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參數(shù)資料
| 型號(hào)： | SEN013DG |
| 廠商： | POWER INTEGRATIONS INC |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO8 |
| 封裝： | GREEN, MS-012, SOP-8 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大小： | 1385K |
| 代理商： | SEN013DG |
Rev. B 11/05/10
3
SEN012-013
www.powerint.com
Applications Considerations
The maximum voltage that the device can sustain across the
VCC and G pin is 16 V. The maximum voltage that any of the
source channels can be at with respect to the ground terminal
is 6.5 V. SENZero has a typical on state resistance of approxi-
mately 500
W at room temperature. The device is therefore
typically used in series with high ohmic value resistors where
this on resistance is a small percentage of the total series
impedance.
It is not necessary to provide a local bypass capacitor on the
VCC pin.
Operating Configurations for the SENZero
One configuration to power up the SENZero is shown in Figure 7.
In this circuit, SENZero is powered up from an unregulated bias
winding through a simple series pass regulator formed by Q1,
R
B and VZ. This configuration ensures the VCC voltage is limited
even if the maximum bias voltage exceeds 16 V. During power
down, as soon as the bias voltage falls below V
Z, SENZero will
turn off.
The series pass transistor Q1 is necessary only if the bias
winding voltage regulation is not tight enough (unregulated). If
the voltage on the bias winding is regulated or is such that the
voltage on the VCC pin can be maintained in the range 6 V <
VCC < 16 V, then the series pass transistor (Q1, R
B and VZ) can
be eliminated.
Figure 7.
SENZero Powered from an Unregulated Bias Winding Through a Series
Pass Regulator. Device is Enabled When Bias Voltage is Present.
PI-6052-072010
Unregulated
Bias
Q1
(2N3904)
VZ
SENZero
VCC
G
D1
D2
S1
S2
RB
(2 k
)
PI-6051-072010
ON/OFF
Disable
Regulated
Auxiliary
Q1
(2N3906)
RB
(2 k
)
SENZero
VCC
G
RA
(20 k
)
D1
D2
S1
S2
PI-6053-110510
Unregulated
Bias
Q1
(2N3904)
VZ
SENZero
VCC
G
D1
D2
S1
S2
RB
(2 k
)
RB
)
ON/OFF
Enable
Q2
(2N3906)
A configuration that can be used to trigger remote-off
functionality is shown in Figure 8. In this configuration, a
regulated auxiliary output is used to power the IC. Transistor
Q1 serves as the ON/OFF switch which is commanded by the
Enable/Disable signal at its base.
Figure 8.
SENZero Powered From a Regulated Auxiliary Winding.
An alternative remote-off configuration is shown in Figure 9
where an unregulated bias voltage supplies the SENZero
through a series pass regulator similar to the one shown in
Figure 7. However the circuit of Figure 9 includes an ON/OFF
transistor Q2. In other versions of this circuit Q2 can be
replaced by an optocoupler allowing the ON/OFF disable signal
to be communicated from a secondary of the power supply
such as in PC power supplies.
Figure 9.
A Modified Version of an Unregulated Bias Winding Supplying Power
Through a Series Pass Regulator. Transistor Q2 Provides Remote-Off
Functionality.
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參數(shù)描述 |
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| SEN013DG-TL | 功能描述:PMIC 解決方案 SENZero 3 Chan, Discon IC RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| SEN0140 | 功能描述:10 DOF MEMS IMU SENSOR 制造商:dfrobot 系列:- 零件狀態(tài):在售 傳感器類型:加速計(jì)，陀螺儀，電子羅盤，壓力 感應(yīng)范圍:- 接口:- 靈敏度:- 電壓 - 電源:3 V ~ 8 V 嵌入式:- 所含物品:板 使用的 IC/零件:ADXL345，BMP085，HMC5883L，ITG3200 標(biāo)準(zhǔn)包裝:1 |
| SEN0142 | 制造商:DFROBOT 功能描述:6 DOF Sensor - MPU6050 |
| SEN0147 | 功能描述:SMART GRAYSCALE SENSOR 制造商:dfrobot 系列:- 零件狀態(tài):在售 傳感器類型:光，灰度 感應(yīng)范圍:- 接口:模擬 靈敏度:- 電壓 - 電源:5V 嵌入式:是，MCU，8 位 所含物品:板 使用的 IC/零件:ATtiny13A 標(biāo)準(zhǔn)包裝:1 |
| SEN0148 | 功能描述:DIGITAL TEMPERATURE & HUMIDI 制造商:dfrobot 系列:- 包裝:散裝 零件狀態(tài):在售 傳感器類型:濕度，溫度 濕度范圍:0 ~ 100% 相對(duì)濕度 輸出類型:數(shù)字 輸出:12 b 精度:±4.5% RH 響應(yīng)時(shí)間:8S 靈敏度:- 電壓 - 電源:2.4 V ~ 5.5 V 安裝類型:底座安裝 工作溫度:-40°C ~ 123°C 封裝/外殼:探頭組件 供應(yīng)商器件封裝:探頭組件 標(biāo)準(zhǔn)包裝:1 |
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