TLE6368G2 Infineon Technologies, TLE6368G2 Datasheet - Page 54
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TLE6368G2
Manufacturer Part Number
TLE6368G2
Description
IC PS SYSTEM MULTI VOLT DSO36
Manufacturer
Infineon Technologies
Datasheet
1.TLE6368G2.pdf
(60 pages)
Specifications of TLE6368G2
Applications
Power Supply, Automotive Applications
Voltage - Input
5.5 ~ 60 V
Number Of Outputs
3
Voltage - Output
2.6V, 3.3V, 5V
Operating Temperature
-40°C ~ 150°C
Mounting Type
Surface Mount
Package / Case
DSO-36
Packages
PG-DSO-36
Comment
Vin up to 60V; 3 linear post regulators (5V, 3.3/2.6V, 5/3.3V) and 6 voltage trackers (5V); SPI
Vq (max)
5.0 V, 3.3/2.6 V, 3.3/2.6 V
Iq (max)
1,500.0 mA
Iq (typ)
30.0 µA
Output
Linear (Buck Preregulator)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TLE6368G2
Manufacturer:
INFINEON/英飞凌
Quantity:
20 000
5.2.5
The voltage at the Bootstrap capacitor does not exceed 15V, a ceramic type with a
minimum of 2% of the buck output capacitance and voltage class 16V would be
sufficient.
5.2.6
Out of the feedback voltage the charge pump generates a voltage between 8 and 10V.
The fly capacitor connected between C+ and C- is charged with the feedback voltage
level and discharged to achieve the (almost) double voltage level at CCP. C
to 100nF and C
The connection of CCP to a voltage source of e.g. 7V (take care of the maximum
ratings!) via a diode improves the start-up behavior at very low battery voltage. The diode
with the cathode on CCP has to be used in order to avoid any influence of the voltage
source to the device’s operation and vice versa.
5.2.7
At the input of Buck converters a square wave current is observed causing
electromagnetical interference on the battery line. The emission to the battery line
consists on one hand of components of the switching frequency (fundamental wave) and
its harmonics and on the other hand of the high frequency components derived from the
current slope. For proper attenuation of those interferers a -type input filter structure is
recommended which is built up with inductive (L
C
higher values might not be necessary, C
input capacitance with very low ESR should be chosen and placed as close to the input
of the Buck converter as possible.
Inexpensive input filters show due to their parasitics a notch filter characteristic, which
means basically that the lowpass filter acts from a certain frequency as a highpass filter
and means further that the high frequency components are not attenuated properly. For
that reason the TLE6368-G2 offers the possibility of current slope adjustment. The
current transition time can be set by the external resistor (located on the SLEW pin) to
times between 20ns and 80ns by varying the resistor value between 0
transition) and 20k (slowest transition).
5.2.8
To decrease the switching losses to a minimum the external components R
and D
where the Diode D
If this feature is not needed the three components are not needed and the Boost pin (33)
can be connected directly to the IN pins(32, 30).
Data Sheet
I3
). The inductance can be chosen up to the value of the Buck converter inductance,
Boost
Bootstrap capacitor (C
External charge pump capacitors (C
Input filter components for reduced EME (C
Feedback circuit for minimum switching loss (R
are needed. The current though the feedback resistor R
CCP
Boost
to 220nF, both ceramic types.
and the capacitor C
BTP
)
I1
and C
54
Boost
FLY
I3
run a part of the load current.
I
) and capacitive components (C
should be ceramic types and for C
, C
CCP
I1
)
, C
I2
Boost
, C
I3
, C
, L
Boost
Rev. 2.3, 2009-05-04
Boost
I
, R
is about a few mA
, D
Slew
TLE6368-G2
Boost
FLY
)
Boost
is chosen
)
(fastest
, C
I1
, C
I2
Boost
an
I2
,