OM7604ST [ETC]
ISOLATED HERMETIC TO-257AA ADJUSTABLE VOLTAGE REGULATOR; 隔离HERMETIC TO- 257AA可调稳压型号: | OM7604ST |
厂家: | ETC |
描述: | ISOLATED HERMETIC TO-257AA ADJUSTABLE VOLTAGE REGULATOR |
文件: | 总4页 (文件大小:48K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
OM7604ST
ISOLATED HERMETIC TO-257AA
ADJUSTABLE VOLTAGE REGULATOR
Three Terminal, Adjustable Voltage, 3.0 Amp
Precision Positive Regulator In A Hermetic
JEDEC TO-257AA Package
FEATURES
• Isolated Hermetic Package, JEDEC TO-257AA Outline
• Reference Voltages Set To ±2% (±1% Available)
• Built-In Thermal Overload Protection
• Short Circuit Current Limiting
• Product Is Available Screened To MIL-STD-883
• Similar To Industry Standard P/N LM150A
DESCRIPTION
These three terminal positive regulators are supplied in a hermetically sealed metal
package whose outline is similar to the industry standard TO-220 plastic package. All
protective features are designed into the circuit, including thermal shutdown, current
limiting and safe-area control. With heat sinking, they can deliver over 3.0 amps of
output current. These units feature 2% initial voltage tolerance, 0.3% load regulation
and 0.01% line regulation.
ABSOLUTE MAXIMUM RATINGS @ 25°C
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+35V
Operating Junction Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55°C to +150°C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-65° to +150°C
Typical Power/Thermal Characteristics:
Rated Power @ 25°C
TC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25W
TA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3W
Thermal Resistance
3.3
qJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.2°C/W
qJA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42°C/W
Note: For ±1% device, add letter "A" in front of part number (e.g. OMA 7604ST).
4 11 R4
Supersedes 1 07 R3
3.3 - 141
OM7604ST
ELECTRICAL CHARACTERISTICS -55°C TA 125°C (Note 1) unless otherwise specified
Test
Symbol
Conditions
Limits
Unit
Min.
Max.
Reference Voltage
VREF
IOUT = 10mA
TA = 25°C
1.20
1.30
V
3.0V (VIN - VOUT
10mA IOUT 3.0A (Note 2)
3.0V (VIN - VOUT 35V,
IOUT = 10mA, TJ = 25°C
3.0V (VIN - VOUT 35V,
OUT = 10mA
10mA IOUT 3.0A,
)
35V, P 30W
1.20
1.30
0.01
0.05
17.5
50
V
%/V
%/
Line Regulation
(Note 2)
³VOUT
³VIN
)
)
I
Load Regulation
(Note 2)
³VOUT
³IOUT
mV
mV
%
VOUT 5.0A, TJ = 25°C
10mA IOUT 3.0A,
VOUT 5.0A
10mA IOUT 3.0A,
VOUT 5.0A, TJ = 25°C
10mA IOUT 3.0A,
VOUT 5.0A
0.35
1.0
%
Thermal Regulation
Ripple Rejection
(Note 3)
20ms pulse, TA =25°C
VOUT = 10V, f = 120Hz
CADJ = 10µF
0.01
%/W
dB
³VIN
³VREF
IAdj
66
Adjust Pin Current
Adjust Pin
100
5.0
µA
µA
³IAdj
10mA IOUT 3.0A, IOUT = 10mA
Current Change
3.0V (VIN - VOUT
(VIN - VOUT) = 35V
(VIN - VOUT 10V
(VIN - VOUT) = 30V
) 35V
Miminum Load Current
Current Limit
IMIN
ICL
5.0
mA
A
)
3.0
0.3
A
Notes:
1. Unless otherwise specified, these specifications apply for (VIN - VOUT) = 5.0V and IOUT = 1.5A. Although power
dissipation is internally limited, these characteristics are applicable for power dissipation up to 30W.
2. Regulation is measured at a constant junction temperature using a pulse technique. Changes in output voltage
due to heating effects are covered under the specification for thermal regulation.
3. Guaranteed if not tested to the limits specified.
3.3
3.3 - 142
OM7604ST
TYPICAL PERFORMANCE CHARACTERISTICS
Load Regulation
Current Limit
Adjustment Current
1.0
0
65
60
6
4
2
0
T = -55°C
J
T = 25°C
J
55
50
45
40
0.1
IOUT = 3A
T = 150°C
J
0.2
0.3
0.4
0.5
35
30
-75
-50 -25
0
25 50 75 100125 150
-25
25
75
125
-75
0
5 10 15 20 25 30 35
Temperature (°C)
Temperature (°C)
Input-Output Differential (V)
Dropout Voltage
Temperature Stability
Minimum Operating Current
3
1.27
1.26
1.25
1.24
1.23
5
4
∆VOUT = 100 mV
T = 150°C
J
2.5
IOUT = 3 A
IOUT = 2 A
T = 25°C
3
2
1
0
2
J
IOUT = 20 mA
1.5
1
T = -55°C
J
0.5
-75
-50 -25 -0 25 50 75 100 125 150
0
5
10 15 20 25 30 35 40
-25
25
75
125
Temperature (°C)
Temperature (°C)
Input-Output Diffential(V)
Ripple Rejection
Ripple Rejection
Ripple Rejection
100
80
100
80
CADJ = 10µF
CADJ = 10µF
80
CADJ = 10µF
CADJ = 0
70
60
60
40
CADJ = 0
60
CADJ = 0
40
20
0
V
IN - VOUT = 5V
VIN = 15V
V
IN = 15V
VOUT = 500mA
VOUT = 10V
50
40
20
0
VOUT = 10V
f = 120Hz
f = 120Hz
TCASE = 25°C
I
OUT = 500mA
T = 25°C
J
5
10 15 20 25 30 35
Output Voltage (V)
0
10 100
1k 10k 100k 1M
Frequency (Hz)
0.1
1
10
Output Current (A)
Output Impedance
Line Transient Response
Load Transient Response
1.5
1.5
3.3
10
1
COUT = 0 CADJ = 0
V
IN = 15V
OUT = 10V
IOUT = 500mA
V
OUT = 10V
CADJ = 0
COUT = 0
1
0.5
0
CADJ = 0
COUT = 0
1
V
IOUT = 50mA
COUT = 1µF CADJ = 10µF
0.5
T = 25°C
J
0
0.1
-0.5
-1
-1.5
VIN = 15V, VOUT = 10V
COUT = 1µF
CADJ = 10µF
Preload = 100mA
-0.5
T = 25°C
J
0.01
0.001
CADJ = 10µF
COUT = 10µF
-1
1.5
1
0.5
0
1
0.5
0
0.0001
0
10
20
30
40
0
10
20
30
40
100
1k
10k 100k 1M
10
Frequency (Hz)
Time (µs)
Time (µs)
3.3 - 143
OM7604ST
TYPICAL APPLICATIONS
1.2 - 2.5V Adjustable Regulator
Improving Ripple Rejection
Adjustable Current Limiter
0.5
5V
+
VIN
VOUT
VOUT
VIN
1µF
VIN
VOUT
VIN
VOUT
+
R1
121
1%
1K
500
Adj
Adj
Adj
R1
240
R2
365
1%
+
C1
10µf*
+
+
C2
l
1µF
C1*
1µF
*C1 improves ripple rejection,
C should be small compared to R2.
R2
5k
X
+
*Needed if device is far
from filter capacitors.
Optional - improves
transient response.
l
R2
+
+
V
OUT = 1.25V(1+
)
R1
Precision High Current Reference
Remote Sensing
+10V
Rp (Max Drop 300mV)
VIN
VIN
VOUT
VIN
VIN
VOUT
5V
Adj
6
Adj
15k
1%
2k
+ 3
7
4
VIN
2k
2
-
7
LT 1001
6
25
2
LT 301A
+
-
RL
1k
5µF
25
2.5V
4.99k
1%
3
1
121
LT 1009
8
4
100pF
+
-
365
RET
Return
MECHANICAL OUTLINE
PIN CONNECTION
.200
.190
.420
.410
.045
.035
Tab
.665
.645
.150
.140
.537
.527
.430
.410
.038 MAX.
.005
3.3
.750
.500
1
2 3
.120 TYP.
.100 TYP.
.035
.025
Front View
Pin 1: Adjust
Pin 2: VOUT
Pin 3: VIN
NOTES
Tab:
Isolated
• Case is metal/hermetically sealed
• Isolated Tab
205 Crawford Street, Leominster, MA 01453 USA (508) 534-5776 FAX (508) 537-4246
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