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参数资料
| 型号： | TC54VN1102ECB713 |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3 |
| 封装： | EIAJ, PLASTIC, SC-59, SOT-23A, 3 PIN |
| 文件页数： | 1/16页 |
| 文件大小： | 339K |
| 代理商： | TC54VN1102ECB713 |
2003 Microchip Technology Inc.
DS21434D-page 1
M
TC54
Features
Precise Detection Thresholds: Standard ±2.0%,
Custom ±1.0%
Small Packages: 3-Pin SOT-23A, 3-Pin SOT-89,
TO-92 and 5-Pin SOT-23A (7.7V only)
Low Current Drain: Typ. 1 A
Wide Detection Range: 1.1V to 6.0V and 7.7V
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
General Description
The TC54 Series are CMOS voltage detectors that are
especially well suited for battery-powered applications
because of their extremely low 1 A operating current
and small surface-mount packaging. Each part is laser-
trimmed to the desired threshold voltage, which can be
specified from 1.1V to 6.0V and 7.7V, for a 2% and 1.5V
to 6.0V for a 1% tolerance.
The device includes a comparator, low-current high-
precision reference, laser-trimmed divider, hysteresis
circuit and output driver. The TC54 is available with
either an open-drain or complementary output stage.
In operation, the TC54's output (VOUT) remains in the
logic high state as long as VIN is greater than the spec-
ified threshold voltage (VDET -). When VIN falls below
VDET - the output is driven to a logic low. VOUT remains
low until VIN rises above VDET - by an amount VHYST,
whereupon it resets to a logic high.
Package Types
VOUT
TC54VC only
VSS
1
3
+
–
VIN
2
TC54VN has open-drain output.
TC54VC has complementary output.
VREF
1
3
2
VIN VSS
VOUT
TC54
3-Pin SOT-89
5
5-Pin SOT-23A
TC54
1
3
4
2
NC
VOUT
VIN
VSS
NC
Note:
3-Pin SOT-23A is equivalent to the EIAJ SC-59
5-Pin SOT-23A is equivalent to the EIAJ SC-74A.
(7.7V ONLY)
3-Pin TO-92
12 3
VSS
VIN
VOUT
VSS
VOUT
VIN
3
12
TC54
3-Pin SOT-23A
Voltage Detector
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