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PDF MAX14529E Data sheet ( Hoja de datos )
| Número de pieza | MAX14529E | |
| Descripción | (MAX14529E / MAX14530E) Overvoltage Protection | |
| Fabricantes | Maxim Integrated Products | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MAX14529E (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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19-4459; Rev 0; 2/09
www.DataSheet4U.com
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) RON 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 RON 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
23
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.
1 page  
www.DataSheet4U.com
Overvoltage Protection with USB Charger
Detection, LDO, and ESD Protection on D+/D-
PIN
A1, A2
A3
A4
B1
B2
B3
B4
C1, C2
C3
C4
NAME
IN
VOK
D-
OEN
LEN
CDET
GND
OUT
LOUT
D+
Pin Description
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 < VIN < VOVLO).
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
OVLO
tOFF
IN
tON 80% VOVLO
80% VIN
10% VIN
OUT
tINDBC
tINDBC
Figure 1. MAX14529E/MAX14530E Timing Diagram
_______________________________________________________________________________________ 5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet MAX14529E.PDF ] | |
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