TLE 8386-2EL Infineon Technologies, TLE 8386-2EL Datasheet - Page 21

• Manufacturer Part Number: TLE 8386-2EL
• Manufacturer: Infineon Technologies

Specifications of TLE 8386-2EL

• Packages: PG-SSOP-14
• Comment: LS-sense-booster (prefered as voltage source);Can be used in SEPIC- or FLYBACK-configuration as wellMax. output current dependent on output voltage.
• Vq (max): adj (max 9-times of VS)
• Iq (max): -
• Iq (typ): 7,000.0 µA
• Output: Boost Converter

10.1.1
The TLE8386-2EL can be configured as a boost converter, where the desired output voltage V
than the input voltage V
output current will only be limited by the input voltage V
A typical boost converter application is shown in Figure 8, the elements and abbreviations and their meanings are:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
The ratio between input voltage V
In discontinous conduction mode (DCM) the conversion ratio at a fixed frequency is higher, the switching current
increases and efficiency is reduced. The maximum duty cycle D
Data Sheet
L
L
C
C
C
D
V
V
V
R
R
R
R
R
C
C
D = duty cycle
D
f
I
I
I
FREQ
IN
BO
BOMAX
BOOST
INPUT
IN
INMIN
BO
IN1
IN2
OUT
BOOST
CS
FBH
FBL
COMP
FREQ
SST
IVCC
MAX
= input current
= output current
= input voltage
= boost output voltage
= current sense resistor
= input filter capacitor
= additional input filter capacitor, recommended to reduce electromagnetic emissions
= boost output voltage resistor divider, lowside resistor
= boost output voltage resistor divider, highside resistor
= softstart setting capacitor
= maximum duty cycle
= output filter capacitor
= Switching Frequency
= capacitor for internal LDO
, C
= input filter inductor, recommended to reduce electromagnetic emissions
= minimum input voltage
= frequency setting resistor
= maximum output current
= boost inductor
= output diode
COMP
Principle:
= compensation network elements
IN
. A boost convertor is not short-circuit protected. If the output voltage V
IN
and output voltage V
V
---------- -
V
BO
IN
=
------------ -
1 D
–
1
19
IN
BO
D
capability.
in continuos conduction mode (CCM) is:
=
V
------------------------- -
MAX
BO
V
occurs for minimum input voltage V
BO
–
V
IN
Application Information
Rev. 1.0, 2010-10-25
BO
TLE8386-2EL
BO
is always higher
is shorted, the
INMIN
.