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參數資料
| 型號： | TC54VC3902EZB |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBCY3 |
| 封裝： | TO-92, 3 PIN |
| 文件頁數： | 1/7頁 |
| 文件大小： | 81K |
| 代理商： | TC54VC3902EZB |
TC54 Series
TC54-13
8/23/99
TelCom Semiconductor reserves the right to make changes in the circuitry and specifications to its devices.
FEATURES
s
Precise Detection Thresholds .... Standard
± 2.0%
Custom
± 1.0%
s
Small Packages ...... 3-Pin SOT-23A, 3-Pin SOT-89,
3-Pin TO-92
s
Low Current Drain ..................................... Typ. 1
A
s
Wide Detection Range .......................... 1.1V to 6.0V
s
Wide Operating Voltage Range ............ 0.7V to 10V
APPLICATIONS
s
Battery Voltage Monitoring
s
Microprocessor Reset
s
System Brownout Protection
s
Switching Circuit in Battery Backup
s
Level Discriminator
GENERAL DESCRIPTION
The TC54 Series are CMOS voltage detectors, suited
especially 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,
in 0.1V steps 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
specified threshold voltage (V
–
DET). When VIN falls below
V
–
DET, the output is driven to a logic LOW. VOUT remains
LOW until VIN rises above V
–
DET by an amount VHYST,
whereupon it resets to a logic HIGH.
FUNCTIONAL BLOCK DIAGRAM
VOLTAGE DETECTOR
Output form:
N = Nch Open Drain
C = CMOS Output
Detected Voltage:
Ex: 15 = 1.5V; 60 = 6.0V
1.0% Tol.
Ex: 11 = 1.1V; 60 = 6.0V
2.0% Tol.
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: 3-Pin SOT-23A*, MB: 3-Pin SOT-89,
ZB: 3-Pin TO-92
Taping Direction:
TR: Standard Taping
RT: Reverse Taping
No Suffix: TO-92 Bulk
* 3-Pin SOT-23A is equivalent to EIAJ SC-59.
ORDERING INFORMATION
PART CODE TC54 V X XX X X X XX XXX
VOUT
TC54VC only
VSS
1
3
+
–
VIN
2
VREF
TC54VN has open-drain output.
TC54VC has complementary output.
PIN CONFIGURATIONS
13
2
VIN
VSS
V
IN
V
SS
VOUT
VSS
VOUT
V
OUT
TC54
1
2
3
2
*3-Pin SOT-23A
3-Pin SOT-89
3-Pin TO-92
*SOT-23A-3 is equivalent to EIAJ SC-59
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