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AL5809-60P1-7

60V 100mA linear LED driver, adjustable current, -40mV/C temp comp, PowerDI-123

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Manufacturer Part：

AL5809-60P1-7

Package：

PowerDI-123 (2.0 x 1.2 x 0.85mm)

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Description

Product Overview

The AL5809-60P1-7 from Diodes Incorporated is a 60V, 100mA linear LED driver with adjustable constant current output set by an external resistor. It features -40mV/C temperature coefficient, wide 2.8V to 60V operating range, and thermal shutdown in a PowerDI-123 package.

Key Specifications

Manufacturer Diodes Incorporated
Type Linear Constant Current LED Driver
Maximum Voltage 60V
Output Current Up to 100mA (adjustable)
Reference Voltage (ISET) 1.2V typical
Current Accuracy +-5%
Temperature Coefficient -40mV/C (compensating)
Operating Voltage 2.8V to 60V
Thermal Shutdown 155C typical
Package PowerDI-123 (2.0 x 1.2mm)
Operating Temperature -40C to +105C

Features

  • 60V maximum operating voltage
  • Adjustable constant current up to 100mA
  • Negative temperature coefficient for LED current reduction at high temp
  • +-5% current accuracy
  • Wide operating range: 2.8V to 60V
  • Thermal shutdown protection at 155C
  • Small PowerDI-123 package
  • Only one external resistor needed
  • EMI-free linear operation

Applications

  • LED lighting and signage
  • LED backlight for LCD displays
  • Automotive interior lighting
  • General-purpose constant current source

The Diodes Incorporated AL5809-60P1-7 is a 60V linear constant current LED driver designed to provide a simple and cost-effective solution for driving LED strings. The output current is set by a single external resistor connected to the ISET pin, with the current determined by ILED = 1.2V / RSET. The device features a built-in negative temperature coefficient of -40mV/C at the ISET pin, which gradually reduces LED current at elevated temperatures to protect the LEDs from thermal damage. The wide 2.8V to 60V operating range supports long LED strings. The compact PowerDI-123 package minimizes board space while providing good thermal performance. Thermal shutdown at 155C provides additional protection.

The AL5809-60P1-7 operates as a linear constant current regulator: 1) Current Regulation: An internal bandgap reference generates a 1.2V reference at the ISET pin. An external resistor RSET from ISET to GND sets the LED current: ILED = 1.2V / RSET. An internal current mirror amplifies this reference current to drive the LED string. 2) Temperature Compensation: The negative temperature coefficient of -40mV/C reduces the ISET reference voltage as temperature increases, automatically decreasing LED current to prevent thermal overstress. 3) Linear Regulation: The device operates as a series pass element, dropping excess voltage across its internal transistor. The dropout voltage is the minimum headroom required for regulation, typically 1.8V. 4) Thermal Protection: When junction temperature reaches 155C, the thermal shutdown circuit disables the output to prevent device damage.

Pin Name Type Function
1 ISET Input Current set resistor connection (1.2V reference)
2 GND Ground Ground
3 CATHODE Output LED cathode connection (internal NPN collector)
  • LED signage and channel letter lighting with long series strings
  • Automotive interior LED lighting with thermal protection
  • Constant current bias for sensor bridge circuits
Manufacturer Part Number Package Notes
Diodes Inc AL5809-30P1-7 PowerDI-123 30V version
onsemi NSI45020AT1G SOD-123 20mA, 45V linear LED driver
Infineon BCL4050E6327HTSA1 SOT-23-5 50V, 50mA LED driver
Microchip MIC4801YME-TR SOT-89-3 50mA linear LED driver
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All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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