Data Sheet

20

Rev. 3.4, 2007-08-16

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

Current Consumption vs.

Junction Temperature

Boost Feedback Current vs.

Junction Temperature

Efficiency Buck vs.

Load

AED02938

j

T

-15

OSC

-10

-5

0

5

kHz

10

-50 -25

0

25 50 75 100 ˚C 150

j

at

AED02940

j

T

0.5

1

1.5

2

2.5

mA

3

-50 -25

0

25 50 75 100 ˚C 150

Boost

I

Boost ON

Buck ON

BO boost

I

= 0 mA

= 0 mA

CC

I

AED02939

j

T

-700

-600

-500

-400

-300

nA

-200

-50 -25

0

25 50 75 100 ˚C 150

FB

I

AED02942

η

LOAD

I

50

150

250

mA

65

70

75

80

85

%

90

RT, HT

CT