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參數(shù)資料
| 型號： | OPA544T-1 |
| 元件分類： | 運算放大器 |
| 英文描述： | CONN JACK END LAUNCH PCB .187" G |
| 中文描述： | 高電壓，大電流運算放大器 |
| 文件頁數(shù)： | 6/8頁 |
| 文件大小： | 198K |
| 代理商： | OPA544T-1 |
6
OPA544
TYPICAL PERFORMANCE CURVES
(CONT)
At T
CASE
= +25
°
C, V
S
=
±
35V, unless otherwise noted.
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 V
S
–V
O
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 V
S
=
±
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, V
S
–V
O
. The power dissipated by the output transistor is
equal to the product of the output current and the voltage
across the conducting transistor, V
S
–V
O
. The Safe Operating
Area (SOA curve, Figure 2) shows the permissible range of
voltage and current.
FIGURE 1. Basic Circuit Connections.
5V/div
G = 1+ R
2
R
1
+
Z
L
V
O
R
2
10k
R
1
5k
0.1μF
10μF
OPA544
V–
–35V
+35V
V+
V
IN
+
10μF
0.1μF
200MV/div
SMALL SIGNAL RESPONSE
G = 3, C
L
= 1nF
2μs/div
FIGURE 2. Safe Operating Area.
1
2
5
10
|V
S
– V
O
| (V)
20
50
100
SAFE OPERATING AREA
10
4
1
O
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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| OPA547F | RxxP2xx Series - Econoline Unregulated DC-DC Converters; Input Voltage (Vdc): 12V; Output Voltage (Vdc): 15V; Power: 2W; EN 60950 certified, rated for 250VAC; UL-60950-1 / CSA C22.2 certified; 5.2kVDC Isolation for 1 Minute; Optional Continuous Short Circuit Protected; Wide Operating Temperature Range atfull 2 Watts Load, ?40??C to +85??C; Twin Chamber Transformer System; UL94V-0 Package Material; Efficiency to 80% |
| OPA547T | RxxP2xx Series - Econoline Unregulated DC-DC Converters; Input Voltage (Vdc): 12V; Output Voltage (Vdc): 15V; Power: 2W; EN 60950 certified, rated for 250VAC; UL-60950-1 / CSA C22.2 certified; 5.2kVDC Isolation for 1 Minute; Optional Continuous Short Circuit Protected; Wide Operating Temperature Range atfull 2 Watts Load, ?40??C to +85??C; Twin Chamber Transformer System; UL94V-0 Package Material; Efficiency to 80% |
| OPA548F | RxxP2xx Series - Econoline Unregulated DC-DC Converters; Input Voltage (Vdc): 12V; Output Voltage (Vdc): 3.3V; Power: 2W; EN 60950 certified, rated for 250VAC; UL-60950-1 / CSA C22.2 certified; 5.2kVDC Isolation for 1 Minute; Optional Continuous Short Circuit Protected; Wide Operating Temperature Range atfull 2 Watts Load, ?40??C to +85??C; Twin Chamber Transformer System; UL94V-0 Package Material; Efficiency to 80% |
| OPA548T | RxxP2xx Series - Econoline Unregulated DC-DC Converters; Input Voltage (Vdc): 12V; Output Voltage (Vdc): 3.3V; Power: 2W; EN 60950 certified, rated for 250VAC; UL-60950-1 / CSA C22.2 certified; 5.2kVDC Isolation for 1 Minute; Optional Continuous Short Circuit Protected; Wide Operating Temperature Range atfull 2 Watts Load, ?40??C to +85??C; Twin Chamber Transformer System; UL94V-0 Package Material; Efficiency to 80% |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OPA544TG3 | 功能描述:運算放大器 - 運放 Hi-Vltg Hi-Current Op Amp RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| OPA547 | 制造商:BB 制造商全稱:BB 功能描述:High-Voltage, High-Current OPERATIONAL AMPLIFIER |
| OPA547_02 | 制造商:BB 制造商全稱:BB 功能描述:High-Voltage, High-Current OPERATIONAL AMPLIFIER |
| OPA547_06 | 制造商:BB 制造商全稱:BB 功能描述:High-Voltage, High-Current OPERATIONAL AMPLIFIER |
| OPA547EVM | 功能描述:EVALUATION MODULE 制造商:texas instruments 系列:* 零件狀態(tài):在售 標(biāo)準(zhǔn)包裝:1 |
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