Power & Power Management

Overview

The SLG55544 is a combination of current-limited USB port power switch with a USB 2.0 high-speed data line (D+/D-) switch and USB charging port identification circuit. The recommended applications include notebook PCs and other intelligent USB host devices. The wide bandwidth (2.6 GHz) data‑line switch also features low capacitance and low on resistance, allowing signals to pass with minimum edge and phase distortion. The SLG55544 monitors D+ and D-, providing the correct hand-shaking protocol with compliant client devices.

SLG55544 Block Diagram
SLG55544 Block Diagram
  • Meets Battery Charging Specification BC1.2 for DCP and CDP
  • Meets Chinese Telecommunications Industry Standard YD/T 1591-2009
  • Supports Non-BC 1.2 charging modes via Automatic selection
  • Support Smart-CDP function - Automatic CDP/SDP mode support for Always data Communication
  • Compatible with USB 2.0/3.0 power switch requirements
  • 73 mΩ (typ) high side MOSFET
  • Adjustable Current Limit up to 3.0 A (typ)
  • Pb-Free / RoHS Compliant
  • Halogen-Free
  • TQFN-16 Package / MSL-1
  • UL Listed and CB File No. E468659

Applications

  • USB Ports/Hubs
  • Notebook PCs
  • Power bank
  • Car charger
  • Universal Wall Charging Adapter

Documentation

Title Type Date
SLG55544 Datasheet
PDF439 KB
Datasheet
BCID Brochure
PDF457 KB
Brochure
UL Certificate of Compliance for SLG55544, SLG55546, SLGC55544C
PDF236 KB
Certificate
CB Test Certificate for SLG55544, SLG55546, SLGC55544
PDF178 KB
Certificate
USB Routing Layout Guidelines for Dialog SLG5554x BCID ICs
PDF261 KB
Other

Design & Development

Software Downloads

Title Type Date
Altium BCID CAD Symbols and Footprints
ZIP24 KB
PCB Design Files
Eagle BCID CAD Symbols and Footprints
ZIP4 KB
PCB Design Files

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Explore ECAD Models

Product Options

    Processing table
    Part Number
    Pkg. Type
    Carrier Type
    Buy / Sample
    SLG55544V
    play_circleActive
    memory
    view_in_ar
    		TQFN-16 Tape & Reel
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