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參數(shù)資料
| 型號： | MAX13345EETD+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 4/18頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX USB FS 3WIRE 14-TDFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | 收發(fā)器 |
| 驅(qū)動(dòng)器/接收器數(shù)： | 1/1 |
| 規(guī)程： | USB 2.0 |
| 電源電壓： | 2.3 V ~ 3.6 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 14-WFDFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 14-TDFN-EP（3x3） |
| 包裝： | 帶卷 (TR) |
MAX13342E/MAX13345E
3-Wire Interface Full-Speed USB Transceivers
With/Without Internal Series Resistors
12
______________________________________________________________________________________
ESD Protection
The MAX13342E/MAX13345E feature ±15kV (HBM) ESD
protection on D+ and D-. The ESD structures withstand
high ESD in all states: normal operation, suspend, and
powered down. For the ±15kV ESD structures to work
correctly, a 1F or greater capacitor must be connected
from VTRM to GND. VBUS and D+/D- are characterized
for protection to the following limits:
±15kV using the Human Body Model
±8kV using the IEC 61000-4-2 Contact Discharge
Method
±8kV using the IEC 61000-4-2 Air-Gap Method
ESD Test Conditions
ESD performance depends on a variety of conditions.
Contact Maxim for a reliability report that documents
test setup, test methodology, and test results.
Human Body Model
Figure 11 shows the Human Body Model, and Figure
12 shows the current waveform it generates when dis-
charged into a low impedance. This model consists of
a 100pF capacitor charged to the ESD voltage of inter-
est, which is then discharged into the test device
through a 1.5k
resistor.
IEC 61000-4-2
The IEC 61000-4-2 standard covers ESD testing and
performance of finished equipment; it does not specifi-
cally refer to integrated circuits. The MAX13342E/
MAX13345E help the user design equipment that meets
level 4 of IEC 61000-4-2, without the need for additional
ESD-protection components. The major difference
between tests done using the Human Body Model and
IEC 61000-4-2 is a higher peak current in IEC 61000-4-
2 because series resistance is lower in the IEC 61000-
4-2 model. Hence, the ESD withstand voltage
measured to IEC 61000-4-2 is generally lower than that
measured using the Human Body Model. Figure 13
shows the IEC 61000-4-2 model. The Air-Gap
Discharge Method involves approaching the device
with a charged probe. The Contact Discharge Method
connects the probe to the device before the probe
is energized.
MAX13342E
SYSTEM
VOLTAGE
SUPPLY
VBUS
VL
SYSTEM
INTERFACE
DAT
SEO
GND
D-
D+
GND
D-
D+
VTRM
SUS
ENUM
OE
USB CONNECTOR
31.6
31.6
USB
POWER
0.1
F
1.0
F
1.0
F
BD
Figure 2. Adding External Resistors to the USB Connector for the MAX13342E
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