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SG7800A/SG7800 SERIES
SG7800A/SG7800
POSITIVE FIXED VOLTAGE REGULATOR
DESCRIPTION
The SG7800A/SG7800 series of positive regulators offer self contained, fixed-voltage capability with up to 1.5A of load current and input voltage up to 50V (SG7800A series only). These units feature a unique on-chip trimming system to set the output voltages to within 1.5% of nominal on the SG7800A series,2.0% on the SG7800 series. The SG7800A versions also offer much improved line and load regulation characteristics. Utilizing an improved Bandgap reference design, problems have been eliminated that are normally associated with the Zener diode references, such as drift in output voltage and large changes in the line and load regulation. All protective features of thermal shutdown, current limiting, and safe-area control have been designed into these units and since these regulators require only a small output capacitor for satisfactory performance, ease of application is assured. Although designed as fixed-voltage regulators, the output voltage can be increased through the use of a simple voltage divider. The low quiescent drain current of the device insures good regulation when this method is used. Product is available in hermetically sealed TO-257, TO-3, TO39 and LCC packages.
FEATURES
* * * * * * * * Output voltage set internally to 1.5% on SG7800A Input voltage range to 50V max. on SG7800A Two volt input-output differential Excellent line and load regulation Foldback current limiting Thermal overload protection Voltages available: 5V, 12V, 15V Available in surface mount package
HIGH RELIABILITY FEATURES - SG7800A/7800
Available to MIL-STD - 883 MIL-M38510/10702BXA - JAN7805T MIL-M38510/10703BXA - JAN7812T MIL-M38510/10704BXA - JAN7815T MIL-M38510/10706BYA - JAN7805K MIL-M38510/10707BYA - JAN7812K MIL-M38510/10708BYA - JAN7815K Radiation data available LMI level "S" processing available
SCHEMATIC DIAGRAM
*
* For normal operation the (VOS) sense pin must be externally connected to the load.
05/01 Rev 1.4
Copyright (c) 1997
1
11861 Western Avenue Garden Grove, CA 92841 (714) 898-8121 FAX: (714) 893-2570
LINFINITY
Microelectronics Inc.
SG7800A/SG7800 SERIES
ABSOLUTE MAXIMUM RATINGS (Note 1)
Device Output Voltage 5V 12V 15V Input Voltage 35V 35V 35V
POSITIVE REGULATOR
Input Voltage (transient) (Note 3) 50V 50V 50V Input Voltage Differential (Output shorted to ground) 35V 35V 35V
Operating Junction Temperature Hermetic (K, T, IG & L - Packages) .........................
Note 1. Values beyond which damage may occur.
150C
Storage Temperature Range .......................... -65C to 150C Lead Temperature (Soldering, 10 Seconds) ................. 300C
THERMAL DATA
K Package: Thermal Resistance-Junction to Case, JC ................. 3.0C/W Thermal Resistance-Junction to Ambient, JA ............... 35C/W T Package: Thermal Resistance-Junction to Case, JC .................. 15C/W Thermal Resistance-Junction to Ambient, JA ............ 120C/W IG Package: Thermal Resistance-Junction to Case, JC ................. 3.5C/W Thermal Resistance-Junction to Ambient, JA .............. 42C/W L Package: Thermal Resistance-Junction to Case, JC .................. 35C/W Thermal Resistance-Junction to Ambient, JA ............ 120C/W
Note A. Junction Temperature Calculation: TJ = TA + (PD x JA). Note B. The above numbers for JC are maximums for the limiting thermal resistance of the package in a standard mounting configuration. The JA numbers are meant to be guidelines for the thermal performance of the device/pc-board system. All of the above assume no ambient airflow.
RECOMMENDED OPERATING CONDITIONS
(Note 2)
Operating Junction Temperature Range: SG7800A/SG7800 ........................................ -55C to 150C
Note 2. Range over which the device is functional.
CHARACTERISTIC CURVES
Note 3. Operation at high input voltages is dependent upon load current. When load current is less than 5mA, output will rise out of regulation as inputoiutput differential icreases beyond 30V. Note also from Figure 1, that maximum load current is reduced at high voltages. The 50V input rating of the SG140A series refers to ability to withstnd high line or transient conditions without damage. Since the regulator's maximum current capability is reduced, the output may fall out of regulation at high input voltages under nominal loading.
FIGURE 1. PEAK OUTPUT CURRENT VS. INPUT - OUTPUT DIFFERENTIAL
05/01 Rev 1.4
Copyright (c) 1997
2
11861 Western Avenue Garden Grove, CA 92841 (714) 898-8121 FAX: (714) 893-2570
LINFINITY
Microelectronics Inc.
SG7800A/SG7800 SERIES
CHARACTERISTIC CURVES
(continued)
POSITIVE REGULATOR
FIGURE 2. MINIMUM INPUT - OUTPUT VOLTAGE VS. LOAD CURRENT
FIGURE 3. RIPPLE REJECTION VS. FREQUENCY
FIGURE 4. TEMPERATURE COEFFICIENT OF OUTPUT VOLTAGE
APPLICATIONS
FIGURE 5 - FIXED OUTPUT REGULATOR
FIGURE 6 - CIRCUIT FOR INCREASING OUTPUT VOLTAGE
FIGURE 7 - HIGH OUTPUT CURRENT, SHORT CIRCUIT PROTECTED
FIGURE 8 - ADJUSTABLE OUTPUT REGULATOR, 7V to 30V
05/01 Rev 1.4
Copyright (c) 1997
3
11861 Western Avenue Garden Grove, CA 92841 (714) 898-8121 FAX: (714) 893-2570
LINFINITY
Microelectronics Inc.
SG7800A/SG7800 SERIES
ELECTRICAL SPECIFICATIONS
5.0V POSITIVE REGULATOR
(Note 1) (Unless otherwise specified, these specifications apply over the operating ambient temperatures for SG7805A/SG7805 with -55C TA 150C, VIN = 10V, IO = 500mA for the K and IG -Power Packages-, IO = 100mA for the T and L packages, CIN = 0.33F, and COUT = 0.1F. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.)
SG7805A/SG7805 Parameter Output Voltage Line Regulation (Note 1) Load Regulation (Note 1) Test Conditions TJ = 25C VIN = 7.5V to 20V, TJ = 25C VIN = 8V to 12V, TJ = 25C Power Pkgs: IO = 5mA to 1.5A, TJ = 25C IO = 250mA to 750mA, TJ = 25C T - Pkg: IO = 5mA to 500mA, TJ = 25C VIN =8V to 20V Power Pkgs: IO = 5mA to 1.0A, P 20W T - Pkg: IO = 5mA to 500mA, P 2W Over Temperature Range TJ = 25C With Line: VIN = 8V to 25V With Load: IO = 5mA to 1.0A (Power Pkgs.) IO = 5mA to 500mA (T) VO = 100mV, TJ = 25C Power Pkgs: IO = 1.0A, T - Pkg: IO = 500mA Power Pkgs: VIN = 10V, TJ = 25C T - Pkg: VIN = 10V, TJ = 25C Power Pkgs: VIN = 35V, TJ = 25C T - Pkg: VIN = 35V, TJ = 25C VIN = 10V, f = 120Hz, TJ = 25C f = 10Hz to 100KHz (Note 2) 1000hrs. at TJ = 125C IO = 5mA SG7805 SG7805A Min. Typ. Max. Min. Typ. Max. 4.92 5.00 5.08 4.80 5.00 5.20 5 50 25 5 2 25 2 12 15 50 15 50 5 5 25 25 20 25 5 25 4.85 4.85 5.00 5.00 4 5.15 5.15 7 6 0.8 0.5 0.5 2.5 3.3 2.0 1.2 0.7 40 20 175 20 175 4.65 4.65 5.00 5.00 4 5.35 5.35 7 6 0.8 0.5 0.5 2.5 3.3 2.0 1.2 0.7 40 Units V mV mV mV mV mV V V mA mA mA mA mA V A A A A dB V/V mV C
Total Output Voltage Tolerance Quiescent Current Quiescent Current Change
Dropout Voltage Peak Output Current Short Circuit Current Ripple Rejection Output Noise Voltage (rms) Long Term Stability Thermal Shutdown
1.5 0.5
2 2.0 1.0
1.5 0.5
2 2.0 1.0
68
68
Note 1. All regulation tests are made at constant junction temperature with low duty cycle testing. 2. This test is guaranteed but is not tested in production. 05/01 Rev 1.4
Copyright (c) 1997
4
11861 Western Avenue Garden Grove, CA 92841 (714) 898-8121 FAX: (714) 893-2570
LINFINITY
Microelectronics Inc.
SG7800A/SG7800 SERIES
ELECTRICAL SPECIFICATIONS
12V POSITIVE REGULATOR
(Note 1) (Unless otherwise specified, these specifications apply over the operating ambient temperatures for SG7812A/SG7812 with -55C TA 150C, VIN = 19V, IO = 500mA for the K and IG -Power Packages-, IO = 100mA for the T and L packages, CIN = 0.33F, and COUT = 0.1F. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.)
SG7812A/SG7812 Parameter Output Voltage Line Regulation (Note 1) Load Regulation (Note 1) Test Conditions TJ = 25C VIN = 14.5V to 30V, T J = 25C VIN = 16V to 22V, TJ = 25C Power Pkgs: IO = 5mA to 1.5A, TJ = 25C IO = 250mA to 750mA, TJ = 25C T - Pkg: IO = 5mA to 500mA, TJ = 25C VIN = 15.5V to 27V Power Pkgs: IO = 5mA to 1.0A, P 20W T - Pkg: IO = 5mA to 500mA, P 2W Over Temperature Range TJ = 25C With Line: VIN = 15V to 30V With Load: IO = 5mA to 1.0A (Power Pkgs.) IO = 5mA to 500mA (T) VO = 100mV, TJ = 25C Power Pkgs: IO = 1.0A, T - Pkg: IO = 500mA Power Pkgs: TJ = 25C T - Pkg: TJ = 25C Power Pkgs: VIN = 35V, TJ = 25C T - Pkg: VIN = 35V, TJ = 25C VIN = 10V, f = 120Hz, TJ = 25C f = 10Hz to 100KHz (Note 2) 1000hrs. at TJ = 125C IO = 5mA SG7812 SG7812A Min. Typ. Max. Min. Typ. Max. 11.8 12.0 12.2 11.5 12.0 12.5 12 60 12 120 6 30 6 60 80 28 120 28 10 40 10 60 10 40 10 60 11.7 11.7 12.0 12.0 4 12.3 12.3 7 6 0.8 0.5 0.5 2.5 3.3 1.7 1.2 0.7 40 48 175 48 175 11.4 11.4 12.0 12.0 4 12.6 12.6 7 6 0.8 0.5 0.5 2.5 3.3 1.7 1.2 0.7 40 Units V mV mV mV mV mV V V mA mA mA mA mA V A A A A dB V/V mV C
Total Output Voltage Tolerance Quiescent Current Quiescent Current Change
Dropout Voltage Peak Output Current Short Circuit Current Ripple Rejection Output Noise Voltage (rms) Long Term Stability Thermal Shutdown
1.5 0.5
2 2.0 1.0
1.5 0.5
2 2.0 1.0
61
61
Note 1. All regulation tests are made at constant junction temperature with low duty cycle testing. 2. This test is guaranteed but is not tested in production. 05/01 Rev 1.4
Copyright (c) 1997
5
11861 Western Avenue Garden Grove, CA 92841 (714) 898-8121 FAX: (714) 893-2570
LINFINITY
Microelectronics Inc.
SG7800A/SG7800 SERIES
ELECTRICAL SPECIFICATIONS
15V POSITIVE REGULATOR
(Note 1) (Unless otherwise specified, these specifications apply over the operating ambient temperatures for SG7815A/SG7815 with -55C TA 150C, VIN = 23V, IO = 500mA for the K and IG -Power Packages-, IO = 100mA for the T and L packages, CIN = 0.33F, and COUT = 0.1F. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.)
SG7815A/SG7815 Parameter Output Voltage Line Regulation (Note 1) Load Regulation (Note 1) Test Conditions TJ = 25C VIN = 17.5V to 30V, T J = 25C VIN = 20V to 26V, TJ = 25C Power Pkgs: IO = 5mA to 1.5A, TJ = 25C IO = 250mA to 750mA, TJ = 25C T - Pkg: IO = 5mA to 500mA, TJ = 25C VIN = 18.5V to 30V Power Pkgs: IO = 5mA to 1.0A, P 20W T - Pkg: IO = 5mA to 500mA, P 2W Over Temperature Range TJ = 25C With Line: VIN = 18.5V to 30V With Load: IO = 5mA to 1.0A (Power Pkgs.) IO = 5mA to 500mA (T) VO = 100mV, TJ = 25C Power Pkgs: IO = 1.0A, T - Pkg: IO = 500mA Power Pkgs: TJ = 25C T - Pkg: TJ = 25C Power Pkgs: VIN = 35V, TJ = 25C T - Pkg: VIN = 35V, TJ = 25C VIN = 10V, f = 120Hz, TJ = 25C f = 10Hz to 100KHz (Note 2) 1000hrs. at TJ = 125C IO = 5mA SG7815 SG7815A Min. Typ. Max. Min. Typ. Max. 14.8 15.0 15.2 14.4 15.0 15.6 75 15 150 15 75 8 40 8 30 150 30 100 12 50 12 75 12 75 12 50 14.6 14.6 15.0 15.0 4 15.4 15.4 7 6 0.8 0.5 0.5 2.5 3.3 1.7 1.2 0.7 40 60 175 60 175 14.3 14.3 15.0 15.0 4 15.7 15.7 7 6 0.8 0.5 0.5 2.5 3.3 1.7 1.2 0.7 40 Units V mV mV mV mV mV V V mA mA mA mA mA V A A A A dB V/V mV C
Total Output Voltage Tolerance Quiescent Current Quiescent Current Change
Dropout Voltage Peak Output Current Short Circuit Current Ripple Rejection Output Noise Voltage (rms) Long Term Stability Thermal Shutdown
1.5 0.5
2 2.2 0.9
1.5 0.5
2 2.2 0.9
60
60
Note 1. All regulation tests are made at constant junction temperature with low duty cycle testing. 2. This test is guaranteed but is not tested in production. 05/01 Rev 1.4
Copyright (c) 1997
6
11861 Western Avenue Garden Grove, CA 92841 (714) 898-8121 FAX: (714) 893-2570
LINFINITY
Microelectronics Inc.
SG7800A/SG7800 SERIES
CONNECTION DIAGRAMS & ORDERING INFORMATION
Package
3-TERMINAL TO-3 METAL CAN K-PACKAGE (See Notes Below)
POSITIVE REGULATOR
Ambient Temperature Range -55C to 125C -55C to 125C -55C to 125C -55C to 125C -55C to 125C -55C to 125C -55C to 125C -55C to 125C -55C to 125C -55C to 125C 0C to 125C -55C to 125C -55C to 125C -55C to 125C -55C to 125C -55C to 125C -55C to 125C -55C to 125C -55C to 125C -55C to 125C -55C to 125C -55C to 125C -55C to 125C -55C to 125C -55C to 125C -55C to 125C -55C to 125C -55C to 125C -55C -55C -55C -55C to to to to 125C 125C 125C 125C
(See Notes 5 & 6)
1. N.C. 2. VIN 3. N.C. 4. N.C. 5. N.C. 6. N.C. 7. GND 8. N.C. 9. N.C. 10. VOUT
3 2 1 20 19
Part No. SG78XXAK/883B SG7805AK/DESC SG7812AK/DESC SG7815AK/DESC SG78XXAK SG78XXK/883B JAN7805K JAN7812K JAN7815K SG78XXK SG78XXK SG78XXAT/883B SG7805AT/DESC SG7812AT/DESC SG7815AT/DESC SG78XXAT SG78XXT/883B JAN7805T JAN7812T JAN7815T SG78XXT SG78XXAIG/883B SG7805AIG/DESC SG7812AIG/DESC SG7815AIG/DESC SG78XXAIG SG78XXIG/883B SG78XXIG SG7805AL/DESC SG7812AL/DESC SG7815AL/DESC SG78XXL/883B
Connection Diagram
VIN
1 2 CASE IS GROUND VOUT
3-PIN TO-39 METAL CAN T-PACKAGE
VIN VOUT
1 2 3 GROUND
CASE IS GROUND
3-PIN HERMETIC TO-257 IG-PACKAGE (Isolated)
VOUT GROUND VIN
20-PIN CERAMIC LEADLESS CHIP CARRIER L- PACKAGE
4 5 6 7 8
18 17 16 15 14
9
10 11 12 13
11. N.C. 12. VOUT 13. N.C. 14. N.C. 15. VO SENSE 16. N.C. 17. VIN 18. N.C. 19. N.C. 20. N.C.
Note 1. 2. 3. 4. 5. 6.
Contact factory for JAN and DESC product availability. All parts are viewed from the top. "XX" to be replaced by output voltage of specific fixed regulator. Some products will be available in hermetic flat pack (F). Consult factory for price and availability. Both inputs and outputs must be externally connected together at the device terminals. For normal operation, the VO SENSE pin must be externally connected to the load.
LINFINITY Microelectronics Inc.
05/01 Rev 1.4
Copyright (c) 1997
7
11861 Western Avenue Garden Grove, CA 92841 (714) 898-8121 FAX: (714) 893-2570

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