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Product Detailed Parameters
- Description：IC LED DRVR CTRLR PWM 20HTSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Controller
- Topology：Step-Up (Boost)
- Internal Switch(s)：No
- Number of Outputs：8
- Voltage - Supply (Min)：8V
- Voltage - Supply (Max)：30V
- Voltage - Output：-
- Current - Output / Channel：70mA
- Frequency：500kHz ~ 800kHz
- Dimming：PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-PowerTSSOP (0.173", 4.40mm Width)
- Supplier Device Package：20-HTSSOP
- Grade：-
- Qualification：-
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Overview
The TPS61199PWPR is a white LED driver IC designed for LCD monitor backlighting, manufactured by Texas Instruments. It features a boost topology with eight independent current-mode outputs, each capable of delivering up to 70 mA. The device operates within an input voltage range of 8 V to 30 V and supports adjustable output voltages. It functions at a switch frequency between 300 kHz and 800 kHz. The component is housed in an HTSSOP-20 package and includes protection features such as overvoltage protection (OVP) and thermal shutdown. It operates within a temperature range of -40°C to +85°C.
Feature Summary
- Integrates a current-mode boost controller with eight independent LED current sources
- Supports PWM control for brightness adjustment and enable/shutdown functionality
- Includes built-in overvoltage protection and thermal shutdown mechanisms
Applications
- LCD monitor backlighting systems
- White LED driver circuits for display panels
- Multi-string LED lighting applications requiring independent channel control
Procurement Notes
Verify the specific suffix 'PWPR' to confirm the HTSSOP-20 package type and reel packaging configuration. Ensure compatibility with the required 8-channel output architecture for your design. Confirm RoHS compliance status through official documentation before integration. Check moisture sensitivity levels for proper handling and storage requirements during assembly processes.
Selection Notes
Select this component when designing high-density LCD backlight solutions requiring independent current regulation for multiple LED strings. The integrated boost converter simplifies schematic design compared to discrete solutions. Consider the 70 mA per channel limit and the total power dissipation capabilities within the HTSSOP-20 package for thermal management planning.
Part Context
This part belongs to the TPS61199 series from Texas Instruments, specifically tailored for driving white LEDs in display applications. It consolidates power switching and current regulation into a single IC, reducing external component count. The PWPR variant denotes the specific tape-and-reel packaging suitable for automated surface-mount assembly processes.
Replacement Considerations
The TPS61199PWPRG4 is a lead-free version of this component. Verify if the G4 suffix meets environmental requirements while maintaining identical electrical specifications and pinout compatibility for direct substitution.
