参数资料
型号: ISL28005FH100Z-T7
厂商: Intersil
文件页数: 5/15页
文件大小: 0K
描述: IC OPAMP CURRENT SENSE SOT23-5
应用说明: ISL28005/06 Application Note
产品培训模块: ISL28005-6 Overview
Solutions for Industrial Control Applications
标准包装: 1
放大器类型: 电流检测
电路数: 1
转换速率: 0.76 V/µs
-3db带宽: 110kHz
电流 - 输入偏压: 4.7µA
电压 - 输入偏移: 1200µV
电流 - 电源: 50µA
电流 - 输出 / 通道: 8.7mA
电压 - 电源,单路/双路(±): 2.7 V ~ 28 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: SC-74A,SOT-753
供应商设备封装: SOT-23-5
包装: 标准包装
其它名称: ISL28005FH100Z-T7DKR
ISL28005
13
FN6973.5
October 24, 2013
Overall Accuracy (VOA %)
VOA is defined as the total output accuracy Referred-to-Output
(RTO). The output accuracy contains all offset and gain errors, at
a single output voltage. Equation 2 is used to calculate the %
total output accuracy.
where
VOUT Actual = VSENSE x GAIN
Example: Gain = 100, For 100mV VSENSE input we measure
10.1V. The overall accuracy (VOA) is 1% as shown in Equation 3.
Power Dissipation
It is possible to exceed the +150°C maximum junction
temperatures under certain load and power supply conditions. It
is therefore important to calculate the maximum junction
temperature (TJMAX) for all applications to determine if power
supply voltages, load conditions, or package type need to be
modified to remain in the safe operating area. These parameters
are related using Equation 4:
where:
PDMAXTOTAL is the sum of the maximum power dissipation of
each amplifier in the package (PDMAX)
PDMAX for each amplifier can be calculated using Equation 5:
where:
TMAX = Maximum ambient temperature
θJA = Thermal resistance of the package
PDMAX = Maximum power dissipation of 1 amplifier
VCC = Total supply voltage
IqMAX = Maximum quiescent supply current of 1 amplifier
VOUTMAX = Maximum output voltage swing of the application
RL = Load resistance
FIGURE 30. TYPICAL APPLICATION CIRCUIT
gmHI
gmLO
1.35V
+
-
OUT
VCC
I = 2.86A
GND
RS
RS-
RP
(1m
TO
0.1)
0.1VDC
TO
28VDC
+
-
CD
LOAD
CM
2.7VDC
TO
28VDC
RS+
V
OA
100
V
OUTactua l
V
OUT
ected
exp
V
OUT
ected
exp
------------------------------------------------------------------------------------
×
=
(EQ. 2)
(EQ. 3)
V
OA
100
10.1
10
10
------------------------
×
1percent
==
T
JMAX
T
MAX
θ
JAxPDMAXTOTAL
+
=
(EQ. 4)
PD
MAX
V
S
I
qMAX
V
S
(
- V
OUTMAX )
V
OUTMAX
R
L
----------------------------
×
+
×
=
(EQ. 5)
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