FAIRCHILD FSA831

FSA831 — USB2.0 High-Speed (480Mbps) Charger
Detection with Isolation Switch
Features
Description
USB Battery Charging Rev. 1.2
Supports Data Contact Detect (DCD)
Dead Battery Provision (DBP)
with 30-Minute Timer
USB Detection
Isolation Switch Closes for
Charging Downstream Port (CDP)
Standard Downstream Port (SDP)
Switch Type
28V Over-Voltage Tolerance
-2V Under-Voltage Tolerance
VBUS
10-Lead MicroPak™
1.6 x 2.1mm, 0.5mm Pitch
Package
Ordering
Information
FSA831L10X
Applications
 MP3, Mobile Internet Device (MID), Cell Phone, PDA,
Digital Camera, Notebook and Netbook
The FSA831 is a charger-detection IC with an integrated
isolation switch for use with a micro/mini USB port. The
FSA831 detects battery chargers and is compliant with USB
Battery Charging Specification, Rev 1.2 (BC1.2). The
algorithm incorporates Data Contact Detection (DCD), which
ensures that the shorter, inner pins of the USB connector are
making contact prior to continuing with battery charger
detection. The device determines if a Dedicated Charging
Port (DCP), Charging Downstream Port (CDP), or a typical
PC host, called a Standard Downstream Port (SDP), is
connected. If a charger is detected, the FSA831 determines
whether the charger is a DCP or CDP. For SDP and CDP
detection, an internal isolation switch is closed to connect
the D+/D- lines of the USB cable to the resident USB
transceiver within the portable device. The FSA831
conforms to all the constraints for the Dead Battery Provision
(DBP) within the BC1.2 specification, including a 30-minute
timer that cannot exceed 45 minutes, per BC1.2.
Related Resources
 For samples and questions, please contact:
[email protected].
Typical Application
FSA831
CHG_AL_N
System on
Chip (SoC)
GOOD_BAT
DM_HOST
USB
PHY
Regulator
and Switch
Control
USB Port
OVT
V BUS
DM_CON
DP_CON
DP_HOST
V BUS_IN
DD+
SW_OPEN
Charger
Detect
Li+
Bat
Charger
ID
GND
GND
CHG_DET
Figure 1. Mobile Phone Example
© 2011 Fairchild Semiconductor Corporation
FSA831 • Rev. 1.0.2
www.fairchildsemi.com
FSA831 — USB2.0 High-Speed (480Mbps) Charger Detector with Isolation Switch
November 2011
0.10 C
2.10
2X
A
1.62
B
KEEPOUT ZONE, NO TRACES
OR VIAS ALLOWED
(0.11)
1.12
1.60
PIN1 IDENT IS
2X LONGER THAN
OTHER LINES
0.56
0.10 C
2X
TOP VIEW
(0.35) 10X
(0.25) 10X
0.50
RECOMMENDED LAND PATTERN
0.55 MAX
0.05 C
0.05 C
0.05
0.00
C
(0.20)
0.35
0.25
SIDE VIEW
D
0.65
0.55
DETAIL A
0.35
0.25
4
1
0.35
0.25
DETAIL A 2X SCALE
0.56
5
10
(0.29)
(0.15)
(0.36)
6
9
0.50
0.25 9X
0.15
1.62
0.35 9X
0.25
0.10
0.05
C A B
C
ALL FEATURES
BOTTOM VIEW
NOTES:
A. PACKAGE CONFORMS TO JEDEC
REGISTRATION MO-255, VARIATION UABD .
B. DIMENSIONS ARE IN MILLIMETERS.
C. DIMENSIONS AND TOLERANCES PER
ASME Y14.5M, 1994.
D. PRESENCE OF CENTER PAD IS PACKAGE
SUPPLIER DEPENDENT. IF PRESENT IT
IS NOT INTENDED TO BE SOLDERED AND
HAS A BLACK OXIDE FINISH.
E. DRAWING FILENAME: MKT-MAC10Arev5.
Figure 10. 10-Lead, MicroPak™
Part Number
Top Mark
Operating Temperature Range
Package Description
Packing
Method
FSA831L10X
KY
-40 to 85°C
10-Lead, MicroPak™ 1.6 x 2.1mm,
0.5mm Pitch
Tape & Reel
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/.
© 2011 Fairchild Semiconductor Corporation
FSA831 • Rev. 1.0.2
www.fairchildsemi.com
10
FSA831 — USB2.0 High-Speed (480Mbps) Charger Detector with Isolation Switch
Physical Dimensions
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PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification
Product Status
Advance Information
Formative / In Design
Preliminary
First Production
No Identification Needed
Full Production
Obsolete
Not In Production
Definition
Datasheet contains the design specifications for product development. Specifications may change
in any manner without notice.
Datasheet contains preliminary data; supplementary data will be published at a later date. Fairchild
Semiconductor reserves the right to make changes at any time without notice to improve design.
Datasheet contains final specifications. Fairchild Semiconductor reserves the right to make
changes at any time without notice to improve the design.
Datasheet contains specifications on a product that is discontinued by Fairchild Semiconductor.
The datasheet is for reference information only.
Rev. I61
© Fairchild Semiconductor Corporation
www.fairchildsemi.com