SG1532L [MICROSEMI]
PRECISION GENERAL-PURPOSE REGULATOR; 精密通用型稳压器
| 型号： | SG1532L |
| 厂家： | 
Microsemi |
| 描述： | PRECISION GENERAL-PURPOSE REGULATOR |
| 文件： | 总5页 (文件大小：103K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SG1532/SG2532/SG3532
PRECISION GENERAL-PURPOSE REGULATOR
DESCRIPTION
FEATURES
• Input voltage range of 4.5V to 50V
• 2.5V low noise reference
This monolithic integrated circuit is a versatile, general-purpose voltage
regulator designed as a substantially improved replacement for the popular
SG723 device. The SG1532 series regulators retain all the versatility of the
SG723 but have the added benefits of operation with input voltages as low as
4.5 volts and as high as 50 volts; a low noise, low voltage reference;
temperature compensated, low threshold current limiting; and protective
circuits which include thermal shutdown and independent current limiting of
both the reference and output voltages. A separate remote shutdown terminal
is included . In the dual-in-line package an open collector output is available
for low input-output differential applications.
• Independent shutdown terminal
• Improved line and load regulation
• 80mV current limit sense voltage
• Fully protected including thermal
shutdown
• Useful output current to 150mA
HIGH RELIABILITY FEATURES
-SG1532
These devices are available in both hermetic 14-pin cerdip and 10-pin TO-
96 packages. In the T-package, these units are interchangeable with the LAS-
1000 and LAS-1100 regulators. The SG1532 is rated for operation over the
ambient temperature range of -55°C to 125°C while the SG2532 and SG3532
are intended for industrial applications of 0°C to 70°C.
♦ Available to MIL-STD-883
♦ LMI level "S" processing available
BLOCK DIAGRAM
2/93 Rev 1.1 2/94
LINFINITY Microelectronics Inc.
Copyright 1994
11861 Western Avenue ∞ Garden Grove, CA 92841
(714) 898-8121 FAX: (714) 893-2570
1
∞
SG1532/SG2532/SG3532
ABSOLUTE MAXIMUM RATINGS (Note 1)
Pulse (50 ms) Input Voltage from VIN to V- .......................
Current from VREF..........................................................
25mA
50V
Continuous Input Voltage from VIN to V-............................ 40V
Input to Output Voltage Differential................................... 40V
Maximum Output Current ........................................... 250mA
Current from VZ (J, L-Package only)............................. 100mA
Operating Junction Temperature
Hermetic (T, J, L-Packages).......................................
Storage Temperature Range ..........................
Lead Temperature (Soldering, 10 Seconds) .................
150°C
-65°C to 150°C
300°C
Note 1. Exceeding these ratings could cause damage to the device.
THERMAL DATA
J Package:
Note A. Junction Temperature Calculation: TJ = TA + (PD x θJA).
Thermal Resistance-Junction to Case, θJC .................. 30°C/W
Thermal Resistance-Junction to Ambient, θJA .............. 80°C/W
T Package:
Thermal Resistance-Junction to Case, θJC .................. 25°C/W
Thermal Resistance-Junction to Ambient, θJA ........... 130°C/W
L Package:
Note B. The above numbers for θJC are maximums for the limiting
thermal resistance of the package in a standard mount-
ing configuration. The θJA numbers are meant to be
guidelines for the thermal performance of the device/pc-
board system. All of the above assume no ambient
airflow.
Thermal Resistance-Junction to Case, θJC .................. 35°C/W
Thermal Resistance-Junction to Ambient, θJA ........... 120°C/W
RECOMMENDED OPERATING CONDITIONS (Note 2)
Input Voltage Range
Reference Current ........................................................
5mA
SG1532/SG2532 ................................................. 5V to 45V
SG3532 .............................................................. 5V to 36V
Output Current Range ....................................... 1mA to 100mA
Zener Current (J & L-Packages only) ........................... 20mA
Operating Ambient Temperature Range
SG1532 ........................................................ -55°C to 125°C
SG2532/SG3532 .............................................. 0°C to 70°C
Note 2. Range over which the device is functional.
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, these specifications apply over the operating ambient temperatures for SG1532 with -55°C ≤ TA ≤ 125°C, SG2532 with
0°C ≤ TA ≤ 70°C, SG3532 with 0°C≤ TA ≤ 70°C, VIN = 10V, VOUT = 5V, and IOUT = 1mA. Low duty cycle pulse testing techniques are used which maintains
junction and case temperatures equal to the ambient temperature.)
SG1532/SG2532
Min. Typ. Max. Min. Typ. Max.
SG3532
Parameter
Test Conditions
Units
Input Voltage Range
TA = 25°C
4.5
4.7
2.0
50
50
38
4.5
4.7
2.0
40
40
38
V
V
V
mA
V
Output Voltage Range
Max Output Current
R
SC = 0, VOUT = 0, TA = 25°C
OUT = 100mA, TA = 25°C
TA = 25°C
175 250
175 250
Min (VIN - VOUT
)
I
1.7
2.40 2.50 2.60 2.40 2.50 2.60
2.35 2.65 2.35 2.65
0.005 0.015
15 25
2.0
1.7
2.0
Reference Voltage
V
V
Temperature Stability (Note 4)
Ref Short Circuit Current
Line Regulation (Note 3)
0.005 0.015 %/°C
V
REF = 0, TA = 25°C
15
25
mA
%/V
%/V
8V ≤ VIN ≤ 40V
0.005 0.01
0.01 0.02
0.002 0.004
0.002 0.005
0.005 0.02
0.01 0.03
0.002 0.004 %/mA
8V ≤ VIN ≤ 20V, IOUT = 25mA
1mA ≤ IOUT ≤ 25mA
1mA ≤ IOUT ≤ 100mA
RSC = 100Ω, VOUT = 0V
Load Regulation (Note 3)
0.002 0.005 %/mA
Current Limit Sense Voltage
Shutdown Voltage Threshold
Shutdown Source Current
Zener Voltage
0.06 0.08 0.10 0.06 0.08 0.10
0.40 0.70 1.0 0.40 0.70 1.0
100 200 300 100 200 300
V
V
µA
V
mA
mV
VOUT = high
I
OUT = 10mA, (J and L-Packages only)
6.0
6.4
2.5
2.0
7.2
3.5
10
6.0
6.4
2.5
2.0
7.2
3.5
15
Standby Current
VIN = 40V
Error Amplifier Offset Voltage
Error Amplifier Input Bias
Current
4.0
15
4.0
20
µA
2/93 Rev 1.1 2/94
LINFINITY Microelectronics Inc.
Copyright 1994
11861 Western Avenue ∞ Garden Grove, CA 92841
(714) 898-8121 FAX: (714) 893-2570
2
∞
SG1532/SG2532/SG3532
ELECTRICAL CHARACTERISTICS(continued)
SG1532/SG2532
Min. Typ. Max. Min. Typ. Max.
SG3532
Parameter
Open Loop Gain
Test Conditions
Units
TA = 25°C
66
68
66
60
68
66
50
0.3
175
dB
dB
µVRMS
Ripple Rejection
f = 120Hz, TA = 25°C
10Hz ≤ f ≤ 100KHz, TA = 25°C
VIN = 30V, TA = 125°C
Output Noise (Note 4)
Long Term Stability (Note 4)
Thermal Shutdown (Note 4)
50
0.3
1.0
1.0 %/Khr
175
°C
Note 3. Applies for constant junction temperature. Temperature drift effects must be taken into account separately when the unit is operating under
conditions of high dissipation.
Note 4. These parameters, although guaranteed, are not tested in production.
CHARACTERISTIC CURVES
FIGURE 1.
FIGURE 2.
MINIMUM INPUT-OUTPUT VOLTAGE
STANDBY CURRENT
FIGURE 3.
FIGURE 4.
CURRENT LIMITING
RIPPLE REJECTION
2/93 Rev 1.1 2/94
LINFINITY Microelectronics Inc.
Copyright 1994
11861 Western Avenue ∞ Garden Grove, CA 92841
(714) 898-8121 FAX: (714) 893-2570
3
∞
SG1532/SG2532/SG3532
CHARACTERISTIC CURVES (continued)
FIGURE 5.
FIGURE 6.
FREQUENCY RESPONSE
TRANSIENT RESPONSE
APPLICATION INFORMATION
FIGURE 8 - HIGH CURRENT REGULATOR WITH FOLDBACK
CURRENT LIMITING AND REMOTE SHUTDOWN
FIGURE 7 - 90% EFFICIENT LINEAR REGULATOR
Output Voltage = 5V
Min (VIN-VOUT) at 2A = 0.4V
Load Reg 0-2A = 20mV
Max Output Current = 3A
Line Reg 6-30V = 10 mV
Output Voltage = 5V
Line Reg 10-30V = 3mV
Load Reg 0-5A = 17mV
Short Circuit Current = 1.8A
Max Output Current = 8A
Min VIN at No Load = 6.9V
Min VIN at 5A = 8.2V
Notes:
Note:
For output voltages above 8V and load currents
which allow PNP base current to be limited to
25mA, the internal zener may be used, eliminat-
ing the need for the two external diodes and the
* 100Ω surge limiting resistor should be used for
output voltages above 8V.
divider on VREF
.
RSC canbeeliminatedifthe200mAcurrentlimiton
VOUT is adequate. Overall current limiting is
dependent upon PNP Beta. For greater accu-
racy, load currrent may be sensed in the ground
line.
2/93 Rev 1.1 2/94
LINFINITY Microelectronics Inc.
Copyright 1994
11861 Western Avenue ∞ Garden Grove, CA 92841
(714) 898-8121 FAX: (714) 893-2570
4
∞
SG1532/SG2532/SG3532
APPLICATION INFORMATION
FIGURE 9 - HIGH EFFICIENCY LOW VOLTAGE REGULATOR
FIGURE 10 - BASIC LOW CURRENT REGULATOR
Sense Voltage
R1
R2
Output Voltage = 5V
Max Output Current = 9A
Min VIN at 5A = 7.0V
Line Reg 7-20V = 10mV
Load Reg 0-5A = 25mV
Constant Current Limiting
ISC
R3
=
=
VOUT = VREF 1+
RSC
R1 R2
CC = 1000 pF
R1+R2
IOUT ≤ 100mA
CONNECTION DIAGRAMS & ORDERING INFORMATION (See Notes Below)
Ambient
Temperature Range
Package
Part No.
Connection Diagram
14-PIN CERAMIC DIP
J - PACKAGE
SG1532J/883B
SG1532J/DESC
SG1532J
SG2532J
SG3532J
-55°C to 125°C
-55°C to 125°C
-55°C to 125°C
0°C to 70°C
1
2
3
4
5
6
7
14
N.C.
N.C.
13
CURRENT LIMIT
FREQ. COMPENSATION
12
11
10
9
VIN
CURRENT SENSE
INVERTING INPUT
VC
NON-INVERTING INPUT
VOUT
0°C to 70°C
VREF
V-
VZ
8
SHUTDOWN
(Notes 3 & 4)
CURRENT LIMIT
10
10-PIN METAL CAN
T - PACKAGE
SG1532T/883B
SG1532T/DESC
SG1532T
SG2532T
SG3532T
-55°C to 125°C
-55°C to 125°C
-55°C to 125°C
0°C to 70°C
CURRENT SENSE
INVERTING INPUT
1
9
FREQ. COMPENSATION
2
3
8
VIN & VC
0°C to 70°C
NON-INVERTING
INPUT
7
SHUTDOWN
4
6
5
VOUT
VREF
V-
20-PIN CERAMIC
LEADLESS CHIP CARRIER
L- PACKAGE
SG1532L/883B
SG1532L
-55°C to 125°C
-55°C to 125°C
1. N.C.
3
2
1
20 19
11. N.C.
12. SHUTDOWN
13. VZ
14. N.C.
15. VOUT
16. N.C.
17. VC
18. VIN
2. CURRENT LIMIT
3. CURRENT SENSE
4. N.C.
5. INVERTING INPUT
6. N.C.
4
18
17
16
15
14
5
6
7
8
7. N. I. INPUT
8. VREF
9. N.C.
10. V-
19. N.C.
20. FREQ. COMP.
9
10 11 12 13
Note 1. Contact factory for JAN and DESC product availablity.
2. All packages are viewed from the top.
Note 3. VZ output is not available in T-package.
4. Pin 5 is connected to case.
2/93 Rev 1.1 2/94
LINFINITY Microelectronics Inc.
Copyright 1994
11861 Western Avenue ∞ Garden Grove, CA 92841
5
(714) 898-8121 ∞ FAX: (714) 893-2570
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