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Product Detailed Parameters
- Description：IC LED DRV RGLTR I2C 30MA 24WQFN
- 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：9
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：2V ~ 4V
- Current - Output / Channel：30mA
- Frequency：1.27MHz
- Dimming：I2C
- Applications：Backlight, Lighting
- Operating Temperature：-30°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：24-WFQFN Exposed Pad
- Supplier Device Package：24-WQFN (4x5)
- Grade：-
- Qualification：-
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Overview
The LM27965SQX/NOPB is an LED lighting driver IC manufactured by Texas Instruments. It features a switch capacitor (charge pump) topology with nine outputs, each capable of delivering up to 30mA. The device operates on a supply voltage range of 2.7V to 5.5V and produces output voltages between 2V and 4V. It utilizes I2C control for brightness regulation and functions at a switching frequency of 1.27MHz. The component is housed in a 24-WQFN package with dimensions of 4x5mm and supports surface mount installation. It is designed for applications requiring dual display white LED driving capabilities.
Feature Summary
- Integrates I2C compatible brightness control interface for precise regulation
- Utilizes switch capacitor charge pump topology for efficient DC-DC conversion
- Supports high channel count with nine independent output channels
Applications
- Dual display white LED backlighting systems
- General LED illumination drivers
- Portable electronic device backlighting
Procurement Notes
Verify the specific suffix 'NOPB' to ensure compliance with RoHS standards, as the base part number may have non-compliant variants. Confirm the package designation matches the required 24-WQFN footprint. Check current availability status as inventory levels fluctuate. Ensure the ordering quantity aligns with standard factory packaging multiples if applicable. Validate that the operating temperature range meets the environmental requirements of the target application.
Selection Notes
Select this component when a multi-channel LED driver with digital I2C control is required. Consider the 30mA per channel limit for load sizing. Evaluate the 2.7V to 5.5V input range against the system power supply. The 1.27MHz frequency allows for smaller external passive components compared to lower frequency alternatives. Ensure the 24-WQFN package fits within the PCB layout constraints.
Part Context
This part belongs to the LM27965 series of LED drivers from Texas Instruments. It is specifically engineered for display backlighting applications. The series integrates charge pump technology to drive multiple LEDs efficiently. The NOPB suffix indicates lead-free and RoHS compliant manufacturing. It serves as a specialized solution for compact electronic devices requiring precise LED current management.
Replacement Considerations
LM27965SQX/NOPB is the direct equivalent replacement for the discontinued LM27965SQX. Both parts share identical electrical specifications and pinouts. Verify that the active version maintains the same WQFN package dimensions. No functional changes are expected between the obsolete and current revisions.
