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TC1279 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - (TC1278) 3-Pin Reset Monitors for 5V Systems - Microchip Technology

भाग संख्या TC1279
समारोह (TC1278) 3-Pin Reset Monitors for 5V Systems
मैन्युफैक्चरर्स Microchip Technology 
लोगो Microchip Technology लोगो 
पूर्व दर्शन
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<?=TC1279?> डेटा पत्रक पीडीएफ

TC1279 pdf
TC1278/TC1279
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings*
Supply Voltage (VCC to GND) ..............................+6.0V
RESET, RESET...........................-0.3V to (VCC + 0.3V)
Input Current, VCC ...............................................20mA
Output Current, RESET....................................... 20mA
Power Dissipation (TA 70°C)
3-Pin SOT-23B (derate 4mW/°C above +70°C)
................................................................. 230mW
Operating Temperature Range............. -40°C to +85°C
Storage Temperature Range .............. -65°C to +150°C
*Stresses above those listed under "Absolute Maximum
Ratings" may cause permanent damage to the device. These
are stress ratings only and functional operation of the device
at these or any other conditions above those indicated in the
operation sections of the specifications is not implied.
Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability.
TC1278/TC1279 ELECTRICAL SPECIFICATIONS
Recommended DC Operating Conditions: TA = -40°C to +85°C unless otherwise noted. Typical values are at TA = +25°C.
Symbol
Parameter
Min
Typ Max Units
Device
Test Conditions
VCC Supply Voltage
1.2 — 5.5 V
Note 1
DC Electrical Characteristics: TA = -40°C to +85°C unless otherwise noted. Typical values are at TA = +25°C.
Symbol
Parameter
Min Typ Max Units
Test Conditions
VOL Low Level @ RESET
RESET
— — 0.4 V TC1278
TC1279
Note 1
IOL Output Current @ 0.4 Volts
+8 — — mA
Note 2
ICC1 Operating Current
— 0.9 2.0 mA TC1278
— — 40 µA TC1279
VCC > VCCTP(MAX)
VCC > VCCTP(MAX)
ICC2 Operating Current
— — 40 µA TC1278
— 0.9 2.0 mA TC1279
VCC < VCCTP(MIN)
VCC < VCCTP(MIN)
VCCTP-5 VCC Trip Point (TC1278/9-5)
4.50 4.625 4.74 V
Note 1
VCCTP-10 VCC Trip Point (TC1278/9-10)
4.25
4.375 4.49 V
Note 1
VCCTP-15 VCC Trip Point (TC1278/9-15)
4.00
4.125 4.24 V
Note 1
COUT Output Capacitance
— 9 — pF
RP Internal Pull-Up Resistor
3 6 9 k
AC Electrical Characteristics: TA = -40°C to +85°C unless otherwise noted. Typical values are at TA = +25°C.
Symbol
Parameter
Min Typ Max Units
Test Conditions
tRST
tRPD1
tRPD2
tF
RESET Active Time
VCC Detect to RESET
VCC Detect to RESET
VCC Slew Rate
(4.75V-4.00V)
250 350 450 msec
— 2 5 µsec TC1279
— 2 5 µsec TC1278
300 — — µsec
Figure 3-2
Figure 3-4
Figure 3-2, Figure 3-4
tR VCC Slew Rate
(4.00V-4.75V)
0 — — nsec
Figure 3-1, Figure 3-3
tRPU1 VCC Detect to RESET
250 350 450 msec TC1279
Figure 3-1
tRPU2 VCC Detect to RESET
250 350 450 msec TC1278
Figure 3-3
Note 1: All voltages referenced to ground.
2: A 1kexternal resistor may be required in some applications for proper operation of the microprocessor reset control circuit when using
the TC1279. VCC = 1.8V.
DS21384B-page 2
© 2002 Microchip Technology Inc.

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