EPC701 Datasheet, PDF (1/11 Pages) Espros Photonics corp – 24V/50mA General-Purpose Output-Driver

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epc701/epc703
24V/50mA General-Purpose Output-Driver
General Description
Features
The epc70x family is a general purpose high-side power switch for 
24V interfaces. A low-side switch is also available, please refer to 
the separate data sheet of epc700/702. The device is capable to 
drive a load of 50mA at 30VDC. If a higher driving current is 
necessary or if the output voltage shall be higher than 30VDC,
these chips can be used to drive an external power transistor. In 
this mode of operation, the external transistor is fully protected 
against over-current by the epc chip.
High-side power switch
Driving capability without external transistor 50 mA/30VDC
Programmable short-circuit detection delay-time and recovery time
Static (epc701) or flashing (epc703) indication of the over-current -
status
Self-healing output mode
Available in CSP6 package with very small footprint and standard
QFN16 package
If the current through the external load exceeds a specified
threshold during a longer time period than a predefined time, the
output is turned off to protect the output switch. The switch is
Applications
turned on again after a predefined off-time, thus enabling the load
again in a self-healing mechanism. The over-current information is
indicated on the STATUS pin.



PLC
Sensors
Controllers
epc701 and epc703 are easy to use and reduce the need of ex-
ternal components to the minimum, thus saving pcb space and
money.
Functional Block Diagram
STATUS
GND
IN
GND
GND
Over-current
delay / release
Control logic
Configuration
registers
VDD VDD
+
ref
–
Over current
sense
+
R_SENSE
I_Source
I_sink
GND
SENSE
OUT
© 2011 ESPROS Photonics Corporation
1
Characteristics subject to change without notice
Datasheet epc701_703 - V2.2
www.espros.ch