VOLTAGEDETECTOR
TC54
* Static-sensitive device. Unused devices must be stored in conductive
material. Protect devices from static discharge and static fields. Stresses
above those listed under Absolute Maximum Ratings may cause perma-
nent 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 operational sections of the specifications is not implied.
Exposure to Absolute Maximum Rating Conditions for extended periods
may affect device reliability.
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage (VIN) ..................................................................... 12V
Output Voltage: CMOS ............ (VSS – 0.3) to (VIN + 0.3)
Open Drain ................. (VSS – 0.3) to 12V
Output Current .........................................................50mA
Power Dissipation: (TA ≤ 70°C)
SOT-23A-3 .....................................................240mW
SOT-89-3 .......................................................400mW
TO-92
.......................................................440mW
Operating Temperature .......................... – 40°C to + 85°C
Storage Temperature ........................... – 65°C to + 150°C
Soldering Temperature ...................... 300°C, 10 seconds
ELECTRICAL CHARACTERISTICS: TA = 25°C, unless otherwise specified.
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
VIN
ISS
Operating Voltage
Quiescent Current
V–DET = 2.1 to 6.0V
1.5
10.0
V
VIN
=
2.1V
3.0V
4.0V
5.0V
1.0
1.3
1.6
2.0
3.0
3.4
3.8
4.2
(V–DET
x 1.02
(V–DET
µA
VD–ET
VHYST
IOUT
Threshold Voltage
Hysteresis Range
Output Current
(V–DET
x 0.98
(V–DET
x 0.02
)
)
V
)
(V–DET
)
)
V
x 0.05 x 0.08
Nch VDS = 0.5
VIN = 2.1V
3.0V
7.7
mA
10.1
11.5
13.0
4.0V
5.0V
Pch VDS = 2.1V
VIN = 8.0V
– 10.0
TC (VD–ET
)
Tempco of (VD–ET
)
– 40°C ≤ TA ≤ 85°C
± 100
ppm/°C
PIN DESCRIPTION
Pin No.
Symbol
Description
1
2
VIN
Analog input. This pin is both the power supply input and the voltage to be monitored.
VOUT
Digital output. This output goes low when VIN drops below VD–ET and returns
high when VIN rises above V–DET + VHYST. (See timing chart).
3
VSS
Ground terminal.
4-280
TELCOM SEMICONDUCTOR, INC.
TELCOM [ TELCOM SEMICONDUCTOR, INC ]
