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TS3810CXRF

Description
Microprocessor Reset Circuit
File Size251KB,7 Pages
ManufacturerTaiwan Semiconductor
Websitehttp://www.taiwansemi.com/
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TS3810CXRF Overview

Microprocessor Reset Circuit

TS3809/3810 Series
Microprocessor Reset Circuit
SOT-23
Pin Definition:
TS3809
TS3810
1. GND
1. GND
2. RESET
2. (RESET)
3. VCC
3. VCC
General Description
The TS3809/3810 series are used for microprocessor (µP) supervisory circuits to monitor the power supplies in
µ
P
and digital systems. They provide excellent circuit reliability and low cost by eliminating external components and
adjustments when used with +5V, +3.3V, +3.0V, +2.5V powered circuits.
These circuits perform a single function: they assert a reset signal whenever the V
CC
supply voltage declines below a
preset threshold, keeping it asserted for at least 200ms after V
CC
has risen above the reset threshold. Reset
thresholds suitable for operation with a variety of supply voltages are available. TS3809/3810 series have push pull
outputs. TS3809 series have an active low RESET output, while the TS3810 has an active high RESET output The
reset comparator is designed to ignore fast transients on V
CC
, and the outputs are guaranteed to be in the correct
logic state for V
CC
down to 1.0V. Low supply current makes TS3809/3810 series ideal for use in portable equipment.
Features
High Accurate:
±2%
Precision monitoring of +3V, +3.3V and +5V Power
supply voltage
Fully specified over temperature
Available in three output configurations
Push-Pull RESET low output (TS3809)
Push-Pull (RESET) high output (TS3810)
200mS typ. Power-on reset pulse width
25µS supply current
Guaranteed reset valid to Vcc=+1V
Power supply transient immunity
Ordering Information
Part No.
TS3809CXx RF
Package
SOT-23
Packing
3Kpcs / 7” Reel
3Kpcs / 7” Reel
TS3810CXx RF
SOT-23
Note:
x
is the threshold voltage type, option as:
A
: 4.63V
B
: 4.38V
C
: 4.00V
D
: 3.08V
E
: 2.93V
F
: 2.63V
G
: 2.25V
Typical Application Circuit
Applications
Battery-operated systems and Controllers
Intelligent instruments
Critical uP and uC power monitoring
Portable / Battery powered equipment
Automotive
Absolute Maximum Rating
Parameter
Terminal Voltage (with respect to Gnd)
RESET & (RESET) push-pull
Input Current, V
CC
Output Current, RESET, (RESET)
Power Dissipation
Operating Junction Temperature Range
Storage Temperature Range
Lead Soldering Temperature (260 C)
o
Symbol
V
CC
V
RESET
I
CC
I
O
P
D
T
J.OPR
T
STG
T
LEAD
Maximum
GND - 0.3 to GND +6.5
GND - 0.3 to V
CC
+0.3
20
5
(T
J
-T
A
)/θ
JA
-40 ~ +125
-65 ~ +150
10
Unit
V
V
mA
mA
mW
o
C
o
C
S
1/7
Version: C07

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