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OM7608SC OM7610SC OM7609SC
ISOLATED HERMETIC TO-258AA FIXED VOLTAGE REGULATORS
Three Terminal, Fixed Voltage, 3.0 Amp Precision Negative Regulators In Hermetic JEDEC TO-258AA Package
FEATURES
* * * * * * Isolated Hermetic Package, JEDEC TO-258AA Outline Ouput Voltages: -5V, -12V And -15V Output Voltages Set Internally To 2% (1% Available) Built-In Thermal Overload Protection Short Circuit Current Limiting Product Is Available Screened To MIL-STD-883
DESCRIPTION
These three terminal negative regulators are supplied in a hermetically sealed metal package whose outline is similar to the industry standard TO-247 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 with 1% available on request.
ABSOLUTE MAXIMUM RATINGS @ 25C
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -35V Operating Junction Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55C to +150C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to +150C Typical Power/Thermal Characteristics: Rated Power @ 25C TC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25W TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3W Thermal Resistance qJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5C/W qJA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42C/W
3.3
Note: For 1% device. add letter "A" in front of part number (e.g. OMA 7608SC).
4 11 R3 Supersedes 1 07 R2
3.3 - 147
OM7608SC - OM7610SC
ELECTRICAL CHARACTERISTICS: -5 VOLT OUTPUT (OM7608SC)TJ = -55 C to + 125 C
Parameter VOUT Test Conditions TJ = 25C, VIN = 10 V, IO = 5.0 mA 8.0 V VIN 35 V, 5 mA IO 3 A; P 25 W Line Regulation (Note 1) Load Regulation (Note 1) Thermal Regulation Ripple Rejection Miminum Load Current Current Limit Temperature Stability RMS Output Noise (% of VOUT) 8.0 V VIN 35 V, TJ = 25C 5.0 mA IO 3.0 A, TJ = 25C TA = 25C, 20 mS Pulse f = 120 Hz; VOUT = 5.0 V VIN = 35 V VIN = -13 V -55C T +150C TA = 25C, 10 Hz f 10 kHz Min. -4.90 -4.86 3 Typ. -5.00 -5.00 10 20 .002 66 4.3 .005 Max. -5.10 V -5.14 25 75 .01 15 2.0 mV mV %/W dB mA A % % Units
Note 1: Regulation is measured at a constant TJ. Changes in output due to heating must be taken into account separately. Pulse testing with low duty cycle is used.
ELECTRICAL CHARACTERISTICS: -12 VOLT OUTPUT ( OM7609SC)TJ = -55 C to + 125 C
Parameter VOUT Test Conditions TJ = 25C, VIN = 15 V, IO = 10 mA 15 V VIN 35 V, 5 mA IO 3 A; P 25 W Line Regulation (Note 1) Load Regulation (Note 1) Thermal Regulation Ripple Rejection Miminum Load Current Current Limit Temperature Stability 15 V VIN 35 V, TJ = 25C 5 mA IO 3.0 A, TJ = 25C TA = 25C, 20 mS Pulse f = 120 Hz; VOUT = 12 V VIN = 35 V VIN = -20 V -55C T +150C TA = 25C, 10 Hz f 10 kHz Min. -11.76 -11.66 3 Typ. -12.00 -12.06 10 40 .002 66 4.3 .005 Max. -12.24 V -12.33 60 90 .02 15 2.0 mV mV %/W dB mA A % % Units
3.3
RMS Output Noise (% of VOUT)
Note 1: Regulation is measured at a constant TJ. Changes in output due to heating must be taken into account separately. Pulse testing with low duty cycle is used.
3.3 - 148
OM7608SC - OM7610SC
ELECTRICAL CHARACTERISTICS: -15 Volt Output ( OM7610SC)TJ = -55 C to + 125 C
Parameter VOUT Test Conditions TJ = 25C, VIN = 23 V, IO = 5 mA 18 V VIN 35 V, 5 mA IO 3 A; P 25 W Line Regulation (Note 1) Load Regulation (Note 1) Thermal Regulation Ripple Rejection Miminum Load Current Current Limit Temperature Stability RMS Output Noise (% of VOUT) 18 V VIN 35 V, TJ = 25C 5 mA IO 3.0 A, TJ = 25C TA = 25C, 20 mS Pulse f = 120 Hz; VOUT = 15 V VIN = 35 V VIN = -23 V -55C T +150C TA = 25C, 10 Hz f 10 kHz Min. -14.70 -14.58 3 Typ. -15.00 -15.00 10 50 .002 66 4.3 .005 Max. -15.30 V -15.42 75 100 .02 15 2.0 mV mV %/W dB mA A % % Units
Note 1: Regulation is measured at a constant TJ. Changes in output due to heating must be taken into account separately. Pulse testing with low duty cycle is used.
Current Limit
6 Output Current (A) 5 4 3 2 1 0 0 5 10 15 20 25 30 35 Input-Output Differential (V)
Dropout Voltage
Input-Output Differential (V) Ripple Rejection (dB) 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2
TJ = -150C TJ = -55C TJ = -25C
Ripple Rejection
100 80
CADJ = 10F
3.3
CADJ = 0 VIN = -15 V VOUT = -10 V IL = 500mA, TJ = 25C
60 40 20 0 10
0.5 1.0 1.5 2.0 2.5 3.0 Output Current (A)
100 1k 10k 100k 1M Frequency (Hz)
3.3 - 149
OM7608SC - OM7610SC
TYPICAL APPLICATIONS
3 Amp Regulator
-VIN OM7608SC OM7609SC OM7610SC -VOUT +VIN
Dual Regulator
OM7605SC OM7606SC OM7607SC 1F +VOUT
+
1F 2F
5F
5F -VIN OM7608SC OM7609SC OM7610SC
2F -VOUT
MECHANICAL OUTLINE
.165 .155 .695 .685 .270 .240 .045 .035
PIN CONNECTION
Tab
.835 .815 .707 .697 .550 .530
.092 MAX. .750 .500 .005 .065 .055 .140 TYP.
3.3
.200 TYP.
1
2
3
NOTES: * Case is metal/hermetically sealed * Isolated Tab * This device is also available in a TO-257AA package. Call the factory for test conditions and limits.
Front View Pin 1: Ground Pin 2: Input Pin 3: Output Tab: Isolated
205 Crawford Street, Leominster, MA 01453 USA (508) 534-5776 FAX (508) 537-4246

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