ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC LED DRV RGLTR PWM 14DSBGA
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Regulator
- Topology：Switched Capacitor (Charge Pump)
- Internal Switch(s)：Yes
- Number of Outputs：4
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：3.8V
- Current - Output / Channel：20mA
- Frequency：515kHz
- Dimming：Analog, PWM
- Applications：Backlight
- Operating Temperature：-30°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：14-WFBGA, DSBGA
- Supplier Device Package：14-DSBGA
- Grade：-
- Qualification：-
Download product information
Overview
The LM2795BLX/NOPB is a high-efficiency, current-regulated switched capacitor LED driver manufactured by Texas Instruments. It features an integrated charge pump topology designed for portable applications. The device supports both analog and PWM brightness control methods to adjust LED intensity. It operates within a supply voltage range of 2.8 V to 5.5 V and provides regulated output currents suitable for driving multiple white LEDs in series or parallel configurations.
Feature Summary
- Integrates a switched capacitor charge pump topology for efficient step-up DC-DC conversion without requiring inductors.
- Supports dual dimming modes including analog voltage control and pulse-width modulation (PWM) for precise brightness adjustment.
- Provides constant current regulation to ensure stable LED performance across varying input voltages and temperatures.
Applications
- White LED backlighting for smartphones
- LED illumination for tablet computers
- Portable media player displays
Procurement Notes
Verify the specific suffix 'BLX' indicates the tape-and-reel packaging variant distinct from the 'BL' tray version. Confirm the 'NOPB' designation ensures lead-free compliance and RoHS adherence as per Texas Instruments standards. Cross-reference the manufacturer part number with official distributor catalogs to ensure authenticity and correct package identification before procurement.
Selection Notes
Select this component when designing compact power solutions that require inductor-less topologies to save board space. It is appropriate for systems needing flexible dimming capabilities via either analog or digital interfaces. Ensure the application's input voltage range aligns with the 2.8 V to 5.5 V specification and that the required LED forward voltage matches the charge pump output capabilities.
Part Context
This device belongs to the LM2795 family of LED drivers from Texas Instruments. It shares functional similarities with the LM2795BL and LM27951SD variants but differs in package type and specific electrical characteristics. The BLX suffix specifically denotes the reel-packaged version of the BL die, facilitating automated surface-mount assembly processes.
Replacement Considerations
The LM2795BL serves as the direct non-reel equivalent. The LM27951SD offers a similar charge pump function but features four outputs and different pinout compatibility. Verify pin-to-pin compatibility and thermal requirements when substituting with these alternatives.
