TLE6389_07 Datasheet, PDF (18/38 Pages) Infineon Technologies AG – Step-Down DC/DC Controller

TLE 6389
4
Electrical Characteristics (cont’d)
5V < V_VS < 48V; -40°C < T_j < 150 °C;
All voltages with respect to ground; positive current defined flowing into the pin; unless otherwise specified
Item Parameter
Symbol Limit Values Unit Test Condition
min. typ. max.
ENABLE Input
4.59
4.60
Enable ON-
threshold
V_ENABLE, 4.5
ON
Enable OFF-
threshold
V_ENABLE,
OFF
SI_ENABLE Input
V
0.8 V
4.61 Enable ON-
threshold
4.62 Enable OFF-
threshold
SI_GND Input
V_ENABLE, 4.5
ON
V_ENABLE,
OFF
V
0.8 V
4.63 Switch ON
R_SW
resistance
Battery Voltage Sense
50 100 230 Ω
V_{SI_ENABLE} = 5V;
I_{SI_GND} = 3mA;
4.64
4.65
4.66
Sense threshold
Sense threshold
Sense threshold
hysteresis
V_{SI, low}
V_{SI, high}
V_{SI, hys}
1.22 1.25 1.28 V
1.33
V
50 80 120 mV
V_VS decreasing
V_VS increasing
4.67
Sense output pull R_SO
up resistor
4.68
4.69
Sense out output
High voltage
Sense out output
Low voltage
V_SO,H
V_SO,L
4.70
10 20 40 kΩ
0.8*
V
V_VOUT
0.2 0.4 V
0.4 V_VOUT V
/V
TLE6389-2 GV50,
TLE6389-3 GV50;
Internally con-
nected to V_VOUT
I_SO,H =0mA
I_SO,L = 1mA;
2.5V < V_VOUT;
V_SI < 1.13 V
I_SOL=0.2mA;
1V < V_VOUT < 2.5V;
V_SI < 1.13 V
Datasheet Rev. 2.1
18
2007-08-13