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Product Detailed Parameters
- Description：IC LED DRV RGLTR PWM 18DSBGA
- 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：7
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：20mA
- Frequency：500kHz
- Dimming：PWM
- Applications：Backlight
- Operating Temperature：-30°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：18-WFBGA
- Supplier Device Package：18-DSBGA
- Grade：-
- Qualification：-
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Overview
The LM2796TL/NOPB is a dual-display white LED driver IC manufactured by Texas Instruments. It utilizes a switched capacitor (charge pump) topology to regulate current for LED applications. The device supports PWM dimming and operates within an input voltage range of 2.7V to 5.5V. It features internal switches and provides regulated output currents, typically up to 20mA per channel. The component is housed in an 18-DSBGA package and is designed for surface mount installation. It functions as a DC-DC regulator optimized for backlighting systems.
Feature Summary
- Dual-output architecture supporting independent control for two display channels
- Integrated charge pump circuitry eliminates the need for external inductors
- Direct PWM dimming capability for precise brightness control
Applications
- Mobile phone backlighting
- Smartphone LCD backlight drivers
- Portable electronic device displays
Procurement Notes
Verify the specific suffix against the manufacturer's latest datasheet to ensure compatibility with your design requirements. Confirm that the 18-DSBGA package dimensions align with your PCB footprint. Check for any recent Product Change Notifications regarding material or assembly updates. Ensure supply chain sources provide genuine components with traceable documentation.
Selection Notes
Select this component when designing dual-display systems requiring compact power solutions without inductors. It is suitable for applications needing regulated LED current from low-voltage battery sources. Consider the thermal performance within the small DSBGA package during high-current operation. Verify that the required dimming frequency falls within the supported operational range.
Part Context
This part belongs to the LM2796 series of LED drivers from Texas Instruments. It is specifically engineered for portable electronics where space constraints prohibit the use of bulky magnetic components. The NOPB suffix indicates a lead-free and RoHS-compliant version of the standard LM2796 device. It serves as a specialized solution for modern mobile communication devices.
Replacement Considerations
The LM2796TLX/NOPB is a tape-and-reel variant of the same functional device. Verify pinout compatibility if substituting with other dual-channel LED drivers from different manufacturers.
