参数资料
型号: ISL28248FUZ-T7
厂商: Intersil
文件页数: 6/18页
文件大小: 0K
描述: IC OP AMP DUAL RRIO 4.5MHZ 8MSOP
标准包装: 1,500
放大器类型: 通用
电路数: 2
输出类型: 满摆幅
转换速率: 4 V/µs
增益带宽积: 4.5MHz
-3db带宽: 13MHz
电流 - 输入偏压: 1pA
电压 - 输入偏移: 1800µV
电流 - 电源: 900µA
电流 - 输出 / 通道: 75mA
电压 - 电源,单路/双路(±): 2.4 V ~ 5.5 V,±1.2 V ~ 2.75 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
供应商设备封装: 8-MSOP
包装: 带卷 (TR)
14
FN6337.4
September 21, 2010
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 in Equation 1:
where:
PDMAXTOTAL is the sum of the maximum power
dissipation of each amplifier in the package (PDMAX)
PDMAX for each amplifier can be calculated as shown in
Equation 2:
where:
TMAX = Maximum ambient temperature
θ
JA = Thermal resistance of the package
PDMAX = Maximum power dissipation of 1 amplifier
VS = Supply voltage (Magnitude of V+ and V-)
IMAX = Maximum supply current of 1 amplifier
VOUTMAX = Maximum output voltage swing of the
application
RL = Load resistance
T
JMAX
T
MAX
θ
JA xPDMAXTOTAL
()
+
=
(EQ. 1)
PD
MAX
2*V
S
I
SMAX
V
S
(
- V
OUTMAX )
V
OUTMAX
R
L
----------------------------
×
+
×
=
(EQ. 2)
ISL28148, ISL28248, ISL28448
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