ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC LED DRV RGLTR PWM 40MA 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)：6V
- Voltage - Supply (Max)：40V
- Voltage - Output：80V
- Current - Output / Channel：40mA
- Frequency：-
- Dimming：Analog, PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：24-WFQFN Exposed Pad
- Supplier Device Package：24-WQFN (4x5)
- Grade：-
- Qualification：-
Download product information
Overview
The LM3432SQX is a six-channel current regulator designed for LED backlight applications. It operates as a DC-DC boost converter with an internal switch, supporting output voltages up to 80V and channel currents of 40mA. The device accepts supply voltages between 6V and 40V. It features analog and PWM dimming capabilities and is housed in a 24-WQFN (4x5) package with exposed pad. The component supports surface mount installation and functions within a junction temperature range of -40°C to 125°C.
Feature Summary
- Six-channel constant current regulation architecture
- Integrated high-voltage boost topology
- Dual-mode dimming support for analog and PWM signals
Applications
- LED backlight systems
- Multi-segment display illumination
- High-voltage LED string driving
Procurement Notes
Verify the specific suffix 'SQX' against official Texas Instruments documentation to confirm pinout and thermal pad configuration. Ensure compatibility with the 24-WQFN footprint during PCB layout. Check for obsolescence status as some variants may be discontinued or replaced by newer generations. Confirm RoHS compliance requirements for the target assembly process.
Selection Notes
Select this component when designing multi-zone LED backlights requiring independent channel control. The internal boost converter simplifies design by eliminating external switching components. Verify that the input voltage range aligns with the system power supply. Ensure thermal management strategies account for the exposed pad requirement in the WQFN package.
Part Context
This part belongs to the LM3432 family of LED drivers from Texas Instruments. It is specifically engineered for applications requiring multiple regulated current outputs from a single controller. The device integrates protection features typical of industrial-grade PMICs. It serves as a solution for complex lighting arrays where uniform brightness across multiple channels is critical.
Replacement Considerations
Check for LM3432BSQ/NOPB as a potential variant within the same family. Verify if newer Texas Instruments LED driver series offer improved efficiency or additional integration. Confirm pin-to-pin compatibility before substitution to avoid redesigning the printed circuit board.
