DS9503P DALLAS [Dallas Semiconductor], DS9503P Datasheet
![no-image](/images/no-image-200.jpg)
DS9503P
Manufacturer Part Number
DS9503P
Description
ESD Protection Diode with Resistors
Manufacturer
DALLAS [Dallas Semiconductor]
Datasheet
1.DS9503P.pdf
(3 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DS9503P
Manufacturer:
DALLAS
Quantity:
15
Part Number:
DS9503P
Manufacturer:
MAXIM/美信
Quantity:
20 000
Company:
Part Number:
DS9503P+
Manufacturer:
Maxim Integrated Products
Quantity:
34 506
Company:
Part Number:
DS9503P+
Manufacturer:
JVC
Quantity:
6 224
Part Number:
DS9503P+
Manufacturer:
MAXIM/美信
Quantity:
20 000
SPECIAL FEATURES
§ Zener characteristic with voltage snap–back
§ High avalanche voltage, low leakage and low
§ Compatible to all 5V logic families
§ Space saving, low inductance TSOC surface
§ On–chip 5 resistors for isolation at both
§ Industrial temperature range
DESCRIPTION
This DS9503 is designed as an ESD protection device for 1–Wire MicroLAN interfaces. In contrast to the
DS9502, the DS9503 includes two 5 isolation resistors on chip. Although 5 are negligible during
communication, they represent a high impedance relative to the conducting diode during an ESD event.
Thus, the diode absorbs the energy while the resistors further isolate and protect the circuit at the other
side of the package. If used with circuits that already have a strong ESD–protection at their I/O port, the
ESD protection level is raised to more that 27 kV (IEC 801–2 Reference model). In case of abnormal
ESD hits beyond its maximum ratings the DS9503 will eventually fail “short” thus preventing further
damage.
exceeds the trigger voltage, the I/V characteristic of the device will “snapback” allowing the same or
higher amount of current to flow, but at a significantly lower voltage. As long as a minimum current or
voltage is maintained, the device will stay in the “snapback mode”. If the voltage or the current falls
below the holding voltage or holding current, the device will abruptly change to its normal mode and
conduct only a small leakage current.
During normal operation the DS9503 behaves like a regular 7.5V Zener Diode. When the voltage
www.dalsemi.com
to protect against ESD hits
capacitance avoid signal attenuation
mount package
anode and cathode terminals
ESD Protection Diode with Resistors
1 of 3
SYMBOL AND CONVENTIONS
PACKAGE OUTLINE
ORDERING INFORMATION
DS9503P
1
2
3
See Mech. Drawings
3.7 X 4.0 X 1.5 mm
TOP VIEW
Section
TSOC SURFACE MOUNT PACKAGE
6-lead TSOC package
IC
C
A
6
5
4
VCA
SIDE VIEW
DS9503
102199
Related parts for DS9503P
DS9503P Summary of contents
Page 1
... ESD Protection Diode with Resistors SYMBOL AND CONVENTIONS PACKAGE OUTLINE TSOC SURFACE MOUNT PACKAGE TOP VIEW 3.7 X 4.0 X 1.5 mm See Mech. Drawings Section ORDERING INFORMATION DS9503P DS9503 C IC VCA SIDE VIEW 4 6-lead TSOC package 102199 ...
Page 2
DC CHARACTERISTICS Figure 1 DC CHARACTERISTICS DETAIL DRAWING Figure 2 TEST PULSE WAVEFORM Figure 3 TYPICAL APPLICATION Figure DS9503 102199 ...
Page 3
PHYSICAL SPECIFICATIONS Size Weight ABSOLUTE MAXIMUM RATINGS* Operating Temperature Storage Temperature Soldering Temperature Continuous DC Current Through Package This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in ...