Q67006-A9286 INFINEON [Infineon Technologies AG], Q67006-A9286 Datasheet - Page 2

• Manufacturer Part Number: Q67006-A9286
• Description: 5-V Voltage Regulator
• Manufacturer: INFINEON [Infineon Technologies AG]

The device has two logic inputs, EN and H. It is turned ON by a voltage > 4 V at EN, for
example by the ignition and remains active in case H is set LOW, even if the voltage at
EN goes LOW. This makes it possible to implement a self-holding circuit without external
components. When the device is turned OFF, the output voltage drops to 0 V and current
consumption tends towards 0 A. (Please see following truth table).
Design Notes for External Components
The input capacitor
circuit consisting of lead inductance and input capacitance can be damped by a resistor
of approx. 1
regulating circuit. Stability is guaranteed for
temperature range.
State Table for Turn-On/Turn-Off Logic
Nr.
1
2
3
4
5
6
Data Sheet Version 1.3
Enable EN Hold H
L
H
H
X
L
L
in series with
X
X
L
L
L
H
C
I
is necessary for compensation line influences. The resonant
C
I
. The output capacitor is necessary for the stability of the
V
0 V
5 V
5 V
5 V
5 V
0 V
Q
Remarks
Initial state
Regulator switched on via pin 6, by ignition for
example
Pin 9 clamped active to GND by controller
while pin 6 is still HIGH
Previous state remains, even ignition is shut
off: self-holding state
Ignition shut off while regulator is in self-
holding state
Regulator shut down by releasing of pin 9
while pin 6 remains LOW, final state. No
active clamping required by external self-
holding circuit ( C) to keep regulator shut off
2
C
Q
100 nF within the operating
TLE 4287 G
2001-09-12