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TC54VN4002ECB713 Datasheet, PDF (1/16 Pages) Microchip Technology – Voltage Detector | |||
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Voltage Detector
TC54
Features
⢠±2.0% Detection Thresholds
⢠Small Packages: 3-Pin SOT-23A, 3-Pin SOT-89,
and TO-92
⢠Low Current Drain: 1 µA (Typical)
⢠Wide Detection Range: 1.1V to 6.0V
⢠Wide Operating Voltage Range: 0.7V to 10V
Applications
⢠Battery Voltage Monitoring
⢠Microprocessor Reset
⢠System Brown-Out Protection
⢠Switching Circuit in Battery Backup
⢠Level Discriminator
Functional Block Diagram
VIN
TC54VC only
â
VOUT
+
VREF
VSS
TC54VN has open-drain output.
TC54VC has complementary(push-pull) output.
General Description
The TC54 series are CMOS voltage detectors that are
especially well suited for battery-powered applications
because of their extremely low 1 µA operating current
and small surface-mount packaging. Each part is laser-
trimmed to the desired threshold voltage, which can be
specified from 1.4V to 6.0V with a 2% tolerance.
The TC54 is available with either an open-drain or com-
plementary output stage. During operation, the TC54's
output (VOUT) remains in the logic-high state as long as
VIN is greater than the specified threshold voltage
(VDET â). When VIN falls below VDET â, the output is
driven to a logic-low. VOUT remains low until VIN rises
above VDET â by an amount VHYST, whereupon it
resets to a logic-high.
Package Types
3-Pin SOT-23A
VIN
3
3-Pin SOT-89
VIN
TC54
TC54
1
2
1 23
VOUT
VSS
VOUT VIN VSS
3-Pin TO-92
123
Note:
VOUT VIN VSS
3-Pin SOT-23A is equivalent to the
EIAJ SC-59
Device Features
Device
Output
Type
State
Reset Delay
Std. Trip Points(1) (typical)
TC54VN
Open-Drain
Active Low
No
1.4V, 2.1V, 2.7V, 2.9V
TC54VC
Push-Pull
Active Low
No
3.0V, 4.2V, 4.3V
Note 1: Custom Trip Points available. Minimum order requirement. Information available upon request.
© 2007 Microchip Technology Inc.
DS21434H-page 1
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