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參數(shù)資料
| 型號： | OPA569 |
| 英文描述： | Power Op Amp. Output Signal Swings Within 200mV of Rails at 2A Output Current |
| 中文描述： | 功率運算放大器。輸出信號擺幅在200mV的Rails的輸出電流為2A |
| 文件頁數(shù)： | 20/23頁 |
| 文件大?。?/td> | 411K |
| 代理商： | OPA569 |
OPA569
SBOS264
20
www.ti.com
FIGURE 21. Single Power Amplifier Driving Bidirectional Current through a TEC using Asymmetrical Bipolar Power Supplies.
FIGURE 19. Grounded Anode LED Driver.
APPLICATION CIRCUITS
FIGURE 20. Bridge Tied Load Driver.
Luxeon Star-0
High-Power LED
12,
13
5
6
17,
18
(1)
14,
15
V
O
f
O
= 10kHz
V
IN
OPA569
R
1
49.9k
R
SHUNT
I
O
R
2
4.99k
4.99k
0.0033
μ
F
R
3
49.9k
–
5V
+1V
0V
0mA
–
100mA
0V
–
2.5V
Feedback for Constant Current,
1V Input per 100mA Output as Shown.
NOTE: (1) Bypass as recommended.
R
SET
R
M
I
M
=
+
I
TEC
475
V
SET
Optional to
monitor the
load current.
TEC
OPA569
1k
Heat/Cool
V
TEC
V
TEC
= 2 (V
IN
–
V
SET
)
+
–
5
12,
13
17,
18
14,
15
Current
Limit
Set
Current
Limit
Set
17,
18
5
6
3
3
12,
13
14,
15
19
I
MONITOR
R
SET
NOTE: (1) Bypass as recommended.
5V
(1)
5V
6
1k
V
IN
OPA569
V
M
(1)
OPA569
5
12,
13
17,
18
19
–
1.2V
14,
15
NOTE: Total Supply Must
be < 5.5V Cooling/Heating.
NOTE: (1) Bypass as recommended.
R
MONITOR
I
MONITOR
+3.3V
(1)
6
V
IN
TEC
I
L
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| OPA569AIDWP | 功能描述:運算放大器 - 運放 2A Pwr Op Amp Rail-To-Rail I/O 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 |
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