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IC-DX
preliminary
Rev A2, Page 1/9
UNIVERSAL DIGITAL SENSOR OUTPUT DRIVER
FEATURES o o o o o o o o o Configurable high-side, low-side and push-pull operation Current limited output (< 450 mA) Reverse polarity protection 150 mA output current 5 s input filter for spike supression 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, 10 mA
APPLICATIONS o Digital sensors o Light barriers o Proximity switches
PACKAGES
DFN6 2x2mm
BLOCK DIAGRAM
VB
..30V
VB
REG
VREF
High Side Sw.
+
VOUT
CVB 1F
5V <150 C NEP 36V OUT
-
CVOUT 100nF..
DIGITAL INPUT OE
&
36V
IN
&
EN
IC-DX
GND Low Side Switch
GND
Copyright (c) 2010 iC-Haus
http://www.ichaus.com
IC-DX
preliminary
Rev A2, Page 2/9
UNIVERSAL DIGITAL SENSOR OUTPUT DRIVER
DESCRIPTION The IC-DX is a monolithic switch capable of driving ohmic, inductive and capacitive loads and features integrated reverse polarity protection. The supply voltage VB of the device can range from 8 to 30 V. Output source/sink-current is at least 150 mA, with saturation voltages of typically 2 V. With input OE on high level state, the output works as a push-pull stage under control of pin IN. If pin IN is set either to high or low level, the output acts as a high-side (PNP) or low-side (NPN) driver which is activated by a high logic level on input OE. Output transitions are slew-rate limited to minimize interference on lines. The output is current limited to 450 mA maximum and short circuit protected by shutting down the device with excessive temperature. A regulated 5 V supply which can be loaded up to 10 mA is available at pin VOUT.
PACKAGES DFN6 2x2 PIN CONFIGURATION PIN FUNCTIONS No. Name Function 1 2 3 4 5 6 VOUT GND IN OE OUT VB Regulated +5 V Voltage Ground Input Output Enabled Driver Output Supply Voltage
1 2 3
6 5 4
dra_dfn6-1_pack_3, 20:1
The Thermal Pad is to be connected to a Ground Plane (GND) on the PCB. Only pin 1 marking on top or bottom defines the package orientation (top label and coding is subject to change).
IC-DX
preliminary
Rev A2, Page 3/9
UNIVERSAL DIGITAL SENSOR OUTPUT DRIVER
PACKAGE DIMENSIONS DFN6 2x2
RECOMMENDED PCB-FOOTPRINT
1.40
17 R0. 5
SIDE
0.90 0.80 0.65 0.35 1.95
TOP
2
BOTTOM
1.40
0.65
0.25
dra_dfn6-1_pack_5, 20:1
All dimensions given in mm.
0.35
0.80
2
0.65
IC-DX
preliminary
Rev A2, Page 4/9
UNIVERSAL DIGITAL SENSOR OUTPUT DRIVER
ABSOLUTE MAXIMUM RATINGS
Beyond these values damage may occur; device operation is not guaranteed. Item No. Symbol Parameter Supply Voltage Voltage at IN, OE Junction Temperature Storage Temperature ESD Susceptibility HBM, 100 pF discharged through 1.5 k Conditions Min. -36 -0.3 -40 -40 2 Max. 36 7 150 150 V V C C kV Unit
G001 VB G002 V() G003 Tj G004 Ts G005 Vd()
THERMAL DATA
Operating Conditions: VB = 8..30 V Item No. T01 Symbol Ta Parameter Conditions Min. Operating Ambient Temperature Range no thermal shutdown -40 Typ. Max. +150 C Unit
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-DX
preliminary
Rev A2, Page 5/9
UNIVERSAL DIGITAL SENSOR OUTPUT DRIVER
ELECTRICAL CHARACTERISTICS
Operating Conditions: VB = 8..30 V, Tj = -40..150C, unless otherwise stated Item No. 001 002 003 Symbol Parameter Conditions Min. Vc()lo VB I(VB) Clamp Voltage lo at IN, OE, VOUT Permissible Supply Voltage Supply Current in VB I() = 1 mA Referenced to GND no load, IN = lo, OE = lo IN = lo, OE = hi IN = hi, OE = hi increasing VB V(VB) = 0; V(OUT) = 0; V(GND)= 0...30 V V(VB)=0;V(GND)=0; V(OUT)= 0...30 V V(OUT) =0 ; GND open; ; V(VB)= 0...30 V 6 8 24 Typ. Max. 1V 30 0.9 1.2 1.5 8 300 300 300 V mA mA mA V uA uA uA Unit
General
004 005 006 007
V(VB)on
Turn-on threshold
Ilk(GND)rp Reverse Polarity Leakage Current Ilk(OUT)rp Reverse Polarity Leakage Current Ilk(VB)rp Reverse Polarity Leakage Current
Output characteristics 101 Vs(IOUT)lo Saturation voltage Low-Side driver 102 Vs(IOUT)hi Saturation voltage High-Side driver Isc()lo Isc()hi llk() Short-Circuit Current lo in OUT Short-Circuit Current Hi in OUT Leakage Current at OUT
IN = lo, OE = hi I(OUT) = 100 mA I(OUT) = 150 mA IN = hi, OE = hi I(OUT) = -100 mA I(OUT) = -150 mA V(OUT) = 3 V...VB V() = 0...VB - 3 V OUTPUT Disabled V(OUT) = -6...0 V V(OUT) = 0 V...VB V(OUT) > VB...30 V VB = 30 V, Cl = 2.2 nF, I(OUT) = 0 I(OUT) = -1 mA, with reference to VB I(OUT) = 1 mA, with reference to GND increasing Tj -47 36 -1.5 -2 150 -450 -100 -40 0
1.5 2
V V V V
103 104 105
450 -150 0 40 100 40 -36 47
mA mA A A A V/s V V
106 107 108
SR()
Slew Rate (switch off on, switch on off )
Vfw(OUT)lo Freewheeling Voltage Vfw(OUT)hi Freewheeling Voltage
Temperature monitor 201 301 302 303 304 305 306 307 Toff Vt()hi Vt()lo Vt()hys Ipd() tpio tsup() ttrig() Overtemperature shutdown Input Threshold Voltage hi at IN, OE Input Threshold Voltage lo at IN, OE Hysteresis at IN, OE Pull-Down Current at IN, OE Propagation Delay IN, OE OUT Permissible Spurious Pulse Width at IN, OE Required Pulse Width at IN, OE VB = 9..30 V, I(VOUT) = 10 .. 0 mA VB = 8..9 V, I(VOUT) = 10 .. 0 mA I(VOUT) = 0 I(VOUT) > 0 VOUT connected to GND 4 4.7 4.5 0 0.1 5.3 5.3 10 10 -125 Vt()hys = Vt()hi - Vt()lo V() > 0.4 V 0.8 200 2 2.1 150 6.5 1.6 150 185 2 C V V mV A s s s V V F F mA Inputs OE, IN
Series regulator output VOUT 401 V(VOUT) Regulated output voltage 402 403 C(VOUT) Capacitor at VOUT
Isc(VOUT) Short circuit current at VOUT
IC-DX
preliminary
Rev A2, Page 6/9
UNIVERSAL DIGITAL SENSOR OUTPUT DRIVER
DESCRIPTION OF FUNCTIONS IC-DX is a current limited switching channel which enables digital sensors to drive peripheral elements. They are designed to cope with high driver currents. The switches are reverse-polarity protected, feature a free-wheeling circuit for inductive loads, and a current limited output. Reverse polarity protection The pins VB, OUT an GND on the line side of the chip are reverse polarity protected. As far as the maximum voltage ratings are not exceeded, no possible supply combination at the line side pins can damage the chip.
I(OUT)
Output characteristics of OUT The switching channel is current limited to a value between 150mA and 450mA. (cf. Electrical Characteristics Nos. 103, 104). The current limitation works only for voltages higher than 3 V at OUT resp. lower than VBO - 3 V. For smaller output voltages the current limitation is reduced in order to minimise the saturation voltages without increasing the power dissipation. Figures 1 and 2 show the characteristic of the switching channels when activated. Region "A" is the saturation range, where the current limitation is not fully active yet and region "B" is the current limited range. Region "C" corresponds to the free-wheeling circuit activated. The switching channel is designed so that the low side can only sink current and high side can only source current (no reverse current). Free-wheeling circuit for inductive loads The free-wheeling circuit is always present and does not depend on the current output status. It is activated 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).
I(OUT) 36V
Isc()lo GND 3V A B 36V VB C V(OUT)
Figure 1: OUT characteristic when Low side active
I(OUT) VB-36V C Isc()hi 36V GND B A VB V(OUT)
VB-36V GND VB GND+36V
V(OUT)
36V
Figure 2: OUT characteristic when high side active
Figure 3: Free-wheeling characteristic
OPERATION MODES The IC-DX can be operated in high-side, low-side and push-pull switch mode. Figure 4 shows the high-side operation where IN pin must be kept high and the OE pin controls the switch. Figure 5 shows the low-side operation where IN pin must be kept low and the OE pin controls the switch. Figure 6 shows the push-pull operation where OE pin must be kept high and the IN pin controls the switch.
VB
..30V
VB
REG
VREF
High Side Sw.
+
VOUT
CVB 1F
5V <150 C
-
CVOUT 100nF..
DIGITAL INPUT OE
36V OUT
OE
&
36V
GND
IN
&
IC-DX
GND Low Side Switch
GND
Figure 4: Configuration as high side
IC-DX
preliminary
Rev A2, Page 7/9
VB
UNIVERSAL DIGITAL SENSOR OUTPUT DRIVER
..30V
VB
REG VREF High Side Sw.
VB
..30V
VB
REG
VREF
High Side Sw.
+
VOUT
CVB 1F
5V <150 C
VOUT
+
CVB 1F
5V <150 C
-
-
CVOUT 100nF..
DIGITAL INPUT OE
36V OUT
CVOUT 100nF..
DIGITAL INPUT OE
36V OUT
OE
&
36V
&
36V
GND
IN
&
IN
GND Low Side Switch
IN
&
IC-DX
GND
GND
IC-DX
GND Low Side Switch
GND
Figure 5: Configuration as low side
Figure 6: Configuration as Pushpull
TIMING DESCRIPTION The IC-DX 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 IN pins shorter than 1.6 s (cf. Electrical Characteristics No. 306) will be ignored and the output will not react. The minimum required pulse length to be sure that the output reacts is 4 s (cf. Electrical Characteristics No. 307). That means that every pulse longer than 4 s will be propagated to the output but with an additional propagation delay of 1.2 s maximum. The resulting maximum propagation delay is 5.2 s (cf. Electrical Characteristics No. 305).
tpio ttrig()
VB
..30V
VB
REG
VREF
High Side Sw.
+
VOUT
CVB 1F
5V <150 C NEP 36V OUT
-
CVOUT 100nF..
DIGITAL INPUT OE
&
36V
IN
&
EN
IC-DX
GND Low Side Switch
GND
Figure 8: Block diagram with EN and NEP internal signals
IN
EN NEP OUT
Figure 7: Timing diagram in push-pull operation mode
IC-DX
preliminary
Rev A2, Page 8/9
UNIVERSAL DIGITAL SENSOR OUTPUT DRIVER
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-DX
preliminary
Rev A2, Page 9/9
UNIVERSAL DIGITAL SENSOR OUTPUT DRIVER
ORDERING INFORMATION
Type IC-DX
Package DFN6
Order Designation IC-DX DFN6
For technical support, information about prices and terms of delivery please contact: iC-Haus GmbH Am Kuemmerling 18 D-55294 Bodenheim GERMANY Tel.: +49 (61 35) 92 92-0 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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