Mode: SW2103 (V1.1)                                                              www.ismartware
第 1 页 共 12 页    SW2103
Datasheet
Designed for Type-C Logic Detect and Control
Version 1.1
珠海智融科技有限公司
ZHUHAI ISMARTWARE TECHNOLOGY CO., LTD.
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Table of Content
1. General Description (4)
2. Applications (4)
3. Features (4)
4. Schematic Circuit Diagram (5)
5. Application Function Description (5)
6. Pin Configuration and Function (6)
6.1 Pin Configuration (6)
6.2 Pin Descriptions (6)
7. Absolute Maximum Ratings (7)
8. SWB (Single Wire Bus) (8)
8.1 Write Timing (8)
8.2 Read Timing (9)
9. Register List (10)
9.1 REG 00: Mode Configure (10)
9.2 REG 01:CTRL Register (10)
9.3 REG 02: IRQ Indication (11)
10. Mechanical and Packaging (11)
10.1 Package Summary (11)
10.2 Package Outline and Dimensions (12)
1. General Description
SW2103 is a USB Type-C logic detect and control IC, equipment with BC1.2 DCP support. It could realize the function of enabling the traditional USB device to support the transformation of Type-C interface. SW2103 uses CC pins to determine port attach/detach status and orientation, role type and current mode, provides VBUS enable signal output. It provides PMODE pin for current mode configure, swap key for role which makes it convenient in power bank applications. It also provides single wire bus which make it easy to dynamically configure role and current mode for phone and pads. It supports Battery Charging Spec BC1.2 for DCP. It is compatible with Apple mode and Samsung mode.
T he SW2103 have an alternate configuration as a DFP or UFP according to the Type-C specifications.
The CC logic block monitors the CC1 and CC2 pins for pullup or pulldown resistances to determine when a USB port have been attached, the orientation of the cable, and the role detected. The CC logic detects the Type-C current mode as standard, 1.5A or 3.0A depending on the role detected. VBUS detection is implemented to determine a successful attach in UFP and DRP.
2. Applications
•Power Bank
•Power Supply Adapter
•Car Charger
•Mobile phone and Pads
3. Features
•Support USB Type-C specification 1.1
•Support Strong-DRP/DRP/DFP/UFP role
•Support Type-C standard, 1.5A and 3A mode
•Support VBUS enable signal output, can be as USB ID control signal
•Provide key swap for Type-C role
•Provide VCONN power
•Support Dead Battery
•Support BC1.2 DCP
•Support Apple & Samsung device
•Support YD/T 1591-2009 Chinese telecommunication industry standard
•Single wire bus (rate < 5kbps)
•Under-V oltage lock out protection
•Available in QFN16 (3×3mm) package
•Operating voltage: 2.7V~6V(without DP/DM)
4. Schematic Circuit Diagram
SW2103
VBUS
VCC
GND
IRQ
CC2_TACH
CC1CC2
Vbus_En
SWB Type-C receptacle
50k
AP
1uF
GND
GND
VBUS
CC2
CC1GPIO
IRQ
Analog Switch
TX+TX-RX+RX-TX1+TX1-RX1+RX1-TX2+TX2-RX2+RX2-Micro-B receptacle D+D-GND
VBUS ID DP DP DM DM VBUS DM DP ID GND
Vbat
ID
VBUS SEL
SEL SEL 10k
10k
2.2k
Phone&Pad Application Diagram
5. Application Function Description    SW2103 support DFP/StrDRP/DRP/UFP role.
When it attached with Type-C device successfully, the
VBUS_EN and CC2_TACH will change according to role and orientation.
SW2103_Role_Function
Application Scene  (SW2103 VS device)
Detach
Attached
SW2103 role
device role SW2103 role device role Adapter VS Adapter
DFP
(VBUS_EN=LOW CC2_TACH=LOW)
DFP
detached
detached
Adpater VS Powerbank /phone/u-disk
StrDRP or DRP
or UFP
DFP
(VBUS_EN=HIGH
CC2_TACH=HIGH)typec转dp
UFP
Powerbank VS Adapter
StrDRP
(VBUS_EN=LOW CC2_TACH=LOW)
DFP
UFP
(VBUS_EN=LOW CC2_TACH=HIGH) DFP
Powerbank VS Powerbank
StrDRP rand role
(CC2_TACH=HIGH)
rand role

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