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參數(shù)資料
| 型號： | AD8213WYRMZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 12/16頁 |
| 文件大?。?/td> | 381K |
| 描述： | IC CURRENT MONITOR 0.25% 10MSOP |
| 標準包裝： | 50 |
| 功能： | 電流監(jiān)控器 |
| 檢測方法： | 高端 |
| 精確度： | ±0.25% |
| 輸入電壓： | -2 V ~ 65 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 10-TFSOP，10-MSOP（0.118"，3.00mm 寬） |
| 供應商設備封裝： | 10-MSOP |
| 包裝： | 管件 |
AD8213
Data Sheet
Rev. C | Page 12 of 16
APPLICATIONS INFORMATION
HIGH-SIDE CURRENT SENSE WITH A LOW-SIDE
SWITCH
In such load control configurations, the PWM controlled switch
is ground referenced. An inductive load (solenoid) is tied to a
power supply. A resistive shunt is placed between the switch and
the load (see Figure 28). An advantage of placing the shunt on
the high side is that the entire current, including the recircu-
lation current, can be measured, because the shunt remains in
the loop when the switch is off. In addition, diagnostics can be
enhanced because shorts to ground can be detected with the
shunt on the high side. In this circuit configuration, when the
switch is closed, the common-mode voltage moves down to
near the negative rail. When the switch is opened, the voltage
reversal across the inductive load causes the common-mode
voltage to be held one diode drop above the battery by the
clamp diode.
IN2
1
+IN2
2
GND
3
OUT2
4
CF2
5
IN1
10
+IN1
9
V+
8
OUT1
7
CF1
6
AD8213
INDUCTIVE
LOAD
CLAMP
DIODE
SWITCH
SHUNT
BATTERY
INDUCTIVE
LOAD
CLAMP
DIODE
SWITCH
SHUNT
BATTERY
5V
CAP1
CAP2
Figure 28. Low-Side Switch
HIGH-SIDE CURRENT SENSING
In this configuration, the shunt resistor is referenced to the
battery. High voltage will be present at the inputs of the current
sense amplifier. In this mode, the recirculation current is again
measured and shorts to ground can be detected. When the
shunt is battery referenced the AD8213 produces a linear
ground referenced analog output. An AD8214 can also be used
to provide an overcurrent detection signal in as little as 100 ns.
This feature will be useful in high current systems, where fast
shutdown in overcurrent conditions is essential.
IN2
1
+IN2
2
GND
3
OUT2
4
CF2
5
IN1
10
+IN1
9
V+
8
OUT1
7
CF1
6
AD8213
LOAD
SWITCH
CAP2
SHUNT
1
V
S
2
+IN
3
V
REG
4
NC
8
IN
7
NC
6
GND
5
OUT
AD8214
OVERCURRENT
DETECTION (<100ns)
LOAD
SWITCH
CAP1
SHUNT
1
V
S
2
+IN
3
V
REG
4
NC
8
IN
7
NC
6
GND
5
OUT
AD8214
OVERCURRENT
DETECTION (<100ns)
5V
Figure 29. Battery Referenced Shunt Resistor
LOW-SIDE CURRENT SENSING
In systems where low-side current sensing is preferred, the
AD8213 provides an integrated solution with great accuracy.
Ground noise is rejected, CMRR is typical higher than 90 dB, and
output linearity is not compromised, regardless of the input
differential voltage.
IN2
1
+IN2
2
GND
3
OUT2
4
CF2
5
IN1 10
+IN1
9
V+
8
OUT1
7
CF1
6
AD8213
INDUCTIVE
LOAD
CLAMP
DIODE
SWITCH
SHUNT
BATTERY
INDUCTIVE
LOAD
CLAMP
DIODE
SWITCH
SHUNT
BATTERY
5V
Figure 30. Ground Referenced Shunt Resistor
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AD8213WYRMZ-R7 | 功能描述:IC CURRENT MONITOR 0.25% 10MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)流/電流管理 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 功能:電流開關 檢測方法:- 精確度:±10% 輸入電壓:1.7 V ~ 5.5 V 電流 - 輸出:600mA 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-UFQFN 供應商設備封裝:10-UTQFN（1.4x1.8） 包裝:管件 |
| AD8213WYRMZ-RL | 功能描述:IC CURRENT MONITOR 0.25% 10MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)流/電流管理 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 功能:電流開關 檢測方法:- 精確度:±10% 輸入電壓:1.7 V ~ 5.5 V 電流 - 輸出:600mA 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-UFQFN 供應商設備封裝:10-UTQFN（1.4x1.8） 包裝:管件 |
| AD8213YRMZ | 功能描述:IC CURRENT MONITOR 0.25% 10MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)流/電流管理 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 功能:電流開關 檢測方法:- 精確度:±10% 輸入電壓:1.7 V ~ 5.5 V 電流 - 輸出:600mA 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-UFQFN 供應商設備封裝:10-UTQFN（1.4x1.8） 包裝:管件 |
| AD8213YRMZ | 制造商:Analog Devices 功能描述:IC - Dual Current Shunt Monitor |
| AD8213YRMZ-R7 | 功能描述:IC CURRENT MONITOR 0.25% 10MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)流/電流管理 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 功能:電流開關 檢測方法:- 精確度:±10% 輸入電壓:1.7 V ~ 5.5 V 電流 - 輸出:600mA 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-UFQFN 供應商設備封裝:10-UTQFN（1.4x1.8） 包裝:管件 |
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