USBLC6-2SC6 STMicroelectronics, USBLC6-2SC6 Datasheet - Page 5

• Manufacturer Part Number: USBLC6-2SC6
• Description: IC ESD PROTECTION LO CAP SOT23-6
• Manufacturer: STMicroelectronics

Specifications of USBLC6-2SC6

• Voltage - Working: 5V
• Voltage - Clamping: 6V
• Technology: Mixed Technology
• Number Of Circuits: 2
• Applications: USB
• Package / Case: SOT-23-6
• Polarity: Bidirectional
• Channels: 2 Channels
• Clamping Voltage: 17 V
• Operating Voltage: 5 V
• Breakdown Voltage: 6 V
• Termination Style: SMD/SMT
• Peak Surge Current: 5 A
• Capacitance: 3.5 pF
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Dimensions: 1.75 (Max) mm W x 3.05 (Max) mm L
• Diode Type: Low Capacitance / ESD Protection
• Clamping Voltage Vc Max: 17V
• Diode Case Style: SOT-23
• No. Of Pins: 6
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-5235-2; USBLC6-2SC6

USBLC6-2
2.3
Figure 7.
We can significantly reduce this phenomena with simple layout optimization. It is for this
reason that some recommendations have to be followed (see
protection).
Figure 6.
How to ensure good ESD protection
While the USBLC6-2 provides high immunity to ESD surge, efficient protection depends on
the layout of the board. In the same way, with the rail to rail topology, the track from data
lines to I/O pins, from V
possible to avoid overvoltages due to parasitic phenomena (see
layout consideration)
ESD behavior: layout optimization
Unsuitable layout
Optimized layout
1 1
1 1
2
3
2
3
V
V
V
CL
CL-
ESD surge on data line
TRANSIL
+ = V
ESD behavior: parasitic phenomena due to unsuitable layout
= -V - L
TRANSIL
F
=
L
I/O
I/O
V
BR
I/O pin
6
5
4
6
5
4
di
dt
+ V + L
+
CC
Rd.Ip
L
- L
F
I/O
GND
dt
di
to V
I/O
L
L
dt
V
di
VBUS
GND
F
di
dt
BUS
+ L
V
GND
GND pin
CC
V
L
pin and from GND plane to GND pin must be as short as
TRANSIL
GND
pin
di
dt
di
dt
Figure 8.
surge > 0
surge > 0
V
CL
V
Data line
BUS
ESD SURGE
L
-L
I/O
I/O
V
ESD behavior: measurement
conditions
di
dt
di
dt
TRANSIL
+ L
- L
GND
GND
+ V
- V
di
dt
di
dt
F
IN
F
TEST BOARD
2.3: How to ensure good ESD
t = 1 ns
t = 1 ns
r
r
V
V
CL-
CL+
Figure 6.
Technical information
Negative
Positive
OUT
Surge
Surge
and
Figure 7.
t
t
+5 V
5/14
for