ABRIDGED
DATA SHEET
EVALUATION KIT AVAILABLE
MAX14576/MAX14636/MAX14637
USB Charger Detectors
General Description
The MAX14576/MAX14636/MAX14637 are USB charger
detectors. The MAX14576/MAX14636/MAX14637 will pass
USB Battery Charger Specification Revision 1.2 (USB BC
1.2) compliance tests. The MAX14636/MAX14637 can
also detect Apple chargers, and other nonstandard types.
These devices are capable of detecting multiple USB bat-
tery charging methods including standard downstream
ports (SDP), charging downstream ports (CDP), and dedi-
cated charger ports (DCP). The devices also feature USB
BC 1.2 defined dead-battery option support.
The MAX14576/MAX14636/MAX14637 feature analog
switches that are capable of passing USB Hi-Speed, full-
speed, and low-speed signals. The switches have low on-
resistance (3I, typ) and low on-capacitance (4.5pF, typ).
The CDN and CDP are high ESD protected up to
Q15kV
Human Body Model (HBM),
Q15kV
IEC61000-4-2 Air Gap
Discharge, and
Q
8kV IEC61000-4-2 Contact Discharge.
The MAX14576/MAX14636/MAX14637 are available in a
10-pin (1.6mm x 2.1mm) UTQFN package and operate
over the -40NC to +85NC extended temperature range.
Benefits and Features
S
High Level of Integration
Capability to Withstand -6V to +30V (Absolute
Maximum) on VBUS Line
USB Battery Charger Detection
Will Pass USB Battery Charger
Specification Rev 1.2 Compliance Tests
USB DCP, SDP, and CDP Detection
Proprietary Charger Detection Capability
(MAX14636/MAX14637)
USB 2.0 Hi-Speed Switch with 3I (typ) On-
Resistance and 4.5pF (typ) On-Capacitance
High ESD Protection on CDP and CDN
Q15kV—HBM
Q15kV—IEC
61000-4-2 Air-Gap Discharge
Q8kV—IEC
61000-4-2 Contact Discharge
Q15kV
HBM ESD Protection VBUS When
Bypassed with 0.1µF or Greater Ceramic
Capacitor
S
Save Power in Portable Applications
Low Supply Current (150µA, typ)
S
Space Saving
10-Pin, 1.6mm x 2.1mm, UTQFN Package
Ordering Information/Selector guide
appears at end of data
sheet.
For related parts and recommended products to use with this part,
refer to
www.maximintegrated.com/MAX14576.related.
Applications
Cell Phones
Digital Cameras
eReaders
Tablets
Portable Industrial
Products
Functional Diagram/ Typical Application Circuit
V
BUS
INTERNAL
POWER
I/O
CONTROL
CHG_DET
V
IO
V
IO
VBUS
PMIC
USB
CHARGER
DETECTION
VBUS
USB/MICRO-USB
CONNECTOR
D-
D+
GND
1MI
(MAX14636/
MAX14637)
CDN
CDP
CHG_AL_N
SW_OPEN
TDN
TDP
GOOD_BAT
MICRO-
PROCESSOR
1MI
(MAX14636/
MAX14637)
MAX14576
MAX14636
MAX14637
GND
1MI
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.
19-6457; Rev 1; 1/14
ABRIDGED
DATA SHEET
MAX14576/MAX14636/MAX14637
USB Charger Detectors
Pin Configuration
TOP VIEW
VBUS
9
CDN
8
CDP
7
GND
6
CHG_DET
10
MAX14576
MAX14636
MAX14637
5
GOOD_BAT
+
1
SW_OPEN
2
TDN
3
TDP
4
CHG_AL_N
UTQFN
(1.6mm x 2.1mm)
Pin Description
PIN
1
2
3
4
5
6
7
8
9
10
NAME
SW_OPEN
TDN
TDP
CHG_AL_N
GOOD_BAT
GND
CDP
CDN
V
BUS
CHG_DET
FUNCTION
Data Switches Open Indicator. SW_OPEN is low when switches are closed. SW_OPEN is high
impedance when switches are open. SW_OPEN is an open-drain output. Connect SW_OPEN to a
pullup resistor externally.
USB Transceiver D- Connection
USB Transceiver D+ Connection
Charging Allow Indicator. CHG_AL_N is low when VBUS is valid and charging is allowed.
CHG_AL_N is an open-drain output. Connect CHG_AL_N to a pullup resistor externally.
Good Battery Digital Input. Set GOOD_BAT low for a dead battery and enable USB BC 1.2
compliant dead battery charging. Set GOOD_BAT high for a good battery.
Ground
USB Connector D+ Connection
USB Connector D- Connection
USB VBUS Input. Bypass VBUS to ground with a 0.1µF ceramic capacitor as close to the device
as possible to achieve high ±15kV HBM ESD protection.
Charger Detection Push-Pull Output. CHG_DET indicates the capability of the connected charger
type (see Tables 1, 2, 3).
Maxim Integrated
2
ABRIDGED
DATA SHEET
MAX14576/MAX14636/MAX14637
USB Charger Detectors
Ordering Information/Selector Guide
APPLE
CHARGE
CURRENT
100mA
Full Current
Full Current
TomTom CHARGE
CURRENT
100mA
Full Current
Not Supported
PART
MAX14576EVB+T
MAX14636EVB+T
MAX14637EVB+T
TEMP RANGE
-40NC to +85NC
-40NC to +85NC
-40NC to +85NC
TOP MARK
ABD
ABE
ABG
PIN-PACKAGE
10 UTQFN
10 UTQFN
10 UTQFN
+
Denotes a lead(Pb)-free package/RoHS-compliant package.
T = Tape and reel
Chip Information
PROCESS: BiCMOS
Package Information
For the latest package outline information and land patterns (foot-
prints), 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
10 ULTRA
TQFN
PACKAGE
CODE
V101A2CN+1
OUTLINE
NO.
21-0610
LAND
PATTERN NO.
90-0386
Maxim Integrated
3
