MAX14578AE Maxim, MAX14578AE Datasheet

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MAX14578AE

Manufacturer Part Number
MAX14578AE
Description
The MAX14578E/MAX14578AE are USB charger detectors compliant with USB Battery Charging Revision 1
Manufacturer
Maxim
Datasheet
19-5821; Rev 1; 2/12
The MAX14578E/MAX14578AE are USB charger detec-
tors compliant with USB Battery Charging Revision 1.1.
The USB charger-detection circuitry detects USB stan-
dard downstream ports (SDPs), USB charging down-
stream ports (CDPs), or dedicated charger ports (DCPs),
and controls an external lithium-ion (Li+) battery charger.
The devices implement USB Battery Charging Revision
1.1-compliant detection logic including data contact
detection, D+/D- short detection, charging downstream
port identification, and optional USB dead-battery charg-
ing support. Dead-battery charging support features a
45-minute (max) charge timer and weak battery voltage
monitor controlled by I
only.) The MAX14578AE features an enable (EN) input
and an LDO output.
In addition, the internal USB switch is compliant to
Hi-Speed USB, full-speed USB, and low-speed USB
signals. The devices feature low on-resistance, low
on-resistance flatness, and very low capacitance. The
devices also feature high-ESD protection up to Q15kV
Human Body Model on the CD+ and CD- pins.
In addition, the MAX14578E/MAX14578AE feature Apple
and Sony charger detection that allows identification of
resistor-divider networks on D+/D-.
The MAX14578E/MAX14578AE are available in both a
12-bump, 0.4mm pitch, 1.3mm x 1.68mm WLP package
and 16-pin TQFN package, and operate over the -40NC
to +85NC extended temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed Pad.
T = Tape and reel.
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.
MAX14578EEWC+T
MAX14578EETE+T
MAX14578AEEWC+T
MAX14578AEETE+T
PART
_______________________________________________________________ Maxim Integrated Products 1
2
General Description
C communication (MAX14578E
Yes
Yes
I
No
No
2
C
Yes
Yes
EN
No
No
USB Battery Charger Detectors
LDO
Yes
Yes
No
No
-40NC to +85NC
-40NC to +85NC
-40NC to +85NC
-40NC to +85NC
TEMP RANGE
Ordering Information/Selector Guide
S Compliant to USB Battery Charging Revision 1.1
S Data Contact Detection for Foolproof Connector
S USB Dead-Battery Charging Support
S Charging Downstream Detection
S Apple/Sony Charger Detection
S Dedicated Charger Detection
S China YD/T1591-Compliant Charger Detection
S Internal Switches Isolate the USB Transceiver
S V
S Device Status Change Interrupt
S Low Supply Current
S High-ESD Protection on CD+ and CD-
Insertion Detection
During the Charger Detection Process
BUS
±15kV Human Body Model
±8kV IEC 61000-4-2 Contact Discharge
DSC and Camcorder
Media Players
Cell Phones
e-Book Readers
Mobile Internet Devices (MIDs)
Connection Capable of 28V
PIN-PACKAGE
16 TQFN-EP*
16 TQFN-EP*
12 WLP
12 WLP
Applications
TOP MARK
Features
+ABW
+ABX
AJA
AJB

Related parts for MAX14578AE

MAX14578AE Summary of contents

Page 1

... I C communication (MAX14578E only.) The MAX14578AE features an enable (EN) input and an LDO output. In addition, the internal USB switch is compliant to Hi-Speed USB, full-speed USB, and low-speed USB signals. The devices feature low on-resistance, low on-resistance flatness, and very low capacitance ...

Page 2

... B 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 ...

Page 3

... V = +3.5V to +5.5V, T BAT +5.0V +25NC.) (Note PARAMETER SYMBOL BAT Supply Current V Supply Current B LOUT (LDO OUT) (MAX14578AE ONLY) LOUT Current Limit I LOUT Voltage V LOUT Debounce Time t LOUT_DEB LOUT Turn-On Time Themal Shutdown Themal Shutdown Hysteresis CHARGER DETECTION V Voltage V DP_SRC ...

Page 4

USB Battery Charger Detectors ELECTRICAL CHARACTERISTICS (continued +2.8V to +5.5V +3.5V to +5.5V, T BAT +5.0V +25NC.) (Note PARAMETER SYMBOL VBUS25 Ratio VBUS25 VBUS47 Ratio VBUS47 VBUS60 Ratio ...

Page 5

ELECTRICAL CHARACTERISTICS (continued +2.8V to +5.5V +3.5V to +5.5V, T BAT +5.0V +25NC.) (Note PARAMETER SYMBOL Output Logic-High Output Logic-Low DYNAMIC (Note 5) Charge-Pump Delay Time Analog-Switch Turn-On ...

Page 6

... SUPPLY VOLTAGE 0V, CP_ENA = 1, USBSWC = +85° +25° -40° 4.3 2.8 3.3 3.8 BAT SUPPLY VOLTAGE (V) V SUPPLY CURRENT B vs. SUPPLY VOLTAGE (MAX14578AE) 200 V = +3.6V HIGH BAT 150 T = +85°C A 100 +25° -40° 5.5 4.5 4.7 4.9 5.1 5.3 V SUPPLY VOLTAGE (V) B ANALOG-SWITCH EYE DIAGRAM MAX14578E toc09 0 ...

Page 7

... TEMPERATURE ON-LEAKAGE 20 10 OFF-LEAKAGE 0 10,000 -40 - TEMPERATURE (°C) CONNECTION (MAX14578E) BUS = 3V) TD+ MAX14578E toc14 V B 5V/div V CD+ 0.5V/div V CE2 5V/div V CE1 5V/div 40ms/div CONNECTION (MAX14578AE) BUS (V = 3V) TD+ MAX14578E toc16 V B 5V/div V CD+ 2V/div V CE2 5V/div V CE1 5V/div 100ms/div ...

Page 8

... Active-Low Interrupt Request, Open-Drain Output INT +5.3V USB Transceiver V A4 LOUT capacitor as close as possible between LOUT and GND. — LOUT_SNS Connect Externally to LOUT (MAX14578AE, TQFN Only) B4 CE1 Charger-Enable Control 1, Open-Drain Output C4 CE2 Charger-Enable Control 2, Open-Drain Output Serial-Data Input/Output. Connect SDA to an external pullup — ...

Page 9

... PIN MAX14578E MAX14578AE TQFN-EP WLP TQFN- — — — — MAX14578E Functional Diagram/Typical Application Circuit USB TRANSCEIVER INT SCL PROCESSOR SDA 1µF AUDIO CODEC/ AMPLIFIER BATTERY _______________________________________________________________________________________ USB Battery Charger Detectors Pin/Bump Description (continued) NAME WLP ...

Page 10

... USB Battery Charger Detectors MAX14578AE Functional Diagram/Typical Application Circuit V CC 1µF ID USB TRANSCEIVER PROCESSOR 1µF AUDIO CODEC/ AMPLIFIER BATTERY 10 _____________________________________________________________________________________ BATTERY MAX14544 LOUT LDO MAX14578AE TD- TD+ USB CHARGER DETECTION EN CONTROL LOGIC BAT CE2 CE1 CE0 GND IUSB DCM ...

Page 11

Table 1. Register Map ADDRESS NAME BIT 7 0x00 DEVICE ID CONTROL 0x01 INTPOL 1 0x02 INTERRUPT CONTROL 0x03 DCD_EN 2 CONTROL 0x04 RFU 3 Table 2. Detailed Register Map FIELD NAME READ/WRITE 2 DEVICE ADDRESS = ...

Page 12

USB Battery Charger Detectors Table 2. Detailed Register Map (continued) FIELD NAME READ/WRITE USB_CHGDET Read/Write 2 INTERRUPT (I C ADDRESS = 0x02) CHG_TYP Read Only VBCOMP Read Only DBCHG Read Only DCD_T Read Only CHGRUN Read Only RFU Read Only ...

Page 13

... Read/Write DCD_EXIT Read/Write Note: CP_ENA, DCHK, USB_CHGDET, DCD_EN, SUS_LOW, CE_FRC, CE, USB_CPL, SFOUT_EN, SFOUTASRT, and DCD_EXIT can be configured to have different default values. Contact the factory for more information. *Default value for MAX14578AE only. ______________________________________________________________________________________ USB Battery Charger Detectors BIT DEFAULT Exit Dead-Battery Charge Mode. If DBCHG = 1, setting DB_EXIT to 1 stops the 45-minute timer, sets DBCHG to 0, and leaves CHG_EN = 1 ...

Page 14

... The MAX14578E features I C communication, while the MAX14578AE features an EN pin and an LDO output pin. The internal USB switch is compliant to Hi-Speed USB, full-speed USB, and low-speed USB signals. Both devic- es feature low on-resistance, low on-resistance flatness, and very low capacitance ...

Page 15

... DCD COMPLIANT D+/D- SHORT TEST DCP/CDP TEST () MAX14578AE ONLY. Figure 1. Charger-Type-Detection Sequence DCD START ENABLE STANDARD DOWNSTREAM PORT DETECTION ENABLE COMPARATORS ENABLE CHARGING DOWNSTREAM PORT DETECTION LOUT ENABLE (MAX14578AE) (SFOUTASRT = 0) CHGRUN Figure 2. Charger-Detection Timing ______________________________________________________________________________________ USB Battery Charger Detectors DORMANT CE_ = HI-Z V > V ...

Page 16

... ADPPD 49.9kΩ BUS BUS 5.0V 5.0V ADMPU 43.2kΩ (FOR 1A) 75.0kΩ (FOR 0.5A ADMPD 49.9kΩ The MAX14578E/MAX14578AE feature digital open-drain outputs—CE0 (MAX14578AE only), CE1, and CE2—to control an external charger autonomously. See Table 3. CHG_TYP USB_CPL 000 X 000 X 110 X 110 X 001 ...

Page 17

I C Serial Interface (MAX14578E) Serial Addressing The MAX14578E operates as a slave device that sends 2 and receives data through an I interface. The interface uses a serial-data line (SDA) and a serial-clock line (SCL) to achieve bidirectional ...

Page 18

USB Battery Charger Detectors One data bit is transferred during each clock pulse (Figure 6). The data on SDA must remain stable while SCL is high. The acknowledge bit is a clocked 9th bit that the recipient uses to handshake ...

Page 19

ADDRESS = 0x58 REGISTER 0x01 WRITE DATA Figure 9. Format for I C Write ADDRESS = 0x58 REGISTER 0x01 WRITE DATA d7 d6 ...

Page 20

... CE_ OUTPUTS (CE0) SUS_LOW = 1 CE1 CE2 () MAX14578AE only. Applications Information The MAX14578E charger-enable control outputs are ideal for autonomous external charger control. Table 4 shows example connections for various Maxim chargers. Hi-Speed USB requires careful PCB layout with 45I single-ended/90I differential controlled-impedance matched traces of equal lengths ...

Page 21

... The IEC 61000-4-2 standard covers ESD testing and performance of finished equipment. However, it does not specifically refer to integrated circuits. The MAX14578E/ MAX14578AE assist in designing equipment to meet IEC 61000-4-2 without the need for additional ESD-protection components. The major difference between tests done using the ...

Page 22

... Package Information For the latest package outline information and land patterns (footprints www.maxim-ic.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. ...

Page 23

... Operating Circuit, and corrected default values for MAX14578AE in Table 2 Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. ...

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