November 2011
© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSA880 / FSA881 • Rev. 1.0.3
FSA880 / FSA881 — USB Port 2:1 Switch with Accessory and Charger Detection
FSA880 / FSA881 – USB Port 2:1 Switch with Accessory
and Charger Detection
Features
Switch Type 2:1 USB
Switch Mechanism Automatic switching with Available
Interrupt
Accessory Detection
USB Data Cable
Chargers (CDP, DCP, Travel Adapter,
Car Kit-CEA-936-A)
Factory-Mode Cables
USB FS and HS 2.0 Compliant
USB Charging Battery Charging 1.1 Compliant
Charger Detect, DCD, OVT (28V)
UART RxD and TxD
VBAT 3.0 to 4.4V
Programmability I
2
C
ESD 15kV IEC 61000-4-2 Air Gap
Operating
Temperature -40°C to 85°C
Package 16-Lead UMLP
1.8x2.6x0.55mm, 0.4mm Pitch
JIG Option FSA880 – Active LOW
FSA881 – Active HIGH
Ordering Information FSA880UMX
FSA881UMX
Description
The FSA88x is a high-performance switch featuring
automatic switching and accessory detection for a USB port.
The FSA88x allows sharing of a common USB port to pass
USB data, as well as factory programmability. In addition,
the FSA88x integrates accessory detection of devices such
as USB chargers and factory data cables. The FSA88x can
be programmed for manual switching or automatic switching
of data paths. VBUS_IN has 28V over-voltage tolerance.
The difference between the FSA880 and the FSA881 is that
FSA880 JIG output is an open-drain, active-LOW output,
while FSA881 JIG is an active-HIGH, CMOS output.
Applications
Cellular Phones, Smart Phones
MP3 and PMP
Related Resources
For samples and questions, pleas e contact:
Analog.Switch@fairchildsemi.com.
FSA880 / FSA881 Demonstration Board
Typical Application
Figure 1. Mobile Phone Example
FSA9280A
FSA88x
USB CHA RGING
USB Data
FACTORY TEST
OVT
PROTECTION
© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSA880 / FSA881 • Rev. 1.0.3 2
FSA880 / FSA881 — USB Port 2:1 Switch with Accessory and Charger Detection
Block Diagram
Figure 2. Block Diagram
Pin Configuration
Figure 3. Pin Assignment (Through View)
Baseband
Processor
HS USB
INTB
I2C_SCL
I2C_SDA
DM_HOST1
DP_HOST1
I
2
C
HS USB
or UART
Interrupt
Float
Detect
Charger
Detect BC1.1
Switch
Control
and
I
2
C
Slave
Detection
28V OVT
2:1
MUX
V
BAT
ADC ID
Detect
JIG
BOOT
100k
W
V
DDIO
V
DDIO
Phone
Power
USB Port
V
BUS_IN
DM_CON
DP_CON
GND
ID_CON
FSA880
DM_HOST
DP_HOST
1
5 6 7 8
9
10
112
3
12
16 15 14 13
4
ID_CON DP_CON DM_CON V
BUS_IN
GND
I2C_SDA
I2C_SCL
INTB
V
BAT
BOOT JIG V
DDIO
DM_HOST
DP_HOST
DM_HOST1
DP_HOST1
© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSA880 / FSA881 • Rev. 1.0.3 24
FSA880 / FSA881 — USB Port 2:1 Switch with Accessory and Charger Detection
Physical Dimensions
Figure 24. 16-Lead Ultrathin Mo lded Leadless Package (UMLP), 1.8mm x 2.6mm x 0.55mm, 0.4mm Pitch
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without
notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most
recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which
covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/.
Part Number Operating Temperature Range Top Mark Package
FSA880UMX -40 to +85°C KU 16-Lead, Ultrathin Molded Leadless Package (UMLP),
1.8mm x 2.6mm x 0.55mm, 0.4mm Pitch
FSA881UMX -40 to +85°C KX 16-Lead, Ultrathin Molded Leadless Package (UMLP),
1.8mm x 2.6mm x 0.55mm, 0.4mm Pitch
RECOMMENDED
LAND PATTERN
NOTES:
A. PACKAGE DOES NOT FULLY CONFORM TO
JEDEC STANDARD.
B. DIMENSIONS ARE IN MILLIMETERS.
C. DIMENSIONS AND TOLERANCES PER
ASME Y14.5M, 1994.
D. LAND PATTERN RECOMMENDATION IS
BASED ON FSC DESIGN ONLY.
E. DRAWING FILENAME: MKT-UMLP16Arev4.
F. TERMINAL SHAPE MAY VARY ACCORDING
TO PACKAGE SUPPLIER, SEE TERMINAL
SHAPE VARIANTS.
SCALE : 2X
LEAD
OPTION 1
SCALE : 2X
LEAD
OPTION 2
PIN#1 IDENT
PIN#1 IDENT
PACKAGE
EDGE
TOP VIEW
BOTTOM VIEW
0.10 C
0.08 C
2.60
1.80
0.10 C
2X
2X
SIDE VIEW
0.10 C
0.05
0.00
0.10 C A B
0.05 C
0.55 MAX.
0.40
1
5
9
13
16
2.10
2.90
0.40
0.663
0.563
0.225
1
(15X)
(16X)
0.152
0.40
0.60
0.10 0.30
0.50
0.10
TERMINAL SHAPE VARIANTS
0.15
0.25 15X
PIN 1 NON-PIN 1
0.15
0.25
15X
0.30
0.50
0.15
0.25
0.30
0.50
0.15
0.25 15X
15X
Supplier 1
Supplier 2
PIN 1 NON-PIN 1
AB
C
SEATING
PLANE
0.45
0.35
0.55
0.45
0.25
0.15
R0.20
© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSA880 / FSA881 • Rev. 1.0.3 25
FSA880 / FSA881 — USB Port 2:1 Switch with Accessory and Charger Detection
