TLE 6711G Infineon Technologies, TLE 6711G Datasheet - Page 14

• Manufacturer Part Number: TLE 6711G
• Manufacturer: Infineon Technologies

Specifications of TLE 6711G

• Packages: PG-DSO-14
• Comment: -
• Vq (max): 5.0V
• Iq (max): 250.0 mA
• Iq (typ): 1,500.0 µA
• Output: Boost/Buck Conv.

External loop compensation is required for converter stability, and is formed by connecting a compensation
resistor-capacitor series-network (
In the case of overload or short-circuit at
the DMOS output transistor is switched off by the overcurrent comparator immediately. The pulse width is then
controlled by the overcurrent comparator as seen before in the boost description.
In order to protect the
is provided which switches the output transistor off as soon as the voltage at pin
overvoltage threshold
Figure 11
Data Sheet
Most Important Waveforms of the Buck Converter Circuit
V
OCLK
V
PWM
V
BOOST
I
I
I
V
and
Error
BUO
DBU
BUO
V
V
V
BULI
CC5
CP
CV
C
H
H
L
L
V
V
CC
BUOVOFF
input as well as the external load against catastrophic failures, an overvoltage protection
= typ. 6.0 V.
R
BUC
Load-Current Increasing with Time;
,
Controlled by the Error Amp
C
BUC
V
CC
) between pin BUC and GND.
(the output current exceeds the buck overcurrent threshold
14
Error Voltage
Overcurrent Threshold Exceeded
Overcurrent Comp
Controlled by the
V
CC
exceeds the internal fixed
AED02673
Rev. 3.4, 2007-08-16
Circuit Description
t
t
t
t
t
t
TLE 6711
I
BUOC
)