TLE 4279
Table 4
Characteristics (cont’d)
VI = 13.5 V; Tj = -40 °C < Tj < 125 °C
Parameter
Symbol
Limit Values Unit Measuring
Min. Typ. Max.
Condition
Input Voltage Sense
Sense threshold high VSI, high 1.24 1.31 1.38 V
–
Sense threshold low
VSI, low 1.16 1.20 1.28 V
–
Sense output low
voltage
VSO, low –
0.1 0.4 V
VSI < 1.20 V;
VQ > 3 V;
Rextern = 20 kΩ
Sense input current
ISI
-1 0.1 1
µA –
1) Drop voltage = VI - VQ (measured when the output voltage has dropped 100 mV from the nominal value
obtained at 13.5 V input.)
Data Sheet
9
Rev. 2.3, 2004-01-01