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.
USB Battery Charger Detectors
General Description
The MAX14578E/MAX14578AE are USB charger detectors compliant with USB Battery Charging Revision 1.1.
The USB charger-detection circuitry detects USB standard downstream ports (SDPs), USB charging downstream 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 charging 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.
2
C communication (MAX14578E
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 V
S Device Status Change Interrupt
S Low Supply Current
S High-ESD Protection on CD+ and CD-
Connection Capable of 28V
BUS
±15kV Human Body Model
±8kV IEC 61000-4-2 Contact Discharge
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.
SWPOS
VCCINT
= (V
= (V
or 3.3V) (min)
VCCINT
[(VB or 4.2V) (min)]) (max)
BAT,
PACKAGE THERMAL CHARACTERISTICS (Note 3)
WLP
Junction-to-Ambient Thermal Resistance (B
) ..........73°C/W
JA
Note 3: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-lay-
er board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
= +2.8V to +5.5V, VB = +3.5V to +5.5V, TA = -40NC to +85NC, unless otherwise noted. Typical values are at V
BAT
V
= +5.0V, TA = +25NC.) (Note 4)
B
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
VBUS25 RatioVBUS25
VBUS47 RatioVBUS47
Reference ratio for special charger as a
percentage of V
voltage, VB = 5V
BUS
Reference ratio for special charger as a
percentage of V
voltage, VB = 5V
BUS
242629%
444750%
VBUS60 RatioVBUS6057.560.363.5%
DCD M Timet
DCD C Timet
MDEB
CDEB
All comparators203040ms
All comparators5ms
DCD Timer2s
Charger-Detect Source Timet
Charger-Detect-Type
Detection Time
Charger-Detect Delay Timet
Attach to CE1 and CE2
V
B
Output Time
V
Raw-Detect ThresholdV
B
-Detect ThresholdV
V
B
V
-Detect Threshold
B
Hysteresis
DP_SRC_ON
t
DP_RES_ON
DP_SRC_HICRNT
t
VBSW
VBRAW
VBDET
V
VBDET_HYS
DCHK = 040
DCHK = 1625
120ms
4080ms
From VB > V
or CHG_TYP_M = 1
VBDET
(DCHK = 0) to CE1 and/or CE2 change
From V
B
> V
or CHG_TYP_M = 1
VBDET
(DCHK = 1) to CE1 and/or CE2 change
1.72.63.5V
3.23.53.3V
3850mV
1450
USB ANALOG SWITCHES (CD-, CD+)
Analog-Signal RangeV
On- Resistance R
On -Resistance Match
Between Channels
On -Resistance Flatness R
Off-Leakage Current I
DN2, VDP2
ONUSB
DR
ONUSB
FLATUSB
LUSB(OFF)
CP_ENA = 0 (MAX14578E)0V
CP_ENA = 1 V
V
= +3.0V, I
BAT
V
, V
= 0 to +3.0V
CD-
= +3.0V, I
, V
= +400mV
CD-
= +3.0V, I
, V
= 0 to +3.3V
CD-
= 4.2V, switch open, V
= +0.3V or +2.5V; V
V
V
V
V
V
V
CD+
BAT
CD+
BAT
CD+
BAT
CD-
CD+
CD+
CD+
= I
= I
= I
= 10mA,
CD-
= 10mA,
CD-
= 10mA,
CD-
TD+
CD+
or V
=
TD-
SWNEG
3.36
0.060.26
=
-360+360nA
VCCINT
V
SWPOS
+2.5V or +0.3V
On-Leakage Current I
LUSB(ON)
= 4.2V, switch closed, V
BAT
V
= +0.3V or +2.5V
CD-
CD+
or
-360+360nA
V
DIGITAL SIGNALS (INT, SCL, SDA, EN, CE0, CE1, CE2)
Input Logic-High V
Input Logic-Low V
Input Leakage Current I
Open-Drain Low V
INLEAK
ODOL
IH
IL
I
= 1mA 0.4V
SINK
1.4V
-1+1
= +3.6V,
BAT
520
0.5
0.4V
ms
ms
V
I
I
I
FA
4
Maxim Integrated
MAX14578E/MAX14578AE
USB Battery Charger Detectors
ELECTRICAL CHARACTERISTICS (continued)
(V
= +2.8V to +5.5V, VB = +3.5V to +5.5V, TA = -40NC to +85NC, unless otherwise noted. Typical values are at V
BAT
V
= +5.0V, TA = +25NC.) (Note 4)
B
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
-
V
Output Logic-High V
Output Logic-LowV
DYNAMIC (Note 5)
OH
OL
I
SOURCE
I
SINK
= 1mA
= 1mA 0.2V
IO
0.2
= +3.6V,
BAT
V
Charge-Pump Delay Time t
Analog-Switch Turn-On Time t
Analog-Switch Turn-Off Time t
Break-Before-Make
Delay Time
Off-Capacitance C
OFF
t
BBM
CP
ON
OFF
CP_ENA from 0 to 1 until switch on 1ms
MAX14578E, I2C STOP to switch on,
R
= 50I
L
MAX14578E, I2C STOP to switch off,
R
= 50I
L
RL = 50I, TA = +25NC
TD-, TD+, applied voltage is 0.5V
P-P
,
> 0
DC bias = 0V, f = 240MHz; CD-, CD+
not connected to TD-, TD+
On-Capacitance C
ON
-3dB BandwidthBWV
Off-Isolation V
2
C TIMING SPECIFICATIONS
I
2
C Max Clock f
I
Bus Free Time Between STOP
and START Conditions
ISO
I2CCLK
t
BUF
TD-, TD+, applied voltage is 0.5V
DC bias = 0V, f = 240MHz; CD-, CD+
connected to TD-, TD+; R
= 0.5V
CD_
P-P
RL = 50I, f = 20kHz, V
CD_
= 50I
L
= 0.5V
P-P
,
P-P
1.3
START Condition Setup Time 0.6
Repeat START Condition
Setup Time
START Condition Hold Time t
STOP Condition Setup Time t
Clock Low Period t
Clock High Period t
Data Valid to SCL Rise Time t
Data Hold Time to SCL Fall t
t
SU:STA
HD:STA
SU:STO
LOW
HIGH
SU:DAT
HD:DAT
90% to 90% 0.6
10% of SDA to 90% of SCL 0.6
90% of SCL to 10% of SDA 0.6
10% to 10% 1.3
90% to 90% 0.6
Write setup time 100ns
Write hold time 0ns
ESD PROTECTION
CD+, CD-
Human Body Model ±15
IEC 61000-4-2 Contact Discharge±8
0.11ms
0.11ms
Fs
2pF
4.5pF
1000MHz
-60dB
400kHz
Fs
Fs
Fs
Fs
Fs
Fs
Fs
kV
Note 4: All units are 100% production tested at TA = +25NC. Limits over the operating temperature range are guaranteed by
Note 5: Guaranteed by design; not production tested.
design and not production tested.
5
Maxim Integrated
MAX14578E/MAX14578AE
01
USB Battery Charger Detectors
Typical Operating Characteristics
(V
= +4.2V, VB = +5.0V, C
BAT
= 1FF, CVB = 1FF, unless otherwise noted.)
BAT
BAT SUPPLY CURRENT
vs. SUPPLY VOLTAGE
2.0
VB = 0V, CP_ENA = 0, USBSWC = 0
= V
V
1.5
1.0
BAT SUPPLY CURRENT (µA)
0.5
0
2.84.3
= 0V
SDA
SCL
TA = +85°C
BAT SUPPLY VOLTAGE (V)
TA = +25°C
3.83.3
BAT SUPPLY CURRENT
vs. SUPPLY VOLTAGE
25
VB = 0V, CP_ENA = 0, USBSWC = 1
20
15
10
BAT SUPPLY CURRENT (µA)
5
TA = +85°C
TA = +25°C
TA = -40°C
TA = -40°C
10
VB = 0V, CP_ENA = 0, USBSWC = 0
V
MAX14578E toc01
MAX14578E toc04
8
6
4
BAT SUPPLY CURRENT (µA)
2
0
2.84.3
200
150
100
SUPPLY CURRENT (µA)
B
V
50
BAT SUPPLY CURRENT INCREASE
vs. SUPPLY VOLTAGE
= V
= 1.8V
SDA
SCL
TA = +85°C
TA = +25°C
TA = -40°C
3.83.3
BAT SUPPLY VOLTAGE (V)
VB SUPPLY CURRENT
vs. SUPPLY VOLTAGE (MAX14578E)
V
= +3.6V, CP_ENA = 0, USBSWC = 0
BAT
TA = +85°C
TA = +25°C
TA = -40°C
50
VB = 0V, CP_ENA = 1, USBSWC = 0
40
MAX14578E toc02
30
20
BAT SUPPLY CURRENT (µA)
10
0
2.84.3
vs. SUPPLY VOLTAGE (MAX14578AE)
200
V
MAX14578E toc05
150
100
SUPPLY CURRENT (µA)
B
V
50
BAT SUPPLY CURRENT
vs. SUPPLY VOLTAGE
TA = +85°C
TA = +25°C
BAT SUPPLY VOLTAGE (V)
VB SUPPLY CURRENT
= +3.6V, EN = HIGH
BAT
TA = +85°C
TA = +25°C
MAX14578E toc03
TA = -40°C
3.83.3
MAX14578E toc06
TA = -40°C
0
2.84.3
BAT SUPPLY VOLTAGE (V)
3.83.3
LOUT VOLTAGE REGULATION (MAX14578AE)
6.0
I
= 1mA
LOUT
5.5
5.0
4.5
LOUT VOLTAGE (V)
4.0
3.5
3.0
4.07.0
VB SUPPLY VOLTAGE (V)
TA = +85°C
TA = +25°C
TA = -40°C
6.56.05.55.04.5
6
MAX14578E toc07
LOUT VOLTAGE (V)
0
4.55.5
VB SUPPLY VOLTAGE (V)
5.35.14.94.7
LOUT LOAD REGULATION (MAX14578AE)
6.0
VB = 6V
5.5
5.0
4.5
4.0
3.5
3.0
TA = +25°CTA = -40°C
LOUT CURRENT (mA)
TA = +85°C
8642
0.5
0.4
MAX14578E toc08
0.3
0.2
0.1
-0.1
-0.2
DIFFERENTIAL SIGNAL (V)
-0.3
-0.4
-0.5
0
0
4.55.5
VB SUPPLY VOLTAGE (V)
ANALOG-SWITCH EYE DIAGRAM
0
0
TIME (x 10-9s)
5.35.14.94.7
MAX14578E toc09
2.01.81.4 1.60.4 0.6 0.8 1.0 1.20.2
Maxim Integrated
MAX14578E/MAX14578AE
USB Battery Charger Detectors
Typical Operating Characteristics (continued)
(V
= +4.2V, VB = +5.0V, C
BAT
= 1FF, CVB = 1FF, unless otherwise noted.)
BAT
CD+/CD- ON-RESISTANCE
VOLTAGE
vs. V
5
= 10mA
I
CD_
4
3
TA = +25°C
2
CD+/CD- ON-RESISTANCE (Ω)
1
0
03.0
CD_
V
VOLTAGE (V)
CD_
2.0
1.5
1.0
TA = +85°C
MAX14578E toc10
-20
-40
TA = -40°C
2.52.01.51.00.5
-60
CD+/CD- FREQUENCY RESPONSE (dB)
-80
LOGIC-INPUT THRESHOLD
vs. SUPPLY VOLTAGE
V
IH
CD+/CD- FREQUENCY RESPONSE
0
ON-LOSS
OFF-ISOLATION
0.0110,000
FREQUENCY (MHz)
1001
CE_ vs. V
USB CHARGING DOWNSTREAM PORT, USB COMPLIANT
(USB_CPL = 1, USBSWC = 0, V
MAX14578E toc13
CD+/CD- LEAKAGE CURRENT
50
40
MAX14578E toc11
30
20
10
CD+/CD- LEAKAGE CURRENT (nA)
0
-4085
CONNECTION (MAX14578E)
BUS
TD+
MAX14578E toc14
vs. TEMPERATURE
ON-LEAKAGE
OFF-LEAKAGE
TEMPERATURE (°C)
= 3V)
V
B
5V/div
V
CD+
0.5V/div
MAX14578E toc12
603510-15
V
0.5
LOGIC-INPUT THRESHOLD (V)
0
2.85.5
BAT SUPPLY VOLTAGE (V)
CE_ vs. V
BUS
IL
CONNECTION (MAX14578E)
APPLE 1A CHARGER, USB COMPLIANT
(USB_CPL = 1, USBSWC = 0, V
20ms/div
5.24.94.64.34.03.73.43.1
= 3V)
TD+
MAX14578E toc15
V
B
5V/div
V
CD+
2V/div
V
CE2
5V/div
V
CE1
5V/div
40ms/div
CE_ vs. V
CONNECTION (MAX14578AE)
BUS
USB CHARGING DOWNSTREAM PORT
(V
= 3V)
TD+
100ms/div
MAX14578E toc16
V
CE2
5V/div
V
CE1
5V/div
V
B
5V/div
V
CD+
2V/div
V
CE2
5V/div
V
CE1
5V/div
7
Maxim Integrated
USB Battery Charger Detectors
MAX14578E/MAX14578AE
Pin/Bump Configurations
TOP VIEW
(BUMP SIDE DOWN)
A
B
C
() MAX14578AE ONLY.
MAX14578E/MAX14578AE
2413
+
CD+CD-V
SCL
GND
(EN)
TD+TD-BATCE2
SDA
(CE0)
B
WLP
INT
(LOUT)
CE1
TOP VIEW
SDA
13
(CEO)
SCL
14
(EN)
15
TD-
16
N.C.
() MAX14578AE ONLY.
*CONNECT EP TO GND.
N.C.
(LOUT_SNS)
CE2
12109
11
MAX14578E
MAX14578AE
+
13
2
TD+
N.C.CE1
INT
EP*
4
N.C.
TQFN
(LOUT)
CD+
V
8
B
BAT
7
CD-
6
GND
5
Pin/Bump Description
PIN
NAMEFUNCTIONMAX14578EMAX14578AE
TQFN-EPWLPTQFN-EPWLP
1C11C1TD+USB Transceiver D+ Connection
2, 3, 10, 16—2, 3, 16—N.C.No Connection. Not internally connected.