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PDF MAX14566E Data sheet ( Hoja de datos )
| Número de pieza | MAX14566E | |
| Descripción | USB Host Charger Identification Analog Switches | |
| Fabricantes | Maxim Integrated Products | |
| Logotipo |  |
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19-5293; Rev 1; 3/11
EVAALVUAAILTAIOBNLEKIT
USB Host Charger Identification
Analog Switches
General Description
The MAX14566E/MAX14566AE/MAX14566BE are sec-
ond-generation USB devices that combine Hi-Speed
USB analog switches with a USB host charger (dedicated
charger) identification circuit. These devices support both
the latest USB Battery Charging Specification Revision 1.2
including data contact detection and a set resistor bias
for Apple-compliant devices as well as legacy USB D+/D-
short detection using data line pullup. The MAX14566E
has a pMOSFET open-drain control output (CEN) and the
MAX14566AE has an nMOSFET open-drain control output
(CEN) to restart the peripheral connected to the USB host.
These devices feature high-performance Hi-Speed USB
switches with low 4pF (typ) on-capacitance and low 4.0I
(typ) on-resistance. In addition, the devices feature a
single digital input (CB) to switch between pass-through
mode and autodetection charger mode. The USB host
charger identification circuit allows a host USB port to
support USB chargers with shorted DP/DM detection
and to provide support for Apple-compliant devices
using a resistor bias on USB data lines. When an Apple-
compliant device is attached to the port in autodetection
charger mode, the devices supply the voltage to the DP
and DM lines from the internal resistor-divider. If a USB
Revision 1.2-compliant device is attached, the devices
short DP and DM to allow correct charger detection. The
MAX14566BE features an additional digital input (CB1)
to allow forced charger mode.
These devices have enhanced, high electrostatic dis-
charge (ESD) protection on the DP and DM inputs up
to Q15kV Human Body Model (HBM). All the devices
are available in an 8-pin (2mm x 2mm) TDFN package,
and are specified over the -40NC to +85NC extended
temperature range.
Features
S Hi-Speed USB Switching
S Low 4.0pF (typ) On-Capacitance
S Low 4.0I (typ) On-Resistance
S Ultra-Low 0.1I (typ) On-Resistance Flatness
S +2.8V to +5.5V Supply Range
S Ultra-Low 3µA (typ) Supply Current
S Automatic Current-Limit Switch Control
S Automatic USB Charger Identification Circuit
S ±15kV High ESD HBM Protection On DP/DM
S 2mm x 2mm, 8-Pin TDFN Package
S -40NC to +85NC Operating Temperature Range
Applications
Laptops
Netbooks
Universal Charger including iPodM/iPhoneM Chargers
Ordering Information/
Selector Guide
PART
PIN-
PACKAGE
CLS
TOP
CONTROL MARK
MAX14566EETA+
MAX14566AEETA+
MAX14566BEETA+
8 TDFN-EP*
8 TDFN-EP*
8 TDFN-EP*
CEN
CEN
—
ADJ
ADK
BMR
Note: All devices are specified over the -40°C to +85°C oper-
ating temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Typical Operating Circuit
EXTERNAL
POWER SUPPLY
5V SWITCHING
POWER SUPPLY
OVERCURRENT PROTECTOR
CEN
Li+
BATTERY
LAPTOP CHIPSET
USB
TRANSCEIVER
STANDBY
CEN
TDM DM
TDP MAX14566E DP
CB
VBUS
D- USB
D+ A CONNECTOR
GND
USB A
USB A
APPLE DOCK APPLE iPod
CONNECTOR DOCK OR iPhone
MICRO B
PHONE OR MP3
PLAYER
MICRO-USB
CONNECTOR
iPhone and iPod are registered trademarks of Apple, Inc.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
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USB Host Charger Identification
Analog Switches
Test Circuits/Timing Diagrams (continued)
MAX14566E
MAX14566AE
MAX14566BE
IN+ RS TDP
DP
IN- RS TDM
DM
CB
VCC
V+
VIN+
0V
V+
VIN-
0V
VOUT+
V+
0V
VOUT-
V+
0V
tPLHX
tPHLY
50%
50%
50%
50%
Figure 2. Output Signal Skew
50%
50%
tPHLX
50%
tPLHY
50%
OUT+ RISE-TIME PROPAGATION DELAY = tPLHX OR tPLHY
RL
FALL-TIME PROPAGATION DELAY = tPHLX OR tPHLY
tSK(O) = |tPLHX - tPLHY| OR |tPHLX - tPHLY|
tSK(P) = |tPLHX - tPHLX| OR |tPLHY - tPHLY|
OUT-
RL
tINRISE
90%
10%
tINFALL
90%
10%
tOUTRISE
90%
10%
tOUTFALL
90%
10%
5
Datasheet pdf - http://www.DataSheet4U.net/
5 Page 
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USB Host Charger Identification
Analog Switches
with CB1. Connect CB1 to a logic-level low for auto mode
(AM) or connect CB1 to a logic-level high for forced
dedicated-charger mode (FM).
Autodetection
All the devices feature autodetection charger mode for
dedicated chargers and USB masters. CB must be set
low to activate autodetection charger mode.
In autodetection charger mode, the MAX14566E moni-
tors the voltages at DM and DP to determine the type of
the device attached. If the voltage at DM is +2.3V (typ)
or higher and the voltage at DP is +2.3V (typ) or lower,
the voltage stays unchanged.
If the voltage at DM is forced below the +2.3V (typ)
threshold, the internal switch disconnects DM and DP
from the resistor-divider and DP and DM are shorted
together for dedicated charging mode.
If the voltage at DP is forced higher than the +2.3V (typ)
threshold, the internal switch disconnects DM and DP
from the resistor-divider and DP and DM are shorted
together for dedicated charging mode.
Once the charging voltage is removed, the short between
DP and DM is disconnected for normal operation.
Automatic Peripheral Reset
The MAX14566E/MAX14566AE feature automatic current-
limit switch control output. This feature resets the peripher-
al connected to VBUS in the event the USB host switches to
or from standby mode. CEN/CEN provide a 1s (typ) pulse
on the rising or falling edge of CB (Figures 4, 5, and 6).
Table 1. Digital Input State (MAX14566E/MAX14566AE)
CB MODE
DP/DM
0 AM Autodetection Circuit Active
1 PM
Connected to TDP/TDM
COMMENT
Auto Mode
USB Traffic Active
INTERNAL RESISTOR-DIVIDER
Connected
Not Connected
Table 2. Digital Input State (MAX14566BE)
CB CB1
00
01
1X
X = Don't care.
MODE
AM
FM
PM
STATUS
Auto Mode
Forced Dedicated-Charger Mode: DP/DM Shorted
Pass-Through (USB) Mode: Connect DP/DM to TDP/TDM
USB PERIPHERAL
ATTACH
STANDBY
CB AM
CEN
VBUS 5V
PM
tVBT
USB CONNECTION
AM
CHARGING CURRENT
1000mA 500mA
Figure 4. MAX14566E Peripheral Reset Timing Diagram
1000mA
PM
500mA
1000mA
11
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11 Page | ||
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| PDF Descargar | [ Datasheet MAX14566E.PDF ] | |
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