XL2804 – Darlington Transistor Array – Xinluda

The Xinluda XL2804 is an octal (8-channel) high-voltage, high-current NPN Darlington transistor array in a SOP-18 package, functionally equivalent to the ULN2804 with CMOS/PMOS-compatible inputs. Available for RFQ through Pacific Component Xchange.

The Xinluda XL2804 is an octal (eight-channel) high-voltage, high-current NPN Darlington transistor array supplied in a surface-mount SOP-18 package. It belongs to the widely deployed ULN280x peripheral-driver family and is the functional equivalent of the industry-standard ULN2804, making it a practical drop-in option for designs that interface low-level logic with relays, lamps, stepper motors, and other inductive or high-current loads. Within Xinluda’s portfolio, the XL2804 is the SOP-18 surface-mount variant; the pin-compatible DIP-18 through-hole version is offered as the XD2804.

Each of the eight channels pairs a Darlington-connected NPN transistor with an integral free-wheeling clamp diode, allowing the device to switch inductive loads safely without external suppression diodes. The XL2804 is specifically optimized for 6 V to 15 V high-level CMOS or PMOS logic inputs, distinguishing it from the TTL-input ULN2803 member of the same family.

Key Features

• Eight NPN Darlington output channels (octal driver) with common emitters
• Output current up to 500 mA per channel
• Output sustaining voltage rated to 50 V
• Integral output clamp (free-wheeling) diodes for switching inductive loads
• Inputs optimized for 6 V to 15 V high-level CMOS / PMOS logic
• Low output saturation voltage, VCE(sat) approximately 1.3 V
• Operating temperature range of -40 C to +85 C
• SOP-18 surface-mount package (pin-compatible DIP-18 version available as XD2804)

Applications

• Relay and solenoid drivers
• Stepper and DC motor drivers
• LED display and lamp drivers
• Printer hammer and logic-to-load interface circuits
• Industrial and consumer control boards

Why Source XL2804 from Pacific Component Xchange

The Xinluda XL2804 sees limited authorized-distributor stock, which can stall production runs and repairs that depend on this specific octal Darlington driver. Pacific Component Xchange specializes in hard-to-find and end-of-life power-management ICs and interface drivers, helping engineers and procurement teams secure the parts they need when mainline channels come up empty. Every XL2804 we supply is sourced for authenticity and traceability, with global shipping to keep your build on schedule. Need a quantity quote, lead time, or cross-reference to a ULN2804 equivalent? Submit an RFQ to Pacific Component Xchange today and our sourcing team will respond quickly with availability and pricing.