AOZ8904 Datasheet PDF - Alpha & Omega Semiconductors

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AOZ8904
Alpha & Omega Semiconductors

Part Number AOZ8904
Description Ultra-Low Capacitance TVS Diode Array
Page 11 Pages


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AOZ8904
Ultra-Low Capacitance TVS Diode Array
General Description
The AOZ8904 is a transient voltage suppressor array
designed to protect high speed data lines from Electro
Static Discharge (ESD) and lightning.
This device incorporates eight surge rated, low
capacitance steering diodes and a Transient Voltage
Suppressor (TVS) in a single package. During transient
conditions, the steering diodes direct the transient to
either the positive side of the power supply line or to
ground. They may be used to meet the ESD immunity
requirements of IEC 61000-4-2, Level 4 (±15kV air,
±8kV contact discharge).
The AOZ8904 comes in a Halogen Free and RoHS
compliant SOT-23 and SC-70 packages. It is rated over a
-40°C to +85°C ambient temperature range.
Features
ESD protection for high-speed data lines:
Exceeds: IEC 61000-4-2 (ESD) ±24kV (air),
±24kV (contact)
IEC 61000-4-5 (Lightning) 4A (8/20µs)
Human Body Model (HBM) ±24kV
Small package saves board space
Low insertion loss
Protects four I/O lines
Low clamping voltage
Low operating voltage: 5.0V
Applications
USB 2.0 Power and Data Line Protection
Video Graphics Cards
Monitors and Flat Panel Displays
Digital Video Interface (DVI)
Typical Application
USB Host
Controller
RT
RT
VBUS
AOZ8904
Downstream
+5V Ports
VBUS
D+
D-
GND
+5V
VBUS
RT
D+
RT
D-
GND
Figure 1. 2 USB High Speed Ports
Rev. 2.1 January 2011
www.aosmd.com
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Ordering Information
Part Number
AOZ8904CIL
AOZ8904HIL
Ambient Temperature Range
-40°C to +85°C
Package
SOT-23-6
SC-70-6
AOS Green Products used reduced levels of Halogens, and are also RoHS compliant.
Please visit www.aosmd.com/web/quality/rohs_compliant.jsp for additional information.
Pin Configuration
CH1 1
6 CH4
AOZ8904
Environmental
RoHS Compliant
Green Product
VN 2
5 VP
CH2 3
4 CH3
SOT-23-6 / SC-70-6
(Top View)
Absolute Maximum Ratings
Exceeding the Absolute Maximum ratings may damage the device.
Parameter
VP – VN
Peak Pulse Current (IPP), tP = 8/20µs
Peak Power Dissipation (8 x 20µs@ 25°C)
Storage Temperature (TS)
ESD Rating per IEC61000-4-2, contact(1)
ESD Rating per IEC61000-4-2, air(2)
ESD Rating per Human Body Model(2)
Junction Temperature (TJ)
Notes:
1. IEC 61000-4-2 discharge with CDischarge = 150pF, RDischarge = 330.
2. Human Body Discharge per MIL-STD-883, Method 3015 CDischarge = 100pF, RDischarge = 1.5k.
Rating
6V
4A
50W
-65°C to +150°C
±24kV
±24kV
±24kV
-40°C to +125°C
Rev. 2.1 January 2011
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AOZ8904
Electrical Characteristics
TA = 25°C unless otherwise specified
Symbol
Parameter
VRWM
VBR
IR
VF
VCL
Cj
ΔCj
Reverse Working Voltage
Reverse Breakdown Voltage
Reverse Leakage Current
Diode Forward Voltage
Channel Clamp Voltage
Positive Transients
Negative Transient
Channel Clamp Voltage
Positive Transients
Negative Transient
Channel Clamp Voltage
Positive Transients
Negative Transient
Junction Capacitance
Channel Input Capacitance
Matching
Conditions
Between pin 5 and 2(4)
IT = 1mA, between pins 5 and 2(5)
VRWM = 5V, between pins 5 and 2
If = 15mA
GIPrPo=un1dA(3,)t(p6)(=8)100ns, any I/O pin to
IPP = 5A, tp = 100ns, any I/O pin to
Ground(3)(6)(8)
IPP = 12A, tp = 100ns, any I/O pin to
Ground(3)(6)(8)
VR = 0V, f = 1Mhz, any I/O pin to Ground(3)(7)
VR = 0V, f = 1Mhz, between I/O pins(3)(7)
Min.
6.6
0.7
Typ.
Max.
5.5
1
0.85 0.95
11.00
-2.00
14.00
-3.50
18.00
-5.00
1.25
1.3
0.03
Notes:
3. These specifications are guaranteed by design.
4. The working peak reverse voltage, VRWM, should be equal to or greater than the DC or continuous peak operating voltage level.
5. VBR is measured at the pulse test current IT.
6. Measurements performed with no external capacitor on VP (Pin 5 floating).
7. Measurements performed with VP biased to 3.3 Volts (Pin 5 @ 3.3V).
8. Measurements performed using a 100 nSec Transmission Line Pulse (TLP) system.
Units
V
V
µA
V
V
V
V
V
V
V
pF
pF
Rev. 2.1 January 2011
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AOZ8904
Typical Performance Characteristics
Clamping Voltage vs. Peak Pulse Current
(tperiod = 100ns, tr = 1ns)
17
16
15
14
13
12
11
10
9
0 2 4 6 8 10
Peak Pulse Current, IPP (A)
12
Forward Voltage vs. Forward Current
(tperiod = 100nS, tr = 1ns)
7
6
5
4
3
2
1
0
0 2 4 6 8 10
Forward Current, IPP (A)
12
I/O – Gnd Insertion Loss (S21) vs. Frequency
(Vp = 3.3V)
1
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
1 10 100 1000
Frequency (MHz)
Analog Crosstalk (I/O–I/O) vs. Frequency
20
0
-20
-40
-60
-80
10
100
Frequency (MHz)
1000
I/O – I/O Insertion Loss (S21) vs. Frequency
(Vp = Float)
1
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
1
10 100 1000
Frequency (MHz)
Rev. 2.1 January 2011
www.aosmd.com
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