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Product Detailed Parameters
- Description：IC LED DRVR RGLTR ANALOG 10WSON
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Regulator
- Topology：Switched Capacitor (Charge Pump)
- Internal Switch(s)：-
- Number of Outputs：2
- Voltage - Supply (Min)：3V
- Voltage - Supply (Max)：5.8V
- Voltage - Output：-
- Current - Output / Channel：36mA
- Frequency：650kHz
- Dimming：Analog
- Applications：Backlight
- Operating Temperature：-30°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：10-WFDFN Exposed Pad
- Supplier Device Package：10-WSON (3x3)
- Grade：-
- Qualification：-
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Overview
The LM2791LD-H/NOPB is a current-regulated switched capacitor LED driver from Texas Instruments, designed for applications requiring precise brightness control. It features two independent output channels capable of driving LEDs with regulated current. The device operates on an analog dimming interface and utilizes a charge pump topology to step up voltage as needed. It supports a supply voltage range from 3V to 5.8V and functions within an ambient temperature range of -30°C to 85°C. The component is housed in a compact 10-WSON package.
Feature Summary
- Dual-channel current regulation for independent LED control
- Analog dimming capability for smooth brightness adjustment
- Switched capacitor (charge pump) topology for efficient voltage conversion
- Compact surface-mount packaging for space-constrained designs
Applications
- LED backlighting systems
- Portable electronic displays
- Indicator lighting circuits
- Low-power illumination modules
Procurement Notes
Verify the obsolete status of this specific part number before procurement planning. Confirm that the 10-WSON package dimensions match your PCB footprint requirements. Ensure compatibility with analog dimming signals in your system architecture. Check for RoHS compliance documentation if required by your manufacturing standards. Consider lead times for obsolete components carefully.
Selection Notes
Select this component when dual-channel LED regulation is required with analog dimming control. It is suitable for low-voltage applications operating between 3V and 5.8V. The charge pump topology makes it appropriate where boost conversion is necessary without inductors. Evaluate the 10-WSON package size against available board space constraints.
Part Context
This IC belongs to the LM2791 family of LED drivers from Texas Instruments. It is specifically engineered for portable devices requiring efficient power management. The H suffix typically denotes temperature or performance grade variations within the product line. The NOPB designation indicates lead-free and RoHS-compliant construction.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, direct replacements may require design modifications. Consult Texas Instruments for potential newer generation alternatives that offer similar functionality and pin compatibility.
