IC-DXC_11 [ICHAUS]
DIGITAL SENSOR I/O DRIVER; 数字式传感器的I / O驱动程序
| 型号： | IC-DXC_11 |
| 厂家： | 
IC-HAUS GMBH |
| 描述： | DIGITAL SENSOR I/O DRIVER |
| 文件： | 总11页 (文件大小：478K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
iC-DXC
DIGITAL SENSOR I/O DRIVER
Rev A0.8, Page 1/11
FEATURES
APPLICATIONS
♦ Digital sensors
♦ Light barriers
♦ Configurable high-side, low-side and push-pull operation
♦ 200 mA output current
♦ Proximity switches
♦ I/O-Link complaint
♦ 5 µs input filter for spike suppression
♦ Reverse polarity protection
♦ Current limited output (< 450 mA)
♦ Wide supply voltage range from 8 to 30 V
♦ Driver shut-down with over temperature
♦ Integrated free-wheeling diode for inductive loads
♦ Sensor supply voltage output of 5 V at 10 mA
PACKAGES
DFN8 3x3
BLOCK DIAGRAM
..30V
VB
VB
CVB
1μF
REG
5V
VREF
High Side Switch
+
<150
C
-
VOUT
36V
36V
CVOUT
100nF..
OUT
DIGITAL INPUT
OE
&
&
NIN
GND
GND
iC-DXC
Low Side Switch
MON
CFO
VRH
VRL
FILT
=1
++
-
+
Copyright © 2011 iC-Haus
http://www.ichaus.com
iC-DXC
DIGITAL SENSOR I/O DRIVER
Rev A0.8, Page 2/11
DESCRIPTION
The iC-DXC is a simple I/O circuit capable of driving Forcing the output pin OUT from his current state is
ohmic, inductive and capacitive loads and features signaled at pin MON. This can be used to implement
integrated reverse polarity protection.
an IO-Link Wake-Up detection.
The output current is at least 200 mA from a supply Output transitions are slew-rate limited to reduce in-
voltage of 8 to 30 V. terference.
With input OE = high the output works as a push-pull The output is current limited to 450 mA and short cir-
driver controlled by pin NIN. If pin NIN is set either to cuit proof by shutting down the driver with excessive
low or high, the output acts as a high-side (PNP) or temperature.
low-side (NPN) driver respectively, controlled by the
input OE.
A regulated 5 V low power supply is available at pin
VOUT to supply external circuitry with up to 10 mA.
PACKAGES DFN8 3x3
PIN CONFIGURATION
PIN FUNCTIONS
No. Name Function
1 VOUT Regulated +5 V Voltage
2 MON Monitor Output
3 GND Ground
8
7
6
5
4 NIN
5 OE
Input
Output Enabled
Backside
Pad/Shield
(BP)
6 CFO Feedback Channel Output
7 OUT Driver Output
1
2
3
4
8 VB
Supply Voltage
iC-DXC
DIGITAL SENSOR I/O DRIVER
Rev A0.8, Page 3/11
PACKAGE DIMENSIONS
RECOMMENDED PCB-FOOTPRINT
2.40
SIDE
0.65
0.35
BOTTOM
TOP
3
2.38
0.65
0.30
dra_dfn8-1_pack_1, 15:1
All Dimensions in mm.
iC-DXC
DIGITAL SENSOR I/O DRIVER
Rev A0.8, Page 4/11
ABSOLUTE MAXIMUM RATINGS
Beyond these values damage may occur; device operation is not guaranteed. Absolute Maximum Ratings are no operating conditions!
Integrated circuits with system interfaces, e.g. via cable accessible pins (I/O pins, line drivers) are per principle endangered by injected
interferences, which may compromise the function or durability. The robustness of the devices has to be verified by the user during system
development with regards to applying standards and ensured where necessary by additional protective circuitry. By the manufacturer
suggested protective circuitry is for information only and given without responsibility and has to be verified within the actual system with
respect to actual interferences.
Item Symbol
No.
Parameter
Conditions
Unit
Min.
-36
-36
-36
Max.
G001 VB
Supply Voltage
OUT Voltage
GND Voltage
Referenced to lowest voltage of GND, OUT
Referenced to highest voltage of GND, OUT
36
V
V
G002 OUT
G003 GND
G004 Es()
Referenced to lowest voltage of VB, GND
Referenced to highest voltage of VB, GND
36
36
V
V
Referenced to lowest voltage of VB, OUT
Referenced to highest voltage of VB, OUT
V
V
Maximum Surge Energy as indication Single pulse test between each pins of VB,
6.5
mJ
for external protection design
OUT or GND. Pulse magnitude less than 55 V,
duration less than 100 µs
G005 Vd()
G006 Tj
ESD Susceptibility at all pins
Junction Temperature
HBM, 100 pF discharged through 1.5 kΩ
2
kV
°C
°C
-40
-40
150
150
G007 Ts
Storage Temperature
THERMAL DATA
Operating Conditions: VB = 8..30 V
Item Symbol
No.
Parameter
Conditions
Unit
Min. Typ. Max.
-40 +150
T01 Ta
Operating Ambient Temperature Range no thermal shutdown
°C
All voltages are referenced to ground unless otherwise stated.
All currents flowing into the device pins are positive; all currents flowing out of the device pins are negative.
iC-DXC
DIGITAL SENSOR I/O DRIVER
Rev A0.8, Page 5/11
ELECTRICAL CHARACTERISTICS
Operating Conditions: VB = 8...30 V, Tj = -40...150 °C, unless otherwise stated
Item Symbol
No.
Parameter
Conditions
Unit
Min.
Typ.
Max.
Total Device
001 Vc()lo
Clamp Voltage lo at NIN, OE,
VOUT
I() = -1 mA
-1.4
8
V
V
002 VB
Permissible Supply Voltage
Supply Current in VB
Referenced to GND
24
30
003
I(VB)
no load,
NIN = hi, OE = lo
NIN = hi, OE = hi
NIN = lo, OE = hi
1.2
1.4
1.6
mA
mA
mA
004 V(VB)on
Turn-on threshold
increasing VB
6
8
V
005
Ilk(GND)rp Reverse Polarity Leakage
Current
V(VB) = 0; V(OUT) = 0; V(GND)= 0...30 V
300
uA
006 Ilk(OUT)rp Reverse Polarity Leakage Cur-
rent
V(VB)=0;V(GND)=0; V(OUT)= 0...30 V
V(OUT) =0 ; GND open; ; V(VB)= 0...30 V
300
300
uA
uA
007 Ilk(VB)rp
Reverse Polarity Leakage Cur-
rent
Output characteristics
101
Vs(OUT)lo Saturation voltage Low-Side
driver
NIN = hi, OE = hi
I(OUT) = 100 mA
I(OUT) = 200 mA
1.5
2.1
V
V
102
Vs(OUT)hi Saturation voltage High-Side
driver
NIN = lo, OE = hi
I(OUT) = -100 mA
I(OUT) = -200 mA
-1.5
-2.1
V
V
103 Isc()lo
104 Isc()hi
Short-Circuit Current lo in OUT
V(OUT) = 3...VB
200
450
mA
mA
Short-Circuit Current Hi in OUT V() = 0...VB − 3 V
Leakage Current at OUT
-450
-200
105
llk()
OUTPUT Disabled
V(OUT) = -6...0 V
V(OUT) = 0...VB
V(OUT) > VB...30 V
-100
-40
0
0
40
100
µA
µA
µA
106 SR()
Slew Rate (switch off → on,
switch on → off )
VB = 30 V, Cl = 2.2 nF, I(OUT) = 0
40
-36
47
V/µs
107 Vfw(OUT)lo Freewheeling Voltage
108 Vfw(OUT)hi Freewheeling Voltage
Temperature Monitor
I(OUT) = -1 mA,
with reference to VB
-47
36
V
I(OUT) = 1 mA,
with reference to GND
V
201 Toff
Over-temperature shutdown
increasing Tj
150
180
2
°C
Inputs OE, NIN
301 Vt()hi
Input Threshold Voltage hi at
NIN, OE
V
V
302 Vt()lo
Input Threshold Voltage lo at
NIN, OE
0.8
303 Vt()hys
304 Ipd()
305 tpio
Hysteresis at NIN, OE
Vt()hys = Vt()hi − Vt()lo
V() > 0.4 V
200
2
mV
µA
µs
Pull-Down Current at NIN, OE
150
6.5
Propagation Delay
2.1
NIN, OE → OUT
306 tsup()
Permissible Spurious Pulse
Width at NIN, OE
1.6
µs
µs
307 ttrig()
Required Pulse Width at NIN, OE
4
REG Series Regulator
401
V(VOUT) Regulated output voltage
VB = 9...30 V, I(VOUT) = 10...0 mA
VB = 8...9 V, I(VOUT) = 10...0 mA
4.7
4.5
5.3
5.3
V
V
402
C(VOUT) Capacitor at VOUT
I(VOUT) = 0
I(VOUT) > 0
0
0.1
10
10
µF
µF
403 Isc(VOUT) Short circuit current at VOUT
VOUT connected to GND
-125
mA
iC-DXC
DIGITAL SENSOR I/O DRIVER
Rev A0.8, Page 6/11
ELECTRICAL CHARACTERISTICS
Operating Conditions: VB = 8...30 V, Tj = -40...150 °C, unless otherwise stated
Item Symbol
No.
Parameter
Conditions
Unit
Min.
Typ.
Max.
Feedback Channel
501 Vt1(OUT)hi Input Threshold 1 hi at OUT
502 Vt1(OUT)lo Input Threshold 1 lo at OUT
503 Vt2(OUT)hi Input Threshold 2 hi at OUT
504 Vt2(OUT)lo Input Threshold 2 lo at OUT
VB < 18 V
59
44
10
8.3
1
66
50
74
56
%VBR
VB < 18 V
%VBR
VB > 18 V
11.3
9
12.5
10.5
V
V
VB > 18 V
505 Vt()hys
506 tpcf
Hysteresis
Vt(OUT)hys = Vt(OUT)hi − Vt(OUT)lo
V(CFO) = 10 ↔ 90%
V
Propagation Delay
1
5
µs
OUT → CFO
507 Vs()lo
508 Isc()lo
509 Ilk()
Saturation Voltage lo at
CFO/MON
I(CFO/MON) = 1.0 mA
0.4
50
10
14
V
Short Circuit Current lo in
CFO/MON
V(CFO/MON) = 0.4 V...VOUT
1
mA
µA
us
Leakage Current at CFO
Open collector mode, V(CFO) = 0 V...VOUT,
CFO = off
-10
5.5
510 tdre
Propagation Delay
Short-circuit
OUT → MON
iC-DXC
DIGITAL SENSOR I/O DRIVER
Rev A0.8, Page 7/11
DESCRIPTION OF FUNCTIONS
iC-DXC is a current limited switching channel which Output characteristics of OUT
enables digital sensors to drive peripheral elements. The switching channel is current limited to a value be-
They are designed to cope with high driver currents. tween 150mA and 450mA. (cf. Electrical Characteris-
The switches are reverse-polarity protected, feature a tics Nos. 103, 104). The current limitation works only
free-wheeling circuit for inductive loads, and a current for voltages higher than 3 V at OUT resp. lower than
limited output.
VBO − 3 V. For smaller output voltages the current lim-
itation is reduced in order to minimize the saturation
voltages without increasing the power dissipation. Fig-
Reverse polarity protection
The pins VB, OUT an GND on the line side of the chip ures 1 and 2 show the characteristic of the switching
are reverse polarity protected. As far as the maximum channels when activated. Region "A" is the saturation
voltage ratings are not exceeded, no possible supply range, where the current limitation is not fully active yet
combination at the line side pins can damage the chip. and region "B" is the current limited range. Region "C"
corresponds to the free-wheeling circuit activated. The
I(OUT)
switching channel is designed so that the low side can
only sink current and high side can only source current
(no reverse current).
Isc()lo
Free-wheeling circuit for inductive loads
The free-wheeling circuit is always present and does
GND
V(OUT)
not depend on the current output status. It is acti-
vated by voltages higher than 36 V at OUT referenced
to GND or lower than -36 V at OUT referenced to VB.
In that case the correspondent channel will switch on
without current limitation (see Figure 3).
3V
VB
A
B
C
36V
Figure 1: OUT characteristic when Low side active
I(OUT)
I(OUT)
36V
VB-36V
C
GND
B
A
V(OUT)
VB
VB-36V
V(OUT)
Isc()hi
GND
VB
GND+36V
36V
36V
Figure 2: OUT characteristic when high side active
Figure 3: Free-wheeling characteristic
iC-DXC
DIGITAL SENSOR I/O DRIVER
Rev A0.8, Page 8/11
OPERATING MODES
..30V
VB
VB
The iC-DXC can be operated in high-side (PNP), low-
side (NPN) and push-pull (PP) switch mode. Figure 4
shows the high-side operation where NIN pin must be
kept low and the OE pin controls the switch. Figure 5
shows the low-side operation where NIN pin must be
kept high and the OE pin controls the switch. Figure
6 shows the push-pull operation where OE pin must
be kept high and the NIN pin controls the switch. If
the OUT signal differs from what declared in tables 4,
5 and 6 (due to external forcing) for more than 14 µs
(cf. Electrical Characteristics No. 510), this event will
be signalled by a low level at MON output. In case of
a short circuit at OUT and resulting temperature shut-
down, logic level of MON will be undefined.
CVB
1μF
REG
5V
VREF
High Side Switch
+
-
<150
C
R LOAD
VOUT
36V
CVOUT
100nF..
OUT
DIGITAL INPUT
OUT
OE
CHEN
&
&
36V
NIN
VOUT
GND
GND
iC-DXC
Low Side Switch
VOUT
MON
CFO
VRH
VRL
FILT
=1
++
-
+
Figure 5: Configuration as Low-Side (NPN-Switch)
Output Table. Low-side mode (NPN-Switch)
OE NIN OUT CFO
Mode
L
H
H
H
Z (H)
L
L
H
Low-Side, passive pull up
Low-Side, active pull down
..30V
VB
VB
CVB
REG
5V
VREF
High Side Switch
1μF
+
-
<150
C
Table 5: Output Function table Fig. 5. Low-side mode
(NPN-Switch) with external pull-up.
VOUT
36V
CVOUT
100nF..
OUT
DIGITAL INPUT
OUT
OE
CHEN
&
&
..30V
VB
VB
36V
CVB
1μF
R LOAD
REG
5V
VREF
High Side Switch
NIN
+
-
VOUT
<150
C
GND
GND
VOUT
iC-DXC
Low Side Switch
VOUT
36V
CVOUT
100nF..
MON
CFO
OUT
DIGITAL INPUT
VRH
VRL
FILT
=1
++
OE
-
&
&
+
36V
GND
NIN
CHEN
VOUT
GND
GND
iC-DXC
Low Side Switch
VOUT
Figure 4: Configuration as High-Side (PNP-Switch)
MON
CFO
VRH
VRL
FILT
=1
++
-
+
Figure 6: Configuration as Pushpull
Output Table. High-side mode (PNP-Switch)
Output Table. Push-Pull mode
OE NIN OUT CFO
Mode
OE NIN OUT CFO
Mode
L
H
L
L
Z (L)
H
H
L
High-Side, passive pull down
High-Side, active pull up
H
H
H
L
L
H
H
L
Push-Pull, active pull down
Push-Pull, active pull up
Table 4: Output Function table Fig. 4. High-side mode
(PNP-Switch) with external pull-down.
Table 6: Output Function table Fig. 6. Push-Pull mode
iC-DXC
DIGITAL SENSOR I/O DRIVER
Rev A0.8, Page 9/11
CIRCUIT PROTECTION
The iC-DXC is reverse polarity protected via internal slow, and injected charge through disturbances may
circuitry. As far as the maximum voltage ratings are in general result in capacitor voltage exceeding maxi-
not exceeded, no possible supply combination at the mum ratings, leading to malfunction or destruction of
line side pins (VB, GND and OUT) can damage the circuitry and associated parts. Thus EMC require-
chip.
ments will afford more external circuitry. Figure 7
shows the iC-DXC with the additional protective device
Since the chip current consumption is relatively low, D1, D2 and D3.
discharging of the backup capacitor C1 can be very
8
VB
7
C1
REG
5V
VREF
1μF
High Side Switch
+
<150
C
-
8
1
VOUT
36V
C3
100nF..
OUT
7
6
DIGITAL INPUT
C2
1nF
OE
3
2
5
4
&
&
PSD36
D2
PSD36
D3
36V
NIN
D1
PSD36
GND
3
1
iC-DXC
Low Side Switch
MON
CFO
5
4
2
6
VRH
VRL
FILT
=1
++
-
+
EPAD
Figure 7: Circuit schematic showing protective devices
For over-voltage protection, the suppressor diodes the backup capacitor C1 should be kept small. A typi-
D1,D2 and D3 absorbs transients on supply line in- cal 100nF value is normally OK.
jected externally on the cable. Clamp voltage of the
diodes should be rated slightly above maximum speci-
fied supply voltage.
These currents can be passed to ground or to VB Suggested protective devices
by the internal ESD diodes of the iC-DXC. Whereas At VBmax of 36V, suppressor diodes with a breakdown
negative current injection will simply be drained off to voltage from 36V has to be chosen in order to minimize
ground, positive current injection will charge capacitor the energy in iC-DXC for higher Voltages. For example
C1 further to higher voltages. If not suppressor diodes Diode type like Vishay GSOT36C or PJSD36W from
nor any other over-voltage protection is implemented, Panjit should be enough as protection.
iC-DXC
DIGITAL SENSOR I/O DRIVER
Rev A0.8, Page 10/11
TIMING DESCRIPTION
..30V
VB
The iC-DXC has a built-in spurious pulse suppression
that prevents short (undesired) pulses at the input pins
from reaching the output. Every pulse at OE or NIN
pins shorter than 1.6 µs (cf. Electrical Characteristics
No. 306) will be ignored and the output will not re-
act. The minimum required pulse length to be sure
that the output reacts is 4 µs (cf. Electrical Characteris-
tics No. 307). That means that every pulse longer than
4 µs will be propagated to the output but with an addi-
tional propagation delay of 1.2 µs maximum. The re-
sulting maximum propagation delay is 5.2 µs (cf. Elec-
trical Characteristics No. 305).
VB
CVB
1μF
REG
5V
VREF
High Side Switch
+
-
<150
C
NEP
36V
VOUT
CVOUT
100nF..
OUT
DIGITAL INPUT
OE
&
&
36V
EN
NIN
GND
GND
iC-DXC
Low Side Switch
MON
CFO
VRH
VRL
FILT
=1
++
-
+
tpio
short-circuit
tdre
ttrig()
tpcf
Figure 9: Block diagram with EN and NEP internal
signals
NIN
EN
NEP
OUT
CFO
MON
Figure 8: Timing diagram in push-pull operation
mode with OE high
iC-Haus expressly reserves the right to change its products and/or specifications. An info letter gives details as to any amendments and additions made to the
relevant current specifications on our internet website www.ichaus.de/infoletter; this letter is generated automatically and shall be sent to registered users by
email.
Copying – even as an excerpt – is only permitted with iC-Haus’ approval in writing and precise reference to source.
iC-Haus does not warrant the accuracy, completeness or timeliness of the specification and does not assume liability for any errors or omissions in these
materials.
The data specified is intended solely for the purpose of product description. No representations or warranties, either express or implied, of merchantability, fitness
for a particular purpose or of any other nature are made hereunder with respect to information/specification or the products to which information refers and no
guarantee with respect to compliance to the intended use is given. In particular, this also applies to the stated possible applications or areas of applications of
the product.
iC-Haus conveys no patent, copyright, mask work right or other trade mark right to this product. iC-Haus assumes no liability for any patent and/or other trade
mark rights of a third party resulting from processing or handling of the product and/or any other use of the product.
As a general rule our developments, IPs, principle circuitry and range of Integrated Circuits are suitable and specifically designed for appropriate use in technical
applications, such as in devices, systems and any kind of technical equipment, in so far as they do not infringe existing patent rights. In principle the range of
use is limitless in a technical sense and refers to the products listed in the inventory of goods compiled for the 2008 and following export trade statistics issued
annually by the Bureau of Statistics in Wiesbaden, for example, or to any product in the product catalogue published for the 2007 and following exhibitions in
Hanover (Hannover-Messe).
We understand suitable application of our published designs to be state-of-the-art technology which can no longer be classed as inventive under the stipulations
of patent law. Our explicit application notes are to be treated only as mere examples of the many possible and extremely advantageous uses our products can
be put to.
iC-DXC
DIGITAL SENSOR I/O DRIVER
Rev A0.8, Page 11/11
ORDERING INFORMATION
Type
Package
Order Designation
iC-DXC DFN8 3x3
iC-DXC
DFN8 3x3 mm
For technical support, information about prices and terms of delivery please contact:
iC-Haus GmbH
Tel.: +49 (61 35) 92 92-0
Am Kuemmerling 18
D-55294 Bodenheim
GERMANY
Fax: +49 (61 35) 92 92-192
Web: http://www.ichaus.com
E-Mail: sales@ichaus.com
Appointed local distributors: http://www.ichaus.com/sales_partners
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