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PDF MAX14578AE Data sheet ( Hoja de datos )
| Número de pieza | MAX14578AE | |
| Descripción | USB Battery Charger Detectors | |
| Fabricantes | Maxim Integrated Products | |
| Logotipo |  |
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19-5821; Rev 1; 2/12
EVAALVUAAILTAIOBNLEKIT
USB Battery Charger Detectors
General Description
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 I2C 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. 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.
Features
S Compliant to USB Battery Charging Revision 1.1
S Data Contact Detection for Foolproof Connector
Insertion Detection
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
During the Charger Detection Process
S VBUS Connection Capable of 28V
S Device Status Change Interrupt
S Low Supply Current
S High-ESD Protection on CD+ and CD-
±15kV Human Body Model
±8kV IEC 61000-4-2 Contact Discharge
Applications
DSC and Camcorder
Media Players
Cell Phones
e-Book Readers
Mobile Internet Devices (MIDs)
Ordering Information/Selector Guide
PART
MAX14578EEWC+T
MAX14578EETE+T
MAX14578AEEWC+T
MAX14578AEETE+T
I2C EN LDO
Yes No
No
Yes No
No
No Yes Yes
No Yes Yes
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed Pad.
T = Tape and reel.
TEMP RANGE
-40NC to +85NC
-40NC to +85NC
-40NC to +85NC
-40NC to +85NC
PIN-PACKAGE
12 WLP
16 TQFN-EP*
12 WLP
16 TQFN-EP*
TOP MARK
+ABW
AJA
+ABX
AJB
________________________________________________________________ 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  
www.DataSheet.co.kr
USB Battery Charger Detectors
ELECTRICAL CHARACTERISTICS (continued)
(VBAT = +2.8V to +5.5V, VB = +3.5V to +5.5V, TA = -40NC to +85NC, unless otherwise noted. Typical values are at VBAT = +3.6V,
VB = +5.0V, TA = +25NC.) (Note 4)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Output Logic-High
VOH
ISOURCE = 1mA
VIO -
0.2
V
Output Logic-Low
DYNAMIC (Note 5)
VOL ISINK = 1mA
0.2 V
Charge-Pump Delay Time
tCP CP_ENA from 0 to 1 until switch on
1 ms
Analog-Switch Turn-On Time
Analog-Switch Turn-Off Time
Break-Before-Make
Delay Time
tON
tOFF
tBBM
MAX14578E, I2C STOP to switch on,
RL = 50I
MAX14578E, I2C STOP to switch off,
RL = 50I
RL = 50I, TA = +25NC
0.1
0.1
>0
1
1
ms
ms
Fs
Off-Capacitance
COFF
TD-, TD+, applied voltage is 0.5VP-P,
DC bias = 0V, f = 240MHz; CD-, CD+
not connected to TD-, TD+
2
pF
On-Capacitance
CON
TD-, TD+, applied voltage is 0.5VP-P,
DC bias = 0V, f = 240MHz; CD-, CD+
connected to TD-, TD+; RL = 50I
4.5
pF
-3dB Bandwidth
Off-Isolation
I2C TIMING SPECIFICATIONS
I2C Max Clock
BW
VISO
fI2CCLK
VCD_ = 0.5VP-P
RL = 50I, f = 20kHz, VCD_ = 0.5VP-P
1000
-60
400
MHz
dB
kHz
Bus Free Time Between STOP
and START Conditions
tBUF
1.3 Fs
START Condition Setup Time
0.6 Fs
Repeat START Condition
Setup Time
tSU:STA
90% to 90%
0.6 Fs
START Condition Hold Time
tHD:STA
10% of SDA to 90% of SCL
0.6
Fs
STOP Condition Setup Time
tSU:STO
90% of SCL to 10% of SDA
0.6
Fs
Clock Low Period
tLOW
10% to 10%
1.3 Fs
Clock High Period
tHIGH
90% to 90%
0.6 Fs
Data Valid to SCL Rise Time
tSU:DAT
Write setup time
100 ns
Data Hold Time to SCL Fall
tHD:DAT
Write hold time
0 ns
ESD PROTECTION
CD+, CD-
Human Body Model
IEC 61000-4-2 Contact Discharge
±15
±8
kV
Note 4: All units are 100% production tested at TA = +25NC. Limits over the operating temperature range are guaranteed by
design and not production tested.
Note 5: Guaranteed by design; not production tested.
_______________________________________________________________________________________ 5
Datasheet pdf - http://www.DataSheet4U.net/
5 Page 
www.DataSheet.co.kr
USB Battery Charger Detectors
Table 1. Register Map
ADDRESS
0x00
0x01
0x02
0x03
NAME
DEVICE ID
CONTROL
1
INTERRUPT
CONTROL
2
BIT 7
INTPOL
DCD_EN
BIT 6
BIT 5
VENDOR_ID
INTEN USBSWC
CHG_TYP
DB_EXIT DB_IDLE
BIT 4
BIT 3
CP_ENA LOW_POW
VBCOMP DBCHG
SUS_LOW CE_FRC
BIT 2
BIT 1
CHIP_REV
BIT 0
DCHK CHG_TYP_M USB_CHGDET
DCD_T CHGRUN
RFU
CE
0x04
CONTROL
3
RFU
RFU
RFU CDP_DET USB_CPL SFOUT_EN SFOUTASRT DCD_EXIT
Table 2. Detailed Register Map
FIELD NAME
READ/WRITE
DEVICE ID (I2C ADDRESS = 0x00)
VENDOR_ID
Read Only
CHIP_REV
Read Only
CONTROL 1 (I2C ADDRESS = 0x01)
BIT
[7:4]
[3:0]
INTPOL
Read/Write
7
INTEN
Read/Write
6
USBSWC
CP_ENA
Read/Write
Read/Write
5
4
LOW_POW
Read/Write
3
DCHK
Read/Write
2
CHG_TYP_M
Read/Write
1
DEFAULT
DESCRIPTION
0010
0001
Vendor Identification
Chip Revision
Interrupt Polarity
0 0 = Active low
1 = Active high
Interrupt Enable. If interrupt is disabled, pending interrupts
are not cleared and the INT pin deasserts. INTEN is a
0 global setting to mask all interrupts.
0 = Interrupt disabled
1 = Interrupt enabled
Opens/Closes USB Switch
0 0 = Switch open
1 = Switch closed
Charge-Pump Enable
0 0 = Charge pump disabled
1 = Charge pump enabled
Low-Power Mode
0 = Low-power mode disabled; oscillator/bandgap always on
1 1 = Low-power mode enabled; oscillator/bandgap turned
off under the following conditions: no VBUS, USBSWC = 0,
and CP_ENA = 0
Charger-Type Source-Detection Time
0 0 = DCHK, tDP_SRC_ON = 40ms
1 = DCHK, tDP_SRC_ON = 625ms
Charger-Type Manual-Detection Enable. Set CHG_TYP_M
to 1 to force the internal logic to open the USB switches
0
and perform a charger-type detection. After the detection
state matching completes, this bit resets to 0.
0 = Charger detection disabled
1 = Force a manual charge detection
______________________________________________________________________________________ 11
Datasheet pdf - http://www.DataSheet4U.net/
11 Page | ||
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| PDF Descargar | [ Datasheet MAX14578AE.PDF ] | |
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