Apple | USB Power Adapter | MAX14630/MAX14632 USB Charger Adapter Emulators

EVALUATION KIT AVAILABLE
MAX14630/MAX14632
USB Charger Adapter Emulators
General Description
Benefits and Features
The MAX14630/MAX14632 are USB adapter emulators
with automatic host charger identification circuitry for
USB dedicated chargers.
SOptimized for Charging Adapters
Flexible Device and Adapter Connection Order
Convenient CB Pin Controls the Charging Mode
The devices allow USB wall adapters, travel chargers,
and other dedicated chargers to identify themselves
as a USB dedicated charger to USB devices, an Apple
charger to Apple products, and a Samsung Galaxy
dedicated charger port to legacy D+/D- short detection
devices that use the D+ pullup of the USB transceiver.
SFaster Charging
Apple 2A Charging Capability in Autodetection
Mode
Samsung Galaxy Tablet 2A Charging Capability
(MAX14630)
The devices feature a control input that allows for charger
mode selection. The MAX14630 supports both Apple 2A
and USB Battery Charger (BC) revision 1.2 specification
compliant devices in Autodetection 2A mode and Samsung
Galaxy Tablet 2A devices in SS 2A mode. The MAX14632
supports Autodetection 2A mode as well as Autodetection
1A mode for compatibility with most Apple and USB BC
compliant devices.
The devices are available in a 5-pin (2.9mm x 1.6mm)
TSOT package and are specified over the -40NC to
+85NC extended temperature range.
Applications
SImproved Charger Interoperability
Meets New USB BC Revision 1.2 Specification
Backward Compatible with Previous USB BC
Revisions
Meets China YD/T1591-2009 Charging Specification
SGreater User Flexibility
CB Pin Controls Charger Mode
SSave Board Space
2.9mm x 1.6mm, 5-Pin TSOT Package
Ordering Information appears at end of data sheet.
USB Wall Charger and Travel Adapter
USB Car Charger and Cigarette Lighter Adapter
Universal Charger including iPod®/iPad®/iPhone®
Typical Operating Circuit
VCC
0.1µF
GND
MAX14630
MAX14632
DP
D+
DM
DC-DC
GND
CB
D-
VCC
USB A
CONNECTOR
VBUS
150µF
iPod, iPad, and iPhone are registered trademarks of Apple, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
19-6386; Rev 1; 3/13
MAX14630/MAX14632
USB Charger Adapter Emulators
ABSOLUTE MAXIMUM RATINGS
(All voltages referenced to GND.)
VCC, CB, DP, DM.....................................................-0.3V to +6V
Continuous Current into Any Terminal............................. Q50mA
Continuous Power Dissipation (TA = +70NC)
TSOT (derate 4.8mW/NC above +70NC) ...................386.5mW
Operating Temperature Range........................... -40NC to +85NC
Maximum Junction Temperature......................................+150NC
Storage Temperature Range............................. -65NC to +150NC
Lead Temperature (soldering, 10s).................................+300NC
Soldering Temperature (reflow) ......................................+260NC
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
PACKAGE THERMAL CHARACTERISTICS (Note 1)
TSOT
Junction-to-Ambient Thermal Resistance (BJA­).........207NC/W
Junction-to-Case Thermal Resistance (BJC)................50NC/W
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
ELECTRICAL CHARACTERISTICS
(VCC = 3.0V to 5.5V, TA = -40NC to +85NC, unless otherwise noted. Typical values are at VCC = +5.0V, TA = +25NC, unless otherwise
noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
5.5
V
POWER SUPPLY
Operating Power-Supply Range
VCC
VCC Supply Current
ICC
POR
POR Delay
Apple divider valid range
3
4.75
5.5
V
42
µA
VCC = 5.0V
25
1.5
V
100
ms
tPOR
VDP, VDM
ANALOG SWITCH
Analog Signal Range
On-Resistance of DP/DM Short
RSHORT
0
VCB = 0V, VDP = 0.7V, IDM_SINK = 100µA
to GND
4.5
VCC
V
11
ω
DYNAMIC
CB Switching Time
tON
CB = VCC to 0, 0 to VCC
RPD
4
µs
INTERNAL RESISTORS
DP/DM Short Pulldown
40VCC Bias
54VCC Bias
25VCC Bias
Maxim Integrated
350
500
700
kω
39
40
41
%VCC
52.6
53.6
54.6
%VCC
24
25
26
%VCC
2
MAX14630/MAX14632
USB Charger Adapter Emulators
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 3.0V to 5.5V, TA = -40NC to +85NC, unless otherwise noted. Typical values are at VCC = +5.0V, TA = +25NC unless otherwise
noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LOGIC INPUT (CB)
CB Input Logic-High
CB Input Logic-Low
CB Input Leakage Current
VIH
1.4
VIL
ICB
0 ≤ VIN ≤ VIL and VIH ≤ VIN ≤ VCC,
VCC = 5.5V
V
-1
0.4
V
1
µA
COMPARATOR CHARACTERISTICS
(VCC = 4.75V to 5.5V, TA = -40NC to +85NC, unless otherwise noted. Typical values are at VCC = +5.0V, TA = +25NC, unless otherwise
noted.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
DM1 Comparator Threshold
VDM1F
DM falling
DM2 Comparator Threshold
VDM2F
DM falling
DM2 Comparator Hysteresis
DP Comparator Threshold
VDPR
DP Comparator Hysteresis
MIN
TYP
MAX
MAX14632: CB = 0
40
41
42
MAX14630: CB = 0
MAX14632: CB = 1
31
32
33
6.31
7
7.62
%VCC
1
%
MAX14632: CB = 0
45
46
47
MAX14630: CB = 0
MAX14632: CB = 1
57
58
59
1
DP rising
UNITS
%VCC
%VCC
%
Note 2: All units are 100% production tested at TA = +25NC. Specifications over operating temperature range are guaranteed by
design.
Note 3: The comparators are disabled during the POR delay.
Maxim Integrated
3
MAX14630/MAX14632
USB Charger Adapter Emulators
Typical Operating Characteristics
(VCC = 5.0V, TA = +25°C, unless otherwise noted.)
IDP = 10mA
SUPPLY CURRENT (µA)
6
4
VCC = 3.0V
VCC = 5.5V
30
20
TA = +85°C
10
0
3.0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
3.5
4.0
4.5
5.0
VCC (V)
SUPPLY CURRENT vs. LOGIC LEVEL
LOGIC-INPUT THRESHOLD
vs. SUPPLY VOLTAGE
VCC = 5.5V
50
40
30
20
10
5.5
2.0
1.8
LOGIC-INPUT THRESHOLD (V)
MAX14630 toc03
VDP (V)
60
SUPPLY CURRENT (µA)
TA = +25°C
TA = -40°C
0
70
CB = VCC
MAX14630 toc04
ON-RESISTANCE (I)
8
3
40
MAX14630 toc01
10
MAX14630 toc02
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
DP/DM SHORT ON-RESISTANCE vs. VDP
1.6
1.4
CB RISING
1.2
1.0
0.8
0.6
CB FALLING
0.4
0.2
0
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
3.0
VCB
3.5
4.0
4.5
5.0
5.5
SUPPLY VOLTAGE (V)
USB-COMPLIANT DEVICE
ATTACH EVENT
CB LOGIC-HIGH TO LOGIC-LOW EVENT
MAX14630 toc05
MAX14630 toc06
CB
DM
DP
DP
DM
1ms/div
Maxim Integrated
10µs/div
4
MAX14630/MAX14632
USB Charger Adapter Emulators
Pin Description
Pin Configuration
TOP VIEW
+
DP 1
GND 2
5
DM
MAX14630
MAX14632
CB 3
4
VCC
PIN
NAME
FUNCTION
1
DP
2
GND
3
CB
Control Bit
4
VCC
Power Supply. Bypass VCC with a
0.1FF ceramic capacitor as close as
possible to the pin.
5
DM
USB Connector D- Connection
USB Connector D+ Connection
IC Ground. Return to the transformer
output.
TSOT
Functional Diagram
VCC
VCC
MAX14630
MAX14632
RP1
RP2
DP
RM1
DM
RM2
500kΩ
VDP
POR
CB
DP
VDM1
DM1
VDM2
DM2
CONTROL LOGIC
GND
Maxim Integrated
5
MAX14630/MAX14632
USB Charger Adapter Emulators
Detailed Description
The MAX14630/MAX14632 are USB adapter emulators
with automatic charger identification circuitry for USB
dedicated chargers.
The devices allow USB wall adapters, travel chargers,
and other dedicated chargers to identify themselves
as a USB dedicated charger to USB devices, an Apple
charger to Apple products, and a Samsung Galaxy
dedicated charger port to legacy D+/D- short detection
devices that use the D+ pullup of the USB transceiver.
Resistor-Dividers
The devices feature internal resistor-dividers for biasing
data lines to provide support for Apple-compliant devices.
Mode Control
The devices feature a digital input, CB, for mode
selection. For MAX14630, connect CB to a logic-level
low voltage for Autodetection 2A charger mode or to
a logic-level high voltage for Samsung 2A charger
mode. See Table 1. For the MAX14632, connect CB to
a logic-level high voltage for Autodetection 2A charger
mode. Connect CB to a logic-level low voltage to place
the MAX14632 in Autodetection 1A charger mode. See
Table 2.
Autodetection
The MAX14630/MAX14632 feature Autodetection mode
for dedicated chargers. In Autodetection charger
mode, the device monitors the voltages at DM and
DP to determine the type of device attached. With the
MAX14630 or MAX14632 in Autodetection mode, when
the voltage at DM is VDM1 or higher, and the voltage at
DP is VDP or lower, the voltage remains unchanged. If
the voltage at DM is forced below the VDM1 threshold,
the internal switch discon­
nects DM and DP from the
resistor-divider, and DM and DP are shorted together
for dedicated charging mode. Similarly, if the voltage at
DP is forced higher than the VDP threshold, the internal
switch disconnects DM and DP from the resistor-divider,
and DM and DP are shorted together for dedicated
charging mode.
Once the charging voltage is removed, the short between
DM and DP is disconnected.
Table 1. Digital Input State for the MAX14630
CB
MODE
0
Autodetection 2A
1
SS 2A
STATUS
Supports Apple 2A and USB BC compliant devices.
Supports Samsung Galaxy Tablet 2A and USB BC compliant devices.
Table 2. Digital Input State for the MAX14632
CB
MODE
0
Autodetection 1A
Supports Apple 1A and USB BC compliant devices.
1
Autodetection 2A
Supports Apple 2A and USB BC compliant devices.
Maxim Integrated
STATUS
6
MAX14630/MAX14632
USB Charger Adapter Emulators
Ordering Information
TEMP RANGE
PIN-PACKAGE
TOP MARK
CB = 0/1
MAX14630EZK+T
PART
-40NC to +85NC
5 TSOT
ADSM
Autodetection 2A/SS 2A
MAX14632EZK+T
-40NC to +85NC
5 TSOT
ADSN
Autodetection 1A/
Autodetection 2A
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Chip Information
PROCESS: BiCMOS
Maxim Integrated
Package Information
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a
“+”, “#”, or “-” in the package code indicates RoHS status only.
Package drawings may show a different suffix character, but the
drawing pertains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
5 TSOT
Z5+1
21-0113
90-0241
7
MAX14630/MAX14632
USB Charger Adapter Emulators
Revision History
REVISION
NUMBER
REVISION
DATE
DESCRIPTION
PAGES
CHANGED
0
6/12
Initial release
—
1
3/13
Removed future product designation from the MAX14632 in the Ordering Information
7
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent
licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and
max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000
© 2013 Maxim Integrated Products, Inc.
8
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
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