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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 TPS75105YFFR is a linear low dropout (LDO) LED current source from Texas Instruments, optimized for low-power keypad and navigation pad LED backlighting. It features four constant current outputs with a maximum output current of 25 mA per channel. The device operates within an input voltage range of 2.7 V to 5.5 V and supports PWM control for brightness dimming. It includes thermal shutdown protection and enable/shutdown functionality. The component is housed in a 9-DSBGA package and functions within a junction temperature range of -40°C to +85°C.
Feature Summary
- Four-channel constant current output capability
- PWM brightness control and dimming support
- Integrated thermal shutdown protection
- Enable and shutdown control interface
Applications
- Keypad LED backlighting
- Navigation pad illumination
- Low-power indicator lighting
Procurement Notes
Verify the specific ordering suffix YFFR against the manufacturer's official datasheet to ensure correct packaging and tape specifications. Confirm that the 9-DSBGA footprint matches the target PCB layout requirements. Cross-reference the RoHS compliance status and moisture sensitivity level with current project standards before finalizing procurement orders.
Selection Notes
Select this component for applications requiring precise constant current regulation for multiple LEDs in space-constrained designs. The linear topology suits low-noise environments where switching regulator interference must be avoided. Ensure the system supply voltage remains within the 2.7 V to 5.5 V operational window to maintain proper LDO performance and thermal management.
Part Context
This part belongs to the TPS7510x series of matching LED current sources designed by Texas Instruments. The series focuses on providing matched current outputs for uniform LED brightness in small form-factor electronics. It serves as a specialized solution within the broader PMIC LED driver category, targeting portable consumer devices.
Replacement Considerations
Direct substitutes include LP5524TM-5/NOPB and LP5524TMX-5/NOPB from Texas Instruments. Verify pin compatibility and electrical parameter alignment before substitution.
