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Product Detailed Parameters
- Description：IC LED DRVR RGLTR PWM 400MA 8SON
- 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：1
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：6V
- Voltage - Output：18.5V
- Current - Output / Channel：400mA (Switch)
- Frequency：1MHz
- Dimming：PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-VDFN Exposed Pad
- Supplier Device Package：8-SON (3x3)
- Grade：-
- Qualification：-
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Overview
The TPS61061DRBR is a constant current LED driver IC from Texas Instruments, featuring a boost converter topology. It supports an input voltage range of 2.7 V to 6 V and delivers a maximum output current of 400 mA with a fixed output voltage of 19 V. Operating at a switching frequency of 1 MHz, the device integrates PWM dimming and digital brightness control capabilities. It is housed in an 8-SON (3x3 mm) package and functions within a temperature range of -40°C to +85°C.
Feature Summary
- Integrates digital and PWM brightness control for precise LED regulation
- Provides constant current output suitable for white LED power supplies
- Utilizes a compact 8-SON surface-mount package design
Applications
- White LED power supplies
- LED lighting driver circuits
- Portable electronic devices requiring backlighting
Procurement Notes
Verify the specific suffix DRBR against official Texas Instruments documentation to confirm the exact reel quantity and tape-and-reel specifications. Ensure compatibility with the required 8-SON footprint and thermal management requirements for the target PCB layout. Cross-reference the datasheet revision date to validate parameter accuracy before finalizing component sourcing decisions.
Selection Notes
Select this component when a fixed 19 V output and 400 mA constant current are required for single-string LED applications. The integrated digital and PWM control interfaces simplify system design compared to external resistor-based solutions. Consider the 1 MHz switching frequency for balancing component size and efficiency in space-constrained portable designs.
Part Context
This part belongs to the TPS6106x series of boost converters designed specifically for LED driving. It shares functional similarities with the TPS61060 but differs in output voltage characteristics. The device complements other TI LED drivers by offering a balance of high output voltage capability and compact packaging for modern consumer electronics.
Replacement Considerations
The TPS61061YZFT serves as a pin-compatible alternative within the same family, offering similar electrical performance in a DSBGA-8 package. Verify that the change in package type does not impact the mechanical constraints or thermal dissipation requirements of the existing board layout.
FAQ
What types of brightness control are supported?
The device supports both digital brightness control and PWM dimming for flexible light intensity adjustment.
Is the output voltage adjustable?
No, the TPS61061DRBR features a fixed output voltage of 19 V, unlike the adjustable output variants in the broader TPS6106x family.
