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Product Detailed Parameters
- Description：IC LED DRVR RGLTR I2C 1A 12WSON
- 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：1
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：2V ~ 4V
- Current - Output / Channel：1A (Flash)
- Frequency：1MHz
- Dimming：I2C
- Applications：Camera Flash
- Operating Temperature：-30°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：12-WFDFN Exposed Pad
- Supplier Device Package：12-WSON (3x3)
- Grade：-
- Qualification：-
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Overview
The LM2759SD/NOPB is a single-channel LED lighting driver IC from Texas Instruments, designed for switched capacitor flash applications. It operates within an input voltage range of 2.7 V to 5.5 V and delivers a constant output current of 1 A. The device utilizes a charge pump topology with a switching frequency between 700 kHz and 1.3 MHz. It provides an adjustable output voltage from 2 V to 4 V and features I2C control capabilities. Packaged in a WSON-12 format, it supports surface mount installation and functions reliably across a temperature range of -30°C to +85°C.
Feature Summary
- Integrates I2C control interface for digital configuration and monitoring
- Employs charge pump topology to drive high-current LEDs efficiently
- Provides regulated constant current output for stable LED performance
Applications
- LED lighting drivers
- Switched capacitor flash systems
Procurement Notes
Verify the specific package variant and revision level against the manufacturer's latest datasheet before integration. Confirm that the I2C address and control register mappings align with the system controller requirements. Ensure thermal management strategies accommodate the WSON-12 package characteristics under maximum load conditions. Cross-reference RoHS compliance documentation to meet environmental standards for the target deployment region.
Selection Notes
Select this component when a compact solution is required for driving high-intensity LEDs from a single-cell lithium battery source. The integrated charge pump eliminates the need for external inductors, reducing board space. Consider the I2C interface if digital dimming or status feedback is necessary. Evaluate the operating temperature range to ensure suitability for the intended environmental conditions.
Part Context
This part belongs to the LM2759 series of LED drivers. It is distinct from other Texas Instruments power management devices like the LM2750 or LM27341, which serve different topologies such as boost or buck converters. The LM2759 is specifically optimized for capacitive flash applications rather than general-purpose voltage regulation.
Replacement Considerations
Check for direct pin-compatible alternatives within the same family, such as the LM2759SDX/NOPB, ensuring functional equivalence. Verify that any substitute maintains the same WSON-12 footprint and electrical specifications.
