TLE 6365

Data Sheet

7

Rev. 1.9, 2007-07-30

Buck-Converter; BUO, BDS, BUC and

V

CC

Logic supply voltage

V

CC

4.9

–

5.1

V

1 mA <

I

Efficiency;

η

–85

–

%

I

V

Power-Stage ON

resistance

R

BUON

–0.38

0.5

Ω

T

I

Power-Stage ON

resistance

R

BUON

––

1.0

Ω

I

Buck overcurrent

threshold

I

BUOC

0.7

0.9

1.2

A

–

Input current on pin

V

CC

I

CC

––

500

µA

V

Buck Gate supply

voltage;

V

V

BGS

57.2

10

V

–

Reference Input; R (Oscillator; Timebase for Buck-Converter and Reset)

Voltage on pin R

V

R

–1.4

–

V

R

Oscillator frequency

f

OSC

85

95

105

kHz

T

Oscillator frequency

f

OSC

75

–

115

kHz

–

Cycle time for reset

timing

t

CYL

–1

–

ms

t

Table 4

Electrical Characteristics (cont’d)

8 V <

V

with respect to ground; positive current defined flowing into the pin; unless otherwise

specified

Parameter

Symbol

Limit Values

Unit Test Condition

Min.

Typ.

Max.