19-4459; Rev 0; 2/09
IT
TION K
VALUA
E
BLE
AVAILA
Overvoltage Protection with USB Charger
Detection, LDO, and ESD Protection on D+/D-
General Description
The MAX14529E/MAX14530E are overvoltage-protec-
tion devices with USB charger detection, a low-dropout
(LDO) regulator, and ESD protection. These devices
feature a low 35mΩ (typ) R
ON
internal FET switch and
protect low-voltage systems against voltage faults up to
28V. When the input voltage exceeds the overvoltage
threshold, the internal FET switch is turned off to pre-
vent damage to the protected components.
The charger detection detects a short between the USB
D+ and D- data lines. If the data lines are shorted
together and a dedicated charger is attached, the
phone draws more than 500mA to charge the battery.
The overvoltage thresholds (OVLO) are preset to 5.75V
(MAX14529E) or 6.8V (MAX14530E).
The LDO output (LOUT) is powered from OUT and sup-
plies 3.3V to the USB transceiver. The LDO features a
100mA (min) current capability and low output noise.
The MAX14529E/MAX14530E feature ±15kV HBM ESD
protection with low (3pF) capacitance suitable for
Hi-Speed USB 2.0.
Both devices are offered in a small 12-bump, 1.5mm x
2mm WLP package and operate over the -40°C to
+85°C extended temperature range.
Features
♦
Input Voltage Protection Up to 28V
♦
High-Current USB Charger Detection
♦
3.3V, 100mA LDO
♦
Preset Overvoltage Protection Trip Level
5.75V (MAX14529E)
6.8V (MAX14530E)
♦
Integrated Low R
ON
35mΩ (typ) FET Switch
♦
Low-Capacitance USB High-Speed Data Line ESD
Protection (3pF)
±15kV Human Body Model (HBM)
±15kV IEC 61000-4-2 Air Gap
±8kV IEC 61000-4-2 Contact
♦
Thermal-Shutdown Protection
♦
12-Bump, 1.5mm x 2mm WLP Package
♦
-40°C to +85°C Operating Temperature Range
MAX14529E/MAX14530E
Ordering Information/
Selector Guide
PART
PIN-
PACKAGE
TOP MARK
AAP
AAQ
OVLO (V)
5.75
6.8
MAX14529EEWC+T
12 WLP
MAX14530EEWC+T
12 WLP
Applications
Cell Phones
MP3 Players
PDAs and Palmtop Devices
Note:
Both devices are specified over the -40°C to +85°C oper-
ating temperature range.
+Denotes
a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Typical Operating Circuit
PHONE
LOAD
Pin Configuration
TOP VIEW
(BUMPS ON BOTTOM)
1
IN
V
BUS
D+
USB
CONNECTOR D-
IN
D+
D-
OUT
OUT
CHARGER
0.1μF
2
3
4
+
MAX14529E/
MAX14530E
10kΩ
VOK
CDET
OEN
LEN
GND
LOUT
1μF
V
CC
1.5kΩ
V
PU
USB 2.0
D+ TRANSCEIVER
D-
MICRO-
PROCESSOR
V
IO
V
IO
MAX14529E/MAX14530E
A
10kΩ
IN
B
OEN
C
OUT
IN
VOK
D-
LEN
CDET
GND
OUT
LOUT
D+
WLP
1.5mm x 2mm
________________________________________________________________
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.
Overvoltage Protection with USB Charger
Detection, LDO, and ESD Protection on D+/D-
MAX14529E/MAX14530E
ABSOLUTE MAXIMUM RATINGS
IN to GND ...............................................................-0.3V to +30V
OUT to GND .................................-0.3V to min (+12V, IN + 0.3V)
OEN, LEN, VOK, CDET
to GND ...............................-0.3V to +6V
LOUT to GND ...........................................................-0.3V to +6V
Continuous Current IN to OUT per Ball...............................1.74A
Continuous Power Dissipation (T
A
= +70°C)
12-Bump WLP (derate 8.5mW/°C above +70°C).........678mW
Junction-to-Ambient Thermal Resistance (θ
JA
)
(Note 1) ......................................................................118°C/W
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature .......................................-40°C to +150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
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, go to
www.maxim-ic.com/thermal-tutorial.
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.
ELECTRICAL CHARACTERISTICS
(V
IN
= 2.2V to 28V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
IN
= +5V, T
A
= +25°C.) (Note 2)
PARAMETER
OVERVOLTAGE PROTECTION
Input-Voltage Range
V
IN
V
IN
rising
Overvoltage Trip Level
V
OVLO
V
IN
falling
IN Overvoltage Lockout Hysteresis
V
OEN
= 0, V
LEN
= 5V, 2.2V < V
IN
< V
OVLO
Supply Current
Internal FET R
ON
Maximum Capacitor on OUT
LOW-DROPOUT REGULATOR
LDO Output Voltage
LOUT Line Regulation
LOUT Load Regulation
Current Limit
Dropout Voltage
LOUT Noise
CDET
FILTER
Cutoff Frequency
D- Rising DC Threshold
D- Falling DC Threshold
DIGITAL SIGNALS
Open-Drain Output Low Voltage
Open-Drain Leakage Current
Input High Voltage
V
IH
V
OL
I
SINK
= 1mA
V
OEN
= V
LEN
= 5V,
VOK
and
CDET
high
impedance
1.4
0.4
1
V
µA
V
f
FILT
V
THFILT,R
V
THFILT,F
2.375
0.6
2.5
2.35
2.625
kHz
V
V
I
OUT
= 50mA (Note 3)
f = 10kHz to 100kHz, I
OUT
= 1mA
V
LOUT
V
IN
= 5V
V
IN
= 4.2V to 6V
I
OUT
= 0.1mA to 100mA
100
300
355
3.219
3.3
1.65
0.33
3.383
3.3
0.66
400
500
V
mV/V
mV/mA
mA
mV
µV
RMS
I
IN
R
ON
C
OUTMAX
V
OEN
= V
LEN
= 0, 2.2V < V
IN
< V
OVLO
V
OEN
= V
LEN
= 5V, 2.2V < V
IN
< V
OVLO
I
LOAD
= 100mA, V
IN
= 4.5V to 5.5V
MAX14529E
MAX14530E
MAX14529E
MAX14530E
2.2
5.6
6.6
5.4
6.5
1
95
145
50
35
190
300
120
60
1000
mΩ
µF
µA
%
5.75
6.8
28
5.9
6.94
V
V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
2
_______________________________________________________________________________________
Overvoltage Protection with USB Charger
Detection, LDO, and ESD Protection on D+/D-
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= 2.2V to 28V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
IN
= 5V, T
A
= +25°C.) (Note 2)
PARAMETER
Input Low Voltage
Input Leakage Current
TIMING CHARACTERISTICS (Figure 1)
Debounce Time
Switch Turn-On Time
Switch Turn-Off Time
THERMAL PROTECTION
Thermal Shutdown
Thermal Hysteresis
ESD PROTECTION
Human Body Model
D+ and D-
IEC 61000-4-2 Air Gap
IEC 61000-4-2 Contact
±15
±15
±8
kV
Low to high
150
20
°C
°C
t
INDBC
t
ON
t
OFF
2.2V < V
IN
< V
OVLO
to V
OUT
= 10% of V
IN
2.2V < V
IN
< V
OVLO
, R
L
= 100Ω,
V
OUT
= 10% to 80% of V
IN
, C
L
= 1mF
V
IN
> V
OVLO
to V
OUT
= 80% of V
OVLO
,
R
L
= 10Ω
20
2
1.5
3.5
ms
ms
µs
SYMBOL
V
IL
V
OEN
= V
LEN
= 5V
-1
CONDITIONS
MIN
TYP
MAX
0.4
+1
UNITS
V
µA
MAX14529E/MAX14530E
Note 2:
Devices are production tested at T
A
= +25°C. Specifications over temperature limits are guaranteed by design.
Note 3:
Dropout voltage is defined as V
OUT
- V
LOUT
when V
LOUT
is at V
LOUT
(
min)
.
Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
INPUT SUPPLY CURRENT
vs. INPUT VOLTAGE
MAX14529E/30E toc01
NORMALIZED R
ON
vs. TEMPERATURE
MAX14529E/30E toc02
NORMALIZED OVLO THRESHOLD
vs. TEMPERATURE
1.04
NORMALIZED OVLO THRESHOLD
1.03
1.02
1.01
1.00
0.99
0.98
0.97
0.96
0.95
MAX14529E/30E toc03
70
60
50
40
30
20
10
0
0
5
10
15
MAX14529E
V
OEN
= V
LEN
= 3V
T
A
= +85°C
T
A
= +25°C
1.5
1.4
1.3
NORMALIZED R
ON
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
V
IN
= 5V
V
IN
= 3.6V
1.05
INPUT SUPPLY CURRENT (μA)
T
A
= -40°C
20
25
30
-40
-15
10
35
60
85
-40
-15
10
35
60
85
INPUT VOLTAGE (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
_______________________________________________________________________________________
3
Overvoltage Protection with USB Charger
Detection, LDO, and ESD Protection on D+/D-
MAX14529E/MAX14530E
Typical Operating Characteristics (continued)
(T
A
= +25°C, unless otherwise noted.)
NORMALIZED LDO OUTPUT VOLTAGE
vs. OUTPUT CURRENT
MAX14529E/30E toc04
LDO OUTPUT DROPOUT VOLTAGE
vs. LOAD CURRENT
MAX14529E/30E toc05
LDO OUTPUT VOLTAGE vs. INPUT VOLTAGE
3.5
LDO OUTPUT VOLTAGE (V)
3.0
2.5
2.0
1.5
1.0
0.5
0
0
1
2
3
4
5
6
7
8
MAX14529E
I
LOAD
= 0
MAX14529E/30E toc06
1.010
NORMALIZED LDO OUTPUT VOLTAGE
1.005
1.000
0.995
0.990
0.985
0.980
0
1000
LDO OUTPUT DROPOUT VOLTAGE (mV)
900
800
700
600
500
400
300
200
100
0
0
T
A
= -40°C
T
A
= +25°C
T
A
= +85°C
4.0
10 20 30 40 50 60 70 80 90 100
OUTPUT CURRENT (mA)
10 20 30 40 50 60 70 80 90 100
LOAD CURRENT (mA)
INPUT VOLTAGE (V)
NORMALIZED DEBOUNCE TIME
vs. TEMPERATURE
1.08
NORMALIZED DEBOUNCE TIME
1.06
1.04
1.02
1.00
0.98
0.96
0.94
0.92
0.90
-40
-15
10
35
60
85
MAX14529E/30E toc07
POWER-UP RESPONSE
MAX14529E/30E toc08
OVERVOLTAGE FAULT RESPONSE
MAX14529E/30E toc09
1.10
V
IN
5V/div
V
IN
2V/div
V
OUT
5V/div
V
VOK
5V/div
V
OEN
1V/div
5ms/div
1μs/div
V
OUT
2V/div
V
VOK
5V/div
TEMPERATURE (°C)
CDET RESPONSE
MAX14529E/30E toc10
D+/D- INPUT LEAKAGE CURRENT
vs. TEMPERATURE
MAX14529E/30E toc11
INPUT CAPACITANCE
vs. D+/D- INPUT VOLTAGE
MAX14529E/30E toc12
0.10
D+/D- INPUT LEAKAGE CURRENT (μA)
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0
V
D+
2V/div
V
D-
2V/div
6
5
INPUT CAPACITANCE (pF)
4
3
2
1
0
V
CDET
2V/div
100μs/div
-40
-15
10
35
60
85
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.5
D+/D- INPUT VOLTAGE (V)
TEMPERATURE (°C)
4
_______________________________________________________________________________________
Overvoltage Protection with USB Charger
Detection, LDO, and ESD Protection on D+/D-
Pin Description
PIN
A1, A2
A3
A4
B1
B2
B3
B4
C1, C2
C3
C4
NAME
IN
VOK
D-
OEN
LEN
CDET
GND
OUT
LOUT
D+
FUNCTION
Overvoltage-Protection Input. Bypass IN with a 1µF ceramic capacitor as close as possible to the device
to obtain ±15kV HBM ESD protection. No capacitor required to obtain ±2kV HBM ESD protection.
Voltage Input Good Open-Drain Output.
VOK
is low impedance when
OEN
is driven low after the
debounce time is expired (2.2V < V
IN
< V
OVLO
).
USB Data Line with ESD Protection
Overvoltage Protection Active-Low Enable Input. Drive
OEN
high to disconnect OUT from IN.
Low-Dropout Active-Low Enable Input.
Charger Detection Open-Drain Output.
CDET
is low if D+ and D- are shorted.
Ground
Overvoltage Switch Output. Bypass OUT with a 0.1µF ceramic capacitor as close as possible to the
device.
Low-Dropout Power Output. Bypass LOUT with a 1µF ceramic capacitor as close as possible to the
device.
USB Data Line with ESD Protection
MAX14529E/MAX14530E
OVLO
t
OFF
IN
t
ON
80% V
IN
80% V
OVLO
OUT
t
INDBC
10% V
IN
t
INDBC
Figure 1. MAX14529E/MAX14530E Timing Diagram
_______________________________________________________________________________________
5
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