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LP3931ISQX/NOPB is listed in the LED Driver IC range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC LED DRV RGLTR PWM 24WQFN. Review the specifications below when checking this part for your BOM.
LED Driver IC specifications for LP3931ISQX/NOPB
- Description：IC LED DRV RGLTR PWM 24WQFN
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Type：DC DC Regulator
- Topology：Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：6
- Voltage - Supply (Min)：2.65V
- Voltage - Supply (Max)：2.9V
- Voltage - Output：5V
- Current - Output / Channel：120mA (Flash)
- Frequency：1MHz
- Dimming：PWM
- Applications：Camera Flash, Lighting
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：24-WFQFN Exposed Pad
- Supplier Device Package：24-WQFN (4x4)
- Grade：-
- Qualification：-
LED Driver IC datasheet and documents for LP3931ISQX/NOPB
LED Driver IC Overview
The LP3931ISQX/NOPB is a six-output DC-DC boost LED driver IC manufactured by Texas Instruments. It integrates a step-up regulator with pulse-width modulation (PWM) dimming capabilities for precise illumination control. The device supports a maximum output current of 120mA, including dedicated flash functionality. It is housed in a compact 24-WQFN package measuring 4x4 mm, designed for surface-mount installation. The component operates within an extended temperature range from -40°C to +85°C and complies with RoHS standards.
LED Driver IC Feature Summary
- Integrates a six-channel DC-DC boost converter for multi-LED array driving
- Supports PWM dimming for accurate brightness regulation
- Includes dedicated high-current output capability for camera flash applications
LED Driver IC Applications
- Mobile phone camera flash systems
- Multi-LED backlighting drivers
- Portable electronic device illumination
LED Driver IC Procurement Notes
Verify the specific suffix 'SQX' against the official datasheet to confirm tape-and-reel packaging configuration. Ensure the operating voltage and current requirements align with the 120mA limit per channel. Confirm that the 24-WQFN footprint matches the PCB layout constraints. Check for any recent product change notifications regarding pinout or electrical characteristics updates.
LED Driver IC Selection Notes
Select this component when a single-chip solution for driving multiple LEDs is required. The integrated boost topology eliminates external inductors if space allows, though external components are typically needed. Consider the thermal performance of the WQFN package under continuous load conditions. Verify compatibility with the system's microcontroller for PWM signal generation.
LED Driver IC Part Context
This part belongs to the LP3931 series of LED drivers from Texas Instruments. It is designed for applications requiring high-efficiency power conversion and precise light control. The series is commonly used in consumer electronics where size and power efficiency are critical design factors.
LED Driver IC Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's selection guide for direct replacements or compatible alternatives within the same product family.
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