|
|
PDF MAX3204EEBT-T Data sheet ( Hoja de datos )
| Número de pieza | MAX3204EEBT-T | |
| Descripción | Low-Capacitance / 2/3/4/6-Channel / 15kV ESD Protection Arrays for High-Speed Data Interfaces | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de MAX3204EEBT-T (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
|
No Preview Available !
19-2739; Rev 1; 5/03
Low-Capacitance, 2/3/4/6-Channel, ±15kV ESD
Protection Arrays for High-Speed Data Interfaces
General Description
The MAX3202E/MAX3203E/MAX3204E/MAX3206E are
low-capacitance ±15kV ESD-protection diode arrays
designed to protect sensitive electronics attached to
communication lines. Each channel consists of a pair of
diodes that steer ESD current pulses to VCC or GND.
The MAX3202E/MAX3203E/MAX3204E/MAX3206E pro-
tect against ESD pulses up to ±15kV Human Body
Model, ±8kV Contact Discharge, and ±15kV Air-Gap
Discharge, as specified in IEC 61000-4-2. These
devices have a 5pF capacitance per channel, making
them ideal for use on high-speed data I/O interfaces.
The MAX3202E is a two-channel device intended for
USB and USB 2.0 applications. The MAX3203E is a
triple-ESD structure intended for USB On-the-Go (OTG)
and video applications. The MAX3204E is a quad-ESD
structure designed for Ethernet and FireWire™ applica-
tions, and the MAX3206E is a six-channel device
designed for cell phone connectors and SVGA video
connections.
All devices are available in tiny chip-scale (UCSP™)
and thin QFN packages, and are specified for -40°C to
+85°C operation.
Applications
USB
USB 2.0
Ethernet
FireWire
Video
Cell Phones
SVGA Video Connections
Selector Guide
PART
MAX3202EEBS-T
MAX3202EETT
MAX3203EEBT-T
MAX3203EETT
MAX3204EEBT-T
MAX3204EETT
MAX3206EEBL-T
MAX3206EETC
ESD-
PROTECTED
I/O PORTS
2
2
3
3
4
4
6
6
TOP MARK
AFV
ADQ
ABA
ADO
ABB
ADP
ADU
AACA
Pin Configurations appear at end of data sheet.
FireWire is a trademark of Apple Computer, Inc.
UCSP is a trademark of Maxim Integrated Products, Inc.
Features
o High-Speed Data Line ESD Protection
±15kV—Human Body Model
±8kV—IEC 61000-4-2, Contact Discharge
±15kV—IEC 61000-4-2, Air-Gap Discharge
o Tiny UCSP Package Available
o Low 5pF Input Capacitance
o Low 1nA (max) Leakage Current
o Low 1nA Supply Current
o +0.9V to +5.5V Supply Voltage Range
o 2-, 3-, 4-, or 6-Channel Devices Available
Ordering Information
PART
TEMP
RANGE
PIN/BUMP-
PACKAGE
MAX3202EEBS-T
MAX3202EETT
-40°C to +85°C
-40°C to +85°C
2 x 2 UCSP*-4
6 Thin QFN-EP**
MAX3203EEBT-T
-40°C to +85°C 3 x 2 UCSP*-5
MAX3203EETT
MAX3204EEBT-T
-40°C to +85°C
-40°C to +85°C
6 Thin QFN-EP**
3 x 2 UCSP*-6
MAX3204EETT
MAX3206EEBL-T
-40°C to +85°C
-40°C to +85°C
6 Thin QFN-EP**
3 x 3 UCSP*-8
MAX3206EETC
-40°C to +85°C 12 Thin QFN-EP**
*UCSP reliability is integrally linked to the user’s assembly
methods, circuit board material, and environment. Refer to the
UCSP Reliability Notice in the UCSP Reliability section for more
information.
**EP = Exposed pad.
Typical Operating Circuit
VCC
0.1µF
PROTECTED I/0
CIRCUIT
VCC
0.1µF
I/0_
MAX3202E
MAX3203E
MAX3204E
MAX3206E
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1 page  
Low-Capacitance, 2/3/4/6-Channel, ±15kV ESD
Protection Arrays for High-Speed Data Interfaces
During an ESD event, the current pulse rises from zero
to peak value in nanoseconds (Figure 3). For example,
in a 15kV IEC-61000 Air-Gap Discharge ESD event,
the pulse current rises to approximately 45A in 1ns
(di/dt = 45 x 109). An inductance of only 10nH adds an
additional 450V to the clamp voltage. An inductance of
10nH represents approximately 0.5in of board trace.
Regardless of the device’s specified diode clamp volt-
age, a poor layout with parasitic inductance significantly
increases the effective clamp voltage at the protected
signal line.
A low-ESR 0.1µF capacitor must be used between VCC
and GND. This bypass capacitor absorbs the charge
transferred by an +8kV IEC-61000 Contact Discharge
ESD event.
Ideally, the supply rail (VCC) would absorb the charge
caused by a positive ESD strike without changing its
regulated value. In reality, all power supplies have an
effective output impedance on their positive rails. If a
power supply’s effective output impedance is 1Ω, then
by using V = I × R, the clamping voltage of VC increas-
es by the equation VC = IESD x ROUT. An +8kV IEC
61000-4-2 ESD event generates a current spike of 24A,
so the clamping voltage increases by VC = 24A × 1Ω,
or VC = 24V. Again, a poor layout without proper
bypassing increases the clamping voltage. A ceramic
chip capacitor mounted as close to the MAX3202E/
MAX3203E/MAX3204E/MAX3206E VCC pin is the best
choice for this application. A bypass capacitor should
also be placed as close to the protected device as
possible.
±15kV ESD Protection
ESD protection can be tested in various ways; the
MAX3202E/MAX3203E/MAX3204E/MAX3206E are
characterized for protection to the following limits:
• ±15kV using the Human Body Model
• ±8kV using the Contact Discharge method speci-
fied in IEC 61000-4-2
• ±15kV using the IEC 61000-4-2 Air-Gap Discharge
method
ESD Test Conditions
ESD performance depends on a number of conditions.
Contact Maxim for a reliability report that documents
test setup, methodology, and results.
Human Body Model
Figure 4 shows the Human Body Model, and Figure 5
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 device through a
1.5kΩ resistor.
RC
1MΩ
RD
1.5kΩ
CHARGE-CURRENT-
LIMIT RESISTOR
DISCHARGE
RESISTANCE
HIGH-
VOLTAGE
DC
SOURCE
Cs
100pF
STORAGE
CAPACITOR
DEVICE
UNDER
TEST
Figure 4. Human Body ESD Test Model
I
100%
90%
10%
tR = 0.7ns to 1ns
30ns
60ns
IP 100%
90%
Ir PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE)
AMPERES
36.8%
10%
0
t
0 tRL
TIME
tDL
CURRENT WAVEFORM
Figure 3. IEC 61000-4-2 ESD Generator Current Waveform
Figure 5. Human Body Model Current Waveform
_______________________________________________________________________________________ 5
5 Page 
Low-Capacitance, 2/3/4/6-Channel, ±15kV ESD
Protection Arrays for High-Speed Data Interfaces
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information
go to www.maxim-ic.com/packages.)
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet MAX3204EEBT-T.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| MAX3204EEBT-T | Low-Capacitance / 2/3/4/6-Channel / 15kV ESD Protection Arrays for High-Speed Data Interfaces | Maxim Integrated |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |