XL494 – PWM Controller – Xinluda

The Xinluda XL494 is a fixed-frequency PWM control IC in an SOP-16 package, built on the industry-standard TL494 architecture for switch-mode power supply designs.

The Xinluda XL494 is a single-chip pulse-width-modulation (PWM) control IC designed for switch-mode power supply (SMPS) applications. Built on the widely adopted TL494 architecture, the XL494 integrates all the building blocks required for a complete PWM control loop, including two error amplifiers, an on-chip adjustable oscillator, a dead-time control comparator, a 5V reference, and two output transistors for push-pull or single-ended operation. Supplied in a compact SOP-16 surface-mount package, it is a cost-effective controller for power-conversion designs that follow the established 494-type pinout.

Key Features

• Fixed-frequency PWM control IC in the TL494 family
• Operating supply voltage range: 7V to 40V
• Two on-chip error amplifiers for voltage and current feedback loops
• On-chip adjustable oscillator with a switching frequency range of approximately 1kHz to 200kHz
• Internal 5V reference regulator
• Dead-time control comparator for adjustable minimum dead time
• Two independent output transistors for push-pull or single-ended (common-emitter / emitter-follower) configurations
• Supports push-pull and buck topologies
• Typical quiescent current of 6mA
• SOP-16 surface-mount package; RoHS compliant
• Operating temperature range: -25 degrees C to +80 degrees C

Applications

• Switch-mode power supplies (SMPS) and AC-DC converters
• Desktop and server PC power supplies
• DC-DC push-pull and buck converters
• Solar / inverter power stages
• Industrial and telecom power modules
• General-purpose PWM control designs

Why Source XL494 from Pacific Component Xchange

The XL494 is a Xinluda-branded part with limited authorized-distributor coverage in North America and Europe, which makes it difficult to procure through mainstream channels. Pacific Component Xchange specializes in hard-to-find and obsolete power-management ICs and optocouplers, helping engineers and buyers secure parts like the XL494 even when standard catalog distributors show no stock.

Every order is backed by our authenticity and quality-assurance process to protect your build against counterfeit and substandard components, and we ship globally to support both prototype and production volumes. Because the XL494 is offered on a request-for-quote (RFQ) basis, our sourcing team can confirm current availability, lead time, packaging, and pricing tailored to your quantity. Request a quote from Pacific Component Xchange today and let our team handle the hard-to-find sourcing for you.