Datasheet

Data Sheet 12 Rev. 1.02, 2012-08-24
IFX25401
Electrical Characteristics
4.3 Electrical Characteristics Enable Function
The Enable Function allows disabling/enabling the regulator via the input pin EN. The regulator is turned on in
case the pin EN is connected to a voltage higher than V
EN,H
. This can be e.g. the battery voltage, whereby no
additional pull-up resistor is needed. The regulator can be turned off by connecting the pin EN to a voltage less
than V
EN,L
, e.g. GND.
4.4 Typical Performance Characteristics Enable Function
Electrical Characteristics Enable
V
I
=13.5 V; T
j
= -40 °C to 125 °C; all voltages with respect to ground, positive current flowing into pin
(unless otherwise specified)
Pos. Parameter Symbol Limit Values Unit Measuring Condition
Min. Typ. Max.
4.3.14 High Level Input Voltage
V
EN,H
3.5––V V
Q
≥ 4.9 V
4.3.15 Low Level Input Voltage
V
EN,L
––0.5V V
Q
≤ 0.1 V
4.3.16 High Level Input Current
I
EN,H
5 1020µA V
EN
= 5 V
Enabled Input Current
I
EN
versus
Input Voltage
V
I
, (Device OFF)
Enabled Input Current
I
EN
versus
Enabled Input Voltage
V
EN
(Device ON)
09_IEN_VI.VSD
0
100
200
300
400
500
600
0 10203040
V I
[V]
I
EN
[nA]
T
j
= 150 °C
V
EN
= 0.5 V
V
EN
= 0.3 V
V
EN
= 0.1 V
10_IEN_VEN.VSD
0
10
20
30
40
50
60
70
80
0 10203040
V EN
[V]
I
EN
[µA]
T
j
= 150 °C
T
j
= -40 °C
T
j
= 25 °C