View SG7905AT883B_862460.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

SG7900A/SG7900 SERIES
SG7900A/SG7900
NEGATIVE FIXED VOLTAGE REGULATOR
DESCRIPTION
The SG7900A/SG7900 series of negative regulators offer self-contained, fixed-voltage capability with up to 1.5A of load current. With a variety of output voltages and four package options this regulator series is an optimum complement to the SG7800A/SG7800, SG140 line of three terminal regulators. These units feature a unique band gap reference which allows the SG7900A series to be specified with an output voltage tolerance of 1.5%. The SG7900A versions also offer much improved line regulation characteristics. 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 single output capacitor (SG7900 series) or a capacitor and 5mA minimum load (SG120 series) 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, especially for the SG120 series. These devices are available in hermetically sealed TO-257, TO-3, TO-39 and LCC package.
FEATURES
* * * * * * * * Output voltage set internally to 1.5% on SG7900A Output current to 1.5A Excellent line and load regulation Foldback current limiting Thermal overload protection Voltages available: -5V, -12V, -15V Contact factory for other voltage options Available in surface mount package
HIGH RELIABILITY FEATURES - SG7900A/SG7900
Available to MIL-STD - 883 MIL-M38510/11501BXA - JAN7905T MIL-M38510/11505BYA - JAN7905K MIL-M38510/11502BXA - JAN7912T MIL-M38510/11506BYA - JAN7912K MIL-M38510/11503BXA - JAN7915T MIL-M38510/11507BYA - JAN7915K LMI level "S" processing available
SCHEMATIC DIAGRAM
**
**
For normal operation the (VOS) Sense Pin must be externally connected to the load.
05/01 Rev 1.5
Copyright 1999
1
11861 Western Avenue Garden Grove, CA 92841 (714) 898-8121 FAX: (714) 893-2570
LINFINITY
Microelectronics Inc.
SG7900A/SG7900 SERIES
ABSOLUTE MAXIMUM RATINGS (Note 1)
Device Output Voltage -5V -12V -15V Operating Junction Temperature Hermetic (K, T, IG & L - Packages) ........................
Note 1. Values beyond which damage may occur.
NEGATIVE REGULATOR
Input Voltage -35V -35V -40V Input Voltage Differential (Output shorted to ground) 35V 35V 35V
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: SG7900A/7900 ............................................. -55C to 150C
Note 2. Range over which the device is functional.
CHARACTERISTIC CURVES
FIGURE 1. MAXIMUM AVERAGE POWER DISSIPATION
FIGURE 2. QUIESCENT CURRENT VS. LOAD
FIGURE 3. TEMPERATURE COEFFICIENT
05/01 Rev 1.5
Copyright 1999
2
11861 Western Avenue Garden Grove, CA 92841 (714) 898-8121 FAX: (714) 893-2570
LINFINITY
Microelectronics Inc.
SG7900A/SG7900 SERIES
CHARACTERISTIC CURVES
(continued)
NEGATIVE REGULATOR
FIGURE 4. SHORTCIRCUIT CURRENT VS. VIN
FIGURE 5. QUIESCENT CURRENT VS. VIN
FIGURE 6. SHORT CIRCUIT CURRENT VS. VIN
FIGURE 7. DROPOUT CHARACTERISTICS
FIGURE 8. RIPPLE REJECTION VS. FREQUENCY
APPLICATIONS
FIGURE 9 - FIXED OUTPUT REGULATOR
FIGURE 10 - CIRCUIT FOR INCREASING OUTPUT VOLTAGE
NOTE: 1. C1 is required only if regulator is separated from rectifier filter. 2. Both C1 and C2 should be low E.S.R. types such as solid tantalum. If aluminum electrolytics are used, at least 10 times values shown should be selected. 3. If large output capacities are used, the regulators must be protected from momentary input shorts. A high current diode
NOTE: C3 optional for improved transient response and ripple rejec VOUT = V (REGULATOR) R 1 + R2 R1 R2 = V(REG) 15mA
05/01 Rev 1.5
Copyright 1999
3
11861 Western Avenue Garden Grove, CA 92841 (714) 898-8121 FAX: (714) 893-2570
LINFINITY
Microelectronics Inc.
SG7900A/SG7900 SERIES
ELECTRICAL SPECIFICATIONS
-5.0V NEGATIVE REGULATOR
(Note 1) (Unless otherwise specified, these specifications apply over the operating ambient temperatures for SG7905A/SG7905 with -55C TA 150C, VIN = -10V, IO = 500mA for the K and IG -Power Packages-, IO = 100mA for the T and L packages, CIN = 2F, and COUT = 1.0F. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.)
SG7905A/SG7905 Parameter Output Voltage Line Regulation (Note 1) Load Regulation (Note 1) Test Conditions TJ = 25C VIN = -7.5V to -25V, 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 Packages) 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 SG7905A SG7905 Min. Typ. Max. Min. Typ. Max. -4.92 -5.00 -5.08 -4.8 -5.0 -5.2 5 25 50 3 3 12 1 25 15 75 100 15 15 25 15 25 5 30 5 100 -4.85 -5.00 -5.15 -4.70 -5.00 -5.30 -4.85 -5.00 -5.15 -4.70 -5.00 -5.30 2.5 2.5 2.0 2.0 1.3 1.3 0.5 0.5 0.5 0.5 1.1 1.5 0.5 2.3 3.3 1.4 1.2 0.6 80 1.1 1.5 0.5 2.3 3.3 1.4 1.2 0.6 80 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
54 25 20 175
54 25 20 175
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 1.5
Copyright 1999
4
11861 Western Avenue Garden Grove, CA 92841 (714) 898-8121 FAX: (714) 893-2570
LINFINITY
Microelectronics Inc.
SG7900A/SG7900 SERIES
ELECTRICAL SPECIFICATIONS
-12V NEGATIVE REGULATOR
(Note 1) (Unless otherwise specified, these specifications apply over the operating ambient temperatures for SG7912A/SG7912 with -55C TA 150C, VIN = -19V, IO = 500mA for the K and IG -Power Packages-, IO = 100mA for the T and L packages, CIN = 2F, and COUT = 1.0F. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.)
SG7912A/SG7912 Parameter Output Voltage Line Regulation (Note 1) Load Regulation (Note 1) Test Conditions TJ = 25C VIN = -14.5V to -30V, TJ = 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 = -14.5V 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 = -14.5V to -30V with Load: IO = 5mA to 1.0A (Power Packages) 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 SG7912A SG7912 Min. Typ. Max. Min. Typ. Max. -11.8 -12.0 -12.2 -11.5 -12.0 -12.5 4 60 10 120 30 3 3 60 12 20 90 120 40 4 10 60 10 10 40 240 -11.7 -12.0 -12.3 -11.4 -12.0 -12.6 -11.7 -12.0 -12.3 -11.4 -12.0 -12.6 4 4 3 3 1.0 1.0 0.5 0.5 0.5 0.5 1.1 1.5 0.5 2.3 3.3 1.4 1.2 0.6 80 1.1 1.5 0.5 2.3 3.3 1.4 0.2 0.6 80 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
54 25 60 175
54 25 60 175
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 1.5
Copyright 1999
5
11861 Western Avenue Garden Grove, CA 92841 (714) 898-8121 FAX: (714) 893-2570
LINFINITY
Microelectronics Inc.
SG7900A/SG7900 SERIES
ELECTRICAL SPECIFICATIONS
-15V NEGATIVE REGULATOR
(Note 1) (Unless otherwise specified, these specifications apply over the operating ambient temperatures for SG7915A/SG7915 with -55C TA 150C, VIN = -23V, IO = 500mA for the K and IG -Power Packages-, IO = 100mA for the T and L packages, CIN = 2F, and COUT = 1.0F. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.)
SG7915A/SG7915 Parameter Output Voltage Line Regulation (Note 1) Load Regulation (Note 1) Test Conditions TJ = 25C VIN = -17.5V to -30V, TJ = 25C VIN = -20V to -25V, 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 Packages) 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 SG7915A SG7915 Min. Typ. Max. Min. Typ. Max. -14.8 -15.0 -15.2 -14.4 -15.0 -15.6 5 75 11 150 3 40 3 75 30 100 12 150 4 50 4 75 10 50 10 240 -14.6 -15.0 -15.4 -14.25 -15.00 -15.75 -14.6 -15.0 -15.4 -14.25 -15.00 -15.75 4 4 3 3 1.0 1.0 0.5 0.5 0.5 0.5 1.1 1.5 0.5 2.3 3.3 1.4 1.2 0.6 80 1.1 1.5 0.5 2.3 3.3 1.4 1.2 0.6 80 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
54 25 60 175
54 25 60 175
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 1.5
Copyright 1999
6
11861 Western Avenue Garden Grove, CA 92841 (714) 898-8121 FAX: (714) 893-2570
LINFINITY
Microelectronics Inc.
SG7900A/SG7900 SERIES
CONNECTION DIAGRAMS & ORDERING INFORMATION
Package
3-TERMINAL TO-3 METAL CAN K-PACKAGE
NEGATIVE REGULATOR
(See Notes Below)
Part No. SG79XXAK/883B SG7905AK/DESC SG7912AK/DESC SG7915AK/DESC SG79XXAK SG79XXK/883B JAN7905K JAN7912K JAN7915K SG79XXK SG79XXK SG79XXAT/883B SG7905AT/DESC SG7912AT/DESC SG7915AT/DESC SG79XXAT SG79XXT/883B JAN7905T JAN7912T JAN7915T SG79XXT
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
Connection Diagram
GROUND
1
2 CASE IS VIN VOUT
3-PIN TO-39 METAL CAN T-PACKAGE
GROUND VOUT
1 2 3 VIN
CASE IS VIN
3-PIN HERMETIC TO-257 IG-PACKAGE (Isolated)
SG79XXAIG/883B SG7905AIG/DESC SG7912AIG/DESC SG7915AIG/DESC SG79XXAIG SG79XXIG/883B SG79XXIG
-55C to 125C -55C to 125C -55C to 125C -55C to 125C -55C to 125C -55C to 125C -55C to 125C
(See Notes 5 & 6)
1. N.C. 2. VIN 3. N.C. 4. VO 5. VO 6. N.C. 7. VO SENSE 8. N.C. 9. N.C. 10. N.C.
3 2 1 20 19
VOUT VIN GROUND
20-PIN CERAMIC LEADLESS CHIP CARRIER L- PACKAGE
SG79XXL/883B SG79XXL SG7905AL/DESC SG7912AL/DESC SG7915AL/DESC
-55C to 125C -55C to 125C -55C to 125C -55C to 125C -55C to 125C
4 5 6 7 8 9 10 11 12 13
18 17 16 15 14
11. N.C. 12. N.C. 13. N.C. 14. N.C. 15. GND 16. N.C. 17. GND 18. N.C. 19. N.C. 20. VIN
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.
11861 Western Avenue Garden Grove, CA 92841 (714) 898-8121 FAX: (714) 893-2570
05/01 Rev 1.5
Copyright 1999
LINFINITY
Microelectronics Inc.
7

▲Up To Search▲

Price & Availability of SG7905AT883B

	To Download SG7905AT883B Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .