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OPA548F Datasheet(PDF) 14 Page - Texas Instruments

Part # OPA548F
Description  High-Voltage, High-Current OPERATIONAL AMPLIFIER
PDF  24 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

OPA548F Datasheet(HTML) 14 Page - Texas Instruments

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OPA548
14
SBOS070B
www.ti.com
G = 1 +
= 10
9k
Ω
1k
Ω
9k
Ω
1k
Ω
OPA548
+30V
+5V
+5V
0.12V to 2.5V
0V to 4.75V
Output
Adjust
V+
5
6
Thermal
Shutdown Status
NOTES: (1) For V
O ≤ 0V, V– ≤ –1V.
(2) Optional: Improves noise
immunity.
(LED)
74HCT04
R
≥ 250Ω
E/S
V
O = 1.2V to 25V
(1)
I
O = 0 to 5A
7
4
3
1
2
V–
I
LIM
10.5k
Ω
499
Ω
10k
Ω
Current
Limit
Adjust
1k
Ω
20k
Ω
0.01µF(2)
V–
13750
Ω
R
CL
I
LIM
0.01µF
(Optional, for noisy
environments)
4.75V
I
O =
15000 (4.75V)
13750
Ω + R
CL
V
O = VCL (1 + R2/R1)
V–
V+
V
CL
V
CL =
= 2V
Desired V
O = 20V,
R
1 = 1kΩ and R2 = 9kΩ
G =
= 10
20
2
For Example:
10k
Ω • 4.75V
(10k
Ω + 13750Ω)
If I
LIM = 3A, RCL = 10kΩ
R
2
R
1
Uses voltage developed at I
LIM pin
as a moderately accurate reference
voltage.
FIGURE 16. Resistor-Controlled Programmable Power Supply.
FIGURE 15. Voltage Source.



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