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参数资料
| 型号： | ISL59110IEZ-EVALZ |
| 厂商： | Intersil |
| 文件页数： | 10/10页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR ISL59110IEZ |
| 标准包装： | 1 |
| 系列： | * |
9
FN6104.5
February 12, 2014
Output Drive Capability
The ISL59110 does not have internal short circuit protection
circuitry. If the output is shorted indefinitely, the power
dissipation could easily overheat the die or the current could
eventually compromise metal integrity. Maximum reliability is
maintained if the output current never exceeds ±40mA. This
limit is set by the design of the internal metal interconnect.
Note that in transient applications, the part is robust.
Short circuit protection can be provided externally with a
back match resistor in series with the output placed close as
possible to the output pin. In video applications this would be
a 75
Ω resistor and would provide adequate short circuit
protection to the device. Care should still be taken not to
stress the device with a short at the output.
Power Dissipation
With the high output drive capability of the ISL59110, it is
possible to exceed the +125°C absolute maximum junction
temperature under certain load current conditions.
Therefore, it is important to calculate the maximum junction
temperature for an application to determine if load conditions
or package types need to be modified to assure operation of
the amplifier in a safe operating area.
The maximum power dissipation allowed in a package is
determined according to Equation 1:
Where:
TJMAX = Maximum junction temperature
TAMAX = Maximum ambient temperature
ΘJA = Thermal resistance of the package
The maximum power dissipation actually produced by an IC
is the total quiescent supply current times the total power
supply voltage, plus the power in the IC due to the load, or:
for sourcing:
for sinking:
Where:
VS = Supply voltage
ISMAX = Maximum quiescent supply current
VOUT = Maximum output voltage of the application
RLOAD = Load resistance tied to ground
ILOAD = Load current
By setting the two PDMAX equations equal to each other, we
can solve the output current and RLOAD to avoid the device
overheat.
Power Supply Bypassing Printed Circuit Board
Layout
As with any modern operational amplifier, a good printed
circuit board layout is necessary for optimum performance.
Lead lengths should be as short as possible. The power
supply pin must be well bypassed to reduce the risk of
oscillation. For normal single supply operation, a single
4.7F tantalum capacitor in parallel with a 0.1F ceramic
capacitor from VS+ to GND will suffice.
Printed Circuit Board Layout
For good AC performance, parasitic capacitance should be
kept to a minimum. Use of wire wound resistors should be
avoided because of their additional series inductance. Use
of sockets should also be avoided if possible. Sockets add
parasitic inductance and capacitance that can result in
compromised performance.
PD
MAX
T
JMAX
T
AMAX
–
Θ
JA
---------------------------------------------
=
(EQ. 1)
PD
MAX
V
S
I
SMAX
V
S
V
OUT
–
()
+
×
V
OUT
R
L
----------------
×
=
(EQ. 2)
PD
MAX
V
S
I
SMAX
V
OUT
V
S
–
()
+
×
I
LOAD
×
=
(EQ. 3)
ISL59110
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相关代理商/技术参数 |
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|---|---|
| ISL59110IEZ-T7 | 功能描述:IC VIDEO DRIVER 8MHZ R-R SC70-6 RoHS:是 类别:集成电路 (IC) >> 线性 - 放大器 - 视频放大器和频缓冲器 系列:- 标准包装:1,000 系列:- 应用:驱动器 输出类型:差分 电路数:3 -3db带宽:350MHz 转换速率:1000 V/µs 电流 - 电源:14.5mA 电流 - 输出 / 通道:60mA 电压 - 电源，单路/双路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安装类型:表面贴装 封装/外壳:20-VFQFN 裸露焊盘 供应商设备封装:20-QFN 裸露焊盘（4x4） 包装:带卷 (TR) |
| ISL59110IEZ-T7R5235 | 制造商:Intersil Corporation 功能描述:8MHz Rail-to-Rail Composite Video Driver 制造商:Intersil Corporation 功能描述:Composite video signal driver |
| ISL59111 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:8MHz Rail-to-Rail Composite Video Driver |
| ISL59111_07 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:8MHz Rail-to-Rail Composite Video Driver |
| ISL59111IIZ | 制造商:Intersil Corporation 功能描述:IC SM VIDEO DRIVER RR/O 8MHZ |
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