MAX14529E Datasheet, PDF (1/9 Pages) Maxim Integrated Products – Overvoltage Protection with USB Charger Detection, LDO, and ESD Protection on D+/D-

19-4459; Rev 0; 2/09
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.
Applications
Cell Phones
MP3 Players
PDAs and Palmtop Devices
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
Ordering Information/
Selector Guide
PART
PIN-
TOP MARK OVLO (V)
PACKAGE
MAX14529EEWC+T 12 WLP
AAP
5.75
MAX14530EEWC+T 12 WLP
AAQ
6.8
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
Pin Configuration
VBUS
D+
USB
CONNECTOR ^D-
IN
OUT
IN
OUT
D+
D- _MAX14529E/
MAX14530E
VOK
CDET
OEN
LEN
LOUT
GND
CHARGER
0.1μF
PHONE
LOAD
VIO VIO
10kΩ
10kΩ
MICRO-
PROCESSOR
VCC
1μF
1.5kΩ _VPU
USB 2.0
D+ _TRANSCEIVER
D-
TOP VIEW
(BUMPS ON BOTTOM)
1
2
3
4
+ _{MAX14529E/MAX14530E}
A
IN
IN
VOK
D-
B
OEN
LEN
CDET
GND
C
OUT
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.