aligns with your LED string requirements, as other variants like the TPS61181ARTET offer different current levels. Ensure the 16-WQFN thermal pad soldering process meets your manufacturing standards for reliable heat dissipation.
Selection Notes
Select this part when designing for notebook or tablet displays requiring six-channel regulation from a single power source. It is suitable for applications where space constraints favor an integrated solution over discrete components. Consider the input voltage range compatibility with your system's battery or power rail. Evaluate the thermal performance in your enclosure design due to the integrated switch.
Part Context
This component belongs to the TPS6118x family of LED drivers, which includes variants like the TPS61180 and TPS61181A. These devices share similar functional architectures but differ in output current capabilities and specific feature sets. The TPS61181RTER specifically targets the mid-range current requirement for portable computing displays.
Replacement Considerations
The TPS61181RTET is a direct equivalent with identical electrical specifications but may differ in reel quantity or manufacturer-specific ordering codes. Verify pinout compatibility before substitution.
