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Product Detailed Parameters
- Description：IC LED DRVR RGLTR PWM 30MA 20QFN
- 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)：4.5V
- Voltage - Supply (Max)：24V
- Voltage - Output：38V
- Current - Output / Channel：30mA
- Frequency：300kHz ~ 1MHz
- Dimming：PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-WFQFN Exposed Pad
- Supplier Device Package：20-QFN (4x4)
- Grade：-
- Qualification：-
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Overview
The TPS61183RTJR is a white-LED driver IC designed for notebook applications, manufactured by Texas Instruments. It utilizes a boost topology with an integrated 2-A, 40-V MOSFET. The device supports a programmable switching frequency ranging from 280 kHz to 1 MHz and delivers a maximum output voltage of 38 V. It operates within an input voltage range of 4.5 V to 24 V and features six current-mode outputs. The component is housed in a QFN-20 package and functions reliably across a temperature range of -40°C to +85°C.
Feature Summary
- Integrates a high-current 2-A, 40-V power MOSFET for efficient LED driving.
- Supports PWM dimming interface with adaptive boost output control.
- Features open LED protection mechanisms for system reliability.
Applications
- White-LED backlighting for notebook computers
- Portable electronic display illumination systems
Procurement Notes
Verify the specific suffix RTJR against the manufacturer's official datasheet to confirm the tape-and-reel packaging configuration and pinout compatibility. Ensure that the selected variant matches the required thermal performance and electrical specifications for the target design. Cross-reference the ordering part number with the latest Texas Instruments documentation to avoid discrepancies in package type or revision level.
Selection Notes
Select this component when designing notebook displays requiring a single-inductor solution for multiple LED strings. The adjustable switching frequency allows optimization for external inductor size and efficiency. The integrated MOSFET simplifies the bill of materials compared to discrete solutions. Verify that the application input voltage remains within the specified 4.5 V to 24 V range during operation.
Part Context
This device belongs to the TPS6118x series of WLED drivers from Texas Instruments. It shares functional similarities with the TPS61187 and TPS61180 but differs in specific electrical ratings and package options. The TPS61183RTJR specifically denotes the QFN-20 packaged version intended for surface-mount assembly in compact portable devices.
Replacement Considerations
The TPS61183RTJT is a related variant within the same family, differing primarily in packaging format. Direct substitution requires verification of pin-to-pin compatibility and thermal characteristics between the reel and cut-tape versions.
