SLG55544
USB Charging Port
Power Switch and Controller
ꢀꢀꢀꢀ
General Description
Pin Configuration
Renesas 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.
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.
VIN
DM_OUT
DP_OUT
ILIM_SEL
1
2
3
4
12
11
10
9
VOUT
DM_IN
DP_IN
NC
SLG55544
Features
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•
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Meets Battery ChargingSpecificationBC1.2 forDCPand
CDP
Meets Chinese Telecommunications Industry Standard
YD/T 1591-2009
Supports Non-BC 1.2 charging modes via Automatic se-
lection
GND
- DM/DPDivider Modes 2.7V/2.0V (1A) & 2.0V/2.7V (2A)
- DM/DP 1.2V Mode
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
16-pin TQFN
(Top View)
•
Applications
•
•
•
•
•
•
•
•
•
•
USB Ports/Hubs
Notebook PCs
Universal Wall Charging Adapter
TQFN-16 Package / MSL-1
UL Listed and CB File No. E468659
Block Diagram
VOUT
VIN
EN
Power Switch
Control
Circuitry
ILIM_H
ILIM_L
Current Limit
Switch
FAULT#
ILIM_SEL
Auto
Discharge
CTL1
CTL2
CTL3
Charge
Logic
DM_OUT
DP_OUT
Charging
Downstream
Port Mode BC
Charge Mode
Host
Sense
DM_IN
DP_IN
Select
Divider
Mode
High Band-
width
Switch
Shorted/Divider
Mode Switch
Dedicated
Sense
BC 1.2 DCPMode
/ 1.2 V Mode
©2022 Renesas Electronics Corporation
000-00055544-104
Rev1.04
Revised February 8, 2022