VBUS053AZ-HAF Vishay, VBUS053AZ-HAF Datasheet - Page 3

• Manufacturer Part Number: VBUS053AZ-HAF
• Description: Usb-otg Bus-port Esd-protection For V = 12 V
• Manufacturer: Vishay

Application Note
The VBUS053AZ-HAF is intended as an ESD-protection and transient voltage suppressor for one USB-OTG
port.
The LLP75-7L package contains two separate dies which are mounted on a common ground plane (pin 7).
The high-speed data lines D+, D- and ID, are connected to pins 1, 2, and 3. As long as the signal voltage on
the data lines is between the ground- and the 5 V working range, the low capacitance PN-diodes offer a very
high isolation to ground and to the other data lines. But as soon as any transient signal like an ESD-signal,
exceeds this working range of 5 V in either the positive or negative direction, one of the PN-diodes gets into
the forward mode and clamps the transient either to ground or to the avalanche break through level.
An extra avalanche diode (separate die) clamps the supply line voltage (V
range to ground (pin 7).
Due to the “two die construction” the V
transient signal, i.e. coming from a charger, the data lines will not be influenced.
Typical Characteristics
T
Document Number 81845
Rev. 1.0, 07-Oct-08
amb
20557
= 25 °C, unless otherwise specified
120 %
100 %
80 %
60 %
40 %
20 %
Figure 1. ESD Discharge Current Wave Form
53 %
27 %
0 %
- 10 0 10 20 30 40 50 60 70 80 90 100
acc. IEC 61000-4-2 (330 Ω/150 pF)
Rise time = 0.7 ns to 1 ns
Time (ns)
GND
For technical support, please contact: [e-mail]
V
7
6
BUS
D+
1
BUS
5
D-
2
line has a very high isolation to the data lines. In case of a destructive
4
ID
3
20548
(pinning top view)
Figure 2. 8/20 µs Peak Pulse Current Wave Form
100 %
80 %
60 %
40 %
20 %
6
1
0 %
7
0
5
2
VBUS053AZ-HAF
BUS
4
3
10
acc. IEC 61000-4-5
at pin 6) above the 12 V working
Time (µs)
Vishay Semiconductors
21103
8 µs to 100 %
20
20 µs to 50 %
30
www.vishay.com
40
3