參數(shù)資料
型號： THS4227PWP
廠商： TEXAS INSTRUMENTS INC
元件分類： 音頻／視頻放大
英文描述： 3 CHANNEL, VIDEO PREAMPLIFIER, PDSO16
封裝： POWERPAD, PLASTIC, TSSOP-16
文件頁數(shù)： 14/32頁
文件大?。?/td> 411K
代理商： THS4227PWP
THS4221, THS4225
THS4222, THS4226
THS4223, THS4227
SLOS399C – AUGUST 2002 – REVISED JANUARY 2003
www.ti.com
21
P
Dmax +
Tmax–TA
q
JA
where:
PDmax is the maximum power dissipation in the amplifier (W).
Tmax is the absolute maximum junction temperature (°C).
TA is the ambient temperature (°C).
θJA = θJC + θCA
θJC is the thermal coefficient from the silicon junctions to the
case (
°C/W).
θCA is the thermal coefficient from the case to ambient air
(
°C/W).
For systems where heat dissipation is more critical, the
THS4222 family is offered in MSOP and TSSOP with
PowerPAD. The thermal coefficient for the MSOP
PowerPAD package is substantially improved over the
traditional SOIC. Maximum power dissipation levels are
depicted in the graph for the two packages. The data for
the DGN package assumes a board layout that follows the
PowerPAD layout guidelines referenced above and
detailed in the PowerPAD application notes in the
Additional Reference Material section at the end of the
data sheet.
2
1.5
1
0
–40
–20
0
20
–
Maximum
Power
Dissipation
–
W
2.5
3
3.5
40
60
80
TA – Ambient Temperature – °C
P
D
8-Pin DGN Package
θJA = 170°C/W for 8-Pin SOIC (D)
θJA = 58.4°C/W for 8-Pin MSOP (DGN)
ΤJ = 150°C, No Airflow
Figure 38. Maximum Power Dissipation vs
Ambient Temperature
0.5
8-Pin D Package
When determining whether or not the device satisfies the
maximum power dissipation requirement, it is important to
consider not only quiescent power dissipation, but also
dynamic power dissipation. Often maximum power
dissipation is difficult to quantify because the signal pattern
is inconsistent, but an estimate of the RMS power
dissipation can provide visibility into a possible problem.
DESIGN TOOLS
Evaluation Fixtures, Spice Models, and
Applications Support
Texas Instruments is committed to providing its customers
with the highest quality of applications support. To support
this goal, evaluation boards have been developed for the
THS4222 family of operational amplifiers. The boards are
easy to use, allowing for straight-forward evaluation of the
device. These evaluation boards can be ordered through
the Texas Instruments web site, www.ti.com, or through
your local Texas Instruments sales representative.
Schematics for the two evaluation boards are shown
below with their default component values. Unpopulated
footprints are shown to provide insight into design
flexibility.
Figure 39. THS4222 EVM Circuit
Configuration
VS+
PwrPad
U1:A
R6
R3
J3
R1
R2
R6
R4
J1
J2
TP1
U1:B
R7
R10
J5
R8
R9
R11
R12
J6
J4
+
C6
VS–
J7
C7
C9
C5
VS+
J9
+
FB2
C10
C8
FB1
VS–
GND
VS+
VS–
相關(guān)PDF資料
PDF描述
THS4227DR 3 CHANNEL, VIDEO PREAMPLIFIER, PDSO16
THS4227D 3 CHANNEL, VIDEO PREAMPLIFIER, PDSO16
THS4225DGNRG4 1 CHANNEL, VIDEO PREAMPLIFIER, PDSO8
THS4221DGNRG4 1 CHANNEL, VIDEO PREAMPLIFIER, PDSO8
THS4226DGQRG4 1 CHANNEL, VIDEO PREAMPLIFIER, PDSO10
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
THS4271 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW NOISE, HIGH SLEW RATE, UNITY GAIN STABLE VOLTAGE FREEBACK AMPLIFIER
THS4271D 功能描述:高速運(yùn)算放大器 Super-Fast Ultra-Low Distortion RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
THS4271D 制造商:Texas Instruments 功能描述:OP AMP HIGH SPEED VFB 4271 SOIC8
THS4271DG4 功能描述:高速運(yùn)算放大器 Super-Fast Ultra-Low Distortion RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
THS4271DGK 功能描述:高速運(yùn)算放大器 Super-Fast Ultra-Low Distortion RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
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