Overview of ILD8150E

The ILD8150E from Infineon Technologies is an advanced LED driver IC that utilizes hybrid dimming technology. Designed to achieve dimming down to 0.5% of the target current, it supports a wide input voltage range from 8V DC to 80V DC. This makes it well-suited for applications operating near SELV (Safety Extra-Low Voltage) thresholds, ensuring enhanced safety in low-voltage environments.

The ILD8150E is ideal for both general and professional lighting applications that require precise and deep dimming performance. It delivers smooth, flicker-free dimming with no visible artifacts or audible noise.

The driver supports PWM input signals ranging from 250 Hz to 20 kHz for analog dimming, providing output currents from 100% down to 12.5%. For lower dimming levels (12.5% to 0.5%), it switches to hybrid dimming mode using high-frequency modulation at 3.4 kHz, ensuring flicker-free operation even at ultra-low brightness.

Applications

• LED lighting
• LED driver

Key Features of the Infineon ILD8150E LED Driver IC

Features

• Wide input voltage range from 8 to 80V
• Capable to provide output current up to 1A
• Frequency range is 300 – 600kHz
• Up to 2MHz switching frequency
• Digital soft-start
• PWM dimming input up to 20kHz
• Hybrid output dimming
• Typical ±3% output current accuracy
• Very low LED current drift over temperature
• Undervoltage lockout
• Cycle by cycle current limit
• PG-DSO-8 package with exposed pad
• Overtemperature protection

The ILD8150E offers high-resolution digital PWM dimming detection and low-power fault handling, making it well-suited for integration with microcontrollers. It also supports a dim-to-off feature, including an integrated pull-down transistor that prevents unwanted LED blinking during low-brightness or off states.

This LED driver can deliver up to 1.5A of current using its built-in high-side switch. With efficiency exceeding 95%, the ILD8150E enables high-power lighting designs. It also features a soft-start mechanism to protect the power stage from inrush current, and a shunt resistor for setting a flexible maximum output current.

The IC ensures highly accurate and consistent output current across a wide range of input voltages and load conditions. This precision makes it particularly suitable for applications like flat panel lighting or tunable white systems, where uniform brightness and color consistency are critical.

Additional safety and performance features include under-voltage lockout (UVLO), over-temperature protection, and bootstrap voltage support, which contribute to the chip’s reliability in professional lighting applications.

The ILD8150E comes in a compact DSO-8 package that supports wave soldering. For enhanced thermal performance, it includes an exposed pad that helps efficiently dissipate heat.

Pinout of Infineon ILD8150E LED Driver IC

Infineon ILD8150E LED Driver IC

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Infineon ILD8150E LED Driver IC Overview