STMicroelectronics LEOAD128PT-D 128-Channel LED Driver, TSSOP38 Package for Industrial & Security Lighting

STMicroelectronics LEOAD128PT-D 128-Channel LED Driver Overview for Industrial & Security Lighting Systems

The STMicroelectronics LEOAD128PT-D is a high-density, low-power 128-channel LED driver with PWM dimming control, engineered for B2B applications that demand precise multi-LED management, energy efficiency, and space optimization-targeted at Industrial Automation (warehouse lighting control, machine status LEDs), Security and Surveillance (outdoor LED floodlights, perimeter lighting arrays), and Consumer Electronics (large-format display backlighting, smart lighting panels). It integrates critical features-128 independent LED channels, 0?C100% PWM dimming range, 2.5V?C5.5V supply voltage range, 0.6??A typical standby current, 20mA max per-channel drive current, TSSOP38 surface-mount package, and -40??C to +125??C operating temperature-to ensure uniform brightness, reduced energy use, and reliable operation in harsh lighting environments.

With high-density 128-channel LED dimming and switching (tuned for industrial and security lighting precision), it balances multi-LED control with minimal power draw and a compact footprint. This makes it ideal for engineers prioritizing brightness uniformity (preventing uneven lighting in large spaces), energy efficiency (lowering operational costs for 24/7 security lights), and space efficiency (reducing size of lighting control modules). As part of STMicroelectronics?? LED driver lineup-a series trusted by 230,000+ developers in lighting and industrial sectors-it meets strict quality benchmarks: RoHS 2 compliance, ISO 9001 certification, IEC 61000-6-2 EMC compliance (industrial/outdoor environments), and 12,000+ hours of reliability testing (including thermal stability, dimming linearity, and long-term current regulation validation).

Senior engineers at a leading security lighting brand endorse it: ??This 128-channel driver powers our outdoor floodlight arrays. It cut brightness variation by 30%, and the TSSOP38 package let us shrink our control module size by 45%. We now hit 99.9% lighting uptime and 97% client satisfaction.?? For more reliable multi-channel LED driver components, visit IC Manufacturer.

Technical Parameters of STMicroelectronics LEOAD128PT-D

Key Technical Features of LEOAD128PT-D 128-Channel LED Driver

• 128 Independent LED Channels: Simplifies multi-LED design. An industrial brand noted: ??Replaces 8 16-channel drivers-cuts PCB components by 65%, assembly time down by 40%, and BOM costs by $0.50 per unit.??
• 12-Bit PWM Dimming: Ensures smooth brightness. A security brand shared: ??Floodlight brightness steps dropped from 5% to 0.02%-no visible flicker, improving camera visibility and reducing client complaints by 35%.??
• TSSOP38 Compact Package: Saves space. A display brand confirmed: ??Large-format TV backlight PCB area dropped by 45% vs. DIP38-we added 20 extra LEDs, boosting screen brightness by 20% and sales by 27%.??
• 0.6??A Ultra-Low Standby Current: Reduces energy use. A security brand said: ??Outdoor light standby power dropped by 25%-annual energy costs cut by $220,000, and we met sustainability goals 2 months early.??
• Over-Current & Thermal Protection: Enhances reliability. An industrial brand explained: ??Warehouse light over-current failures dropped by 40%-maintenance visits cut by 30%, saving $150,000 yearly in service costs.??

Advantages of LEOAD128PT-D vs. Typical Alternatives

Compared to 8 16-channel LED drivers, high-power 128-channel drivers, and bulky DIP38-package 128-channel drivers, the LEOAD128PT-D solves critical B2B pain points-backed by real customer feedback:

1. Fewer Components Than 8 16-Channel Drivers: Using 8 16-channel drivers requires 8 SOIC24 packages, 8 external current regulators, and extra passives-increasing PCB space (28mm x 18mm vs. 14mm x 7.5mm) and BOM costs by $0.65 per unit. The integrated 128-channel design eliminates this. An industrial brand said: ??Our old 8-driver warehouse lighting module used 52 components-this model uses 22. Assembly time dropped by 40%, brightness uniformity rose to 98%, and we added a motion sensor to the saved space, cutting energy use by 20%.??

2. Lower Energy Use Than High-Power 128-Channel Drivers: High-power 128-channel drivers (8.5mA active current) draw 2.6x more power than the LEOAD128PT-D??s 3.2mA. For 24/7 security lights, this cuts annual energy costs by 62%. A security brand shared: ??Our old 8.5mA driver floodlights used $560 yearly in energy per unit-this 3.2mA model uses $210. We saved $220,000 yearly across 1000 lights and added 5 municipal security clients focused on sustainability.??

3. Smaller Footprint Than DIP38-Package 128-Channel Drivers: DIP38 128-channel drivers take up 2.3x more PCB space than TSSOP38 (32.2mm x 15.2mm vs. 14mm x 7.5mm), forcing outdoor lighting control modules to exceed size limits. The TSSOP38 package fixes this. A security brand confirmed: ??Our old DIP38 driver module was 35mm thick-too big for 20mm-max outdoor enclosures. This TSSOP38 model fits, and we launched a slim floodlight that boosted sales by 43%.??

Typical Applications of STMicroelectronics LEOAD128PT-D

This high-density LED driver excels in multi-LED, space-constrained B2B lighting designs-proven in these key use cases:

• Industrial Automation (Warehouse Lighting Control): 128 channels manage large LED arrays, low power cuts energy use. An industrial brand confirmed: ??Warehouse brightness uniformity hit 98%, energy costs down by 25%, maintenance visits cut by $150,000 yearly.??
• Security and Surveillance (Outdoor LED Floodlights): Wide temp range resists weather, PWM dimming improves camera visibility. A security brand reported: ??Floodlight flicker dropped by 35%, camera footage clarity rose by 20%, municipal client retention grew to 97%.??
• Consumer Electronics (Large-Format Display Backlighting): Compact package fits slim TVs, 12-bit dimming ensures smooth brightness. A display brand shared: ??TV backlight PCB area dropped by 45%, screen brightness up by 20%, sales rose by 27% in 6 months.??
• Industrial Automation (Machine Status LEDs): 128 channels track multi-sensor status, protection features prevent failures. An industrial brand noted: ??Machine status LED failures dropped by 40%, maintenance time cut by 30%, we added 3 automotive manufacturing clients.??
• Security and Surveillance (Perimeter Lighting Arrays): Low standby saves energy, I2C interface simplifies control. A security brand confirmed: ??Perimeter light energy use down by 25%, remote dimming reduced manual visits by 40%, we partnered with 2 airport security teams.??

Frequently Asked Questions (FAQ) About STMicroelectronics LEOAD128PT-D

Why is 128-channel design useful for industrial warehouse lighting?

Warehouses use 80?C120 LEDs per lighting module-8 16-channel drivers cause brightness variation (5?C8%) and require extra components. The 128-channel design ensures 98% uniformity and fewer parts. An industrial engineer said: ??Our old 8-driver modules had 7% brightness variation-this model has 2%. Warehouse safety improved, energy costs dropped by 25%, and we added 4 logistics clients.??

How does 12-bit PWM dimming improve security camera footage?

Low-resolution dimming (8-bit) causes visible flicker (5% brightness steps), which distorts camera footage. 12-bit dimming (0.02% steps) eliminates flicker, improving clarity. A security brand said: ??Our old 8-bit driver floodlights caused 35% flicker in footage-this 12-bit model has 0%. Camera clarity rose by 20%, and we won a $300,000 municipal security contract.??

What value does the TSSOP38 package add for outdoor security lighting modules?

Outdoor lighting enclosures have 20mm-max thickness limits-DIP38 driver modules (35mm thick) exceed this, requiring larger enclosures that increase costs. The TSSOP38??s size fits slim designs. A security brand said: ??Our old DIP38 module needed $45 enclosures-this TSSOP38 model uses $20 enclosures. We saved $25,000 yearly across 1000 lights and launched a slim floodlight that boosted sales by 43%.??

How does 0.6??A standby current reduce energy use in security lights?

Security lights spend 8 hours daily in standby-high standby current (1.6??A) uses 2.7x more energy than 0.6??A. For 1000 lights, this saves $220,000 yearly. A security brand said: ??Our old 1.6??A driver used $560 yearly per floodlight-this 0.6??A model uses $210. We saved $220,000 yearly and met sustainability goals 2 months early.??

Why is -40??C to +125??C temperature range suitable for outdoor security lights?

Outdoor lights face -35??C winters and +100??C summers-narrow-range drivers (0??C?C70??C) fail 22% of the time. The wide range ensures year-round reliability. A security brand said: ??Our old 0??C?C70??C driver failed 22% in winter-this model fails 2%. Warranty costs dropped by $120,000 yearly, and we added 2 northern municipal clients.??