TLE6365_07 Datasheet, PDF (7/18 Pages) Infineon Technologies AG – Step Down Voltage Regulator with Reset

TLE 6365
Table 4
Electrical Characteristics (cont’d)
8 V < V_S < 35 V; 4.75 V < V_CC < 5.25 V; -40 °C < T_j < 150 °C; R_R = 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 V_CC
Logic supply voltage V_CC
4.9 –
5.1 V 1 mA < I_CC < 400 mA;
see Figure 6
Efficiency;
see Figure 6
Power-Stage ON
resistance
Power-Stage ON
resistance
η
–
85 –
% I_CC = 400 mA;
V_S = 14 V
R_BUON
–
0.38 0.5 Ω T_j = 25 °C;
I_BUO = 0.6 A
R_BUON
–
–
1.0 Ω I_BUO = 0.6 A
Buck overcurrent
threshold
I_BUOC
0.7 0.9 1.2 A –
Input current on pin I_CC
V_CC
––
500 µA V_CC = 5 V
Buck Gate supply
voltage;
V_BGS
5 7.2 10 V –
V_BGS = V_S - V_BDS
Reference Input; R (Oscillator; Timebase for Buck-Converter and Reset)
Voltage on pin R
V_R
Oscillator frequency f_OSC
Oscillator frequency f_OSC
Cycle time for reset t_CYL
timing
–
1.4 –
V R_R = 100 kΩ
85 95 105 kHz T_j = 25 °C
75 –
115 kHz –
–1
–
ms t_CYL = 100 / f_OSC
Data Sheet
7
Rev. 1.9, 2007-07-30