TCM809SVLB713 Microchip Technology, TCM809SVLB713 Datasheet - Page 5
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TCM809SVLB713
Manufacturer Part Number
TCM809SVLB713
Description
IC RESET MONITOR 2.93V SC70-3
Manufacturer
Microchip Technology
Type
Simple Reset/Power-On Resetr
Datasheet
1.TCM809MVNB713.pdf
(16 pages)
Specifications of TCM809SVLB713
Number Of Voltages Monitored
1
Output
Push-Pull, Totem Pole
Reset
Active Low
Reset Timeout
140 ms Minimum
Voltage - Threshold
2.93V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
SC-70-3, SOT-323-3
Threshold Voltage
2.93V
No. Of Supervisors / Monitors
1
Supply Voltage Range
1V To 5.5V
Reset Type
Active-Low / Push-Pull
Supply Current
12µA
Delay Time
320ms
Digital Ic Case Style
SC-70
Monitored Voltage
2.5 V, 3 V, 3.3 V, 5 V
Undervoltage Threshold
2.89 V
Overvoltage Threshold
2.96 V
Output Type
Active Low, Push-Pull
Manual Reset
Not Resettable
Watchdog
No Watchdog
Battery Backup Switching
No Backup
Power-up Reset Delay (typ)
560 ms
Supply Voltage (max)
5.5 V
Supply Voltage (min)
1 V
Supply Current (typ)
9 uA
Maximum Power Dissipation
174 mW
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Power Fail Detection
No
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
TCM809SVLB713
TCM809SVLB713TR
TCM809SVLB713TR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
TCM809SVLB713
Manufacturer:
MICROCHIP
Quantity:
12 000
4.0
4.1
The TCM809/TCM810 provides accurate V
ing and reset timing during power-up, power-down and
brown-out/sag conditions. These devices also reject
negative-going transients (glitches) on the power
supply line. Figure 4-1 shows the maximum transient
duration vs. maximum negative excursion (overdrive)
for glitch rejection. Any combination of duration and
overdrive that lies under the curve will not generate a
reset signal.
FIGURE 4-1:
Duration vs. Overdrive for Glitch Rejection at
+25°C.
© 2005 Microchip Technology Inc.
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1
APPLICATIONS INFORMATION
V
400
320
240
160
80
DD
0
V
1
TCM8XXZ/R/S/T
Reset Comparator Overdrive (mV)
(SOT-23)
Transient Rejection
DD
T
A
Reset Comparator Overdrive
= +25°C
[V
10
Maximum Transient
Duration
TH
[V
5
TCM8XXL/M/J (SOT-23)
TH
– V
– V
DD
TCM8XXZ/R/S/T (SC-70)
] (mv)
DD
TCM8XXL/M/J (SC-70)
Overdrive
] (mv)
V
100
TH
100
DD
1000
monitor-
1000
Combinations above the curve are detected as a
brown-out
immunity can be improved by adding a capacitor in
close proximity to the V
4.2
The TCM809 RESET output is valid to V
Below this voltage the output becomes an "open cir-
cuit" and does not sink current. This means CMOS
logic inputs to the microcontroller will be floating at an
undetermined voltage. Most digital systems are
completely shut down well above this voltage.
However, in situations where RESET must be main-
tained valid to V
connected from RESET to ground to discharge stray
capacitances and hold the output low (Figure 4-2). This
resistor value, though not critical, should be chosen
such that it does not appreciably load RESET under
normal operation (100 k
applications). Similarly, a pull-up resistor to V
required for the TCM810 to ensure a valid high RESET
for V
FIGURE 4-2:
RESET output of the TCM809 ensures that the
RESET output is valid to V
DD
below 1.0V.
RESET Signal Integrity During
Power-Down
TCM809/TCM810
or
TCM809
DD
power-down
GND
V
V
= 0V, a pull-down resistor must be
DD
DD
RESET
The addition of R
DD
pin of the TCM809/TCM810.
will be suitable for most
DD
condition.
= 0V.
R
100 k
1
DS21661D-page 5
1
DD
at the
Transient
= 1.0V.
DD
is