参数资料
| 型号： | OPA544FKTTTG3 |
| 厂商： | Texas Instruments |
| 文件页数： | 8/11页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP PWR 1.4MHZ SGL D2PAK-5 |
| 标准包装： | 50 |
| 放大器类型： | 功率 |
| 电路数： | 1 |
| 转换速率： | 8 V/µs |
| 增益带宽积： | 1.4MHz |
| 电流 - 输入偏压： | 15pA |
| 电压 - 输入偏移： | 1000µV |
| 电流 - 电源： | 12mA |
| 电流 - 输出 / 通道： | 4A |
| 电压 - 电源，单路/双路(±)： | 20 V ~ 70 V，±10 V ~ 35 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-263-6，D²Pak（5 引线+接片），TO-263BA |
| 供应商设备封装： | DDPAK/TO-263-5 |
| 包装： | 带卷 (TR) |
6
OPA544
TYPICAL PERFORMANCE CURVES (CONT)
APPLICATIONS INFORMATION
Figure 1 shows the OPA544 connected as a basic non-
inverting amplifier. The OPA544 can be used in virtually
any op amp configuration. Power supply terminals should be
bypassed with low series impedance capacitors. The tech-
nique shown, using a ceramic and tantalum type in parallel
is recommended. Power supply wiring should have low
series impedance and inductance.
The safe output current decreases as VS–VO increases. Output
short-circuits are a very demanding case for SOA. A short-circuit
to ground forces the full power supply voltage (V+ or V–) across
the conducting transistor. With VS = ±35V the safe output current
is 1.5A (at 25C). The short-circuit current is approximately 4A
which exceeds the SOA. This situation will activate the thermal
shutdown circuit in the OPA544. For further insight on SOA,
consult Application Bulletin AB-039.
SAFE OPERATING AREA
Stress on the output transistors is determined by the output
current and the voltage across the conducting output transis-
tor, VS–VO. The power dissipated by the output transistor is
equal to the product of the output current and the voltage
across the conducting transistor, VS–VO. The Safe Operating
Area (SOA curve, Figure 2) shows the permissible range of
voltage and current.
FIGURE 1. Basic Circuit Connections.
At T
CASE = +25°C, VS = ±35V, unless otherwise noted.
5V/div
G = 1+
= 3
R
2
R
1
+
Z
L
V
O
R
2
10k
R
1
5k
0.1F
10F
OPA544
V–
–35V
+35V
V+
V
IN
+
10F
0.1F
200MV/div
SMALL SIGNAL RESPONSE
G = 3, C
L = 1nF
2s/div
FIGURE 2. Safe Operating Area.
12
5
10
|V
S – VO|
(V)
20
50
100
SAFE OPERATING AREA
10
4
1
Output
Current
(A)
0.4
0.1
Current-Limited
T
C = 25°C
T
C = 125°C
T
C = 85°C
Output current may
be limited to less
than 4A—see text.
CURRENT LIMIT
The OPA544 has an internal current limit set for approxi-
mately 4A. This current limit decreases with increasing
junction temperature as shown in the typical curve, Current
Limit vs Temperature. This, in combination with the thermal
shutdown circuit, provides protection from many types of
overload. It may not, however, protect for short-circuit to
ground, depending on the power supply voltage, ambient
temperature, heat sink and signal conditions.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| OPA544FKTWT | 制造商:Texas Instruments 功能描述: |
| OPA544T | 功能描述:运算放大器 - 运放 Hi-Vltg Hi-Current Op Amp RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| OPA544T | 制造商:BURR-BROWN 功能描述:OP AMP HIGH VOLT 2A TO-220-5 544 制造商:Texas Instruments 功能描述:OP AMP HIGH VOLT 2A TO-220-5 544 制造商:Texas Instruments 功能描述:OP AMP, HIGH VOLT 2A, TO-220-5, 544 |
| OPA544T-1 | 制造商:TI 制造商全称:Texas Instruments 功能描述:High-Voltage, High-Current OPERATIONAL AMPLIFIER |
| OPA544TG3 | 功能描述:运算放大器 - 运放 Hi-Vltg Hi-Current Op Amp RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
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