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參數(shù)資料
| 型號： | TC54xxxx |
| 廠商： | TelCom Semiconductor, Inc. |
| 英文描述： | VOLTAGE DETECTOR |
| 中文描述： | 電壓檢測器 |
| 文件頁數(shù)： | 1/3頁 |
| 文件大小： | 50K |
| 代理商： | TC54XXXX |
4-279
TELCOM SEMICONDUCTOR, INC.
7
6
5
4
3
1
2
8
TC54
FEATURES
Precise Detection Thresholds .... Standard
±
2.0%
I
Custom
±
1.0%
I
I
I
I
Small Packages ...........SOT-23A-3, SOT-89, TO-92
Low Current Drain .....................................Typ. 1
μ
A
Wide Detection Range..........................2.1V to 6.0V
Wide Operating Voltage Range ............1.5V to 10V
APPLICATIONS
I
I
I
I
I
Battery Voltage Monitoring
Microprocessor Reset
System Brownout Protection
Switching Circuit in Battery Backup
Level Discriminator
GENERAL DESCRIPTION
The TC54 Series are CMOS voltage detectors, suited
especially for battery-powered applications because of their
extremely low 1
μ
A operating current and small surface-
mount packaging. Each part is laser trimmed to the desired
threshold voltage which can be specified from 2.1V to 6.0V,
in 0.1V steps.
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 (V
OUT
) remains in the
logic HIGH state as long as V
IN
is greater than the
specified threshold voltage (V
–
V
–
LOW until V
IN
rises above V
–
whereupon it resets to a logic HIGH.
DET
). When V
IN
falls below
DET
, the output is driven to a logic LOW. V
OUT
remains
DET
by an amount V
HYST
,
FUNCTIONAL BLOCK DIAGRAM
VOLTAGE DETECTOR
Output form:
N = Nch Open Drain
C = CMOS Output
Detected Voltage:
Ex: 21 = 2.1V; 60 = 6.0V
Extra Feature Code:
Fixed: 0
Tolerance:
1 =
±
1.0% (custom)
2 =
±
2.0% (standard)
Temperature:
E: – 40
°
C to + 85
°
C
Package Type and Pin Count:
CB: SOT-23A-3*, MB: SOT-89-3, ZB: TO-92-3
Taping Direction:
Standard Taping
Reverse Taping
No suffix: TO-92 Bulk
*SOT-23A-3 is equivalent to EIAJ (SC-59).
ORDERING INFORMATION
PART CODE TC54 V X XX X X X XX XXX
TC54-10 11/8/96
VOUT
1
TC54VC only
VSS
3
+
–
VIN
2
VREF
TC54VN has open-drain output.
TC54VC has complementary output.
PIN CONFIGURATIONS
1
3
2
VIN
VIN
VSS
V
V
VOUT
VSS
VOUT
V
TC54
TC54
TC54
1
1
2
3
3
2
*SOT-23A-3
SOT-89-3
TO-92
*SOT-23A-3 is equivalent to EIAJ (SC-59)
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