TLE 6365
Table 4
Electrical Characteristics (cont’d)
8 V < VS < 35 V; 4.75 V < VCC < 5.25 V; -40 °C < Tj < 150 °C; RR = 47 kΩ; all voltages
with respect to ground; positive current defined flowing into the pin; unless otherwise
specified
Parameter
Symbol
Limit Values
Unit Test Condition
Min. Typ. Max.
Buck-Converter; BUO, BDS, BUC and VCC
Logic supply voltage
VCC
4.9
–
5.1
–
V
1 mA < ICC < 400 mA;
see Figure 6
Efficiency;
see Figure 6
η
–
85
%
Ω
Ω
A
ICC = 400 mA;
VS = 14 V
Power-Stage ON
resistance
RBUON
RBUON
IBUOC
ICC
–
0.38 0.5
Tj = 25 °C;
I
BUO = 0.6 A
Power-Stage ON
resistance
–
–
1.0
1.2
500
10
I
BUO = 0.6 A
Buck overcurrent
threshold
0.7
–
0.9
–
–
Input current on pin
VCC
µA VCC = 5 V
Buck Gate supply
voltage;
VBGS
5
7.2
V
–
VBGS = VS - VBDS
Reference Input; R (Oscillator; Timebase for Buck-Converter and Reset)
Voltage on pin R
VR
–
1.4
95
–
–
V
RR = 100 kΩ
Oscillator frequency
Oscillator frequency
fOSC
fOSC
tCYL
85
75
–
105
115
–
kHz Tj = 25 °C
kHz –
Cycle time for reset
timing
1
ms
tCYL = 100 / fOSC
Data Sheet
7
Rev. 1.9, 2007-07-30
INFINEON [ Infineon ]
