High Side Driver - 8 Channel based on VN808
Features
Q Application conforms to: IEC 61000-4-4 (4kV),
IEC 61000-4-5 (2kV), IEC 61000-4-6 (10kV)
Q 16 output channels up to 0.5A per channel
Q 16 digital inputs & 2 digital output
Q Decoupling power & microcontroller section by
optocouplers
Q DC/DC converter on boards
Q Protection against Surge/Burst by ST Transils
Q Operation temperature -25°C to 85°C
Q Power supply up to 35V
Q Very low stand-by current
Applications
This reference design boards is an industrial
application of the ST high side drivers VN808 .
The boards respect internationa l standards of the
electromagnetic compatibility as well as immunity
tests. They have been tested at different typical
ambient temperatures. The reference design is
suitable for use in Programmable Logic
Controllers to produce the related digital outputs
according to IEC standards.
STEVAL-IFP002V1
Data Brief
STEVAL-IFP002V1
Circuit description
In order to protect the high-side driver (HSD) from
the harsh industrial conditions of power supply
lines, usually optocouplers and Transil diodes are
used to separate the application control circuits
from the power supply. The VN808 reference
design board uses multi-channel optocouplers
suitable for surface-mounted assemblies that
consist of a photo t rans istor opt ically coupled to a
gallium-arsenide infrared emitting diode. The
isolation voltage for this type of optocoupler is
2500 V
diodes protect the HSD against transient
overvoltages. The reference design board is
assembled with uni-directional Transil diodes
because they protect the HSD against both
positive and negative surge pulses.
RMS. The clamping function of Transil
Rev 1
January 2006 1/4
For further information contact your local STMicroelectronics sales office
www.st.com
4
Board Schematic STEVAL-IFP002V1
1 Board Schematic
Figure 1. Scheme
2/4
STEVAL-IFP002V1 Revision histo ry
2 Revision history
Date Revision Changes
31-Jan-2006 1 Initial relea se.
3/4
STEVAL-IFP002V1
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implic ation or otherwise under any patent or patent ri ghts of STM i croelectr onics. Sp ecifications menti oned in thi s publicati on are subject
to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authoriz ed for use as cri t ic al componen ts in life sup port devices or systems wi thout express written approval of STMi croelectronics.
The ST logo is a registered t rademark of ST M i croelectr oni cs.
All other nam es are the pro perty of thei r respectiv e owners
© 2006 STM icroelectronics - All ri ghts reserved
STMicroelectron ic s group of companies
Austra l i a - Be l gi um - Brazil - Canada - Chi na - Czech Rep ubl i c - Finlan d - France - Germ any - Hong Kong - India - Isr ael - Italy - Japan -
Malaysi a - M al ta - Morocco - Singapore - Spain - Sweden - Swit zerland - Un i ted Kingdom - Uni ted States of America
www.st.com
4/4
Loading...