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PDF IFX21004TNV51 Data sheet ( Hoja de datos )
| Número de pieza | IFX21004TNV51 | |
| Descripción | Dual Voltage Regulator | |
| Fabricantes | Infineon | |
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IFX21004TN V51
Dual Voltage Regulator with 5 V and 15 V Outputs
IFX21004TN V51
Data Sheet
Rev. 1.00, 2010-11-04
Standard Power
1 page  
IFX21004TN V51
General Product Characteristics
4 General Product Characteristics
4.1 Absolute Maximum Ratings
Table 1 Absolute Maximum Ratings
Tj = -40 °C to +150 °C; all voltages with respect to ground, positive current flowing into pin (unless otherwise
specified)
Parameter
Symbol
Limit Values Unit
Remarks
Min.
Max.
Input
Voltage
VI
-0.3 60
V
during max. 400ms
see also Chapter 6
-0.3 40
V
Outputs Q1, Q2
Voltage
Voltage
Temperatures
VQ1
-0.3 6.5 V
–
VQ2 -0.3 20 V –
Junction Temperature
Storage Temperature
ESD-Protection
Tj
-40
150 °C
–
Tstg
-50
150 °C
–
All Pins
All Pins
VESD
-2
2
kV
VESD
-1
1
kV
1) ESD susceptibility, HBM according to EIA/JESD 22-A114B
2) ESD susceptibility, Charged Device Model “CDM” EIA/JESD22-C101 or ESDA STM5.3.1
HBM1)
CDM2)
Note: Stresses above the ones listed here may cause permanent damage to the device. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
Note: Integrated protection functions are designed to prevent IC destruction under fault conditions described in the
data sheet. Fault conditions are considered as “outside” normal operating range. Protection functions are
not designed for continuous repetitive operation.
4.2 Operating Range
Table 2 Operating Range
Parameter
Input Voltage Range for Q1
Symbol
VI1
Limit Values
Min.
Max.
12 60
Unit
V
Input Voltage Range for Q2
VI1 12 40 V
VI2 20 60 V
VI2 20 40 V
Junction temperature
Tj -40 150 °C
1) also consider the specification of the Dropout Voltage VDRQ1, VDRQ2 given in the Table 4
Remarks
only Q1 functional;
during max. 400ms1)
only Q1 functional1)
Q1 and Q2 functional;
during max. 400ms1)
Q1 and Q2 functional1)
–
Data Sheet
5 Rev. 1.00, 2010-11-04
5 Page 
IFX21004TN V51
Application Information
6 Application Information
Note: The following information is given as a hint for the implementation of the device only and shall not be
regarded as a description or warranty of a certain functionality, condition or quality of the device.
Batt.
20 V
:
40 V
60 V peak
I
100 nF
IFX21004
n.c. GND
Q1
5V
Q2
+ 22 µF + 22 µF
25 V 25 V
15 V
GND
Figure 3 Application Circuit
Note: This is a very simplified example of an application circuit. The function must be verified in the real application.
The IFX21004TN V51 is operating from 20 V < VI < 40 V (60 V Peak) and can be directly connected to e.g. a
battery line. The maximum output current of this regulator is controlled and limited internally; its output short circuit
protection to ground is ensured up to VI-values of up to 24V.
When any high frequency disturbance is existing and should be filtered, an input capacitor in the range of 100 nF
is helpful.
At both outputs Q1 and Q2 capacitors CQ1 and CQ2 are required in any case to maintain regulating stability.
Therefore as minimum values the specification in Table 4 “Electrical Characteristics” on Page 7 needs to be
respected. In addition, to keep a good line transient regulation1) and load transient regulation2), capacitor values
of CQ1 = CQ2 > 22 µF are recommended.
The IFX21004TN V51 is capable to withstand input voltages exceeding its nominal operating range up to values
of 60 V during short time periods of up to 400ms. Such short input voltage pulses exceeding 40 V are absorbed
by activating an internal zener diode structure. Please note in this context that, due to hysteresis, in some cases
the zener diode may remain activated also after the pulse when the input voltage is afterwards around values of
40V. If in such cases the input voltage is lowered afterwards the power zener will be switched off again. During
the switching of the zener diode the effects of potential switching noise needs to be considered as they may cause
transients on the outputs Q1 and Q2. The occurrence of such transient output voltages is dependent on the
application’s load as well as the used output capacitors. Such potential output transients can be minimized by
using larger values for CQ1 and CQ2 that will damp such output transients.
1) fast voltage transients at the regulator’s input
2) fast current transients at the regulator’s output
Data Sheet
11
Rev. 1.00, 2010-11-04
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet IFX21004TNV51.PDF ] | |
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