- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄371186 > TLV3012AIDCKT Nanopower, 1.8V, SOT23 Comparator with Voltage Reference PDF資料下載
參數(shù)資料
| 型號： | TLV3012AIDCKT |
| 英文描述： | Nanopower, 1.8V, SOT23 Comparator with Voltage Reference |
| 中文描述： | Nanopower，電壓為1.8V，SOT23封裝的電壓基準比較 |
| 文件頁數(shù)： | 9/13頁 |
| 文件大小： | 236K |
| 代理商： | TLV3012AIDCKT |
TLV3011, TLV3012
SBOS300B
9
www.ti.com
FIGURE 4. The TLV3011 or TLV3012 Configured as a
Power Up Reset Circuit for the MSP430.
POWER-ON RESET
The reset circuit shown in Figure 4 provides a time delayed
release of reset to the MSP430 microcontroller. Operation of
the circuit is based on a stabilization time constant of the
supply voltage, rather than on a predetermined voltage
value. The negative input is a reference voltage created by
the internal voltage reference. The positive input is an RC
circuit that provides a power-up delay. When power is ap-
plied, the output of the comparator is low, holding the
processor in the reset condition. Only after allowing time for
the supply voltage to stabilize does the positive input of the
comparator become higher than the negative input, resulting
in a high output state, releasing the processor for operation.
The stabilization time required for the supply voltage is
adjustable by the selection of the RC component values. Use
of a lower-valued resistor in this portion of the circuit will not
increase current consumption because no current flows
through the RC circuit after the supply has stabilized.
FIGURE 5. TLV3012 Configured as a Relaxation Oscillator.
V+
TLV301x
C
10nF
DI
R
1
1M
R
PULL-UP(1)
10k
RESET
MSP430
1.242V
REF
NOTE: (1) Use R
PULL-UP
with the TLV3011 only.
The reset delay needed depends on the power-up character-
istics of the system power supply. R
1
and C
1
are selected to
allow enough time for the power supply to stabilize. D
1
provides rapid reset if power is lost. In this example, the
R
1
C
1
time constant is 10mS.
RELAXATION OSCILLATOR
The TLV3012 can be configured as a relaxation oscillator as
in Figure 5 to provide a simple and inexpensive clock output.
The capacitor is charged at a rate of T = 0.69RC. It also
discharges at a rate of 0.69RC. Therefore, the period is
T = 1.38RC. R
1
may be a different value than R
2
.
V+
F
= 724Hz
V+
2/3 (V+)
1/3 (V+)
R
2
1M
R
1
1M
R
2
1M
R
2
1M
V
OUT
V
C
V+
t
C
1000pF
T
1
T
2
t
TLV3012
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TLV370x | Nanopower, 1.8V, SOT23 Comparator with Voltage Reference |
| TLV3012AIDBVRG4 | CONN,DIN,RA PCMT,96,F |
| TLV340x | Nanopower, 1.8V, SOT23 Comparator with Voltage Reference |
| TLV320DAC26 | LOW POWER STEREO AUDIO DAC WITH HEADPHONE/SPEAKER AMPLIFIER |
| TLV320AIC32 | LOW POWER STEREO AUDIO CODEC FOR PORTABLE AUDIO/TELEPHONY |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TLV3012AIDCKTG4 | 功能描述:校驗器 IC Nanopower 1.8V Push-Pull RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| TLV3012AQDCKRQ1 | 功能描述:校驗器 IC AC NanoPwr,1.8V Push-Pull Comparator RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| TLV3012-Q1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:NANOPOWER 1.8-V COMPARATOR WITH VOLTAGE REFERENCE |
| TLV313IDBVR | 功能描述:IC OP AMP RR 1MHZ SOT23-5 制造商:texas instruments 系列:- 包裝:剪切帶（CT） 零件狀態(tài):在售 放大器類型:通用 電路數(shù):1 輸出類型:滿擺幅 壓擺率:0.5 V/μs 增益帶寬積:1MHz 電流 - 輸入偏置:1pA 電壓 - 輸入失調(diào):750μV 電流 - 電源:65μA 電壓 - 電源，單/雙（±）:1.8 V ~ 5.5 V，±0.9 V ~ 2.75 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商器件封裝:SOT-23-5 標準包裝:1 |
| TLV313IDBVT | 功能描述:General Purpose Amplifier 1 Circuit Rail-to-Rail SOT-23-5 制造商:texas instruments 系列:- 包裝:剪切帶（CT） 零件狀態(tài):新產(chǎn)品 放大器類型:通用 電路數(shù):1 輸出類型:滿擺幅 壓擺率:0.5 V/μs 增益帶寬積:1MHz -3db 帶寬:- 電流 - 輸入偏置:1pA 電壓 - 輸入失調(diào):750μV 電流 - 電源:65μA 電流 - 輸出/通道:15mA 電壓 - 電源，單/雙（±）:1.8 V ~ 5.5 V，±0.9 V ~ 2.75 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商器件封裝:SOT-23-5 標準包裝:1 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。