ZSSC3154

Technical Note
Rev. 1.00 / October 2013
ZSSC3154
Automotive SSC with Dual Analog Output
Power Management Description
Automotive ICs
Adaptable and Rugged
ZSSC3154 – Automotive SSC
Technical Note – Power Management Description
Contents
1 Introduction ....................................................................................................................................................... 3
2 Protection Functions ......................................................................................................................................... 3
3 Values and Purpose of the External Components ........................................................................................... 4
4 Behavior when Supply Voltage < VDDEMIN ...................................................................................................... 5
5 Behavior at Nominal Supply Voltage ................................................................................................................ 5
6 Behavior during Short Circuit or Overvoltage (Maximum: 7.7V) ...................................................................... 6
7 Behavior for Open or Short Circuit Conditions (VDDE - VSSE = 4.5V to 5.5V) .............................................. 8
8 Overvoltage Protection ................................................................................................................................... 11
9 Output Current Limitation for PIN AOUT1 and AOUT2 .................................................................................. 11
10 Supply Voltage Behavior (without Time Limits).............................................................................................. 11
11 EMC Specification .......................................................................................................................................... 12
11.1. Behavior during Applications of Test Pulses ........................................................................................... 12
11.2. Strength against Test Pulses (DIN 40839 Part1) .................................................................................... 13
11.3. Electromagnetic Emission ....................................................................................................................... 13
12 Related Documents ........................................................................................................................................ 14
13 Glossary ......................................................................................................................................................... 14
14 Document Revision History ............................................................................................................................ 14
List of Figures
Figure 2.1
Figure 2.2
Figure 6.1
Figure 7.1:
Figure 10.1
Application Circuit with Two Analog Outputs and Diagnostic Fault Band Level Low ......................... 3
Application Circuit with Two Analog Outputs and Diagnostic Fault Band Level High ........................ 3
Short or Overvoltage Conditions......................................................................................................... 6
Lost Connection (Open) or Short Conditions (VDDE – VSSE = 4.5V to 5.5V) .................................. 8
Behavior over Full Supply Voltage Range ........................................................................................ 12
List of Tables
Table 3.1
Table 4.1
Table 5.1
Table 6.1
Table 7.1
Table 10.1
Table 11.1
External Components for Protection ................................................................................................... 4
Behavior when Supply Voltage < VDDEMIN ........................................................................................ 5
Behavior when 4.5V  (VDDE-VSSE)  5.5V ..................................................................................... 5
Short Circuit or Overvoltage Conditions (Maximum: 7.7V) ................................................................. 7
Effects of Lost Connections (Open) and/or Short Conditions (VDDE - VSSE = 4.5V to 5.5V) .......... 9
Supply Voltage Behavior .................................................................................................................. 11
Test Pulses 3a, 3b Severity IV according to DIN 40839 Part 1, Capacitive Coupling AOUT1 or
AOUT2 Pin ........................................................................................................................................ 13
For more information, contact ZMDI via [email protected].
Technical Note
October 21, 2013
© 2013 Zentrum Mikroelektronik Dresden AG — Rev.1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
2 of 14
ZSSC3154 – Automotive SSC
Technical Note – Power Management Description
1
Introduction
This technical note defines the operation of the ZSSC3154 under varying supply voltage and load conditions. If
not stated otherwise, the specified parameters and behavior are valid for the full specified temperature range.
2
Protection Functions
The ZSSC3154 provides short-pin protection, lost-pin detection, and over-voltage protection for the external
connections in the application circuit: VCC (VDDE pin), AOUT1, AOUT2, and GND (VSSE pin). The components
and configuration of the basic application circuit shown Figure 2.1 or Figure 2.2 (also given in section 3 of the
ZSSC3154 Data Sheet) are required in order to guarantee these protection parameters.
Figure 2.1
Application Circuit with Two Analog Outputs and Diagnostic Fault Band Level Low
Temp. Sensor2
DFBH
VDDA
VTN2
VSSA
VTN1
SDA
C1
100nF
VBR_T
VBP
ZSSC3154
Temp. Sensor1
VDD
VDDE
AOUT1
VBR_B
AOUT2
VBN
VSSE
Sensor Bridge
Figure 2.2
SCL
C2
100nF
C3
C4
15nF 15nF
VCC
AOUT1
AOUT2
GND
Application Circuit with Two Analog Outputs and Diagnostic Fault Band Level High
Temp. Sensor2
DFBH
VDDA
VTN2
VSSA
VTN1
SDA
C1
100nF
VBR_T
VBP
VBR_B
VBN
Sensor Bridge
Technical Note
October 21, 2013
ZSSC3154
Temp. Sensor1
SCL
VDD
VDDE
AOUT1
AOUT2
VSSE
C2
100nF
C3
C4
15nF 15nF
VCC
AOUT1
AOUT2
GND
© 2013 Zentrum Mikroelektronik Dresden AG — Rev.1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
3 of 14
ZSSC3154 – Automotive SSC
Technical Note – Power Management Description
3
Values and Purpose of the External Components
Table 3.1 gives the typical values, ratings, and purpose for the required external components shown in Figure 2.1
and Figure 2.2. The purpose for C1, C2, C3, and C4 is to reduce the positive and negative voltage spikes and
reduce the RF emission.
Note: The capacitor values are must be adapted to the requirements of the specific application, in particular to the
EMC requirements.
VN is the manufacturer’s maximum voltage rating for the capacitor.
Table 3.1
External Components for Protection
Component
SYMBOL
Parameter
3.1.
Capacitor (VDDA to VSSA)
C1
Typical 100nF, VN  10V
3.2.
Capacitor (VDDE to VSSE)
C2
Typical 100nF, VN  16V
Capacitor (AOUT1 to VSSE)
1, 2
C3
Typical 15nF, VN  16V
Capacitor (AOUT2 to VSSE)
2, 3
C4
Typical 15nF, VN  16V
3.3.
3.4.
1. C3 is the sum of the load capacitance and the cable capacitance; refer to the ZSSC3154 Data Sheet for additional requirements.
2. Requirements for external capacitance on these pins are not tested in mass production but are guaranteed by design and/or quality
monitoring.
3. C4 is the sum of the load capacitance and the cable capacitance; refer to the ZSSC3154 Data Sheet for additional requirements.
Technical Note
October 21, 2013
© 2013 Zentrum Mikroelektronik Dresden AG — Rev.1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
4 of 14
ZSSC3154 – Automotive SSC
Technical Note – Power Management Description
4
Behavior when Supply Voltage < VDDEMIN
Table 4.1
Behavior when Supply Voltage < VDDEMIN
Condition
Behavior
ZSSC3154 Function
VDDE=VCC, VSSE=GND
4.1.
V_VSSE = 0V, 0V < V_VDDE < 1.5V
V_AOUT1 = 0 to V_VDDE
V_AOUT2 = 0 to V_VDDE
4.2.
V_VSSE = 0V, 1.5V  V_VDDE < Vswitch_on
1
V_AOUT1 = 0 to V_VDDE
V_AOUT2 = 0 to V_VDDE
4.3.
V_VSSE = 0V
V_AOUT1 = 0 to V_VDDE
V_AOUT2 = 0 to V_VDDE
1
Vswitch_on < V_VDDE < 4.5V
Output not specified.
Not specified.
AOUT1 and AOUT2
switches to high
2
impedance state.
ZSSC3154 is in the reset condition.
Internal current and
voltage limitation.
ZSSC3154 is in the Normal
Operation Mode (NOM); parameters
are not guaranteed.
1. Vswitch_on depends on the Power-On-Reset (POR) level voltage:
Internal POR_off threshold = 3.3 V to 4.1 V (VDDA -> VSSA), internal POR_on threshold = 3.0 V to 3.8 V (VDDA -> VSSA)
Hysteresis POR_off - POR_on = 300mV (minimum), delay POR_off = 0.4ms to 2.5ms, delay POR_on = 0.2ms to 1.2ms.
2. High impedance state: -40µA
 IOUTLEAKAGE  +40µA; IOUTLEAKAGE_typ = 13µA (at 25°C), where IOUTLEAKAGE is the leakage current of the
AOUT1 and AOUT2 pins.
5
Behavior at Nominal Supply Voltage
Table 5.1
Behavior when 4.5V  (VDDE-VSSE)  5.5V
Condition
Behavior
ZSSC3154 Mode
VDDE=VCC, VSSE=GND
5.1.
V_VSSE = 0V
V_AOUT1 = 0 to V_VDDE
V_AOUT2 = 0 to V_VDDE
Internal current and
voltage limitation.
Normal Operation Mode (NOM);
parameters are guaranteed.
Internal current and
voltage limitation.
Internal EEPROM programming is
possible when ZSSC3154 functions in
Command Mode. The AOUT1 pin is
used as the one-wire interface (OWI)
pin.
4.5V  (VDDE-VSSE)  5.5V
5.2.
V_VSSE = 0V
V_AOUT1 = 0 to V_VDDE
V_AOUT2 = 0 to V_VDDE
V_VDDE = 4.5V to 5.5V
Technical Note
October 21, 2013
© 2013 Zentrum Mikroelektronik Dresden AG — Rev.1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
5 of 14
ZSSC3154 – Automotive SSC
Technical Note – Power Management Description
6
Behavior during Short Circuit or Overvoltage (Maximum: 7.7V)
Figure 6.1 illustrates the possible short or overvoltage conditions using the following switches to represent the
fault condition possibilities: swvcc, swaout1, swaout2, and swgnd. Possible fault conditions represented are a
direct short high to Vsupp (4.5V to 5.5V), a connection to Vsupp through a resistance Ry, a direct short to ground,
a connection to ground through a resistance Rx, and an overvoltage condition of >5.5V up to 7.7V maximum
(labeled 7.7V). See Table 6.1 for the effects of the various combinations of these conditions on the external
connection lines.
Figure 6.1
Short or Overvoltage Conditions
swvcc
Vsupp
5.5V to 7.7V max
0V
VCC
swaout1
VDDE
Vsupp
5.5V to 7.7V max
5.5V to 7.7V max
Vsupp
0V
0V
Ry
AOUT1
Ry
AOUT1
Rx
Vsupp
5.5V to 7.7V max
5.5V to 7.7V max
Vsupp
0V
0V
AOUT2
AOUT2
Ry
Ry
VSSE
Rx
swaout2
swgnd
0V
GND
Note: Vsupp = 4.5V to 5.5V
AOUT1 high impedance state: 40µA  IAOUT1_LEAKAGE  +40µA, IAOUT1_LEAKAGE_typ = 13µA (at 25°C)
AOUT2 high impedance state: 40µA  IAOUT2_LEAKAGE  +40µA, IAOUT2_LEAKAGE_typ = 13µA (at 25°C)
Technical Note
October 21, 2013
© 2013 Zentrum Mikroelektronik Dresden AG — Rev.1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
6 of 14
ZSSC3154 – Automotive SSC
Technical Note – Power Management Description
Table 6.1
Short Circuit or Overvoltage Conditions (Maximum: 7.7V)
An asterisk (*) indicates a current assumption at AOUT1 or AOUT2 of 25mA (max.).
Condition
VDDE=VCC, VSSE=GND, swgnd = 0V
swvcc
6.1.
+5.5 to +7.7V
6.2.
ZSSC3154
ZSSC3154 Behavior
Function
swaout1 or swaout2
Internal current and voltage limitation.
IC active  output
signal in extended
tolerance range *
+5.5 to +7.7V
+5.5 to +7.7V
(VDDE=AOUT1) (VDDE=AOUT1)
Internal current and voltage limitation.
No output signal on
AOUT 1 and AOUT2
6.3.
+5.5 to +7.7V
+5.5 to +7.7V
(VDDE=AOUT2) (VDDE=AOUT2)
Internal current and voltage limitation.
No output signal on
AOUT 1 and AOUT2
6.4.
+5.5 to +7.7V
RyVsupp
Internal current and voltage limitation.
IC active  output
signal in extended
tolerance range *
6.5.
+5.5 to +7.7V
Vsupp
Internal current and voltage limitation.
No output signal on
AOUT 1 and AOUT2
6.6.
Vsupp
Ry
5.5 to +7.7V
Internal current and voltage limitation.
IC active  output
signal in extended
tolerance range *
6.7.
Vsupp
+5.5 to +7.7V
Internal current and voltage limitation.
No output signal on
AOUT 1 and AOUT2*
6.8.
+5.5 to +7.7V
Rx0V
Internal current and voltage limitation.
IC active  output
signal in extended
tolerance range *
6.9.
+5.5 to +7.7V
0V
Internal current and voltage limitation.
No output signal on
AOUT 1 and AOUT2*
Technical Note
October 21, 2013
Ry 
+5.5 to +7.7V
© 2013 Zentrum Mikroelektronik Dresden AG — Rev.1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
7 of 14
ZSSC3154 – Automotive SSC
Technical Note – Power Management Description
7
Behavior for Open or Short Circuit Conditions (VDDE - VSSE = 4.5V to 5.5V)
Figure 7.1 illustrates the possible open or short conditions when the supply is within specifications. It uses the
following switches to represent the fault condition possibilities: swvcc, swaout1, swaout2, and swgnd. Possible
fault conditions represented in this case are an open on the supply to VDDE, an open on the connection to
AOUT1 or AOUT2, an open on the GND connection to VSSE, a direct short to Vsupp (4.5V to 5.5V) on AOUT1 or
AOUT2, a short to Vsupp through a resistance Ry on AOUT1 or AOUT2, a direct short to ground on AOUT1 or
AOUT2, or a short to ground through a resistance Rx on AOUT1 or AOUT2. See Table 7.1 for the effects of the
various combinations of these conditions on the external connection lines.
Figure 7.1:
Lost Connection (Open) or Short Conditions (VDDE – VSSE = 4.5V to 5.5V)
VCC
swvcc
Vsupp
Loss of VCC
swaout1
VDDE
AOUT1
Ry
AOUT1
Rx
Loss of AOUT1
Loss of AOUT2
Ry
AOUT2
Rx
VSSE
AOUT2
Vsupp
Vsupp
0V
0V
Vsupp
Vsupp
0V
0V
swaout2
Loss of GND
swgnd
0V
GND
Note: Vsupp = 5.5V max.
AOUT1 high impedance state: -40µA  IAOUT1_LEAKAGE  +40µA, IAOUT1_LEAKAGE_typ = 13µA (at 25°C)
AOUT2 high impedance state: -40µA  IAOUT2_LEAKAGE  +40µA, IAOUT2_LEAKAGE_typ = 13µA (at 25°C)
Technical Note
October 21, 2013
© 2013 Zentrum Mikroelektronik Dresden AG — Rev.1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
8 of 14
ZSSC3154 – Automotive SSC
Technical Note – Power Management Description
Table 7.1
Effects of Lost Connections (Open) and/or Short Conditions (VDDE - VSSE = 4.5V to 5.5V)
Condition
VDDE=VCC, VSSE=GND, swgnd=0V, swvcc=Vsupp
Loss of
or Shorted
swaout1
VCC
Rx0V
Rx0V
RyVsupp
7.2.
AOUT1
Rx0V
Rx0V
Rx0V
Rx0V
RyVsupp
Not used
7.5.
VCC
RyVsupp
Rx0V
RyVsupp
7.6.
AOUT1
RyVsupp
RyVsupp
RyVsupp
Rx0V
RyVsupp
Technical Note
October 21, 2013
AOUT1 and AOUT2 signal
in DFB.
AOUT1 and AOUT2
switch are high
impedance.
AOUT1 signal in DFB.
AOUT1 switch is high
impedance.
AOUT1 and AOUT2 signal
in DFB.
AOUT1 and AOUT2
switch are high
impedance.
No AOUT1 signal; AOUT2
signal in normal range.
Not used
GND
AOUT1 switch is high
impedance.
Rx0V
RyVsupp
7.8.
AOUT1 signal in DFB.
No AOUT1 signal.
Rx0V
AOUT2
AOUT1 signal in normal
range; no AOUT2 signal.
Not used
RyVsupp
7.7.
AOUT1 and AOUT2
switch are high
impedance.
No AOUT1 signal; AOUT2
signal in normal range.
Not used
GND
AOUT1 and AOUT2 signal
in DFB.
Rx0V
RyVsupp
7.4.
AOUT1 switch is high
impedance.
No AOUT1 signal.
Rx0V
AOUT2
AOUT1 signal in DFB
(diagnostic fault band).
Not used
RyVsupp
7.3.
Behavior
swaout2
Not used
7.1.
Function
AOUT1 signal in normal
range; no AOUT2 signal.
AOUT1 signal in DFB.
AOUT1 switch is high
impedance.
AOUT1 and AOUT2 signal
in DFB.
AOUT1 and AOUT2
switch are high
impedance.
© 2013 Zentrum Mikroelektronik Dresden AG — Rev.1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
9 of 14
ZSSC3154 – Automotive SSC
Technical Note – Power Management Description
Condition
VDDE=VCC, VSSE=GND, swgnd=0V, swvcc=Vsupp
Loss of
or Shorted
7.9.
AOUT1 VCC
swaout1
Rx0V
AOUT2 VCC
Not used
No AOUT1 signal.
Rx0V
No AOUT1 signal; AOUT2
signal in normal range.
Rx0V
Rx0V
RyVsupp
7.11.
AOUT1 GND
Rx0V
AOUT2 GND
No AOUT1 signal.
Rx0V
No AOUT1 signal; AOUT2
signal in normal range.
Rx0V
Rx0V
RyVsupp
7.13.
7.14.
VCC GND
AOUT1 VCC
Rx0V
RyVsupp
AOUT2 VCC
No AOUT1 signal.
Rx0V
No AOUT1 and no AOUT2
signal.
RyVsupp
No AOUT1 signal; AOUT2
signal in DFB.
Not used
No AOUT1 signal.
Rx0V
No AOUT1 signal; AOUT2
signal in normal range.
Rx0V
RyVsupp
RyVsupp
7.16.
AOUT1 GND
RyVsupp
AOUT2 GND
No AOUT1 signal.
Rx0V
No AOUT1 signal; AOUT2
signal in normal range.
Rx0V
RyVsupp
RyVsupp
7.18.
VCC GND
RyVsupp
October 21, 2013
AOUT1 signal in normal
range; no AOUT2 signal.
Not used
AOUT1 signal in DFB.
Rx0V
AOUT1 signal and AOUT2
signal in DFB.
RyVsupp
Technical Note
AOUT1 signal in normal
range; no AOUT2 signal.
Not used
RyVsupp
7.17.
AOUT1 signal in normal
range; no AOUT2 signal.
Not used
RyVsupp
7.15.
AOUT1 signal in normal
range; no AOUT2 signal.
Not used
RyVsupp
7.12.
Behavior
swaout2
RyVsupp
7.10.
Function
AOUT switches to high
impedance state.
© 2013 Zentrum Mikroelektronik Dresden AG — Rev.1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
10 of 14
ZSSC3154 – Automotive SSC
Technical Note – Power Management Description
8
Overvoltage Protection
The ZSSC3154 pins VDDE, VSSE, AOUT1 and AOUT2 are protected against overvoltage  7.7V. This is only
guaranteed if external components are used as shown in the application circuits.
9
Output Current Limitation for PIN AOUT1 and AOUT2
In the event of a short to the external supply pins VCC or GND, every output current is limited to 15mA (typical) at
pins AOUT1 and AOUT2. In the event of overvoltage at VDDE (VDDE>5.5V; 7.7V max), the current is limited to
less than 50mA.
10 Supply Voltage Behavior (without Time Limits)
Table 10.1
Supply Voltage Behavior
Voltage Range
1
Sensor Behavior
Limits (Typical Values)
10.1.
 0 to VR1
Not specified
VR1 < 1.5V
10.2.
 VR1 to VR2
Reset Mode; output in diagnostic range
VR2 = 3.7V
10.3.
 VR2 to Vmin
Normal Mode; extended tolerance range
Vmin = 4.5V
10.4.
 Vmin to Vtyp
Normal Mode according to specifications
Vtyp = 5V
10.5.
 Vtyp to Vmax
Normal Mode according to specifications
Vmax = 5.5V
10.6.
 Vmax to Vdest
Normal Mode; extended tolerance range
Vdest > 7.7V
10.7.
 Vdest to V∞
Destruction
Vdest > 7.7V
10.8.
 Vdest to Vmax
Normal Mode; extended tolerance range
Vdest >7.7V, Vmax = 5.5V
10.9.
 Vmax to Vtyp
Normal Mode according to specifications
Vtyp = 5V
10.10.
 Vtyp to Vmin
Normal Mode according to specifications
Vmin = 4.5V
10.11.
 Vmin to VR2H
Normal Mode; extended tolerance range
VR2H < VR2 – 0.3V
10.12.
 VR2H to VR1H
Reset Mode; output in diagnostic range
VR1H < VR1
1.
In this column, the symbol  indicates a rise in the supply voltage (voltage increases from Vx to Vy).
The symbol  indicates a downward slope for the supply voltage (voltage decreases from Vx to Vy).
Technical Note
October 21, 2013
© 2013 Zentrum Mikroelektronik Dresden AG — Rev.1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
11 of 14
ZSSC3154 – Automotive SSC
Technical Note – Power Management Description
Figure 10.1
Behavior over Full Supply Voltage Range
VDDE
Destruction
Vdest
Operation out of operation range
Vmax
Vtyp
Normal Mode according
to the specifications
Vmin
Operation out of operation range
VR2
VR2H
Hysteresis threshold
Reset Mode
Reset Mode
Output in diagnostic range
(AOUT switches to high impedance)
VR1
Hysteresis threshold
Reset Mode
VR1H
Not specified
0
11 EMC Specification
11.1. Behavior during Applications of Test Pulses
The required application circuit (see ZSSC3154_DataSheet_Rev_X_xx.pdf, section 3) prevents irreversible
damage to the ZSSC3154 during application of test pulses.
The integrated reset circuit with sufficient hysteresis prevents an out-of-specification switch between different
working modes. The functional mode of the pressure sensor (IC and application) is mainly determined by external
components.
The customer must verify the functions of the total system. If necessary, the customer must adjust the application
circuit and the dimensions of the external components respectively.
Negative voltage pulses at the supply line cause an interruption of the ZSSC3154 power supply that must be
compensated for with suitable steps.
Technical Note
October 21, 2013
© 2013 Zentrum Mikroelektronik Dresden AG — Rev.1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
12 of 14
ZSSC3154 – Automotive SSC
Technical Note – Power Management Description
11.2. Strength against Test Pulses (DIN 40839 Part1)
When testing the total system, the following parameters apply:

Functional State A:
The device fulfills the complete functionality according to the specification during and after the application
of test pulses.

Functional State B:
The device fulfills the complete functionality according to the specification during the application of test
pulses, but one or more functions might be out of the range of the operational tolerances. After the test
pulse application, all functions are fulfilled according to the specification again. Memory functions must
stay in the state A.
Table 11.1
Test Pulses 3a, 3b Severity IV according to DIN 40839 Part 1, Capacitive Coupling AOUT1 or AOUT2 Pin
TestPulse
PulseAmplitude
VS [V]
3a
3b
[]
td
[µs]
tr
[ns]
t1
[µs]
t4
[ms]
t5
[ms]
Functional
State of the
Device
Duration
-150
50
0.1
5
100
10
90
B
1h
+100
50
0.1
5
100
10
90
B
1h
Ri
11.3. Electromagnetic Emission
The wired emission of externally connected pins of the device is measured according to the following standard:
IEC 61967_4:2002 + A1:2006
Measurements must be performed with the application circuit described in the ZSSC3154 Data Sheet.
For the pins VDDE, AOUT1, and AOUT2, the spectral power measured with the 150Ω method must not exceed
the limits according to IEC code H10kN. For the VSSE pin, the spectral power measured with the 1Ω method
must not exceed the limits according to IEC code 15KmO.
Technical Note
October 21, 2013
© 2013 Zentrum Mikroelektronik Dresden AG — Rev.1.00
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the
prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
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ZSSC3154 – Automotive SSC
Technical Note – Power Management Description
12 Related Documents
Document
File Name
ZSSC3154 Data Sheet
ZSSC3154_DataSheet_Rev_X_xx.pdf
Visit ZMDI’s website www.zmdi.com or contact your nearest sales office for the latest version of these documents.
13 Glossary
Term
Description
AOUT
Analog Output
DFB
Diagnostic Fault Band
EMC
Electromagnetic Compatibility
IC
Integrated Circuit
POR
Power-on-Reset
SSC
Sensor Signal Conditioner
14 Document Revision History
Revision
Date
Description
1.00
October 21, 2013
First release.
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Technical Note
October 21, 2013
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