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MAX14529

更新时间： 2024-11-06 02:52:51
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美信 - MAXIM /
页数 文件大小 规格书
9页 266K
描述
Overvoltage Protection with USB Charger Detection, LDO, and ESD Protection on D/D-

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MAX14529 数据手册

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19-4459; Rev 0; 2/09  
Overvoltage Protection with USB Charger  
Detection, LDO, and ESD Protection on D+/D-  
29/MAX14530E  
General Description  
Features  
The MAX14529E/MAX14530E are overvoltage-protec-  
tion devices with USB charger detection, a low-dropout  
(LDO) regulator, and ESD protection. These devices  
♦ Input Voltage Protection Up to 28V  
♦ High-Current USB Charger Detection  
♦ 3.3V, 100mA LDO  
feature a low 35mΩ (typ) R  
internal FET switch and  
ON  
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.  
♦ Preset Overvoltage Protection Trip Level  
5.75V (MAX14529E)  
6.8V (MAX14530E)  
♦ Integrated Low R  
35mΩ (typ) FET Switch  
ON  
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.  
♦ Low-Capacitance USB High-Speed Data Line ESD  
Protection (3pF)  
15ꢀV Human Body Model (HBM)  
15ꢀV IEC 61000-4-2 Air ꢁap  
8ꢀV IEC 61000-4-2 Contact  
The overvoltage thresholds (OVLO) are preset to 5.75V  
(MAX14529E) or 6.8V (MAX14530E).  
♦ Thermal-Shutdown Protection  
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.  
♦ 12-Bump, 1.5mm x 2mm WLP Pacꢀage  
♦ -40°C to +85°C Operating Temperature Range  
The MAX14529E/MAX14530E feature 15ꢀV ꢁBM ESD  
protection with low (3pF) capacitance suitable for  
ꢁi-Speed USB 2.0.  
Ordering Information/  
Selector Guide  
Both devices are offered in a small 12-bump, 1.5mm x  
2mm WLP pacꢀage and operate over the -40°C to  
+85°C extended temperature range.  
PIN-  
PACKAꢁE  
PART  
TOP MARK OVLO (V)  
MAX14529EEWC+T 12 WLP  
MAX14530EEWC+T 12 WLP  
AAP  
AAQ  
5.75  
6.8  
Applications  
Cell Phones  
Note: Both devices are specified over the -40°C to +85°C oper-  
ating temperature range.  
+Denotes a lead(Pb)-free/RoꢁS-compliant pacꢀage.  
T = Tape and reel.  
MP3 Players  
PDAs and Palmtop Devices  
Typical Operating Circuit  
Pin Configuration  
TOP VIEW  
(BUMPS ON BOTTOM)  
PHONE  
LOAD  
IN  
OUT  
OUT  
CHARGER  
0.1μF  
1
2
3
4
V
BUS  
IN  
D+  
D-  
D+  
D-  
USB  
CONNECTOR  
+
MAX14529E/MAX14530E  
V
IO  
V
IO  
MAX14529E/  
MAX14530E  
A
B
C
10kΩ  
10kΩ  
IN  
IN  
VOK  
CDET  
LOUT  
D-  
GND  
D+  
VOK  
CDET  
OEN  
MICRO-  
PROCESSOR  
LEN  
OEN  
OUT  
LEN  
OUT  
V
CC  
LOUT  
GND  
1.5kΩ  
V
PU  
1μF  
USB 2.0  
TRANSCEIVER  
D+  
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.  
1234567...9

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