TLE6711_07 Datasheet, PDF (20/25 Pages) Infineon Technologies AG – Multifunctional Voltage Regulator and Watchdog

TLE 6711
Diagrams: Oscillator and Boost/Buck-Converter Performance
6
Diagrams: Oscillator and Boost/Buck-Converter Performance
In the following the behaviour of the Boost/Buck-converter and the oscillator is shown.
Oscillator Frequency Deviation vs.
Junction Temperature
Boost Feedback Current vs.
Junction Temperature
10
kHz
∆f _OSC
5
AED02938
Referred to f_OSC
at T_j = 25 ˚C
-200
nA
I _FB
-300
AED02939
0
-400
-5
-500
-10
-600
-15
-50 -25 0 25 50 75 100 ˚C 150
T_j
Current Consumption vs.
Junction Temperature
3
mA
I _Boost
AED02940
2.5
Boost ON
Buck ON
2
I_{BO boost} = 0 mA
I_CC= 0 mA
1.5
-700
-50 -25 0 25 50 75 100 ˚C 150
T_j
Efficiency Buck vs.
Load
90
η^%
85
80
RT, HT
CT
AED02942
75
1
70
0.5
-50 -25 0 25 50 75 100 ˚C 150
T_j
65
50
150 mA 250
I _LOAD
Data Sheet
20
Rev. 3.4, 2007-08-16