EPC700 EPC [Espros Photonics corp], EPC700 Datasheet

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EPC700

Manufacturer Part Number
EPC700
Description
24V/50mA General-Purpose Output-Driver
Manufacturer
EPC [Espros Photonics corp]
Datasheet
General Description
The epc70x family is a general purpose low-side power switch for
24V interfaces. A high-side switch is also available, please refer to
the separate data sheet of epc701/703. The device is very easy to
use and 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.
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
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.
epc700 and epc702 are easy to use and reduce the need of ex-
ternal components to the minimum, thus saving pcb space and
money.
Functional Block Diagram
© 2011 ESPROS Photonics Corporation
Characteristics subject to change without notice
STATUS
IN
GND
GND
GND
24V/50mA General-Purpose Output-Driver
Control logic
Configuration
registers
delay / release
Features
 Low-side power switch
 Driving capability without external transistor 50 mA/30VDC
 Programmable short-circuit detection delay-time and recovery time
 Static (epc700) or flashing (epc702) indication of the over-current
 Self-healing output mode
 Available in CSP6 package with very small footprint and standard
Applications
 PLC
 Sensors
 Controllers
Over-current
1
status
QFN16 package
Over current
sense
+
GND
ref
+
GND
VDD
Datasheet epc700_702 - V2.2
epc700/epc702
R
I
I
sink
SENSE
Source
www.espros.ch
OUT
SENSE

Related parts for EPC700

EPC700 Summary of contents

Page 1

... The over-current information is indicated on the STATUS pin. epc700 and epc702 are easy to use and reduce the need of ex- ternal components to the minimum, thus saving pcb space and money. ...

Page 2

... Max. 9 300 400 -50 -60 -70 0.18 0.2 0.25 -0.5 2 5.5 -0.3 0.8 -8 -10 -12 1.5 1.7 1.9 2.0 5.5 -0.3 0.8 0.25 100 150 200 100 1.0 1.2 0.7 1.0 40.0 50.0 60.0 5/10/20/50/100/200/500/1,000 400 500 600 10/20/50/100/200/500/1,000/ 1,500 1,000 200 30 Datasheet epc700_702 - V2.2 www.espros.ch Units Units μ kΩ mW μs μs μs ms μs nF ...

Page 3

... This document is confidential and protected by law and international trades. It must not be shown to any third party nor be copied in any form without our written permission LST 03.08.2010 Page 1 3 epc700/epc702 GND IN Top View STATUS 16-Pin QFN Package LST 03.08.2010 Page 1 Datasheet epc700_702 - V2.2 www.espros. ...

Page 4

... A short on the load side will lead to an over-current through OUT over-current stays longer than the time t shown in the figure below. At the same time STATUS changes its state to indicate an over-current situation to an external controller. STATUS can also be used to drive directly an indicator LED due to its 10mA driving capability. epc700 delivers a constant on-signal, whereas epc702 has a flashing output. ...

Page 5

... V th sens <t t del ext . del V th sens del ext minOFF Figure 4: Over-current reset sequence V th sens t t <t del ext minOFF LST Figure 5: Over-current status reset 5 epc700/epc702 t LED 01.08.2010 Page 1 Datasheet epc700_702 - V2.2 , the device tries minOFF . www.espros.ch ...

Page 6

... Application Information epc700 and epc702 have two modes of operation, where the SENS pin is used to define the mode. When SENS is tied to VDD, the chip operates as a sink driver capable to sink max. 50mA at 30VDC (refer to Figure 6). The load is connected directly between V If the current through the internal switch exceeds I If the SENS pin is at low level, the OUT pin is driven by a source driver also capable to drive 50mA into an external power transistor ...

Page 7

... Table 2: Configuration of the delay and the recovery time 7 epc700/epc702 ). This “self-healing” mechanism is very use- minOFF shall be changed accordingly in order to minOFF maximum 540kHz Datasheet epc700_702 - V2 www.espros.ch ...

Page 8

... Table 4 shows the value mapping Comments Default value 000 and [ 100μs del Datasheet epc700_702 - V2 111. 3 www.espros.ch ...

Page 9

... Designed <Name> 26.02.2009 Approved <Name> <Data> Scale M 1:1 DIN A4 Page 1 Part Name Part No. <x000 000> <Partname> File: Unbenannt Pin 1 Solder balls Sn7.5Ag2.5 LST 9 epc700/epc702 Layout Recommendations ∅ 0.3 0.43 0.43 1.86 no solder mask inside this area Bottom View 0.5 0.25 0.3 LST 08.02.2012 Page 1 . Datasheet epc700_702 - V2.2 www.espros.ch . 25.05.2011 Page 1 ...

Page 10

... Pin 1 2 QFN16 Tape Pin 1 Package RoHS compliance CSP6 Yes 4 QFN16 Yes CSP6 Yes QFN16 Yes CSP6 Yes QFN16 Yes CSP6 Yes QFN16 Yes 10 epc700/epc702 Pin 1 8 Pin 1 Packaging Method Reel Reel 8 Reel Reel Reel Reel Reel Reel Datasheet epc700_702 - V2.2 www.espros.ch ...

Page 11

... ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated products in automotive applications, epc will not be responsible for any failure to meet such requirements. © 2011 ESPROS Photonics Corporation Characteristics subject to change without notice 11 epc700/epc702 Datasheet epc700_702 - V2.2 www.espros.ch ...

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