Q67006-A9308 SIEMENS [Siemens Semiconductor Group], Q67006-A9308 Datasheet - Page 15

• Manufacturer Part Number: Q67006-A9308
• Description: Dual Low-Drop Voltage Regulator
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Figure 4
Reset Timing
Reset Switching Threshold
The internally set reset threshold is 4.65 V. When using the TLE 4470 G (P-DSO-20-6)
this threshold can be adjusted to 3.5 V <
divider to pin RADJ. If this pin is not needed, it can be left open or even better connected
to GND.
Definitions:
The reset output pin is internally connected to the stand-by output Q1 via a 30 k pull-up
resistor. The reset LOW signal at pin RQ in guaranteed down to an output voltage
1 V typical.
Semiconductor Group
V
V
V
V
Q
D
RO
Power-on-Reset
t
d
V
V
(Reset adjust input current
RT
ref
V
RT
= Reset threshold
= comparator reference voltage, typical 1.35 V
Thermal
Shutdown
t
RR
R
1
Voltage Dip
=
at Input
R
2
(
V
V
RTH
15
RT
50 nA)
Undervoltage
–
< 4.6 V by connecting an external voltage
V
ref
) /
V
ref
Secondary
Spike
<
t
RR
at Output
Overload
V d
dt
=
C
d
D
TLE 4470
1998-11-01
AED01542
V
V
V
Q1
DT
ST
of