TLE 8386-2EL Infineon Technologies, TLE 8386-2EL Datasheet - Page 13

• 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

6
6.1
R_OSC vs. switching frequency
The internal oscillator is used to determine the switching frequency of the boost regulator. The switching frequency
can be selected from 100 kHz to 700 kHz with an external resistor to GND. To set the switching frequency with an
external resistor the following formula can be applied.
In addition, the oscillator is capable of changing from the frequency set by the external resistor to a synchronized
frequency from an external clock source. If an external clock source is provided on the pin SYNC, the internal
oscillator should adjusted close to this frequency. Then it synchronizes to this external clock frequency and the
boost regulator switches at the synchronized frequency. The synchronization frequency capture range is from 250
kHz to 700 kHz.
Figure 4
Figure 5
Data Sheet
R
V
CLK
FREQ
141
Oscillator and Synchronization
Description
Oscillator and Synchronization Block Diagram and Simplified Application Circuit
Synchronization Timing Diagram
R
FREQ
SYNC
FREQ
10
12
s
1
f
Clock Frequency
FREQ
Oscillator
Detector
1
s
3
5 .
TLE8386-2EL
11
Multiplexer
10
3
PWM
Logic
Oscillator and Synchronization
Driver
Gate
Rev. 1.0, 2010-10-25
Oscillator_BlkDiag.vsd
TLE8386-2EL
SWO