LM3432MH/NOPB

Description：IC LED DRVR RGLTR PWM 28HTSSOP
Series：-
Mfr：Texas Instruments
Package：Tube

SKU:a0e989b4d0fb Category: LED Drivers IC Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC LED DRVR RGLTR PWM 28HTSSOP
Series：-
Mfr：Texas Instruments
Package：Tube
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：28-PowerTSSOP (0.173", 4.40mm Width)
Supplier Device Package：28-HTSSOP
Grade：-
Qualification：-

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LM3432MH/NOPB

Overview

The LM3432MH/NOPB is a six-channel constant current LED driver IC manufactured by Texas Instruments. It utilizes a boost DC-DC topology to regulate output currents up to 40 mA per channel, supporting a maximum supply voltage of 40 V and an output voltage of 80 V. The device operates within a supply range of 6 V to 40 V and features an adjustable switching frequency. It supports both analog and PWM dimming methods and includes internal switches. The component is housed in a 28-HTSSOP package and is rated for operation between -40°C and +125°C.

Feature Summary

Six-channel constant current regulation for uniform LED brightness
Integrated boost converter with internal power switches
Supports analog and pulse-width modulation dimming control
Thermal shutdown protection for enhanced reliability

Applications

LED backlighting systems
Automotive lighting applications
Industrial lighting solutions

Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm pinout compatibility and thermal characteristics. Ensure that the selected variant matches the required operating temperature range and packaging style for your design. Cross-reference the datasheet revision date to validate electrical parameters before finalizing procurement decisions.

Selection Notes

Select this component when designing high-brightness LED arrays requiring independent channel control. The boost topology is suitable for driving LEDs with forward voltages exceeding the input supply. Consider the 28-pin HTSSOP package constraints for PCB layout and thermal management requirements during the initial schematic capture phase.

Part Context

This part belongs to the LM3432 series of LED drivers from Texas Instruments. The series is engineered for multi-channel applications where precise current matching across outputs is critical. The MH/NOPB designation indicates a specific package type and lead-free compliance status within the broader product family.