|
|
PDF DALC208SC6Y Data sheet ( Hoja de datos )
| Número de pieza | DALC208SC6Y | |
| Descripción | Automotive low capacitance diode array | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de DALC208SC6Y (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
|
No Preview Available !
DALC208SC6Y
Automotive low capacitance diode array for ESD protection
Features
■ Protection of 4 lines
■ Peak reverse voltage: VRRM = 9 V per diode
■ Very low capacitance per diode: C < 5 pF
■ Very low leakage current: IR < 1 µA
Benefits
■ Cost effective solution compared with discrete
solution
■ High efficiency in ESD suppression
■ No significant signal distortion thanks to very
low capacitance
■ High reliability offered by monolithic integration
■ Lower PCB area consumption versus discrete
solution
■ AEC-Q101 qualified
Complies with the following standards
■ ISO10605 - C = 150 pF, R = 330
– 15 kV (air discharge)
– 8 kV (contact discharge)
■ ISO10605 - C = 330 pF, R = 330
– 8 kV (air discharge)
– 8 kV (contact discharge)
■ ISO7637-3:
– Pulse 3a: Vs = -150V
– Pulse 3b: Vs = +100V
Applications
Where ESD and EOS transient overvoltage
protection in susceptible equipment is required,
such as:
■ Information and entertainment
■ Signal communications
■ Connectivity
Datasheet production data
1
SOT23-6L
■ Comfort and convenience
Figure 1. Functional diagram (top view)
I/O 1
I/O 4
REF 2
I/O 2
REF 1
I/O 3
Description
The DALC208SC6Y diode array is designed to
protect components which are connected to data
and transmission lines from overvoltages caused
by electrostatic discharge (ESD) or other
transients. It is a rail-to-rail protection device also
suited for overshoot and undershoot suppression
on sensitive logic inputs.
The low capacitance of the DALC208SC6Y
prevents significant signal distortion.
November 2012
This is information on a product in full production.
Doc ID 16362 Rev 1
1/12
www.st.com
12
1 page  
DALC208SC6Y
Technical information
Figure 7. ESD behavior: parasitic phenomena due to unsuitable layout
ESD
SURGE
Lw
Lw di
Vf dt
REF2=+Vcc
Vcl+
167V
Lw di
dt
POSITIVE
SURGE
Vcc+Vf
I/O
tr=1ns
VI/O
Lw di
dt
Vcl+
=
Vcc+Vf+Lw
di
dt
Vcl- =
-Vf-
Lw
di
dt
surge >0
surge <0
tr=1ns
-Vf
-Lw di
dt
NEGATIVE
SURGE
REF1=GND
-162V
Vcl-
t
t
2.3 How to ensure good ESD protection
While the DALC208SC6Y provides a high immunity to ESD surge, an efficient protection
depends on the layout of the board. In the same way, with the rail to rail topology, the track
from the VREF2 pin to the power supply +VCC and from the VREF1 pin to GND must be as short
as possible to avoid over voltages due to parasitic phenomena. See Figure 7.
It’s often harder to connect the power supply near to the DALC208SC6Y unlike the ground
thanks to the ground plane that allows a short connection.
To ensure the same efficiency for positive surges when the connections can’t be short
enough, we recommend putting a capacitance of 100 nF close to the DALC208SC6Y,
between VREF2 and ground, to prevent these kinds of overvoltage disturbances.
See Figure 8.
The addition of this capacitance will allow a better protection by providing a constant voltage
during a surge.
Figure 9, Figure 10, and Figure 11 show the improvement of the ESD protection according
to the recommendations described above.
Doc ID 16362 Rev 1
5/12
5 Page 
DALC208SC6Y
5 Ordering information
Ordering information
Table 5. Ordering information
Order code
Marking
Package
Weight Base qty Packing mode
DALC208SC6Y
DALY
SOT23-6L 16.7 mg 3000
Tape and reel
For the latest information on available order codes see the product pages on www.st.com.
6 Revision history
Table 6. Document revision history
Date
Revision
07-Nov-2012
1 First issue.
Changes
Doc ID 16362 Rev 1
11/12
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet DALC208SC6Y.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| DALC208SC6 | LOW CAPACITANCE DIODE ARRAY | STMicroelectronics |
| DALC208SC6Y | Automotive low capacitance diode array | STMicroelectronics |
| 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 |