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Product Detailed Parameters
- Description：IC LED DRVR LIN PWM 25MA 9DSBGA
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Type：Linear
- Topology：-
- Internal Switch(s)：Yes
- Number of Outputs：4
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：25mA
- Frequency：-
- Dimming：PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 85°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：9-UFBGA, DSBGA
- Supplier Device Package：9-DSBGA
- Grade：-
- Qualification：-
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Overview
The TPS75105YFFT is a low-dropout, two-bank LED driver IC manufactured by Texas Instruments. It features four constant current outputs capable of delivering up to 25 mA each. The device operates within an input voltage range of 2.7 V to 5.5 V and supports PWM brightness control. It is housed in a DSBGA-9 surface-mount package. Key electrical specifications include a maximum power dissipation of 704 mW and a maximum supply current of 300 uA. The component functions reliably across an operating temperature range from -40°C to +85°C.
Feature Summary
- Integrates two independent LED drive banks with four constant current outputs for precise LED control.
- Supports pulse-width modulation (PWM) dimming for adjustable brightness levels.
- Includes thermal shutdown protection to safeguard the device during over-temperature conditions.
Applications
- LED backlighting systems
- General LED illumination circuits
- Portable electronic display drivers
Procurement Notes
Verify the specific suffix 'YFFT' corresponds to the DSBGA-9 package and reel/cut-tape availability when sourcing. Confirm that the intended application voltage remains within the 2.7 V to 5.5 V operational window. Ensure thermal management strategies account for the 704 mW power dissipation limit. Cross-reference the manufacturer part number against official Texas Instruments documentation to avoid counterfeit components.
Selection Notes
Select this component when a compact solution for driving multiple LEDs with PWM dimming is required. The low quiescent current makes it suitable for battery-powered applications. Consider the DSBGA-9 footprint constraints during PCB layout. Verify that the load requirements do not exceed the 25 mA per output specification. Evaluate thermal performance based on the expected ambient temperature and power dissipation.
Part Context
This part belongs to the TPS75105 series of LED drivers. It is designed as a linear regulator-based driver for small-scale LED arrays. The family focuses on simplicity and efficiency for direct LED control without complex external circuitry. It serves as a specialized solution within Texas Instruments' broader portfolio of power management and lighting driver integrated circuits.
Replacement Considerations
The TPS75105YFFR is a related variant within the same product family, differing primarily in packaging configuration. Verify pin compatibility and functional equivalence before substitution. No other direct substitute part numbers are publicly confirmed for this specific model.
