OM7639SM
OM7640SM
OM7641SM
SURFACE MOUNT POSITIVE VOLTAGE
REGULATOR, 3-TERMINAL, FIXED VOLTAGE
Isolated Hermetic Surface Mount Package
1.5 Amp, +5V, +12V, +15V Positive Voltage
Regulators
FEATURES
•
•
•
•
•
•
•
Small Hermetic Surface Mount Package
Chip Isolated From Package
Output Voltages: 5V, 12V, 15V
Output Voltages Set Internally To ±1%
Built-In Thermal Overload Protection
Short Circuit Current Limiting
Product Is Available Hi-Rel Screened
DESCRIPTION
These three terminal positive regulators are supplied in a hermetic metal surface
mount 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 1.5 amps of output current. These units feature internally trimmed output
voltages to ±1% of nominal output voltage. Standard voltages are 5V, 12V, and 15V.
These units are ideally suited for Military applications where a hermetically sealed
surface mount package is required.
ABSOLUTE MAXIMUM RATINGS
@ 25°C
Input to Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +35V
Operating Junction Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . - 55°C to + 150°C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 55°C to + 150°C
Typical Power/Thermal Characteristics:
Rated Power @ 25°C
T
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17.5W
T
A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3W
Thermal Resistance:
θ
JC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2°C/W
θ
JA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42°C/W
Lead Temperature at Case (5 sec)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225°C
3.5
4 11 R1
Supersedes 1 05 R0
3.5 - 135
OM7639SM - OM7641SM
ELECTRICAL CHARACTERISTICS 5 Volt
Parameter
Output Voltage
Symbol
V
OUT
V
RLINE
V
IN
= 10V, I
o
= 500mA, -55°C ≤ T
A
≤ 125°C (unless otherwise specified)
Min.
4.92
Max.
5.08
5.15
5
Unit
V
V
mV
mV
mV
mV
mV
mV
mV
mV
mA
mA
mA
Test Conditions
T
A
= 25°C
V
IN
= 7.5V to 20V
•
•
4.85
Line Regulation
(Note 1)
V
IN
= 7.5V to 20V
V
IN
= 8.0V to 12V
12
4
•
Load Regulation
(Note 1)
I
O
= 250mA to 750 mA
V
RLOAD
I
O
= 5mA to 1.5 Amp
10
12
•
•
25
6
15
6
Standby Current Drain
I
SCD
∆I
SCD
(Line)
∆I
SCD
(Load)
V
DO
I
O (pk)
I
DS
∆V
IN
∆V
OUT
N
O
∆V
OUT
∆t
T
A
= 25°C,
∆V
OUT
= 100mV, I
O
=
1.0A
T
A
= 25°C
V
IN
= 35V
1.5
I
O
= 5mA to 1000mA
V
IN
= 7.5V to 20V
Standby Current Drain
Change With Line
Standby Current Drain
Change With Load
Dropout Voltage
Peak Output Current
Short Circuit Current
(Note 2)
Ripple Rejection
•
•
•
6.5
0.8
0.5
mA
2.5
3.3
1.2
V
A
A
A
dB
dB
•
f =120 Hz,
∆V
IN
= 10V
(Note 3)
T
A
= 25°C, f =10 Hz to 100KHz
T
A
= 25°C, t = 1000 hrs.
66
2.8
•
60
40
Output Noise Voltage
(Note 3)
Long Term Stability
(Note 3)
µV/V
RMS
75
mV
ELECTRICAL CHARACTERISTICS 12 Volt
Parameter
Output Voltage
Symbol
V
OUT
V
RLINE
V
IN
= 19V, I
o
= 500mA, -55°C ≤ T
A
≤ 125°C (unless otherwise specified)
Min.
11.88
Max.
12.12
12.36
18
Unit
V
V
mV
mV
mV
mV
mV
mV
mV
mV
mA
mA
mA
Test Conditions
T
A
= 25°C
V
IN
= 14.5V to 27V
•
•
11.64
Line Regulation
(Note 1)
V
IN
= 14.5V to 27V
V
IN
= 16V to 22V
50
9
•
Load Regulation
(Note 1)
I
O
= 250mA to 750 mA
V
RLOAD
I
O
= 5mA to 1.5 Amp
30
32
•
•
60
20
40
6.0
Standby Current Drain
I
SCD
∆I
SCD
(Line)
∆I
SCD
(Load)
V
DO
I
O (pk)
I
DS
∆V
IN
∆V
OUT
N
O
∆V
OUT
∆t
∆V
OUT
= 100mV, I
O
=
1.0A
T
A
= 25°C
V
IN
= 35V
I
O
= 5mA to 1000mA
V
IN
= 15V to 30V
Standby Current Drain
Change With Line
Standby Current Drain
Change With Load
Dropout Voltage
Peak Output Current
Short Circuit Current
(Note 2)
Ripple Rejection
•
•
•
•
1.5
6.5
0.8
0.5
mA
2.5
3.3
1.2
V
A
A
A
dB
dB
•
f =120 Hz,
∆V
IN
= 10V
(Note 3)
T
A
= 25°C, f =10 Hz to 100KHz
T
A
= 25°C, t = 1000 hrs.
61
2.8
•
54
40
3.5
Output Noise Voltage
(Note 3)
Long Term Stability
(Note 3)
µV/V
RMS
120
mV
Notes:
1. Load and Line Regulation are specified at a constant junction temperature. Pulse testing with low duty cycle is used.
Changes in output voltage due to heating effects must be taken into account separately.
2. Short Circuit protection is only assured up to V
IN
= 35V.
3. If not tested, shall be guaranteed to the specified limits.
The • denotes the specifications which apply over the full operating temperature range.
3.5 - 136
OM7639SM - OM7641SM
ELECTRICAL CHARACTERISTICS 15 Volt
Parameter
Output Voltage
Symbol
V
OUT
V
RLINE
V
IN
= 23V, I
o
= 500mA, -55°C ≤ T
A
≤ 125°C (unless otherwise specified)
Min.
14.8
Max.
15.2
15.4
20
Unit
V
V
mV
mV
mV
mV
mV
mV
mV
mV
mA
mA
mA
Test Conditions
T
A
= 25°C
V
IN
= 18.5V to 30V
•
•
14.6
Line Regulation
(Note 1)
V
IN
= 17.5V to 30V
V
IN
= 20V to 26V
50
15
•
Load Regulation
(Note 1)
V
RLOAD
I
O
= 5mA to 1.5 Amp
I
O
= 5mA to 1.0 Amp
I
O
= 250mA to 750 mA
25
35
•
•
75
21
45
6.0
Standby Current Drain
I
SCD
∆I
SCD
(Line)
∆I
SCD
(Load)
V
DO
I
O (pk)
I
DS
∆V
IN
∆V
OUT
N
O
∆V
OUT
∆t
T
A
= 25°C,
∆V
OUT
= 100mV, I
O
=
1.0A
T
A
= 25°C
V
IN
= 35V
1.5
I
O
= 5mA to 1000mA
V
IN
= 18.5V to 30V
Standby Current Drain
Change With Line
Standby Current Drain
Change With Load
Dropout Voltage
Peak Output Current
Short Circuit Current
(Note 2)
Ripple Rejection
•
•
•
6.5
0.8
0.5
mA
2.5
3.3
1.2
V
A
A
A
dB
dB
•
f =120 Hz,
∆V
IN
= 10V
(Note 3)
T
A
= 25°C, f =10 Hz to 100KHz
T
A
= 25°C, t = 1000 hrs.
54
2.8
•
52
40
Output Noise Voltage
(Note 3)
Long Term Stability
(Note 3)
µV/V
RMS
150
mV
Notes:
1. Load and Line Regulation are specified at a constant junction temperature. Pulse testing with low duty cycle is used.
Changes in output voltage due to heating effects must be taken into account separately.
2. Short Circuit protection is only assured up to V
IN
= 35V.
3. If not tested, shall be guaranteed to the specified limits.
The • denotes the specifications which apply over the full operating temperature range.
TYPICAL PERFORMANCE CHARACTERISTICS
PEAK OUTPUT CURRENT
3.5
3
T
j
= -55°C
DROPOUT VOLTAGE
2.5
100
I
OUT
= 1A
RIPPLE REJECTION
Input To Output Differential (V)
2
2.5
2
1.5
1
0.5
∆V
OUT
= 100mV
T
j
= 150°C
1.5
I
OUT
= 500mA
Ripple Rejection (dB)
80
V
OUT
= 5V
Output Current (A)
60
T
j
= 25°C
1
I
OUT
= 0A
40
V
IN
- V = 8V
DC
+3.5V
rms
I
OUT
= 1A
T
j
= 25°C
3.5
0.5
∆V
OUT
= 100MV
20
0
0
5
10
15
20
25
30
35
0
0
-75-50 -25 0
2 5 5 0 7 5 100 125150
10
100
1k
10k
Input To Output Differential (V)
Junction Temperature (°C)
Frequency (Hz)
3.5 - 137
OM7639SM - OM7641SM
TYPICAL APPLICATIONS
FIXED OUTPUT REGULATOR
CIRCUIT FOR INCREASING OUTPUT VOLTAGE
INPUT
1
OM7639SM
2
OUTPUT
INPUT
1
OM7639SM
2
OUTPUT
0.33 µFt
3
0.1 µF*
Vxx
0.33 µF
3
I
Q
R1
0.1 µF
R2
* Increasing value of output capacitor
improves system transient response
t Required only if regulator is located
an appreciable distance from power
supply filter.
V
O
= Vxx (1 +R2) + I
Q
R2
R1
HIGH OUTPUT CURRENT,
SHORT CIRCUIT PROTECTED
R
SC
2N4398
ADJUSTABLE OUTPUT REGULATOR,
7 TO 30 VOLTS
INPUT
1
OM7639SM
3
2
OUTPUT
INPUT
R
1
3Ω
2N6124
1
OM7639SM
2
OUTPUT
0.33 µF
0.1 µF
-
LM741
+
10K
0.1 µF
0.33 µF
3
1KΩ
MECHANICAL OUTLINE
.425
PIN CONNECTION
2
.100
.200
.425
.035 WIDE
FLAT 3 PLCS.
1
3
3.5
.350 MIN.
± .020
.115
.160
.020
.080
Pin 1:
Pin 2:
Pin 3:
Case:
Ground
V
IN
V
OUT
Isolated
Analogue and Mixed Signal
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