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| TLE9261-3QX Datasheet, PDF (69/186 Pages) Infineon Technologies AG – Dedicated Data Sheets are available for the different product variants | |||
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TLE9261-3QX
External Voltage Regulator 3
VS
C1
RSHUNT
T1
ICC3
VS
VCC3SH
VCC3B
VCC3REF
Vcc3
VCC13
C2
Vcc1
ICC1
Figure 25 VCC3 in Load Sharing Configuration
8.3
External Components
Characterization is performed with the BCP52-16 from Infineon (ICC3 < 200 mA) and with MJD253.
Other PNP transistors can be used. However, the functionality must be checked in the application.
Figure 25 shows one hardware set up used.
Table 20
Device
C2
RSHUNT
T1
Bill of Materials for the VCC3 Function with and without load sharing configuration
Vendor
Reference / Value
Murata
10 µF/10 V GCM31CR71A106K64L
-
1 ⦠(with / without LS)
Infineon
BCP52-16
Note: The SBC is not able to ensure a thermal protection of the external PNP transistor. The power handling
capabilities for the application must therefore be chosen according to the selected PNP device, the PCB
layout and properties of the application to prevent thermal damage, e.g. via the shunt current limitation in
stand alone configuration or by selecting the proper ICC1/ICC3 ratio in load-sharing configuration.
Note: To ensure an optimum EMC behavior of the VCC3 regulator when the VCC3 output is leaving the PCB, it is
necessary to optimize the PCB layout to have the PNP very close to the SBC. If this is not sufficient or
possible, an external capacitance should be placed to the off-board connector (see also Chapter 16.1).
Data Sheet
69
Rev. 1.1, 2014-09-26
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